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SIGMOD
2004
ACM
153views Database» more  SIGMOD 2004»
14 years 1 months ago
Spatially-decaying aggregation over a network: model and algorithms
Data items are often associated with a location in which they are present or collected, and their relevance or in uence decays with their distance. Aggregate values over such data...
Edith Cohen, Haim Kaplan
SIGIR
2010
ACM
13 years 11 months ago
Query log analysis in the context of information retrieval for children
In this paper we analyze queries and sessions intended to satisfy children’s information needs using a large-scale query log. The aim of this analysis is twofold: i) To identify...
Sergio Duarte Torres, Djoerd Hiemstra, Pavel Serdy...
IIWAS
2004
13 years 9 months ago
Building the Architecture of A Statistics-Based Query Optimization Solution for Heterogeneous Mediators
Access to different and remote sources with heterogeneous formats is one of the most important challenges in Enterprise Information Integration. Even though there exists an increa...
Justo Hidalgo, Alberto Pan, José Losada, Ma...
SIGIR
2010
ACM
13 years 8 months ago
Learning to rank query reformulations
Query reformulation techniques based on query logs have recently proven to be effective for web queries. However, when initial queries have reasonably good quality, these techniqu...
Van Dang, Michael Bendersky, W. Bruce Croft
WWW
2007
ACM
14 years 8 months ago
U-REST: an unsupervised record extraction system
In this paper, we describe a system that can extract record structures from web pages with no direct human supervision. Records are commonly occurring HTML-embedded data tuples th...
Yuan Kui Shen, David R. Karger