Sciweavers

1879 search results - page 375 / 376
» How are we searching the World Wide Web
Sort
View
SIGIR
2009
ACM
13 years 11 months ago
Approximating true relevance distribution from a mixture model based on irrelevance data
Pseudo relevance feedback (PRF), which has been widely applied in IR, aims to derive a distribution from the top n pseudo relevant documents D. However, these documents are often ...
Peng Zhang, Yuexian Hou, Dawei Song
KDD
2007
ACM
193views Data Mining» more  KDD 2007»
14 years 5 months ago
Joint optimization of wrapper generation and template detection
Many websites have large collections of pages generated dynamically from an underlying structured source like a database. The data of a category are typically encoded into similar...
Shuyi Zheng, Ruihua Song, Ji-Rong Wen, Di Wu
SIGMOD
2004
ACM
150views Database» more  SIGMOD 2004»
14 years 5 months ago
When one Sample is not Enough: Improving Text Database Selection Using Shrinkage
Database selection is an important step when searching over large numbers of distributed text databases. The database selection task relies on statistical summaries of the databas...
Panagiotis G. Ipeirotis, Luis Gravano
MHCI
2009
Springer
13 years 12 months ago
Designing phrase builder: a mobile real-time query expansion interface
As users enter web queries, real-time query expansion (RTQE) interfaces offer suggestions based on an index garnered from query logs. In selecting a suggestion, users can potentia...
Tim Paek, Bongshin Lee, Bo Thiesson
SIGMOD
2011
ACM
242views Database» more  SIGMOD 2011»
12 years 8 months ago
The SystemT IDE: an integrated development environment for information extraction rules
Information Extraction (IE) — the problem of extracting structured information from unstructured text — has become the key enabler for many enterprise applications such as sem...
Laura Chiticariu, Vivian Chu, Sajib Dasgupta, Thil...