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» On the semantics and evaluation of top-k queries in probabil...
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ICDT
2007
ACM
126views Database» more  ICDT 2007»
14 years 1 months ago
Combining Incompleteness and Ranking in Tree Queries
Abstract. In many cases, users may want to consider incomplete answers to their queries. Often, however, there is an overwhelming number of such answers, even if subsumed answers a...
Benny Kimelfeld, Yehoshua Sagiv
CLEF
2007
Springer
14 years 2 months ago
MIRACLE at GeoCLEF Query Parsing 2007: Extraction and Classification of Geographical Information
This paper describes the participation of MIRACLE research consortium at the Query Parsing task of GeoCLEF 2007. Our system is composed of three main modules. First, the Named Geo...
Sara Lana-Serrano, Julio Villena-Román, Jos...
WWW
2010
ACM
14 years 2 months ago
LCA-based selection for XML document collections
In this paper, we address the problem of database selection for XML document collections, that is, given a set of collections and a user query, how to rank the collections based o...
Georgia Koloniari, Evaggelia Pitoura
SIGMOD
2008
ACM
131views Database» more  SIGMOD 2008»
14 years 8 months ago
Orion 2.0: native support for uncertain data
Orion is a state-of-the-art uncertain database management system with built-in support for probabilistic data as first class data types. In contrast to other uncertain databases, ...
Sarvjeet Singh, Chris Mayfield, Sagar Mittal, Suni...
XSYM
2005
Springer
81views Database» more  XSYM 2005»
14 years 1 months ago
MemBeR: A Micro-benchmark Repository for XQuery
XQuery is a feature-rich language with complex semantics. This makes it hard to come up with a benchmark suite which covers all performance-critical features of the language, and a...
Loredana Afanasiev, Ioana Manolescu, Philippe Mich...