Sciweavers

2877 search results - page 49 / 576
» Learn to weight terms in information retrieval using categor...
Sort
View
WWW
2008
ACM
14 years 9 months ago
A graph-theoretic approach to webpage segmentation
We consider the problem of segmenting a webpage into visually and semantically cohesive pieces. Our approach is based on formulating an appropriate optimization problem on weighte...
Deepayan Chakrabarti, Ravi Kumar, Kunal Punera
WWW
2007
ACM
14 years 9 months ago
Web projections: learning from contextual subgraphs of the web
Graphical relationships among web pages have been leveraged as sources of information in methods for ranking search results. To date, specific graphical properties have been used ...
Jure Leskovec, Susan T. Dumais, Eric Horvitz
RIAO
2004
13 years 10 months ago
Combining Positive and Negative Query Feedback in Passage Retrieval
Information Retrieval Systems aim at retrieving relevant documents according to the information needs which users express. Most Information Retrieval Systems focus on passage retr...
Taoufiq Dkaki, Josiane Mothe
DOCENG
2005
ACM
13 years 11 months ago
Managing syntactic variation in text retrieval
Information Retrieval systems are limited by the linguistic variation of language. The use of Natural Language Processing techniques to manage this problem has been studied for a ...
Jesús Vilares, Carlos Gómez-Rodr&iac...
SIGIR
2011
ACM
12 years 11 months ago
A boosting approach to improving pseudo-relevance feedback
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback...
Yuanhua Lv, ChengXiang Zhai, Wan Chen