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» Ranking functions and rankings on languages
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ICML
2008
IEEE
14 years 8 months ago
Listwise approach to learning to rank: theory and algorithm
This paper aims to conduct a study on the listwise approach to learning to rank. The listwise approach learns a ranking function by taking individual lists as instances and minimi...
Fen Xia, Tie-Yan Liu, Jue Wang, Wensheng Zhang, Ha...
CC
2010
Springer
120views System Software» more  CC 2010»
13 years 5 months ago
Lower Bounds for Agnostic Learning via Approximate Rank
We prove that the concept class of disjunctions cannot be pointwise approximated by linear combinations of any small set of arbitrary real-valued functions. That is, suppose that t...
Adam R. Klivans, Alexander A. Sherstov
ESWA
2008
113views more  ESWA 2008»
13 years 7 months ago
A weighted string pattern matching-based passage ranking algorithm for video question answering
Video question answering aims to pinpoint answers in response to user's specified questions. However, most question answering technologies involve in integrating rich specifi...
Yu-Chieh Wu, Jie-Chi Yang, Yue-Shi Lee
ESA
2010
Springer
161views Algorithms» more  ESA 2010»
13 years 8 months ago
Top-k Ranked Document Search in General Text Databases
Text search engines return a set of k documents ranked by similarity to a query. Typically, documents and queries are drawn from natural language text, which can readily be partiti...
J. Shane Culpepper, Gonzalo Navarro, Simon J. Pugl...
SIGMOD
2008
ACM
118views Database» more  SIGMOD 2008»
13 years 7 months ago
NAGA: harvesting, searching and ranking knowledge
The presence of encyclopedic Web sources, such as Wikipedia, the Internet Movie Database (IMDB), World Factbook, etc. calls for new querying techniques that are simple and yet mor...
Gjergji Kasneci, Fabian M. Suchanek, Georgiana Ifr...