 Sandro Boccuzzo, H C Gall, CocoViz with ambient audio software exploration, In: 31st International Conference on Software Engineering, IEEE, Vancouver, 2009-05-16. (Conference or Workshop Paper)
 
For ages we used our ears side by side with our ophthalmic stimuli to gather additional information, leading and supporting us in our visualization. Nowadays numerous software visualization techniques exist that aim to facilitate program comprehension. In this paper we discuss how we can support such software comprehension visualization with environmental audio and lead users to identify relevant aspects. We use cognitive visualization techniques and audio concepts described in our previous work to create an ambient audio software exploration (AASE) out of program entities (packages, classes ...) and their mapped properties. The concepts where implemented in a extended version of our tool called CocoViz. Our first results with the prototype shows that with this combination of visual and aural means we can provide additional information to lead users during program comprehension tasks. |
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Christian Bird, Nachiappan Nagappan, Premkumar Devanbu, Harald Gall, Brendan Murphy, Does distributed development affect software quality? An empirical case study of Windows Vista, In: 31st International Conference on Software Engineering, IEEE, Vancouver, 2009-05-16. (Conference or Workshop Paper published in Proceedings)
It is widely believed that distributed software development is riskier and more challenging than collocated development. Prior literature on distributed development in software engineering and other fields discuss various challenges, including cultural barriers, expertise transfer difficulties, and communication and coordination overhead. We evaluate this conventional belief by examining the overall development of Windows Vista and comparing the post-release failures of components that were developed in a distributed fashion with those that were developed by collocated teams. We found a negligible difference in failures. This difference becomes even less significant when controlling for the number of developers working on a binary. We also examine component characteristics such as code churn, complexity, dependency information, and test code coverage and find very little difference between distributed and collocated components to investigate if less complex components are more distributed. Further, we examine the software process and phenomena that occurred during the Vista development cycle and present ways in which the development process utilized may be insensitive to geography by mitigating the difficulties introduced in prior work in this area. |
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H C Gall, G Reif, ICSE 2009 Tutorial - Semantic Web Technologies in Software Engineering, In: 31th International Conference on Software Engineering, 2009-05-16. (Conference or Workshop Paper)
Over the years, the software engineering community has developed various tools to support the specification, development, and maintainance of software. Many of these tools use proprietary data formats to store artifacts which hamper interoperability. On the other hand, the Semantic Web provides a common framework that allows data to be shared and reused across application, enterprise, and community boundaries. Ontologies are used to define the concepts in the domain of discourse and their relationships and as such provide the formal vocabulary applications use to exchange data. Besides the Web, the technologies developed for the Semantic Web have proven to be useful also in other domains, especially when data is exchanged between applications from different parties. Software engineering is one of these domains in which recent research shows that Semantic Web technologies are able to reduce the barriers of proprietary data formats and enable interoperability.
In this tutorial, we present Semantic Web technologies and their application in software engineering. We discuss the current status of ontologies for software entities, bug reports, or change requests, as well as semantic representations for software and its documentation. This way, architecture, design, code, or test models can be shared across application boundaries enabling a seamless integration of engineering results. |
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D Brunner, Erfolg dank Gespür für Dringlichkeit, In: Neue Zürcher Zeitung, 112, p. 71, 16 May 2009. (Newspaper Article)
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Burkhard Stiller, Design and Evaluation of a Combinatorial Double Auction for Resource Allocations in Grids, In: 6th International Workshop on Internet Charging and QoS Technologies (ICQT 09). 2009. (Conference Presentation)
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Network Economics for Next Generation Networks : 6th International Workshop on Internet Charging and Qos Technologies, ICQT 2009, Aachen, Germany, May 11-15, 2009. Proceedings, Edited by: Peter Reichl, Burkhard Stiller, Bruno Tuffin, Springer, Heidelberg, 2009-05-15. (Edited Scientific Work)
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Bruno Staffelbach, Von Einsatzerfahrungen lernen, Brigadekommandant in einer multinationalen Übung, In: Neue Zürcher Zeitung, 110, p. 17, 14 May 2009. (Newspaper Article)
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Peter Zweifel, Technological change and health insurance, In: The economics of new health technologies: incentives, organization and financing, Oxford University Press, Oxford, p. 93 - 107, 2009-05-14. (Book Chapter)
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Andreas Scherer, Guido Palazzo, Anton Leist, Ein Testfall für den Wissenschaftsstandort. Die Aufregung um den Wirtschaftsethiker Ulrich Thielemann, In: Neue Zürcher Zeitung, p. 16, 13 May 2009. (Newspaper Article)
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Burkhard Stiller, Terminology: Self-healing ? Background, Comparisons, Mechanisms, In: Dagstuhl Seminar on "Self-healing and Self-adaption". 2009. (Conference Presentation)
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L Aryananda, Learning to Recognize Familiar Faces in the Real World, In: IEEE International Conference on Robotics and Automation, 2009-05-12. (Conference or Workshop Paper published in Proceedings)
We present an incremental and unsupervised face recognition system and evaluate it offline using data which were automatically collected by Mertz, a robotic platform embedded in real human environment. In an eight-day-long experiment, the robot autonomously detects, tracks, and segments face images during spontaneous interactions with over 500 passersby in public spaces and automatically generates a data set of over 100,000 face images. We describe and evaluate a novel face clustering algorithm using these data (without any manual processing) and also on an existing face recognition database. The face clustering algorithm yields good and robust performance despite the extremely noisy data segmented from the realistic and difficult public environment. In an incremental recognition scheme evaluation, the system is correct 74% of the time when it declares "I don't know this person" and 75.1% of the time when it declares " I know this person, he/she is ..." The latter accuracy improves to 83.8% if the system is allowed some learning curve delay in the beginning. |
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Burkhard Stiller, Self-healing and Self-adaption in the Internet Does ?Economic Traffic Management Belong to this Self-* Class of Mechanisms?, In: Dagstuhl Seminar on "Self-healing and Self-adaption". 2009. (Conference Presentation)
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L Li, Y Liu, D Hausheer, Burkhard Stiller, Design and Evaluation of a Combinatorial Double Auction for Resource Allocations in Grids, In: 6th International Workshop on Internet Charging and QoS Technologies (ICQT 2009), Springer, Berlin, 2009-05-11. (Conference or Workshop Paper published in Proceedings)
Offering Grid services in an open market determines an optimization case for finding the best suitable resource allocation for a given number of requests and existing resources. Thus, appropriate resource allocation schemes, supporting accounting, are required in addition to a pricing scheme, which supports financial fairness criteria. The newly developed Resource Allocation Model for the Combinatorial Double Auction (RAMCoDA) achieves these requirements, while being incentive compatible. |
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Katja Rost, Margit Osterloh, Expert Knowledge and Gender as Drivers of Forecast Errors, In: EURAM Annual Conference Best Paper Proceeding, 2009-05-11. (Conference or Workshop Paper published in Proceedings)
A factor that unquestionably amplified the magnitude of the financial crisis was widespread miscalculation by banks and investors. It raises the question why most directors in the bank did not have the foresight to predict the problems of taking on too much risk. This article argues that one reason for these failures may be the under-representation of varied educational backgrounds and differentiated viewpoints in boards. Psychological economics shows that
experts and males have the tendency to underestimate the probability of non-typical or negative events. Literature further demonstrates that especially homogeneous groups often engage in herding behavior and thus cause systematic risks. Using a dataset which has been collected shortly before the financial system was in danger of collapsing we demonstrate that females and persons with a non-economic-background were significantly more able to predict the collapsing stock market prices whereas males with an economic background made by fare the worst predictions. A second data sample supports these findings for decision making in a strategic context. The results show that banks which relied on decision committees with a higher percentage of non-economists are less affected by the financial crisis. |
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Sven Seuken, Denis Charles, Max Chickering, Sidd Puri, Market Design for a P2P Backup System, In: 1st Conference on Auctions, Market Mechanisms and Applications (AMMA), Boston, MA, 2009. (Conference or Workshop Paper published in Proceedings)
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Burkhard Stiller, TuneInNet könnte den Datentransfer im Internet vereinfachen, Bulletin SEV/VSE (0905), 2009. (Journal Article)
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Burkhard Stiller, Management in the Internet: Do QoS and QoE Effect Service Management?, In: Dagstuhl Seminar on "From Quality of Service to Quality of Experience". 2009. (Conference Presentation)
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Matteo Bonato, Multivariate volatility modeling and forecasting with stable GARCH and Wishart Autoregressive models, University of Zurich, Faculty of Business, Economics and Informatics, 2009. (Dissertation)
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Andreas Ita, Case study: Currency hedging of ABB, University of Zurich, Faculty of Economics, Business Administration and Information Technology, 2009. (Bachelor's Thesis)
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Christoph Jenny, The Effects of a Credit Crunch on the Profitability of M&A Transactions, University of Zurich, Faculty of Economics, Business Administration and Information Technology, 2009. (Bachelor's Thesis)
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