TY  - JOUR
A1  - Yang, Yong
A1  - Dumas, Marlon
A1  - Garcia-Banuelos, Luciano
A1  - Polyvyanyy, Artem
A1  - Zhang, Liang
T1  - Generalized aggregate quality of service computation for composite services
JF  - The journal of systems and software
N2  - This article addresses the problem of estimating the Quality of Service (QoS) of a composite service given the QoS of the services participating in the composition. Previous solutions to this problem impose restrictions on the topology of the orchestration models, limiting their applicability to well-structured orchestration models for example. This article lifts these restrictions by proposing a method for aggregate QoS computation that deals with more general types of unstructured orchestration models. The applicability and scalability of the proposed method are validated using a collection of models from industrial practice.
KW  - Service-oriented computing
KW  - Service composition
KW  - Service orchestration
KW  - Quality of service
Y1  - 2012
U6  - https://doi.org/10.1016/j.jss.2012.03.005
SN  - 0164-1212
VL  - 85
IS  - 8
SP  - 1818
EP  - 1830
PB  - Elsevier
CY  - New York
ER  - 
TY  - JOUR
A1  - Hildebrandt, Dieter
T1  - Image-based styling
JF  - The Visual Computer
N2  - The same data can be visualized using various visual styles that each is suitable for specific requirements, e.g., 3D geodata visualized using photorealistic, cartographic, or illustrative styles. In contrast to feature-based styling, image-based styling performed in image space at image resolution allows decoupling styling from image generation and output-sensitive, expressive styling. However, leveraging image-based styling is still impeded. No previous approach allows specifying image-based styling expressively with an extensive inventory of composable operators, while providing styling functionality in a service-oriented, interoperable manner. In this article, we present an interactive system for specifying and providing the functionality of image-based styling. As key characteristics, it separates concerns of styling from image generation and facilitates specifying styling as algebraic compositions of high-level operators using a unified 3D model representation. We propose a generalized visualization model, an image-based styling algebra, two declarative DSLs, an operator taxonomy, an operational model, and a standards-based service interface. The approach facilitates expressive specifications of image-based styling for design, description, and analysis and leveraging the functionality of image-based styling in a service-oriented, interoperable, reusable, and composable manner.
KW  - Styling
KW  - Image-based representation
KW  - Visualization model
KW  - Domain-specific language
KW  - Taxonomy
KW  - Optimization
KW  - Interoperability
KW  - Service-oriented computing
Y1  - 2016
U6  - https://doi.org/10.1007/s00371-015-1073-3
SN  - 0178-2789
SN  - 1432-2315
VL  - 32
SP  - 445
EP  - 463
PB  - Springer
CY  - New York
ER  -