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WAIM
2004
Springer
15 years 2 months ago
Learning-Based Top-N Selection Query Evaluation over Relational Databases
A top-N selection query against a relation is to find the N tuples that satisfy the query condition the best but not necessarily completely. In this paper, we propose a new method ...
Liang Zhu, Weiyi Meng
AUSDM
2006
Springer
158views Data Mining» more  AUSDM 2006»
15 years 1 months ago
What Types of Events Provide the Strongest Evidence that the Stock Market is Affected by Company Specific News?
The efficient market hypothesis states that an efficient market immediately incorporates all available information into the price of the traded entity. It is well established that...
Calum Robertson, Shlomo Geva, Rodney Wolff
71
Voted
DIWEB
2004
14 years 11 months ago
Distributed Query Processing in P2P Systems with Incomplete Schema Information
The peer-to-peer (P2P) paradigm has emerged recently, mainly by file sharing systems like Napster or Gnutella and in terms of scalable distributed data structures. Because of the d...
Marcel Karnstedt, Katja Hose, Kai-Uwe Sattler
64
Voted
IIS
2004
14 years 10 months ago
Query Selectivity Estimation via Data Mining
Estimating the result size of a join is an important query optimization problem as it determines the choice of a good query evaluation strategy. Yet, there are few efficient techni...
Jarek Gryz, Dongming Liang
SIGIR
2002
ACM
14 years 9 months ago
Term-specific smoothing for the language modeling approach to information retrieval: the importance of a query term
This paper follows a formal approach to information retrieval based on statistical language models. By introducing some simple reformulations of the basic language modeling approa...
Djoerd Hiemstra