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» A Search Engine for Mathematical Formulae
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WWW
2008
ACM
14 years 9 months ago
Characterizing typical and atypical user sessions in clickstreams
Millions of users retrieve information from the Internet using search engines. Mining these user sessions can provide valuable information about the quality of user experience and...
Narayanan Sadagopan, Jie Li
LDTA
2010
13 years 8 months ago
Faster ambiguity detection by grammar filtering
Real programming languages are often defined using ambiguous context-free grammars. Some ambiguity is intentional while other ambiguity is accidental. A good grammar development e...
H. J. S. Basten, Jurgen J. Vinju
GECCO
2008
Springer
175views Optimization» more  GECCO 2008»
13 years 9 months ago
Using differential evolution for symbolic regression and numerical constant creation
One problem that has plagued Genetic Programming (GP) and its derivatives is numerical constant creation. Given a mathematical formula expressed as a tree structure, the leaf node...
Brian M. Cerny, Peter C. Nelson, Chi Zhou
SIGIR
2010
ACM
13 years 8 months ago
Score distribution models: assumptions, intuition, and robustness to score manipulation
Inferring the score distribution of relevant and non-relevant documents is an essential task for many IR applications (e.g. information filtering, recall-oriented IR, meta-search,...
Evangelos Kanoulas, Keshi Dai, Virgiliu Pavlu, Jav...
SAC
2010
ACM
13 years 6 months ago
A machine-checked soundness proof for an efficient verification condition generator
Verification conditions (VCs) are logical formulae whose validity implies the correctness of a program with respect to a specification. The technique of checking software properti...
Frédéric Vogels, Bart Jacobs 0002, F...