@inproceedings{Karvovskaya2013, author = {Karvovskaya, Lena}, title = {'Also' in Ishkashimi : additive particle and sentence connector}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-66097}, year = {2013}, abstract = {The paper discusses the distribution and meaning of the additive particle -m@s in Ishkashimi. -m@s receives different semantic associations while staying in the same syntactic position. Thus, structurally combined with an object, it can semantically associate with the focused object or with the whole focused VP; similarly, combined with the subject it can semantically associate with the focused subject and with the whole focused sentence.}, language = {en} } @inproceedings{DrużbickaGibasTuszyńska2003, author = {Drużbicka, Aleksandra and Gibas, Marta and Tuszyńska, Joanna}, title = {Świadomość językowa młodej inteligencji śląskiej}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27755}, year = {2003}, language = {mul} } @inproceedings{ItzerottKaden2006, author = {Itzerott, Sibylle and Kaden, Klaus}, title = {Zur G{\"u}te der automatisierten Erkennung von Ackerkulturen in Abh{\"a}ngigkeit vom Bodenmuster : Projektergebnisse und weiterf{\"u}hrende Ans{\"a}tze}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-7031}, year = {2006}, abstract = {Problemstellung • Geo{\"o}kologische Prozessforschung versucht f{\"u}r große Landschaftsausschnitte, die in der Natur ablaufenden und vom Menschen beeinflussten Prozesse mit Hilfe von Modellen nachzuvollziehen • exakte Erfassung der Ausstattung des Untersuchungsraumes ist wesentliche Voraussetzung f{\"u}r eine wirklichkeitsnahe Abbildung • Modelle derzeit weder in der Lage, alle ablaufenden Prozesse in die Betrachtung einzubeziehen, noch pr{\"a}zise Eingangsdaten bei der Beschreibung des Ausgangszustandes zu verarbeiten • h{\"a}ufig liegen Modelleingangsdaten nicht in der notwendigen Pr{\"a}zision vor • In Modellen wird Ausstattung eines Untersuchungsgebietes {\"u}ber den Boden, den Grundwassereinfluss und die Fl{\"a}chennutzung beschrieben • Fl{\"a}chennutzung besitzt weitgehend statische Elemente (Nutzungstypen Wald, Gew{\"a}sser, Siedlung) und hochdynamische Elemente (j{\"a}hrlicher Wechsel der Fruchtart auf jedem Acker) • Bedarf nach detaillierter (lage- und zeitkonkreter) Eingabe der Verteilung der Ackerfr{\"u}chte im Modellzeitraum, da Landwirtschaft als eine der bedeutenden Quellen f{\"u}r diffusen N{\"a}hrstoffeintrag ins {\"O}kosystem angesehen wird Stand der Forschung • bei Erfassung von Kulturen der Landwirtschaft aus Fernerkundungsdaten hat sich multitemporale Klassifizierung als sinnvoll erwiesen, weil sich anhand einer Einzelaufnahme die verschiedenen Kulturen nicht sicher trennen lassen • Klassifizierung erfolgt mit {\"u}berwachten Methoden unter Verwendung von Trainingsfl{\"a}chen im Datensatz, von denen die dort angebaute Frucht bekannt ist • in die Klassifizierung werden zus{\"a}tzliche Informationen einbezogen (Fuzzy), die Auskunft {\"u}ber die Wahrscheinlichkeit des Auftretens der Frucht geben (Anbaueignung in Abh{\"a}ngigkeit von Hangneigung, Niederschlag, H{\"o}henlage, Boden) Die Ergebnisse dieser Klassifikationen sind meist nicht auf andere Landschaftsausschnitte und Anbaujahre {\"u}bertragbar, weil die Auspr{\"a}gung der Spektralsignatur einer Kultur durch ver{\"a}nderte Boden- und Witterungsbedingungen variiert. L{\"o}sungsansatz • auf Basis von Satellitendaten und Anbauinformationen aus 15 aufeinander folgenden Jahren (35 Aufnahmetermine) sollten von Witterung und Boden unabh{\"a}ngige Jahreskurven der spektralen Charakteristik wichtiger Ackerkulturen gewonnen werden, die den Wachstumsverlauf der Pflanzen beschreiben • diese Kurven sollen anstelle von Trainingsgebieten zur multitemporalen Klassifizierung von Daten eines Anbaujahres herangezogen werden Schlussfolgerungen und Ausblick • Prinzipiell erscheint Vorgehen erfolgreich, jedoch in Abh{\"a}ngigkeit von der Brauchbarkeit der herangezogenen Szenen schwankt G{\"u}te des Ergebnisses noch • Verfahren stellt wesentlichen Fortschritt zu bisherigem Vorgehen auf Trainingsfl{\"a}chenbasis dar • ist zumindest im Untersuchungsgebiet immer wieder ohne weitere Kenntnis von Anbauinformationen anwendbar, lediglich exakte ph{\"a}nologische Datierung der dann verwendeten Aufnahmen erforderlich • f{\"u}r andere Gebiete (Variation in Niederschlag und Boden) ist Anpassung der ph{\"a}nologischen Datierung der Kurven erforderlich (Form ist weiter verwendbar) • optimale Bildkombination zur Trennung aller Kulturen ist: Anfang/Mitte April - Mitte Mai - Anfang Juli - Mitte August - Mitte September • Kombination sollte bei verbesserter Verf{\"u}gbarkeit von Daten beschaffbar sein • problematisch scheinen Trockensituationen im Mai und Juni zu sein, so dass zu schnell reifende Wintergetreide nicht richtig erkannt werden, Bedarf Bodeninformationen einzubeziehen • Trennung von Hackfr{\"u}chten weiterhin problematisch (wie schon in bisherigen Verfahren), f{\"u}hrt zu {\"u}berm{\"a}ßigen Anteilen im Ergebnis, in Abh{\"a}ngigkeit vom Anbauanteil besser vernachl{\"a}ssigen • Einbeziehung von Fuzzyinformationen erscheint sinnvoll • Zusammenhang von Bodeng{\"u}te und Frucht (Anbaueignung eines Bodens f{\"u}r eine Frucht) • Wasserverf{\"u}gbarkeit am Standort (in Abh{\"a}ngigkeit von Speicherverm{\"o}gen des Bodens, Grundwasseranschluss und Niederschlag) • Summe der Niederschl{\"a}ge bis zum Aufnahmezeitpunkt (Trockenheitsindex)
Dokument 1: Foliensatz | Dokument 2: Abstract
Interdisziplin{\"a}res Zentrum f{\"u}r Musterdynamik und Angewandte Fernerkundung Workshop vom 9. - 10. Februar 2006}, language = {de} } @inproceedings{Schultze2005, author = {Schultze, Winfried}, title = {Zufall - Wunsch - Planung : die Erwerbung von Nachl{\"a}ssen zur Bestandserg{\"a}nzung}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-6098}, year = {2005}, abstract = {Nachl{\"a}sse sind pers{\"o}nliches Eigentum und unterliegen deshalb keiner Abgabepflicht. Der Wunsch des Nachlassers bez{\"u}glich der weiteren Aufbewahrung seines schriftlichen Erbes ist demzufolge prim{\"a}r gegen{\"u}ber allen unseren W{\"u}nschen. Wir k{\"o}nnen nicht fordern, sondern nur bitten, uns durch eigene Leistungen anbieten und die zuk{\"u}nftigen Nachlassenden oder deren Erben {\"u}berzeugen. Die nicht vorhandene institutionelle Zust{\"a}ndigkeit f{\"u}r die {\"U}bernahme von Nachl{\"a}ssen erzeugt die Reibungspunkte zwischen den Einrichtungen, die sich um den Erwerb von Nachl{\"a}ssen bem{\"u}hen: Archive - Bibliotheken - Museen - Sammlungen. Die W{\"u}nsche zum Erwerb des Nachlasses einer bestimmten Person - egal ob Wissenschaftler, K{\"u}nstler oder Politiker - sind demzufolge immer an verschiedenen Orten gleichzeitig vorhanden. Der Zufall entscheidet dann leider meist dar{\"u}ber, an welcher Stelle der Nachlass zuk{\"u}nftig verwahrt und wissenschaftlich genutzt wird. Es stellt sich die Frage, ob wir auf solche Zuf{\"a}lle hoffen und warten sollen, oder ob wir nicht eher eine engagierte - gemeinsam zwischen den Archiven abgestimmte - Erwerbspolitik betrieben sollten. ------------ Beitr{\"a}ge zum Thema "Nachl{\"a}sse an Universit{\"a}ts- und Hochschularchiven sowie Archiven wissenschaftlicher Institutionen" im Rahmen der Fr{\"u}hjahrstagung der Fachgruppe 8: "Archivare an Hochschularchiven und Archiven wissenschaftlicher Institutionen" am 16./17. Juni an der Universit{\"a}t Potsdam.}, subject = {Archiv}, language = {de} } @inproceedings{GebserHinrichsSchaubetal.2010, author = {Gebser, Martin and Hinrichs, Henrik and Schaub, Torsten H. and Thiele, Sven}, title = {xpanda: a (simple) preprocessor for adding multi-valued propositions to ASP}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41466}, year = {2010}, abstract = {We introduce a simple approach extending the input language of Answer Set Programming (ASP) systems by multi-valued propositions. Our approach is implemented as a (prototypical) preprocessor translating logic programs with multi-valued propositions into logic programs with Boolean propositions only. Our translation is modular and heavily benefits from the expressive input language of ASP. The resulting approach, along with its implementation, allows for solving interesting constraint satisfaction problems in ASP, showing a good performance.}, language = {en} } @inproceedings{RaassenHuchtMilleretal.2007, author = {Raassen, A. J. J. and Hucht, K. A. van der and Miller, N. A. and Cassinelli, Joseph P.}, title = {XMM-Newton observations of zeta Orionis (O9.7 Ib) : a collisional ionization equilibrium model}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17747}, year = {2007}, abstract = {We present the analysis of XMM-Newton observations of ζ Orionis. The analysis is based on fitting to the total spectrum as well as diagnostics of individual line.}, language = {en} } @inproceedings{OskinovaHamannFeldmeier2007, author = {Oskinova, Lida and Hamann, Wolf-Rainer and Feldmeier, Achim}, title = {X-raying clumped stellar winds}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-18133}, year = {2007}, abstract = {X-ray spectroscopy is a sensitive probe of stellar winds. X-rays originate from optically thin shock-heated plasma deep inside the wind and propagate outwards throughout absorbing cool material. Recent analyses of the line ratios from He-like ions in the X-ray spectra of O-stars highlighted problems with this general paradigm: the measured line ratios of highest ions are consistent with the location of the hottest X-ray emitting plasma very close to the base of the wind, perhaps indicating the presence of a corona, while measurements from lower ions conform with the wind-embedded shock model. Generally, to correctly model the emerging Xray spectra, a detailed knowledge of the cool wind opacities based on stellar atmosphere models is prerequisite. A nearly grey stellar wind opacity for the X-rays is deduced from the analyses of high-resolution X-ray spectra. This indicates that the stellar winds are strongly clumped. Furthermore, the nearly symmetric shape of X-ray emission line profiles can be explained if the wind clumps are radially compressed. In massive binaries the orbital variations of X-ray emission allow to probe the opacity of the stellar wind; results support the picture of strong wind clumping. In high-mass X-ray binaries, the stochastic X-ray variability and the extend of the stellar-wind part photoionized by X-rays provide further strong evidence that stellar winds consist of dense clumps.}, language = {en} } @inproceedings{CassinelliIgnaceWaldronetal.2007, author = {Cassinelli, Joseph P. and Ignace, R. and Waldron, W. and Cho, J. and Murphy, N. and Lazarian, A.}, title = {X-ray line emission produced in clump bow shocks}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-18057}, year = {2007}, abstract = {We summarize Chandra observations of the emission line profiles from 17 OB stars. The lines tend to be broad and unshifted. The forbidden/intercombination line ratios arising from Helium-like ions provide radial distance information for the X-ray emission sources, while the H-like to He-like line ratios provide X-ray temperatures, and thus also source temperature versus radius distributions. OB stars usually show power law differential emission measure distributions versus temperature. In models of bow shocks, we find a power law differential emission measure, a wide range of ion stages, and the bow shock flow around the clumps provides transverse velocities comparable to HWHM values. We find that the bow shock results for the line profile properties, consistent with the observations of X-ray line emission for a broad range of OB star properties.}, language = {en} } @inproceedings{Fiedlerowa2003, author = {Fiedlerowa, Alicja}, title = {Wulgaryzmu wpływ na urodę języka}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27779}, year = {2003}, language = {mul} } @inproceedings{Szeifert2007, author = {Szeifert, T.}, title = {Wind variabilities and asymmetries in Luminous Blue Variables}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-18146}, year = {2007}, abstract = {Luminous Blue Variables show strong changes in their stellar wind on time scales of typically years to decades when they expand and contract radially at approximately constant luminosity. Micro-variability on shorter time scales and amplitudes can be observed superimposed to the larger scale radial changes. I will show long-term time series of high resolution spectra which we have collected in the past 20 years for many of the well known LBVs together with a few time series of weekly sampling (HR Car, R40, R71, R110, R127, S Dor) covering a time windows of up to a few months. Wind variability is seen on short and intermediate time scales with the line profiles changing from P Cygni to inverse P Cygni and double peeked profiles sometimes for the same star and spectral line. On longer time scales the ionisation levels for all chemical elements change drastically due to the strong change of the temperature on the stellar surface. While on the long term the characteristic radial changes may have impact on the over all mass loss rates, the variabilities and asymmetries on short and intermediate time scales may cause false estimates of the mass loss rates when confronting models with the observed line profiles}, language = {en} } @inproceedings{Weis2007, author = {Weis, K.}, title = {Wind relics : clumps, inhomogeneities and outflows in LBV nebulae}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-18235}, year = {2007}, abstract = {The most massive stars are those with the shortest but most active life. One group of massive stars, the Luminous Blue Variables (LBVs), of which only a few objects are known, are in particular of interest concerning the stability of stars. They have a high mass loss rate and are close to being instable. This is even more likely as rotation becomes an important factor in stellar evolution of these stars. Through massive stellar winds and sometimes giant eruptions, LBV nebulae are formed. Various aspects in the evolution in the LBV phase lead, beside the large scale morphological and kinematical differences, to a diversity of small structures like clumps, rims, and outflows in these nebulae.}, language = {en} } @inproceedings{Marchenko2007, author = {Marchenko, S. V.}, title = {Wind inhomogeneities in low-Z environment : observations}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17769}, year = {2007}, abstract = {We discuss the results of time-resolved spectroscopy of three presumably single Population I Wolf-Rayet stars in the Small Magellanic Cloud, where the ambient metallicity is \$\sim 1/5 Z_\odot\$. We were able to detect and follow numerous small-scale wind-embedded inhomogeneities in all observed stars. The general properties of the moving features, such as their velocity dispersions, emissivities and average accelerations, closely match the corresponding characteristics of small-scale inhomogeneities in the winds of Galactic Wolf-Rayet stars.}, language = {en} } @inproceedings{KrausKubatKrtička2007, author = {Kraus, M. and Kub{\´a}t, Jiř{\´i} and Krtička, Jiri}, title = {Wind emission of OB supergiants and the influence of clumping}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17757}, year = {2007}, abstract = {The influence of the wind to the total continuum of OB supergiants is discussed. For wind velocity distributions with β > 1.0, the wind can have strong influence to the total continuum emission, even at optical wavelengths. Comparing the continuum emission of clumped and unclumped winds, especially for stars with high β values, delivers flux differences of up to 30\% with maximum in the near-IR. Continuum observations at these wavelengths are therefore an ideal tool to discriminate between clumped and unclumped winds of OB supergiants.}, language = {en} } @inproceedings{Bartle2008, author = {Bartle, Richard}, title = {When openness closes : the line between play and design}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-24536}, year = {2008}, abstract = {One of the informal properties often used to describe a new virtual world is its degree of openness. Yet what is an "open" virtual world? Does the phrase mean generally the same thing to different people? What distinguishes an open world from a less open world? Why does openness matter anyway? The answers to these questions cast light on an important, but shadowy, and uneasy, topic for virtual worlds: the relationship between those who construct the virtual, and those who use these constructions.}, language = {en} } @inproceedings{Zhou2010, author = {Zhou, Neng-Fa}, title = {What I have learned from all these solver competitions}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41431}, year = {2010}, abstract = {In this talk, I would like to share my experiences gained from participating in four CSP solver competitions and the second ASP solver competition. In particular, I'll talk about how various programming techniques can make huge differences in solving some of the benchmark problems used in the competitions. These techniques include global constraints, table constraints, and problem-specific propagators and labeling strategies for selecting variables and values. I'll present these techniques with experimental results from B-Prolog and other CLP(FD) systems.}, language = {en} } @inproceedings{Kholtygin2007, author = {Kholtygin, A. F.}, title = {Wavelets for looking for clumping in the wind of OB stars}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17796}, year = {2007}, abstract = {Clumping in hot-star winds : proceedings of an international workshop held in Potsdam, Germany, 18. - 22. June 2007}, language = {en} } @inproceedings{HannousseArdourelDouence2010, author = {Hannousse, Abdelhakim and Ardourel, Gilles and Douence, R{\´e}mi}, title = {Views for aspectualizing component models}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41359}, year = {2010}, abstract = {Component based software development (CBSD) and aspectoriented software development (AOSD) are two complementary approaches. However, existing proposals for integrating aspects into component models are direct transposition of object-oriented AOSD techniques to components. In this article, we propose a new approach based on views. Our proposal introduces crosscutting components quite naturally and can be integrated into different component models.}, language = {en} } @inproceedings{ReimerAharonianHintonetal.2007, author = {Reimer, O. and Aharonian, Felix A. and Hinton, J. and Hofmann, W. and Hoppe, S. and Raue, M. and Reimer, A.}, title = {VHE gamma-rays from Westerlund 2 and implications for the inferred energetics}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-18172}, year = {2007}, abstract = {The H.E.S.S. collaboration recently reported the discovery of VHE γ-ray emission coincident with the young stellar cluster Westerlund 2. This system is known to host a population of hot, massive stars, and, most particularly, the WR binary WR 20a. Particle acceleration to TeV energies in Westerlund 2 can be accomplished in several alternative scenarios, therefore we only discuss energetic constraints based on the total available kinetic energy in the system, the actual mass loss rates of respective cluster members, and implied gamma-ray production from processes such as inverse Compton scattering or neutral pion decay. From the inferred gammaray luminosity of the order of 1035erg/s, implications for the efficiency of converting available kinetic energy into non-thermal radiation associated with stellar winds in the Westerlund 2 cluster are discussed under consideration of either the presence or absence of wind clumping.}, language = {en} } @inproceedings{PatuchovaKleinFranzkeetal.2014, author = {Patuchova, Nadezda B. and Klein, Eckart and Franzke, Jochen and B{\"u}chner, Christiane and Doroshenko, Egor N. and Hoof, Karsten and Zenin, Sergey S. and Thiele, Carmen and Schmidt, Carmen and Fadeev, Vladimir Ivanovič and Dombert, Matthias and Sadovnikova, Galina D. and Schulze, Carola and Luchterhandt, Otto and Syuzyukina, Oxana}, title = {Verfassungsentwicklung in Russland und Deutschland : Materialien des russisch-deutschen Symposiums anl{\"a}sslich des 20. Jahrestages der Verfassung der Russischen F{\"o}deration am 25. und 26. September 2013 an der Universit{\"a}t Potsdam}, editor = {Fadeev, Vladimir Ivanovič and Schulze, Carola}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, isbn = {978-3-86956-289-6}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-70418}, pages = {XI, 149}, year = {2014}, abstract = {Der Band enth{\"a}lt die Tagungsmaterialien des deutsch-russichen Symposiums zum Thema "Verfassungsentwicklung in Russland und Deutschland", welches am 25. und 26. September 2013 in Potsdam stattfand. Die Tagung wurde anl{\"a}sslich des 20. Jahrestages der russischen Verfassung vom Dezember 2013 durchgef{\"u}hrt. Die inhaltlichen Schwerpunkte bilden die Themen: Verfassungsentstehung, Verfassungs{\"a}nderung, Verfassungsprinzipien, Landesverfassungen, Fortentwicklung der Verfassung durch die Verfassungsgerichtsbarkeit und Grundrechte, die jeweils aus russischer und deutscher Sicht behandelt werden. Erg{\"a}nzend befasst sich jeweils ein Betrag mit aktuellen Problemen der Menschenrechtsverwirklichung in Russland und der Ausl{\"a}nderintegration in Deutschland und Russland im Vergleich.}, language = {de} } @inproceedings{BergmannKopp2006, author = {Bergmann, Kirsten and Kopp, Stefan}, title = {Verbal or visual? : How information is distributed across speech and gesture in spatial dialog}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10375}, year = {2006}, abstract = {In spatial dialog like in direction giving humans make frequent use of speechaccompanying gestures. Some gestures convey largely the same information as speech while others complement speech. This paper reports a study on how speakers distribute meaning across speech and gesture, and depending on what factors. Utterance meaning and the wider dialog context were tested by statistically analyzing a corpus of direction-giving dialogs. Problems of speech production (as indicated by discourse markers and disfluencies), the communicative goals, and the information status were found to be influential, while feedback signals by the addressee do not have any influence.}, language = {en} } @inproceedings{DoktorBadeckBondeauetal.2006, author = {Doktor, Daniel and Badeck, Franz-Werner and Bondeau, Alberte and Koslowsky, Dirk and Schaber, J{\"o}rg and McAllister, Murdock}, title = {Using satellite imagery and ground observations to quantify the effect of intra-annually changing temperature patterns on spring time phenology}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-7244}, year = {2006}, abstract = {Interdisziplin{\"a}res Zentrum f{\"u}r Musterdynamik und Angewandte Fernerkundung Workshop vom 9. - 10. Februar 2006}, language = {en} } @inproceedings{RomeroOwockiAraudoetal.2007, author = {Romero, G. E. and Owocki, S. P. and Araudo, A. T. and Townsend, R. H. D. and Benaglia, P.}, title = {Using gamma-rays to probe the clumped structure of stellar winds}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-18210}, year = {2007}, abstract = {Gamma-rays can be produced by the interaction of a relativistic jet and the matter of the stellar wind in the subclass of massive X-ray binaries known as "microquasars". The relativistic jet is ejected from the surroundings of the compact object and interacts with cold protons from the stellar wind, producing pions that then quickly decay into gamma-rays. Since the resulting gamma-ray emissivity depends on the target density, the detection of rapid variability in microquasars with GLAST and the new generation of Cherenkov imaging arrays could be used to probe the clumped structure of the stellar wind. In particular, we show here that the relative fluctuation in gamma rays may scale with the square root of the ratio of porosity length to binary separation, \$\sqrt{h/a}\$, implying for example a ca. 10\% variation in gamma ray emission for a quite moderate porosity, h/a ∼ 0.01.}, language = {en} } @inproceedings{DzikovskaCallawayStoneetal.2006, author = {Dzikovska, Myroslava O. and Callaway, Charles B. and Stone, Matthew and Moore, Johanna D.}, title = {Understanding student input for tutorial dialogue in procedural domains}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10193}, year = {2006}, abstract = {We present an analysis of student language input in a corpus of tutoring dialogue in the domain of symbolic differentiation. Our focus on procedural tutoring makes the dialogue comparable to collaborative problem-solving (CPS). Existing CPS models describe the process of negotiating plans and goals, which also fits procedural tutoring. However, we provide a classification of student utterances and corpus annotation which shows that approximately 28\% of non-trivial student language in this corpus is not accounted for by existing models, and addresses other functions, such as evaluating past actions or correcting mistakes. Our analysis can be used as a foundation for improving models of tutoring dialogue.}, language = {en} } @inproceedings{Pinchbeck2008, author = {Pinchbeck, Dan}, title = {Trigens can't swim : intelligence and intentionality in first person game worlds}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27609}, year = {2008}, abstract = {This paper explores the role of the intentional stance in games, arguing that any question of artificial intelligence has as much to do with the co-option of the player's interpretation of actions as intelligent as any actual fixed-state systems attached to agents. It demonstrates how simply using a few simple and, in system terms, cheap tricks, existing AI can be both supported and enhanced. This includes representational characteristics, importing behavioral expectations from real life, constraining these expectations using diegetic devices, and managing social interrelationships to create the illusion of a greater intelligence than is ever actually present. It is concluded that complex artificial intelligence is often of less importance to the experience of intelligent agents in play than the creation of a space where the intentional stance can be evoked and supported.}, language = {en} } @inproceedings{AbdennadherIsmailKhoury2010, author = {Abdennadher, Slim and Ismail, Haythem and Khoury, Frederick}, title = {Transforming imperative algorithms to constraint handling rules}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41533}, year = {2010}, abstract = {Different properties of programs, implemented in Constraint Handling Rules (CHR), have already been investigated. Proving these properties in CHR is fairly simpler than proving them in any type of imperative programming language, which triggered the proposal of a methodology to map imperative programs into equivalent CHR. The equivalence of both programs implies that if a property is satisfied for one, then it is satisfied for the other. The mapping methodology could be put to other beneficial uses. One such use is the automatic generation of global constraints, at an attempt to demonstrate the benefits of having a rule-based implementation for constraint solvers.}, language = {en} } @inproceedings{YliJyrae2008, author = {Yli-Jyr{\"a}, Anssi}, title = {Transducers from parallel replace rules and modes with generalized lenient composition}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27246}, year = {2008}, abstract = {Generalized Two-Level Grammar (GTWOL) provides a new method for compilation of parallel replacement rules into transducers. The current paper identifies the role of generalized lenient composition (GLC) in this method. Thanks to the GLC operation, the compilation method becomes bipartite and easily extendible to capture various application modes. In the light of three notions of obligatoriness, a modification to the compilation method is proposed. We argue that the bipartite design makes implementation of parallel obligatoriness, directionality, length and rank based application modes extremely easy, which is the main result of the paper.}, language = {en} } @inproceedings{NajarroPulsHerreroetal.2007, author = {Najarro, F. and Puls, Joachim and Herrero, A. and Hanson, M. M. and Mart{\´i}n-Pintado, J. and Hillier, D. J.}, title = {Tracking the Clumping in OB Stars from UV to radio}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17701}, year = {2007}, abstract = {We review different line and continua diagnostics from the UV to radio, which can be utilized to simultaneously constrain the clumping structure throughout the stellar wind of massive OB stars.}, language = {en} } @inproceedings{BynensVanLanduytTruyenetal.2010, author = {Bynens, Maarten and Van Landuyt, Dimitri and Truyen, Eddy and Joosen, Wouter}, title = {Towards reusable aspects: the callback mismatch problem}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41347}, year = {2010}, abstract = {Because software development is increasingly expensive and timeconsuming, software reuse gains importance. Aspect-oriented software development modularizes crosscutting concerns which enables their systematic reuse. Literature provides a number of AOP patterns and best practices for developing reusable aspects based on compelling examples for concerns like tracing, transactions and persistence. However, such best practices are lacking for systematically reusing invasive aspects. In this paper, we present the 'callback mismatch problem'. This problem arises in the context of abstraction mismatch, in which the aspect is required to issue a callback to the base application. As a consequence, the composition of invasive aspects is cumbersome to implement, difficult to maintain and impossible to reuse. We motivate this problem in a real-world example, show that it persists in the current state-of-the-art, and outline the need for advanced aspectual composition mechanisms to deal with this.}, language = {en} } @inproceedings{PflegerAlexandersson2006, author = {Pfleger, Norbert and Alexandersson, Jan}, title = {Towards resolving referring expressions by implicitly activated referents in practical dialogue systems}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-10187}, year = {2006}, abstract = {We present an extension to a comprehensive context model that has been successfully employed in a number of practical conversational dialogue systems. The model supports the task of multimodal fusion as well as that of reference resolution in a uniform manner. Our extension consists of integrating implicitly mentioned concepts into the context model and we show how they serve as candidates for reference resolution.}, language = {en} } @inproceedings{Liebe2008, author = {Liebe, Michael}, title = {There is no magic circle : on the difference between computer games and traditional games}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-24597}, year = {2008}, abstract = {This text compares the special characteristics of the game space in computer-generated environments with that in non-computerized playing-situations. Herewith, the concept of the magic circle as a deliberately delineated playing sphere with specific rules to be upheld by the players, is challenged. Yet, computer games also provide a virtual playing environment containing the rules of the game as well as the various action possibilities. But both the hardware and software facilitate the player's actions rather than constraining them. This makes computer games fundamentally different: in contrast to traditional game spaces or limits, the computer-generated environment does not rely on the awareness of the player in upholding these rules. - Thus, there is no magic circle.}, language = {en} } @inproceedings{Lovlie2008, author = {L{\o}vlie, Anders Sundnes}, title = {The rhetoric of persuasive games : freedom and discipline in America's Army}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-24616}, year = {2008}, abstract = {This paper suggests an approach to studying the rhetoric of persuasive computer games through comparative analysis. A comparison of the military propaganda game AMERICA'S ARMY to similar shooter games reveals an emphasis on discipline and constraints in all main aspects of the games, demonstrating a preoccupation with ethos more than pathos. Generalizing from this, a model for understanding game rhetoric through balances of freedom and constraints is proposed.}, language = {en} } @inproceedings{Bogost2008, author = {Bogost, Ian}, title = {The phenomenology of videogames}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-24547}, year = {2008}, abstract = {Jesper Juul has convincingly argued that the conflict over the proper object of study has shifted from "rules or story" to "player or game." But a key component of digital games is still missing from either of these oppositions: that of the computer itself. This paper offers a way of thinking about the phenomenology of the videogame from the perspective of the computer rather than the game or the player.}, language = {en} } @inproceedings{Glashuettner2008, author = {Glash{\"u}ttner, Robert}, title = {The perception of video games : from visual power to immersive interaction}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-24578}, year = {2008}, abstract = {This paper highlights the different ways of perceiving video games and video game content, incorporating interactive and non-interactive methods. It examines varying cognitive and emotive reactions by persons who are used to play video games as well as persons who are unfamiliar with the aesthetics and the most basic game play rules incorporated within video games. Additionally, the principle of "Flow" serves as a theoretical and philosophical foundation. A small case-study featuring two games has been made to emphasize the numerous possible ways of perception of video games.}, language = {en} } @inproceedings{Putten2013, author = {Putten, Saskia van}, title = {The meaning of the avatime additive particle tsyɛ}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-66081}, year = {2013}, abstract = {Avatime, a Kwa language of Ghana, has an additive particle tsyɛ that at first sight looks similar to additive particles such as too and also in English. However, on closer inspection, the Avatime particle behaves differently. Contrary to what is usually claimed about additive particles, tsyɛ does not only associate with focused elements. Moreover, unlike its English equivalents, tsyɛ does not come with a requirement of identity between the expressed proposition and an alternative. Instead, it indicates that the proposition it occurs in is similar to or compatible with a presupposed alternative proposition.}, language = {en} } @inproceedings{Juul2008, author = {Juul, Jesper}, title = {The magic circle and the puzzle piece}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-24554}, year = {2008}, abstract = {In a common description, to play a game is to step inside a concrete or metaphorical magic circle where special rules apply. In video game studies, this description has received an inordinate amount of criticism which the paper argues has two primary sources: 1. a misreading of the basic concept of the magic circle and 2. a somewhat rushed application of traditional theoretical concerns onto games. The paper argues that games studies must move beyond conventional criticisms of binary distinctions and rather look at the details of how games are played. Finally, the paper proposes an alternative metaphor for game-playing, the puzzle piece.}, language = {en} } @inproceedings{Liboriussen2008, author = {Liboriussen, Bjarke}, title = {The landscape aesthetics of computer games}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-24586}, year = {2008}, abstract = {Landscape aesthetics drawing on philosophy and psychology allow us to understand computer games from a new angle. The landscapes of computer games can be understood as environments or images. This difference creates two options: 1. We experience environments or images, or 2. We experience landscape simultaneously as both. Psychologically, the first option can be backed up by a Vygotskian framework (this option highlights certain non-mainstream subject positions), the second by a Piegatian (highlighting cognitive mapping of game worlds).}, language = {en} } @inproceedings{KrtičkaPulsKubat2007, author = {Krtička, Jiri and Puls, Joachim and Kub{\´a}t, Jiř{\´i}}, title = {The influence of clumping on predicted O star wind parameters}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17969}, year = {2007}, abstract = {We study the influence of clumping on the predicted wind structure of O-type stars. For this purpose we artificially include clumping into our stationary wind models. When the clumps are assumed to be optically thin, the radiative line force increases compared to corresponding unclumped models, with a similar effect on either the mass-loss rate or the terminal velocity (depending on the onset of clumping). Optically thick clumps, alternatively, might be able to decrease the radiative force.}, language = {en} } @inproceedings{Hirschi2007, author = {Hirschi, Raphael}, title = {The impact of reduced mass loss rates on the evolution of massive stars}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17616}, year = {2007}, abstract = {Mass loss is a very important aspect of the life of massive stars. After briefly reviewing its importance, we discuss the impact of the recently proposed downward revision of mass loss rates due to clumping (difficulty to form Wolf-Rayet stars and production of critically rotating stars). Although a small reduction might be allowed, large reduction factors around ten are disfavoured. We then discuss the possibility of significant mass loss at very low metallicity due to stars reaching break-up velocities and especially due to the metal enrichment of the surface of the star via rotational and convective mixing. This significant mass loss may help the first very massive stars avoid the fate of pair-creation supernova, the chemical signature of which is not observed in extremely metal poor stars. The chemical composition of the very low metallicity winds is very similar to that of the most metal poor star known to date, HE1327-2326 and offer an interesting explanation for the origin of the metals in this star. We also discuss the importance of mass loss in the context of long and soft gamma-ray bursts and pair-creation supernovae. Finally, we would like to stress that mass loss in cooler parts of the HR-diagram (luminous blue variable and yellow and red supergiant stages) are much more uncertain than in the hot part. More work needs to be done in these areas to better constrain the evolution of the most massive stars.}, language = {en} } @inproceedings{MassaPrinjaFullerton2007, author = {Massa, D. L. and Prinja, R. K. and Fullerton, A. W.}, title = {The effects of clumping on wind line variability}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-18095}, year = {2007}, abstract = {We review the effects of clumping on the profiles of resonance doublets. By allowing the ratio of the doublet oscillator strenghts to be a free parameter, we demonstrate that doublet profiles contain more information than is normally utilized. In clumped (or porous) winds, this ratio can lies between unity and the ratio of the f-values, and can change as a function of velocity and time, depending on the fraction of the stellar disk that is covered by material moving at a particular velocity at a given moment. Using these insights, we present the results of SEI modeling of a sample of B supergiants, ζ Pup and a time series for a star whose terminal velocity is low enough to make the components of its Si VIλλ1400 independent. These results are interpreted within the framewrok of the Oskinova et al. (2007) model, and demonstrate how the doublet profiles can be used to extract infromation about wind structure.}, language = {en} } @inproceedings{HoffstadtNagenborg2008, author = {Hoffstadt, Christian and Nagenborg, Michael}, title = {The concept of war in the World of Warcraft}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-24674}, year = {2008}, abstract = {MMORPGs such as WORLD OF WARCRAFT can be understood as interactive representations of war. Within the frame provided by the program the players experience martial conflicts and thus a "virtual war." The game world however requires a technical and as far as possible invisible infrastructure which has to be protected against attacks: Infrastructure means e.g. the servers on which the data of the player characters and the game's world are saved, as well as the user accounts, which have to be protected, among other things, from "identity theft." Besides the war on the virtual surface of the program we will therefore describe the invisible war concerning the infrastructure, the outbreak of which is always feared by the developers and operators of online-worlds, requiring them to take precautions. Furthermore we would like to focus on "virtual game worlds" as places of complete surveillance. Since action in these worlds is always associated with the production of data, total observation is theoretically possible and put into practice by the so-called "game master." The observation of different communication channels (including user forums) serves to monitor and direct the actions on the virtual battlefield subtly, without the player feeling that his freedom is being limited. Finally, we will compare the fictional theater of war in WORLD OF WARCRAFT to the vision of "Network-Centric Warfare," since it has often been observed that the analysis of MMORPGs is useful to the real trade of war. However, we point out what an unrealistic theater of war WORLD OF WARCRAFT really is.}, language = {en} } @inproceedings{OPUS4-1412, title = {The 3rd international IEEE scientific conference on physics and control (PhysCon 2007) : September 3rd-7th 2007 at the University of Potsdam}, editor = {Kurths, J{\"u}rgen and Fradkov, Alexander and Chen, Guanrong}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-15228}, pages = {345}, year = {2007}, abstract = {During the last few years there was a tremendous growth of scientific activities in the fields related to both Physics and Control theory: nonlinear dynamics, micro- and nanotechnologies, self-organization and complexity, etc. New horizons were opened and new exciting applications emerged. Experts with different backgrounds starting to work together need more opportunities for information exchange to improve mutual understanding and cooperation. The Conference "Physics and Control 2007" is the third international conference focusing on the borderland between Physics and Control with emphasis on both theory and applications. With its 2007 address at Potsdam, Germany, the conference is located for the first time outside of Russia. The major goal of the Conference is to bring together researchers from different scientific communities and to gain some general and unified perspectives in the studies of controlled systems in physics, engineering, chemistry, biology and other natural sciences. We hope that the Conference helps experts in control theory to get acquainted with new interesting problems, and helps experts in physics and related fields to know more about ideas and tools from the modern control theory.}, language = {en} } @inproceedings{Fernando2008, author = {Fernando, Tim}, title = {Temporal propositions as regular languages}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27194}, year = {2008}, abstract = {Temporal propositions are mapped to sets of strings that witness (in a precise sense) the propositions over discrete linear Kripke frames. The strings are collected into regular languages to ensure the decidability of entailments given by inclusions between languages. (Various notions of bounded entailment are shown to be expressible as language inclusions.) The languages unwind computations implicit in the logical (and temporal) connectives via a system of finite-state constraints adapted from finite-state morphology. Applications to Hybrid Logic and non-monotonic inertial reasoning are briefly considered.}, language = {en} } @inproceedings{Townsend2007, author = {Townsend, R. H. D.}, title = {Techniques for simulating radiative transfer through porous media}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17866}, year = {2007}, abstract = {In this contribution, I discuss some basic techniques that can be used to simulate radiative transfer through porous media. As specific examples, I consider scattering transfer through a clumped slab, and X-ray emission line formation in a clumped wind.}, language = {en} } @inproceedings{IlarrazaGojenolaOronozetal.2008, author = {Ilarraza, Arantza D{\´i}az de and Gojenola, Koldo and Oronoz, Maite and Otaegi, Maialen and Alegria, I{\~n}aki}, title = {Syntactic error detection and correction in date expressions using finite-state transducers}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27180}, year = {2008}, abstract = {This paper presents a system for the detection and correction of syntactic errors. It combines a robust morphosyntactic analyser and two groups of finite-state transducers specified using the Xerox Finite State Tool (xfst). One of the groups is used for the description of syntactic error patterns while the second one is used for the correction of the detected errors. The system has been tested on a corpus of real texts, containing both correct and incorrect sentences, with good results.}, language = {en} } @inproceedings{Didakowski2008, author = {Didakowski, J{\"o}rg}, title = {SynCoP : combining syntactic tagging with chunking using weighted finite state transducers}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27172}, year = {2008}, abstract = {This paper describes the key aspects of the system SynCoP (Syntactic Constraint Parser) developed at the Berlin-Brandenburgische Akademie der Wissenschaften. The parser allows to combine syntactic tagging and chunking by means of constraint grammar using weighted finite state transducers (WFST). Chunks are interpreted as local dependency structures within syntactic tagging. The linguistic theories are formulated by criteria which are formalized by a semiring; these criteria allow structural preferences and gradual grammaticality. The parser is essentially a cascade of WFSTs. To find the most likely syntactic readings a best-path search is used.}, language = {en} } @inproceedings{PrinjaHodgesMassaetal.2007, author = {Prinja, R. K. and Hodges, S. E. and Massa, D. L. and Fullerton, A. W. and Burnley, A. W.}, title = {Structure in the fast wind of NGC6543}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17788}, year = {2007}, abstract = {We exploit time-series \$FUSE\$ spectroscopy to {\it uniquely} probe spatial structure and clumping in the fast wind of the central star of the H-rich planetary nebula NGC~6543 (HD~164963). Episodic and recurrent optical depth enhancements are discovered in the P{\sc v} absorption troughs, with some evidence for a \$\sim\$ 0.17-day modulation time-scale. The characteristics of these features are essentially identical to the discrete absorption components' (DACs) commonly seen in the UV lines of massive OB stars, suggesting the temporal structures seen in NGC~6543 likely have a physical origin that is similar to that operating in massive, luminous stars. The mechanism for forming coherent perturbations in the outflows is therefore apparently operating equally in the radiation-pressure-driven winds of widely differing momenta (\$\mdot\$\$v_\infty\$\$R_\star^{0.5}\$) and flow times, as represented by OB stars and CSPN.}, language = {en} } @inproceedings{HerreHummel2010, author = {Herre, Heinrich and Hummel, Axel}, title = {Stationary generated models of generalized logic programs}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41501}, year = {2010}, abstract = {The interest in extensions of the logic programming paradigm beyond the class of normal logic programs is motivated by the need of an adequate representation and processing of knowledge. One of the most difficult problems in this area is to find an adequate declarative semantics for logic programs. In the present paper a general preference criterion is proposed that selects the 'intended' partial models of generalized logic programs which is a conservative extension of the stationary semantics for normal logic programs of [Prz91]. The presented preference criterion defines a partial model of a generalized logic program as intended if it is generated by a stationary chain. It turns out that the stationary generated models coincide with the stationary models on the class of normal logic programs. The general wellfounded semantics of such a program is defined as the set-theoretical intersection of its stationary generated models. For normal logic programs the general wellfounded semantics equals the wellfounded semantics.}, language = {en} } @inproceedings{OPUS4-2594, title = {Spotkanie mlodych polonist{\´o}w : zbi{\´o}r prac wygloszonych na pierwszej konferencji niemiecko-polskiej student{\´o}w plonistyki w Opoly 03.-04.10.2003 r = Beitr{\"a}ge zum ersten deutsch-polnischen studentischen Polonistentreffen in Oppeln (Opole) vom 03.-04.10.2003}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, organization = {Universit{\"a}t Potsdam / Fachschaftsrat Slavistik (Hrsg.)}, isbn = {978-3-935024-95-2}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-27694}, pages = {81}, year = {2003}, abstract = {Vom 03. - 04.10.2003 fand in Oppeln (Opole, Polen) zum ersten Mal eine Konferenz von Polonistik-Studenten aus Deutschland und Polen in polnischer Sprache statt. Die in diesem Band gesammelten Beitr{\"a}ge der Konferenz spiegeln den Stand studentischer Arbeiten auf dem Gebiet der Polonistik wider. Dabei sind v.a. Beitr{\"a}ge aus der Sprachwissenschaft zur polnischen Sprache der Gegenwart, aber auch der Literaturwissenschaft und den deutsch-polnischen Beziehungen enthalten. Schwerpunkt der Konferenz waren interkulturelle Interaktionen.}, subject = {Polonist}, language = {de} } @inproceedings{HamannOskinovaFeldmeier2007, author = {Hamann, Wolf-Rainer and Oskinova, Lida and Feldmeier, Achim}, title = {Spectrum formation in clumpy stellar winds}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-17838}, year = {2007}, abstract = {Modeling expanding atmospheres is a difficult task because of the extreme non-LTE situation, the need to account for complex model atoms, especially for the iron-group elements with their millions of lines, and because of the supersonic expansion. Adequate codes have been developed e.g. by Hillier (CMFGEN), the Munich group (Puls, Pauldrach), and in Potsdam (PoWR code, Hamann et al.). While early work was based on the assumption of a smooth and homogeneous spherical stellar wind, the need to account for clumping became obvious about ten years ago. A relatively simple first-order clumping correction was readily implemented into the model codes. However, its simplifying assumptions are severe. Most importantly, the clumps are taken to be optically thin at all frequencies ("microclumping"). We discuss the consequences of this approximation and describe an approach to account for optically thick clumps ("macroclumping"). First results demonstrate that macroclumping can generally reduce the strength of spectral features, depending on their optical thickness. The recently reported discrepancy between the Hα diagnostic and the Pv resonance lines in O star spectra can be resolved without decreasing the mass-loss rates, when macroclumping is taken into account.}, language = {en} } @inproceedings{HainzlScherbaumZoeller2006, author = {Hainzl, Sebastian and Scherbaum, Frank and Z{\"o}ller, Gert}, title = {Spatiotemporal earthquake patterns}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-7267}, year = {2006}, abstract = {Interdisziplin{\"a}res Zentrum f{\"u}r Musterdynamik und Angewandte Fernerkundung Workshop vom 9. - 10. Februar 2006}, language = {en} }