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» Reasoning about Staged Computation
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DCC
2010
IEEE
15 years 4 months ago
Lossless Data Compression via Substring Enumeration
We present a technique that compresses a string w by enumerating all the substrings of w. The substrings are enumerated from the shortest to the longest and in lexicographic order...
Danny Dubé, Vincent Beaudoin
CHI
2010
ACM
15 years 4 months ago
Signed networks in social media
Relations between users on social media sites often reflect a mixture of positive (friendly) and negative (antagonistic) interactions. In contrast to the bulk of research on soci...
Jure Leskovec, Daniel P. Huttenlocher, Jon M. Klei...
SAC
2010
ACM
15 years 4 months ago
Web-based graphical querying of databases through an ontology: the Wonder system
Biological scientists have made large amounts of data available on the Web, which can be accessed by canned or precomputed queries presented via web forms. To satisfy further info...
Diego Calvanese, C. Maria Keet, Werner Nutt, Maria...
HYBRID
2010
Springer
15 years 4 months ago
Automatic invariant generation for hybrid systems using ideal fixed points
We present computational techniques for automatically generating algebraic (polynomial equality) invariants for algebraic hybrid systems. Such systems involve ordinary differentia...
Sriram Sankaranarayanan
CSE
2009
IEEE
15 years 4 months ago
A Framework to Balance Privacy and Data Usability Using Data Degradation
—Personal data is a valuable asset for service providers. To collect such data, free services are offered to users, for whom the risk of loosing privacy by subscribing to a servi...
Harold van Heerde, Maarten M. Fokkinga, Nicolas An...