334 search results - page 31 / 67 » On the Update of Term Weights in Dynamic Information Retriev... |
CIKM
2009
Springer
13 years 5 months ago
2009
Springer
Standard approaches to evaluating and comparing information retrieval systems compute simple averages of performance statistics across individual topics to measure the overall sys...
MIR
2005
ACM
14 years 1 months ago
2005
ACM
Concept drifting is an important and challenging research issue in the field of machine learning. This paper mainly addresses the issue of semantic concept drifting in time series...
WWW
2005
ACM
14 years 8 months ago
2005
ACM
Online Curriculum Portals aim to support networks of instructors and learners by providing a space of convergence for enhancing peer-to-peer learning interactions among individual...
WWW
2004
ACM
14 years 8 months ago
2004
ACM
We present a principled methodology for filtering news stories by formal measures of information novelty, and show how the techniques can be used to custom-tailor newsfeeds based ...
SIGIR
2005
ACM
14 years 1 months ago
2005
ACM
This paper describes a method of detecting Japanese Katakana variants from a large corpus. Katakana words, which are mainly used as loanwords, cause problems with information retr...