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» Computing Iceberg Queries Efficiently
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WWW
2005
ACM
14 years 10 months ago
User-centric Web crawling
Search engines are the primary gateways of information access on the Web today. Behind the scenes, search engines crawl the Web to populate a local indexed repository of Web pages...
Sandeep Pandey, Christopher Olston
SSDBM
1999
IEEE
140views Database» more  SSDBM 1999»
14 years 2 months ago
An Infrastructure for Scalable Parallel Multidimensional Analysis
Multidimensional Analysis in On-Line Analytical Processing (OLAP), and Scientific and statistical databases (SSDB) use operations requiring summary information on multi-dimensiona...
Sanjay Goil, Alok N. Choudhary
WWW
2008
ACM
14 years 10 months ago
Improving relevance judgment of web search results with image excerpts
Current web search engines return result pages containing mostly text summary even though the matched web pages may contain informative pictures. A text excerpt (i.e. snippet) is ...
Zhiwei Li, Shuming Shi, Lei Zhang
PVLDB
2008
130views more  PVLDB 2008»
13 years 9 months ago
Analyzing and revising data integration schemas to improve their matchability
Data integration systems often provide a uniform query interface, called a mediated schema, to a multitude of data sources. To answer user queries, such systems employ a set of se...
Xiaoyong Chai, Mayssam Sayyadian, AnHai Doan, Arno...
CORR
2010
Springer
180views Education» more  CORR 2010»
13 years 7 months ago
Shortest path problem in rectangular complexes of global nonpositive curvature
Abstract. CAT(0) metric spaces constitute a far-reaching common generalization of Euclidean and hyperbolic spaces and simple polygons: any two points x and y of a CAT(0) metric spa...
Victor Chepoi, Daniela Maftuleac