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» Modeling betweenness for question answering
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DEXAW
1998
IEEE
126views Database» more  DEXAW 1998»
15 years 8 months ago
An Extended Query Reformulation Technique Using Materialized Views
Materialized views offer opportunities for significant performance gain in query evaluation by providing fast access to pre-computed data. The question of when and how to use a ma...
Jae-young Chang, Sang-goo Lee
RE
2007
Springer
15 years 10 months ago
Goal-Oriented Conceptual Database Design
We present details of a goal-oriented process for database requirements analysis. This process consists of a number of steps, spanning the spectrum from high-level stakeholder goa...
Lei Jiang, Thodoros Topaloglou, Alexander Borgida,...
FMICS
2006
Springer
15 years 8 months ago
"To Store or Not To Store" Reloaded: Reclaiming Memory on Demand
Behrmann et al. posed the question whether "To Store or Not To Store" [1] states during reachability analysis, in order to counter the effects of the well-known state spa...
Moritz Hammer, Michael Weber
145
Voted
WSDM
2009
ACM
178views Data Mining» more  WSDM 2009»
15 years 11 months ago
User Browsing Graph: Structure, Evolution and Application
This paper focuses on ‘user browsing graph’ which is constructed with users’ click-through behavior modeled with Web access logs. User browsing graph has recently been adopt...
Yiqun Liu, Min Zhang, Shaoping Ma, Liyun Ru
COCO
2009
Springer
131views Algorithms» more  COCO 2009»
15 years 11 months ago
A Multi-Round Communication Lower Bound for Gap Hamming and Some Consequences
—The Gap-Hamming-Distance problem arose in the context of proving space lower bounds for a number of key problems in the data stream model. In this problem, Alice and Bob have to...
Joshua Brody, Amit Chakrabarti