173 search results - page 15 / 35 » An evaluation of evolved term-weighting schemes in informati... |
WWW
2011
ACM
13 years 2 months ago
2011
ACM
We introduce an unsupervised query segmentation scheme that uses query logs as the only resource and can effectively capture the structural units in queries. We believe that Web s...
CIVR
2007
Springer
14 years 1 months ago
2007
Springer
Bag-of-features (BoF) deriving from local keypoints has recently appeared promising for object and scene classification. Whether BoF can naturally survive the challenges such as ...
VLDB
2002
ACM
14 years 7 months ago
2002
ACM
Multiversion support for XML documents is needed in many critical applications, such as software configuration control, cooperative authoring, web information warehouses, and "...
CIKM
2007
Springer
14 years 1 months ago
2007
Springer
Searching answers to complex questions is a challenging IR task. In this paper, we examine the use of query templates with semantic slots to formulate slot-based queries. These qu...
MM
2004
ACM
14 years 28 days ago
2004
ACM
Relevance feedback has been proposed as an important technique to boost the retrieval performance in content-based image retrieval (CBIR). However, since there exists a semantic g...