TY - GEN A1 - Sianipar, Johannes Harungguan A1 - Willems, Christian A1 - Meinel, Christoph T1 - Virtual machine integrity verification in Crowd-Resourcing Virtual Laboratory T2 - 2018 IEEE 11th Conference on Service-Oriented Computing and Applications (SOCA) N2 - In cloud computing, users are able to use their own operating system (OS) image to run a virtual machine (VM) on a remote host. The virtual machine OS is started by the user using some interfaces provided by a cloud provider in public or private cloud. In peer to peer cloud, the VM is started by the host admin. After the VM is running, the user could get a remote access to the VM to install, configure, and run services. For the security reasons, the user needs to verify the integrity of the running VM, because a malicious host admin could modify the image or even replace the image with a similar image, to be able to get sensitive data from the VM. We propose an approach to verify the integrity of a running VM on a remote host, without using any specific hardware such as Trusted Platform Module (TPM). Our approach is implemented on a Linux platform where the kernel files (vmlinuz and initrd) could be replaced with new files, while the VM is running. kexec is used to reboot the VM with the new kernel files. The new kernel has secret codes that will be used to verify whether the VM was started using the new kernel files. The new kernel is used to further measuring the integrity of the running VM. KW - Virtual Machine KW - Integrity Verification KW - Crowd-Resourcing KW - Cloud Computing Y1 - 2019 SN - 978-1-5386-9133-5 U6 - https://doi.org/10.1109/SOCA.2018.00032 SN - 2163-2871 SP - 169 EP - 176 PB - IEEE CY - New York ER - TY - GEN A1 - Sianipar, Johannes Harungguan A1 - Sukmana, Muhammad Ihsan Haikal A1 - Meinel, Christoph T1 - Moving sensitive data against live memory dumping, spectre and meltdown attacks T2 - 26th International Conference on Systems Engineering (ICSEng) N2 - The emergence of cloud computing allows users to easily host their Virtual Machines with no up-front investment and the guarantee of always available anytime anywhere. But with the Virtual Machine (VM) is hosted outside of user's premise, the user loses the physical control of the VM as it could be running on untrusted host machines in the cloud. Malicious host administrator could launch live memory dumping, Spectre, or Meltdown attacks in order to extract sensitive information from the VM's memory, e.g. passwords or cryptographic keys of applications running in the VM. In this paper, inspired by the moving target defense (MTD) scheme, we propose a novel approach to increase the security of application's sensitive data in the VM by continuously moving the sensitive data among several memory allocations (blocks) in Random Access Memory (RAM). A movement function is added into the application source code in order for the function to be running concurrently with the application's main function. Our approach could reduce the possibility of VM's sensitive data in the memory to be leaked into memory dump file by 2 5% and secure the sensitive data from Spectre and Meltdown attacks. Our approach's overhead depends on the number and the size of the sensitive data. KW - Virtual Machine KW - Memory Dumping KW - Security KW - Cloud Computing KW - Spectre KW - Meltdown Y1 - 2019 SN - 978-1-5386-7834-3 PB - IEEE CY - New York ER - TY - GEN A1 - Shaki, Samuel A1 - Fischer, Martin H. T1 - Commentary on: E. H. Toomarian ; E. M. Hubbard, On the genesis of spatial-numerical associations: Evolutionary and cultural factors co-construct the mental number line. - (Neuroscience & Biobehavioral Reviews. - vol 95, 2018, pg 189 - 190) T2 - Neuroscience & biobehavioral reviews : official journal of the International Behavioral Neuroscience Society Y1 - 2019 U6 - https://doi.org/10.1016/j.neubiorev.2018.12.018 SN - 0149-7634 SN - 1873-7528 VL - 98 SP - 335 EP - 335 PB - Elsevier CY - Oxford ER - TY - GEN A1 - Seidel, Felix A1 - Krentz, Konrad-Felix A1 - Meinel, Christoph T1 - Deep En-Route Filtering of Constrained Application Protocol (CoAP) Messages on 6LoWPAN Border Routers T2 - 2019 IEEE 5th World Forum on Internet of Things (WF-IoT) N2 - Devices on the Internet of Things (IoT) are usually battery-powered and have limited resources. Hence, energy-efficient and lightweight protocols were designed for IoT devices, such as the popular Constrained Application Protocol (CoAP). Yet, CoAP itself does not include any defenses against denial-of-sleep attacks, which are attacks that aim at depriving victim devices of entering low-power sleep modes. For example, a denial-of-sleep attack against an IoT device that runs a CoAP server is to send plenty of CoAP messages to it, thereby forcing the IoT device to expend energy for receiving and processing these CoAP messages. All current security solutions for CoAP, namely Datagram Transport Layer Security (DTLS), IPsec, and OSCORE, fail to prevent such attacks. To fill this gap, Seitz et al. proposed a method for filtering out inauthentic and replayed CoAP messages "en-route" on 6LoWPAN border routers. In this paper, we expand on Seitz et al.'s proposal in two ways. First, we revise Seitz et al.'s software architecture so that 6LoWPAN border routers can not only check the authenticity and freshness of CoAP messages, but can also perform a wide range of further checks. Second, we propose a couple of such further checks, which, as compared to Seitz et al.'s original checks, more reliably protect IoT devices that run CoAP servers from remote denial-of-sleep attacks, as well as from remote exploits. We prototyped our solution and successfully tested its compatibility with Contiki-NG's CoAP implementation. Y1 - 2019 SN - 978-1-5386-4980-0 SN - 978-1-5386-4981-7 U6 - https://doi.org/10.1109/WF-IoT.2019.8767262 SP - 201 EP - 206 PB - Institute of Electrical and Electronics Engineers CY - New York ER - TY - GEN A1 - Schütt, Heiko Herbert A1 - Rothkegel, Lars Oliver Martin A1 - Trukenbrod, Hans Arne A1 - Engbert, Ralf A1 - Wichmann, Felix A. T1 - Predicting fixation densities over time from early visual processing T2 - Perception N2 - Bottom-up saliency is often cited as a factor driving the choice of fixation locations of human observers, based on the (partial) success of saliency models to predict fixation densities in free viewing. However, these observations are only weak evidence for a causal role of bottom-up saliency in natural viewing behaviour. To test bottom-up saliency more directly, we analyse the performance of a number of saliency models---including our own saliency model based on our recently published model of early visual processing (Schütt & Wichmann, 2017, JoV)---as well as the theoretical limits for predictions over time. On free viewing data our model performs better than classical bottom-up saliency models, but worse than the current deep learning based saliency models incorporating higher-level information like knowledge about objects. However, on search data all saliency models perform worse than the optimal image independent prediction. We observe that the fixation density in free viewing is not stationary over time, but changes over the course of a trial. It starts with a pronounced central fixation bias on the first chosen fixation, which is nonetheless influenced by image content. Starting with the 2nd to 3rd fixation, the fixation density is already well predicted by later densities, but more concentrated. From there the fixation distribution broadens until it reaches a stationary distribution around the 10th fixation. Taken together these observations argue against bottom-up saliency as a mechanistic explanation for eye movement control after the initial orienting reaction in the first one to two saccades, although we confirm the predictive value of early visual representations for fixation locations. The fixation distribution is, first, not well described by any stationary density, second, is predicted better when including object information and, third, is badly predicted by any saliency model in a search task. Y1 - 2019 SN - 0301-0066 SN - 1468-4233 VL - 48 SP - 64 EP - 65 PB - Sage Publ. CY - London ER - TY - GEN A1 - Schwetlick, Lisa A1 - Trukenbrod, Hans Arne A1 - Engbert, Ralf T1 - The Influence of Visual Long Term Memory on Eye Movements During Scene Viewing T2 - Perception Y1 - 2019 SN - 0301-0066 SN - 1468-4233 VL - 48 IS - S1 SP - 138 EP - 138 PB - Sage Publ. CY - London ER - TY - GEN A1 - Schorsch, Jonathan T1 - Olive Oil, Anointing, Ecstasy, and Ecology T2 - Ritual Dynamics in Jewish and Christian Contexts : Between Bible and Liturgy Y1 - 2019 SN - 978-90-04-40595-0 SN - 978-90-04-40092-4 U6 - https://doi.org/10.1163/9789004405950_012 SN - 1388-2074 VL - 34 SP - 215 EP - 236 PB - Brill CY - Leiden ER - TY - GEN A1 - Schlosser, Rainer A1 - Kossmann, Jan A1 - Boissier, Martin T1 - Efficient Scalable Multi-Attribute Index Selection Using Recursive Strategies T2 - 2019 IEEE 35th International Conference on Data Engineering (ICDE) N2 - An efficient selection of indexes is indispensable for database performance. For large problem instances with hundreds of tables, existing approaches are not suitable: They either exhibit prohibitive runtimes or yield far from optimal index configurations by strongly limiting the set of index candidates or not handling index interaction explicitly. We introduce a novel recursive strategy that does not exclude index candidates in advance and effectively accounts for index interaction. Using large real-world workloads, we demonstrate the applicability of our approach. Further, we evaluate our solution end to end with a commercial database system using a reproducible setup. We show that our solutions are near-optimal for small index selection problems. For larger problems, our strategy outperforms state-of-the-art approaches in both scalability and solution quality. Y1 - 2019 SN - 978-1-5386-7474-1 U6 - https://doi.org/10.1109/ICDE.2019.00113 SN - 1084-4627 SP - 1238 EP - 1249 PB - IEEE CY - New York ER - TY - GEN A1 - Salzwedel, Annett A1 - Völler, Heinz A1 - Reibis, Rona Katharina T1 - Vocational reintegration in coronary heart disease patients - the holistic approach of the WHO biopsychosocial concept T2 - European journal of preventive cardiology : the official ESC journal for primary & secondary cardiovascular prevention, rehabilitation and sports cardiology Y1 - 2019 U6 - https://doi.org/10.1177/2047487319850699 SN - 2047-4873 SN - 2047-4881 VL - 26 IS - 13 SP - 1383 EP - 1385 PB - Sage Publ. CY - London ER - TY - GEN A1 - Röder, Katrin A1 - Vogt-William, Christine T1 - Shame and shamelessness in Anglophone literature and media T2 - European journal of English studies : official journal of the European Society for the Study of English (ESSE) Y1 - 2019 U6 - https://doi.org/10.1080/13825577.2019.1655242 SN - 1382-5577 SN - 1744-4233 VL - 23 IS - 3 SP - 239 EP - 248 PB - Routledge, Taylor & Francis Group CY - Abingdon ER - TY - GEN A1 - Rounsevell, Mark D. A. A1 - Metzger, Marc J. A1 - Walz, Ariane T1 - Operationalising ecosystem services in Europe T2 - Regional environmental change Y1 - 2019 U6 - https://doi.org/10.1007/s10113-019-01560-1 SN - 1436-3798 SN - 1436-378X VL - 19 IS - 8 SP - 2143 EP - 2149 PB - Springer CY - Heidelberg ER - TY - GEN A1 - Roumen, Thijs A1 - Shigeyama, Jotaro A1 - Rudolph, Julius Cosmo Romeo A1 - Grzelka, Felix A1 - Baudisch, Patrick T1 - SpringFit BT - Joints and mounts that fabricate on any laser cutter T2 - User Interface Software and Technology N2 - Joints are crucial to laser cutting as they allow making three-dimensional objects; mounts are crucial because they allow embedding technical components, such as motors. Unfortunately, mounts and joints tend to fail when trying to fabricate a model on a different laser cutter or from a different material. The reason for this lies in the way mounts and joints hold objects in place, which is by forcing them into slightly smaller openings. Such "press fit" mechanisms unfortunately are susceptible to the small changes in diameter that occur when switching to a machine that removes more or less material ("kerf"), as well as to changes in stiffness, as they occur when switching to a different material. We present a software tool called springFit that resolves this problem by replacing the problematic press fit-based mounts and joints with what we call cantilever-based mounts and joints. A cantilever spring is simply a long thin piece of material that pushes against the object to be held. Unlike press fits, cantilever springs are robust against variations in kerf and material; they can even handle very high variations, simply by using longer springs. SpringFit converts models in the form of 2D cutting plans by replacing all contained mounts, notch joints, finger joints, and t-joints. In our technical evaluation, we used springFit to convert 14 models downloaded from the web. KW - Laser cutting KW - fabrication KW - portability KW - reuse Y1 - 2019 SN - 978-1-4503-6816-2 U6 - https://doi.org/10.1145/3332165.3347930 SP - 727 EP - 738 PB - Association for Computing Machinery CY - New York ER - TY - GEN A1 - Rodriguez-Sillke, Yasmina A1 - Steinhoff, U. A1 - Bojarski, Christian A1 - Lissner, Donata A1 - Schumann, Michael A1 - Branchi, F. A1 - Siegmund, Britta A1 - Glauben, Rainer T1 - Deep immune profiling of human Peyer´s Patches in patients of inflammatory bowel diseases T2 - European journal of immunology Y1 - 2019 U6 - https://doi.org/10.1002/eji.201970300 SN - 0014-2980 SN - 1521-4141 VL - 49 SP - 203 EP - 204 PB - Wiley CY - Weinheim ER - TY - GEN A1 - Richly, Keven T1 - A survey on trajectory data management for hybrid transactional and analytical workloads T2 - IEEE International Conference on Big Data (Big Data) N2 - Rapid advances in location-acquisition technologies have led to large amounts of trajectory data. This data is the foundation for a broad spectrum of services driven and improved by trajectory data mining. However, for hybrid transactional and analytical workloads, the storing and processing of rapidly accumulated trajectory data is a non-trivial task. In this paper, we present a detailed survey about state-of-the-art trajectory data management systems. To determine the relevant aspects and requirements for such systems, we developed a trajectory data mining framework, which summarizes the different steps in the trajectory data mining process. Based on the derived requirements, we analyze different concepts to store, compress, index, and process spatio-temporal data. There are various trajectory management systems, which are optimized for scalability, data footprint reduction, elasticity, or query performance. To get a comprehensive overview, we describe and compare different exciting systems. Additionally, the observed similarities in the general structure of different systems are consolidated in a general blueprint of trajectory management systems. KW - Trajectory Data Management KW - Spatio-Temporal Data KW - Survey Y1 - 2019 SN - 978-1-5386-5035-6 U6 - https://doi.org/10.1109/BigData.2018.8622394 SN - 2639-1589 SP - 562 EP - 569 PB - IEEE CY - New York ER - TY - GEN A1 - Richly, Keven T1 - Leveraging spatio-temporal soccer data to define a graphical query language for game recordings T2 - IEEE International Conference on Big Data (Big Data) N2 - For professional soccer clubs, performance and video analysis are an integral part of the preparation and post-processing of games. Coaches, scouts, and video analysts extract information about strengths and weaknesses of their team as well as opponents by manually analyzing video recordings of past games. Since video recordings are an unstructured data source, it is a complex and time-intensive task to find specific game situations and identify similar patterns. In this paper, we present a novel approach to detect patterns and situations (e.g., playmaking and ball passing of midfielders) based on trajectory data. The application uses the metaphor of a tactic board to offer a graphical query language. With this interactive tactic board, the user can model a game situation or mark a specific situation in the video recording for which all matching occurrences in various games are immediately displayed, and the user can directly jump to the corresponding game scene. Through the additional visualization of key performance indicators (e.g.,the physical load of the players), the user can get a better overall assessment of situations. With the capabilities to find specific game situations and complex patterns in video recordings, the interactive tactic board serves as a useful tool to improve the video analysis process of professional sports teams. KW - Spatio-temporal data analysis KW - soccer analytics KW - graphical query language Y1 - 2019 SN - 978-1-5386-5035-6 U6 - https://doi.org/10.1109/BigData.2018.8622159 SN - 2639-1589 SP - 3456 EP - 3463 PB - IEEE CY - New York ER - TY - GEN A1 - Renz, Jan A1 - Meinel, Christoph T1 - The "Bachelor Project" BT - Project Based Computer Science Education T2 - 2019 IEEE Global Engineering Education Conference (EDUCON) N2 - One of the challenges of educating the next generation of computer scientists is to teach them to become team players, that are able to communicate and interact not only with different IT systems, but also with coworkers and customers with a non-it background. The “bachelor project” is a project based on team work and a close collaboration with selected industry partners. The authors hosted some of the teams since spring term 2014/15. In the paper at hand we explain and discuss this concept and evaluate its success based on students' evaluation and reports. Furthermore, the technology-stack that has been used by the teams is evaluated to understand how self-organized students in IT-related projects work. We will show that and why the bachelor is the most successful educational format in the perception of the students and how this positive results can be improved by the mentors. KW - computer science education KW - project based learning KW - bachelor project Y1 - 2019 SN - 978-1-5386-9506-7 U6 - https://doi.org/10.1109/EDUCON.2019.8725140 SN - 2165-9567 SP - 580 EP - 587 PB - IEEE CY - New York ER - TY - GEN A1 - Rastogi, Abhishake T1 - Tikhonov regularization with oversmoothing penalty for linear statistical inverse learning problems T2 - AIP Conference Proceedings : third international Conference of mathematical sciences (ICMS 2019) N2 - In this paper, we consider the linear ill-posed inverse problem with noisy data in the statistical learning setting. The Tikhonov regularization scheme in Hilbert scales is considered in the reproducing kernel Hilbert space framework to reconstruct the estimator from the random noisy data. We discuss the rates of convergence for the regularized solution under the prior assumptions and link condition. For regression functions with smoothness given in terms of source conditions the error bound can explicitly be established. KW - Statistical inverse problem KW - Tikhonov regularization KW - Hilbert Scales KW - Reproducing kernel Hilbert space KW - Minimax convergence rates Y1 - 2019 SN - 978-0-7354-1930-8 U6 - https://doi.org/10.1063/1.5136221 SN - 0094-243X VL - 2183 PB - American Institute of Physics CY - Melville ER - TY - GEN A1 - Radchuk, Viktoriia A1 - Kramer-Schadt, Stephanie A1 - Grimm, Volker T1 - Transferability of mechanistic ecological models is about emergence T2 - Trends in ecology and evolution Y1 - 2019 U6 - https://doi.org/10.1016/j.tree.2019.01.010 SN - 0169-5347 SN - 1872-8383 VL - 34 IS - 6 SP - 487 EP - 488 PB - Elsevier CY - London ER - TY - GEN A1 - Pérez Chaparro, Camilo Germán Alberto A1 - Mayer, Frank A1 - Beckendorf, Claudia T1 - Cardiovascular drift response over two different constant-load exercises in healthy non-athletes BT - case study T2 - Medicine and science in sports and exercise : official journal of the American College of Sports Medicine N2 - Cardiovascular drift (CV-d) is a steady increase in heart rate (HR) over time while performing constant load moderate intensity exercise (CME) > 20 min. CV-d presents problems for the prescription of exercise intensity by means of HR, because the work rate (WR) during exercise must be adjusted to maintain target HR, thus disturbing the intended effect of the exercise intervention. It has been shown that the increase in HR during CME is due to changes in WR and not to CV-d. Y1 - 2019 U6 - https://doi.org/10.1249/01.mss.0000561495.15163.50 SN - 0195-9131 SN - 1530-0315 VL - 51 IS - 6 SP - 329 EP - 329 PB - Lippincott Williams & Wilkins CY - Philadelphia ER - TY - GEN A1 - Przybylla, Mareen T1 - Interactive objects in physical computing and their role in the learning process T2 - Constructivist foundations N2 - The target article discusses the question of how educational makerspaces can become places supportive of knowledge construction. This question is too often neglected by people who run makerspaces, as they mostly explain how to use different tools and focus on the creation of a product. In makerspaces, often pupils also engage in physical computing activities and thus in the creation of interactive artifacts containing embedded systems, such as smart shoes or wristbands, plant monitoring systems or drink mixing machines. This offers the opportunity to reflect on teaching physical computing in computer science education, where similarly often the creation of the product is so strongly focused upon that the reflection of the learning process is pushed into the background. Y1 - 2019 SN - 1782-348X VL - 14 IS - 3 SP - 264 EP - 266 PB - Vrije Univ. CY - Bussels ER - TY - GEN A1 - Ponce, Carol Barahona A1 - Scherer, Dominique A1 - Boekstegers, Felix A1 - Garate-Calderon, Valentina A1 - Jenab, Mazda A1 - Aleksandrova, Krasimira A1 - Katzke, Verena A1 - Weiderpass, Elisabete A1 - Bonet, Catalina A1 - Moradi, Tahereh A1 - Fischer, Krista A1 - Bossers, Willem A1 - Brenner, Hermann A1 - Schöttker, Ben A1 - Holleczek, Bernd A1 - Hveem, Kristian A1 - Eklund, Niina A1 - Voelker, Uwe A1 - Waldenberger, Melanie A1 - Bermejo, Justo Lorenzo T1 - Arsenic and gallbladder cancer risk BT - Mendelian randomization analysis of European prospective data T2 - International journal of cancer KW - arsenic KW - gallbladder cancer KW - Mendelian randomization Y1 - 2019 U6 - https://doi.org/10.1002/ijc.32837 SN - 0020-7136 SN - 1097-0215 VL - 146 IS - 9 SP - 2648 EP - 2650 PB - Wiley CY - Hoboken ER - TY - GEN A1 - Podlesny, Nikolai Jannik A1 - Kayem, Anne V. D. M. A1 - Meinel, Christoph T1 - Attribute Compartmentation and Greedy UCC Discovery for High-Dimensional Data Anonymisation T2 - Proceedings of the Ninth ACM Conference on Data and Application Security and Privacy N2 - High-dimensional data is particularly useful for data analytics research. In the healthcare domain, for instance, high-dimensional data analytics has been used successfully for drug discovery. Yet, in order to adhere to privacy legislation, data analytics service providers must guarantee anonymity for data owners. In the context of high-dimensional data, ensuring privacy is challenging because increased data dimensionality must be matched by an exponential growth in the size of the data to avoid sparse datasets. Syntactically, anonymising sparse datasets with methods that rely of statistical significance, makes obtaining sound and reliable results, a challenge. As such, strong privacy is only achievable at the cost of high information loss, rendering the data unusable for data analytics. In this paper, we make two contributions to addressing this problem from both the privacy and information loss perspectives. First, we show that by identifying dependencies between attribute subsets we can eliminate privacy violating attributes from the anonymised dataset. Second, to minimise information loss, we employ a greedy search algorithm to determine and eliminate maximal partial unique attribute combinations. Thus, one only needs to find the minimal set of identifying attributes to prevent re-identification. Experiments on a health cloud based on the SAP HANA platform using a semi-synthetic medical history dataset comprised of 109 attributes, demonstrate the effectiveness of our approach. Y1 - 2019 SN - 978-1-4503-6099-9 U6 - https://doi.org/10.1145/3292006.3300019 SP - 109 EP - 119 PB - Association for Computing Machinery CY - New York ER - TY - GEN A1 - Plank, Roswitha A1 - Yealland, Guy A1 - Miceli, Enrico A1 - Cunha, Dulce Lima A1 - Graff, Patrick A1 - Thomforde, Sari A1 - Gruber, Robert A1 - Moosbrugger-Martinz, Verena A1 - Eckl, Katja A1 - Calderon, Marcelo A1 - Hennies, Hans Christian A1 - Hedtrich, Sarah T1 - Transglutaminase 1 Replacement Therapy Successfully Mitigates the Autosomal Recessive Congenital Ichthyosis Phenotype in Full-Thickness Skin Disease Equivalents T2 - The journal of investigative dermatology Y1 - 2019 U6 - https://doi.org/10.1016/j.jid.2018.11.002 SN - 0022-202X SN - 1523-1747 VL - 139 IS - 5 SP - 1191 EP - 1195 PB - Elsevier CY - New York ER - TY - GEN A1 - Petruk, Oleh A1 - Kuzyo, T. A1 - Orlando, S. A1 - Pohl, Martin A1 - Miceli, M. A1 - Bocchino, F. A1 - Beshley, V. A1 - Brose, Robert T1 - Erratum: Post-adiabatic supernova remnants in an interstellar magnetic field: oblique shocks and non-uniform environment. - (Monthly notices of the Royal Astronomical Society. - 479, (2018), pg. 4253 - 4270) T2 - Monthly notices of the Royal Astronomical Society N2 - This is a correction notice for ‘Post-adiabatic supernova remnants in an interstellar magnetic field: oblique shocks and non-uniform environment’ (DOI: https://doi.org/10.1093/mnras/sty1750), which was published in MNRAS 479, 4253–4270 (2018). The publisher regrets to inform that the colour was missing from the colour scales in Figs 8(a)–(d) and Figs 9(a) and (b). This has now been corrected online. The publisher apologizes for this error. KW - errata KW - addenda KW - shock waves KW - ISM: magnetic fields KW - ISM: supernova remnants Y1 - 2018 U6 - https://doi.org/10.1093/mnras/sty2861 SN - 0035-8711 SN - 1365-2966 VL - 482 IS - 2 SP - 1979 EP - 1980 PB - Oxford Univ. Press CY - Oxford ER - TY - GEN A1 - Perscheid, Cindy A1 - Uflacker, Matthias T1 - Integrating Biological Context into the Analysis of Gene Expression Data T2 - Distributed Computing and Artificial Intelligence, Special Sessions, 15th International Conference N2 - High-throughput RNA sequencing produces large gene expression datasets whose analysis leads to a better understanding of diseases like cancer. The nature of RNA-Seq data poses challenges to its analysis in terms of its high dimensionality, noise, and complexity of the underlying biological processes. Researchers apply traditional machine learning approaches, e. g. hierarchical clustering, to analyze this data. Until it comes to validation of the results, the analysis is based on the provided data only and completely misses the biological context. However, gene expression data follows particular patterns - the underlying biological processes. In our research, we aim to integrate the available biological knowledge earlier in the analysis process. We want to adapt state-of-the-art data mining algorithms to consider the biological context in their computations and deliver meaningful results for researchers. KW - Gene expression KW - Machine learning KW - Feature selection KW - Association rule mining KW - Biclustering KW - Knowledge bases Y1 - 2019 SN - 978-3-319-99608-0 SN - 978-3-319-99607-3 U6 - https://doi.org/10.1007/978-3-319-99608-0_41 SN - 2194-5357 SN - 2194-5365 VL - 801 SP - 339 EP - 343 PB - Springer CY - Cham ER - TY - GEN A1 - Ofner, Andre A1 - Stober, Sebastian T1 - Hybrid variational predictive coding as a bridge between human and artificial cognition T2 - ALIFE 2019: The 2019 Conference on Artificial Life N2 - Predictive coding and its generalization to active inference offer a unified theory of brain function. The underlying predictive processing paradigmhas gained significant attention in artificial intelligence research for its representation learning and predictive capacity. Here, we suggest that it is possible to integrate human and artificial generative models with a predictive coding network that processes sensations simultaneously with the signature of predictive coding found in human neuroimaging data. We propose a recurrent hierarchical predictive coding model that predicts low-dimensional representations of stimuli, electroencephalogram and physiological signals with variational inference. We suggest that in a shared environment, such hybrid predictive coding networks learn to incorporate the human predictive model in order to reduce prediction error. We evaluate the model on a publicly available EEG dataset of subjects watching one-minute long video excerpts. Our initial results indicate that the model can be trained to predict visual properties such as the amount, distance and motion of human subjects in videos. Y1 - 2019 SP - 68 EP - 69 PB - MIT Press CY - Cambridge ER - TY - GEN A1 - Numberger, Daniela A1 - Dreier, Carola A1 - Vullioud, Colin A1 - Gabriel, Guelsah A1 - Greenwood, Alex D. A1 - Grossart, Hans-Peter T1 - Correction: Recovery of influenza A viruses from lake water and sediments by experimental inoculation (vol 14, e0216880, 2019) T2 - PLoS one Y1 - 2019 U6 - https://doi.org/10.1371/journal.pone.0218882 SN - 1932-6203 VL - 14 IS - 6 PB - PLoS CY - San Fransisco ER - TY - GEN A1 - Nitze, Ingmar A1 - Grosse, Guido A1 - Jones, B. M. A1 - Romanovsky, Vladimir E. A1 - Boike, Julia T1 - Author Correction: Nitze, I; Grosse, G; Jones, B.M.; Romanovsky, V.E.; Boike, J.: Remote sensing quantifies widespread abundance of permafrost region disturbances across the Arctic and Subarctic. - Nature Communications. - 9 (2018), 5423 T2 - Nature Communications Y1 - 2019 U6 - https://doi.org/10.1038/s41467-019-08375-y SN - 2041-1723 VL - 10 PB - Nature Publ. Group CY - London ER - TY - GEN A1 - Niskanen, Johannes A1 - Fondell, Mattis A1 - Sahle, Christoph J. A1 - Eckert, Sebastian A1 - Jay, Raphael Martin A1 - Gilmore, Keith A1 - Pietzsch, Annette A1 - Dantz, Marcus A1 - Lu, Xingye A1 - McNally, Daniel E. A1 - Schmitt, Thorsten A1 - Vaz da Cruz, Vinicius A1 - Kimberg, Victor A1 - Föhlisch, Alexander T1 - Reply to Pettersson et al.: Why X-ray spectral features are compatible to continuous distribution models in ambient water T2 - Proceedings of the National Academy of Sciences of the United States of America Y1 - 2019 U6 - https://doi.org/10.1073/pnas.1909551116 SN - 0027-8424 VL - 116 IS - 35 SP - 17158 EP - 17159 PB - National Acad. of Sciences CY - Washington ER - TY - GEN A1 - Nguyen, Quyet Doan A1 - Wang, Jingwen A1 - Rychkov, Dmitry A1 - Gerhard, Reimund T1 - Depth Profile and Transport of Positive and Negative Charge in Surface (2-D) and Bulk (3-D) Nanocomposite Films T2 - 2nd International Conference on Electrical Materials and Power Equipment (ICEMPE 2019) N2 - In the present study, the charge distribution and the charge transport across the thickness of 2- and 3-dimensional polymer nanodielectrics was investigated. Chemically surface-treated polypropylene (PP) films and low-density polyethylene nanocomposite films with 3 wt % of magnesium oxide (LDPE/MgO) served as examples of 2-D and 3-D nanodielectrics, respectively. Surface charges were deposited onto the non-metallized surfaces of the one-side metallized polymer films and found to broaden and to thus enter the bulk of the films upon thermal stimulation at suitable elevated temperatures. The resulting space-charge profiles in the thickness direction were probed by means of Piezoelectrically-generated Pressure Steps (PPSs). It was observed that the chemical surface treatment of PP which led to the formation of nano-structures or the use of bulk nanoparticles from LDPE/MgO nanocomposites enhance charge trapping on or in the respective polymer films and also reduce charge transport inside the respective samples. KW - LDPE nanocomposites KW - MgO nanoparticles KW - Space charge KW - Charge transport KW - Charge stability KW - Acoustic probing of electric-field profiles KW - Piezoelectrically generated Pressure Steps (PPSs) Y1 - 2019 SN - 978-1-5386-8434-4 SN - 978-1-5386-8435-1 U6 - https://doi.org/10.1109/ICEMPE.2019.8727256 SP - 298 EP - 300 PB - IEEE CY - New York ER - TY - GEN A1 - Nakaten, Natalie Christine A1 - Kempka, Thomas T1 - Retraction: Techno-Economic Comparison of Onshore and Offshore Underground Coal Gasification End-Product Competitiveness. (Retraction of Vol 10, art no 1643, 2017) T2 - Energies : open-access journal of related scientific research, technology development and studies in policy and management Y1 - 2019 U6 - https://doi.org/10.3390/en12173253 SN - 1996-1073 VL - 12 IS - 17 PB - MDPI CY - Basel ER - TY - GEN A1 - Müller-Schöll, A. A1 - Klopp-Schulze, Lena A1 - Huisinga, Wilhelm A1 - Jörger, M. A1 - Neven, P. A1 - Koolen, S. L. A1 - Mathijssen, R. H. J. A1 - Schmidt, S. A1 - Kloft, Charlotte T1 - Patient-tailored tamoxifen dosing based on an increased quantitative understanding of its complex pharmacokinetics: A novel integrative modelling approach T2 - Annals of Oncology Y1 - 2019 SN - 0923-7534 SN - 1569-8041 VL - 30 PB - Oxford Univ. Press CY - Oxford ER - TY - GEN A1 - Myachykov, Andriy A1 - Fischer, Martin H. T1 - A hierarchical view of abstractness BT - Grounded, embodied, and situated aspect: Comment on "Words as social tools: Language, sociality and inner grounding in abstract concepts" by Anna M. Borghi et al. T2 - Physics of life reviews Y1 - 2019 U6 - https://doi.org/10.1016/j.plrev.2019.04.005 SN - 1571-0645 SN - 1873-1457 VL - 29 SP - 161 EP - 163 PB - Elsevier CY - Amsterdam ER - TY - GEN A1 - Moga, A. A1 - Robinson, T. A1 - Leimkühler, Silke T1 - Towards reconstituting a biosynthetic pathway within compartmentalized GUVs T2 - European biophysics journal : with biophysics letters ; an international journal of biophysics Y1 - 2019 SN - 0175-7571 SN - 1432-1017 VL - 48 SP - S218 EP - S218 PB - Springer CY - New York ER - TY - GEN A1 - Miklashevsky, Alex A. T1 - Words as social tools BT - the old and the new. Bridging cognition and communication Comment on "Words as social tools: Language, sociality and inner grounding in abstract concepts" by Anna M. Borghi et al. T2 - Physics of life reviews Y1 - 2019 U6 - https://doi.org/10.1016/j.plrev.2019.04.002 SN - 1571-0645 SN - 1873-1457 VL - 29 SP - 164 EP - 165 PB - Elsevier CY - Amsterdam ER - TY - GEN A1 - Matthies, Christoph T1 - Agile process improvement in retrospectives T2 - 41st International Conference on Software Engineering: Companion Proceedings (ICSE-Companion) N2 - Working in iterations and repeatedly improving team workflows based on collected feedback is fundamental to agile software development processes. Scrum, the most popular agile method, provides dedicated retrospective meetings to reflect on the last development iteration and to decide on process improvement actions. However, agile methods do not prescribe how these improvement actions should be identified, managed or tracked in detail. The approaches to detect and remove problems in software development processes are therefore often based on intuition and prior experiences and perceptions of team members. Previous research in this area has focused on approaches to elicit a team's improvement opportunities as well as measurements regarding the work performed in an iteration, e.g. Scrum burn-down charts. Little research deals with the quality and nature of identified problems or how progress towards removing issues is measured. In this research, we investigate how agile development teams in the professional software industry organize their feedback and process improvement approaches. In particular, we focus on the structure and content of improvement and reflection meetings, i.e. retrospectives, and their outcomes. Researching how the vital mechanism of process improvement is implemented in practice in modern software development leads to a more complete picture of agile process improvement. KW - Agile KW - Scrum KW - software process improvement KW - retrospective Y1 - 2019 SN - 978-1-7281-1764-5 SN - 978-1-7281-1765-2 U6 - https://doi.org/10.1109/ICSE-Companion.2019.00063 SN - 2574-1934 SN - 2574-1926 SP - 150 EP - 152 PB - IEEE CY - New York ER - TY - GEN A1 - Matthies, Christoph T1 - Feedback in Scrum BT - Data-Informed Retrospectives T2 - 2019 IEEE/ACM 41st International Conference on Software Engineering: Companion Proceedings (ICSE-Companion) N2 - Improving the way that teams work together by reflecting and improving the executed process is at the heart of agile processes. The idea of iterative process improvement takes various forms in different agile development methodologies, e.g. Scrum Retrospectives. However, these methods do not prescribe how improvement steps should be conducted in detail. In this research we investigate how agile software teams can use their development data, such as commits or tickets, created during regular development activities, to drive and track process improvement steps. Our previous research focused on data-informed process improvement in the context of student teams, where controlled circumstances and deep domain knowledge allowed creation and usage of specific process measures. Encouraged by positive results in this area, we investigate the process improvement approaches employed in industry teams. Researching how the vital mechanism of process improvement is implemented and how development data is already being used in practice in modern software development leads to a more complete picture of agile process improvement. It is the first step in enabling a data-informed feedback and improvement process, tailored to a team's context and based on the development data of individual teams. KW - agile KW - software development KW - Scrum KW - retrospective KW - software process improvement Y1 - 2019 SN - 978-1-7281-1764-5 SN - 978-1-7281-1765-2 U6 - https://doi.org/10.1109/ICSE-Companion.2019.00081 SN - 2574-1934 SN - 2574-1926 SP - 198 EP - 201 PB - IEEE CY - New York ER - TY - GEN A1 - Marwecki, Sebastian A1 - Wilson, Andrew D. A1 - Ofek, Eyal A1 - Franco, Mar Gonzalez A1 - Holz, Christian T1 - Mise-Unseen BT - Using Eye-Tracking to Hide Virtual Reality Scene Changes in Plain Sight T2 - UIST '19: Proceedings of the 32nd Annual ACM Symposium on User Interface Software and Technology N2 - Creating or arranging objects at runtime is needed in many virtual reality applications, but such changes are noticed when they occur inside the user's field of view. We present Mise-Unseen, a software system that applies such scene changes covertly inside the user's field of view. Mise-Unseen leverages gaze tracking to create models of user attention, intention, and spatial memory to determine if and when to inject a change. We present seven applications of Mise-Unseen to unnoticeably modify the scene within view (i) to hide that task difficulty is adapted to the user, (ii) to adapt the experience to the user's preferences, (iii) to time the use of low fidelity effects, (iv) to detect user choice for passive haptics even when lacking physical props, (v) to sustain physical locomotion despite a lack of physical space, (vi) to reduce motion sickness during virtual locomotion, and (vii) to verify user understanding during story progression. We evaluated Mise-Unseen and our applications in a user study with 15 participants and find that while gaze data indeed supports obfuscating changes inside the field of view, a change is rendered unnoticeably by using gaze in combination with common masking techniques. KW - Eye-tracking KW - virtual reality KW - change blindness KW - inattentional blindness KW - staging Y1 - 2019 SN - 978-1-4503-6816-2 U6 - https://doi.org/10.1145/3332165.3347919 SP - 777 EP - 789 PB - Association for Computing Machinery CY - New York ER - TY - GEN A1 - Luckner, Madlen A1 - Dunsing, Valentin A1 - Drüke, Markus A1 - Zuehlke, B. A1 - Petazzi, Roberto Arturo A1 - Chiantia, Salvatore A1 - Herrmann, A. T1 - Quantifying protein oligomerization directly in living cells BT - a systematic comparison of fluorescent proteins and application to Influenza A virus infection T2 - European biophysics journal : with biophysics letters ; an international journal of biophysics Y1 - 2019 SN - 0175-7571 SN - 1432-1017 VL - 48 SP - S183 EP - S183 PB - Springer CY - New York ER - TY - GEN A1 - Loupos, Konstantinos A1 - Damigos, Yannis A1 - Tsertou, Athanasisa A1 - Amditis, Angelos A1 - Lenas, Sotiris-Angelos A1 - Chatziandreoglou, Chistos A1 - Malliou, Christina A1 - Tsaoussidis, Vassilis A1 - Gerhard, Reimund A1 - Rychkov, Dmitry A1 - Wirges, Werner A1 - Frankenstein, Bernd A1 - Camarinopoulos, Stephanos A1 - Kalidromitis, Vassilis A1 - Sanna, C. A1 - Maier, Stephanos A1 - Gordt, A. A1 - Panetsos, P. T1 - Innovative soft-material sensor, wireless network and assessment software for bridge life-cycle assessment T2 - Life-cycle analysis and assessmanet in civil engineering : towards an integrated vision N2 - Nowadays, structural health monitoring of critical infrastructures is considered as of primal importance especially for managing transport infrastructure however most current SHM methodologies are based on point-sensors that show various limitations relating to their spatial positioning capabilities, cost of development and measurement range. This publication describes the progress in the SENSKIN EC co-funded research project that is developing a dielectric-elastomer sensor, formed from a large highly extensible capacitance sensing membrane and is supported by an advanced micro-electronic circuitry, for monitoring transport infrastructure bridges. The sensor under development provides spatial measurements of strain in excess of 10%, while the sensing system is being designed to be easy to install, require low power in operation concepts, require simple signal processing, and have the ability to self-monitor and report. An appropriate wireless sensor network is also being designed and developed supported by local gateways for the required data collection and exploitation. SENSKIN also develops a Decision-Support-System (DSS) for proactive condition-based structural interventions under normal operating conditions and reactive emergency intervention following an extreme event. The latter is supported by a life-cycle-costing (LCC) and life-cycle-assessment (LCA) module responsible for the total internal and external costs for the identified bridge rehabilitation, analysis of options, yielding figures for the assessment of the economic implications of the bridge rehabilitation work and the environmental impacts of the bridge rehabilitation options and of the associated secondary effects respectively. The overall monitoring system will be evaluated and benchmarked on actual bridges of Egnatia Highway (Greece) and Bosporus Bridge (Turkey). Y1 - 2019 SN - 978-1-315-22891-4 SN - 978-1-138-62633-1 SP - 2085 EP - 2092 PB - CRC Press, Taylor & Francis Group CY - Boca Raton ER - TY - GEN A1 - Lopez Tarazon, José Andrés A1 - Bronstert, Axel A1 - Thieken, Annegret A1 - Petrow, Theresia T1 - The effects of global change on floods, fluvial geomorphology and related hazards in mountainous rivers T2 - The science of the total environment : an international journal for scientific research into the environment and its relationship with man Y1 - 2019 U6 - https://doi.org/10.1016/j.scitotenv.2019.03.026 SN - 0048-9697 SN - 1879-1026 VL - 669 SP - 7 EP - 10 PB - Elsevier CY - Amsterdam ER - TY - GEN A1 - Lohse, Karoline A1 - Sixtus, Elena A1 - Lonnemann, Jan T1 - Thinking about time and number BT - an application of the dual-systems approach to numerical cognition T2 - Behavioral and brain sciences : an international journal of current research and theory with open peer commentary N2 - Based on the notion that time, space, and number are part of a generalized magnitude system, we assume that the dual-systems approach to temporal cognition also applies to numerical cognition. Referring to theoretical models of the development of numerical concepts, we propose that children's early skills in processing numbers can be described analogously to temporal updating and temporal reasoning. Y1 - 2019 U6 - https://doi.org/10.1017/S0140525X19000475 SN - 0140-525X SN - 1469-1825 VL - 42 PB - Cambridge Univ. Press CY - New York ER - TY - GEN A1 - Liedhegener, Antonius A1 - Kösters, Christoph A1 - Brechenmacher, Thomas T1 - Catholicism BT - On the Past, Present, and Future of its modern Notion T2 - Historisches Jahrbuch Y1 - 2019 SN - 0018-2621 VL - 139 SP - 601 EP - 618 PB - Herder CY - Freiburg Breisgau ER - TY - GEN A1 - Lewis, Alison A1 - Glajar, Valentina A1 - Petrescu, Corina L. T1 - Introduction T2 - Cold War Spy Stories from Eastern Europe Y1 - 2019 SN - 978-1-64012-200-0 SN - 978-1-64012-187-4 SP - 1 EP - 26 PB - University of Nebraska Press CY - Lincoln ER - TY - GEN A1 - Lewandowsky, Stephan A1 - Cowtan, Kevin A1 - Risbey, James S. A1 - Mann, Michael E. A1 - Steinman, Byron A. A1 - Oreskes, Naomi A1 - Rahmstorf, Stefan T1 - Erratum: The 'pause' in global warming in historical context: II. Comparing models to observations (Environmental research letters. - Vol 13, (2018) 123007) T2 - Environmental research letters N2 - We review the evidence for a putative early 21st-century divergence between global mean surface temperature (GMST) and Coupled Model Intercomparison Project Phase 5 (CMIP5) projections. We provide a systematic comparison between temperatures and projections using historical versions of GMST products and historical versions of model projections that existed at the times when claims about a divergence were made. The comparisons are conducted with a variety of statistical techniques that correct for problems in previous work, including using continuous trends and a Monte Carlo approach to simulate internal variability. The results show that there is no robust statistical evidence for a divergence between models and observations. The impression of a divergence early in the 21st century was caused by various biases in model interpretation and in the observations, and was unsupported by robust statistics. Y1 - 2019 U6 - https://doi.org/10.1088/1748-9326/aafbb7 SN - 1748-9326 VL - 14 IS - 4 PB - IOP Publ. Ltd. CY - Bristol ER - TY - GEN A1 - Lepro, Valentino A1 - Nagel, Oliver A1 - Klumpp, Stefan A1 - Lipowsky, Reinhard A1 - Beta, Carsten T1 - Cooperative Transport by Amoeboid Cells BT - a Cellular Tug-of-War T2 - Biophysical journal Y1 - 2019 U6 - https://doi.org/10.1016/j.bpj.2018.11.682 SN - 0006-3495 SN - 1542-0086 VL - 116 IS - 3 SP - 122A EP - 122A PB - Cell Press CY - Cambridge ER - TY - GEN A1 - Lenton, Timothy M. A1 - Rockstroem, Johan A1 - Gaffney, Owen A1 - Rahmstorf, Stefan A1 - Richardson, Katherine A1 - Steffen, Will A1 - Schellnhuber, Hans Joachim T1 - Climate tipping points - too risky to bet against : Comment T2 - Nature : the international weekly journal of science Y1 - 2019 U6 - https://doi.org/10.1038/d41586-019-03595-0 SN - 0028-0836 SN - 1476-4687 VL - 575 IS - 7784 SP - 592 EP - 595 PB - Nature Publ. Group CY - London ER - TY - GEN A1 - Lazarian, Alexander A1 - Yan, Huirong T1 - Erratum: Superdiffusion of Cosmic Rays: Implications for Cosmic Ray Acceleration (The American Astronomical Society. - Vol. 784, (2014), 38) T2 - The astrophysical journal : an international review of spectroscopy and astronomical physics N2 - Diffusion of cosmic rays (CRs) is the key process for understanding their propagation and acceleration. We employ the description of spatial separation of magnetic field lines in magnetohydrodynamic turbulence in Lazarian & Vishniac to quantify the divergence of the magnetic field on scales less than the injection scale of turbulence and show that this divergence induces superdiffusion of CR in the direction perpendicular to the mean magnetic field. The perpendicular displacement squared increases, not as the distance x along the magnetic field, which is the case for a regular diffusion, but as the x 3 for freely streaming CRs. The dependence changes to x 3/2 for the CRs propagating diffusively along the magnetic field. In the latter case, we show that it is important to distinguish the perpendicular displacement with respect to the mean field and to the local magnetic field. We consider how superdiffusion changes the acceleration of CRs in shocks and show how it decreases efficiency of the CRs acceleration in perpendicular shocks. We also demonstrate that in the case when the small-scale magnetic field is generated in the pre-shock region, an efficient acceleration can take place for the CRs streaming without collisions along the magnetic loops. Y1 - 2019 U6 - https://doi.org/10.3847/1538-4357/ab50ba SN - 0004-637X SN - 1538-4357 VL - 885 IS - 2 PB - IOP Publ. Ltd. CY - Bristol ER - TY - GEN A1 - König, Julian A1 - Weymar, Mathias A1 - Friedman, Bruce T1 - Beyond Observation: Transcutaneous Vagus Nerve Stimulation in Psychophysiological Research T2 - Psychophysiology : journal of the Society for Psychophysiological Research Y1 - 2019 U6 - https://doi.org/10.1111/psyp.13439 SN - 0048-5772 SN - 1469-8986 VL - 56 SP - S11 EP - S11 PB - Wiley CY - Hoboken ER - TY - GEN A1 - Kubatova, Brankica A1 - Hamann, Wolf-Rainer A1 - Kubat, Jiri A1 - Oskinova, Lida T1 - 3D Monte Carlo Radiative Transfer in Inhomogeneous Massive Star Winds BT - Application to Resonance Line Formation T2 - Radiative signatures from the cosmos N2 - Already for decades it has been known that the winds of massive stars are inhomogeneous (i.e. clumped). To properly model observed spectra of massive star winds it is necessary to incorporate the 3-D nature of clumping into radiative transfer calculations. In this paper we present our full 3-D Monte Carlo radiative transfer code for inhomogeneous expanding stellar winds. We use a set of parameters to describe dense as well as the rarefied wind components. At the same time, we account for non-monotonic velocity fields. We show how the 3-D density and velocity wind inhomogeneities strongly affect the resonance line formation. We also show how wind clumping can solve the discrepancy between P v and H alpha mass-loss rate diagnostics. Y1 - 2019 SN - 978-1-58381-925-8 SN - 1050-3390 VL - 519 SP - 209 EP - 212 PB - Astronomical soc pacific CY - San Fransisco ER -