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The problem of identifying useful and trustworthy information on the World Wide Web is becoming increasingly acute as new tools such as wikis and blogs simplify and democratize publication. It is not hard to predict that in the future the direct reliance on this material will expand and the problem of evaluating the trustworthiness of this kind of content(More)
The problem of identifying trustworthy information on the World Wide Web is becoming increasingly acute as new tools such as wikis and blogs simplify and democratize publications. Wikipedia is the most extraordinary example of this phenomenon and, although a few mechanisms have been put in place to improve contributions quality, trust in Wikipedia content(More)
In this paper we investigate how temporal factors (i.e. factors computed by considering only the time-distribution of interactions) can be used as an evidence of an entity’s trustworthiness. While reputation and direct experience are the two most widely used sources of trust in applications, we believe that new sources of evidence and new(More)
—The successful evolution of team developed software—where multiple parties modify system artifacts concurrently—mandates a process in which change and conflict resolution are suitably addressed. It follows then, that in a collaborative Model Driven Engineering (MDE) environment, support for the reliable merging of models is essential. Unfortunately, an(More)
The concept of social search has been acquiring importance in the WWW as large-scale collabo-rative computing environments have become feasible.This field focuses on the reader's perspective in order to assign relevance and trustworthiness to web pages. Although current web searching technologies tend to rely on explicit human recommendations, these(More)
We present locoGP, a Genetic Programming (GP) system written in Java for evolving Java source code. locoGP was designed to improve the performance of programs as measured in the number of operations executed. Variable test cases are used to maintain functional correctness during evolution. The operation of locoGP is demonstrated on a number of typically(More)
Mirador is a model merging tool that supports multiple model comparison strategies for the purpose of matching model elements. Capable of running either standalone, or as a Fujaba plug-in, Mirador leverages the CoObRA software versioning package to obtain model change information. The bringing together of various comparison strategies allows Mirador to(More)
This paper describes a model for computer programming outreach workshops aimed at second-level students (ages 15–16). Participants engage in a series of programming activities based on the Scratch visual programming language, and a very strong group-based pedagogy is followed. Participants are not required to have any prior programming experience. An(More)