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EUSFLAT
2009
118views Fuzzy Logic» more  EUSFLAT 2009»
14 years 7 months ago
Operational Semantics for a Fuzzy Logic Programming System with Defaults and Constructive Answers
In this paper we present the operational semantics of RFuzzy, a fuzzy Logic Programming framework that represents thruth values using real numbers from the unit interval. RFuzzy pr...
Hannes Strass, Susana Muñoz-Hernánde...
INFOCOM
2012
IEEE
13 years 1 days ago
On the construction of data aggregation tree with minimum energy cost in wireless sensor networks: NP-completeness and approxima
—In many applications, it is a basic operation for the sink to periodically collect reports from all sensors. Since the data gathering process usually proceeds for many rounds, i...
Tung-Wei Kuo, Ming-Jer Tsai
ICDE
2007
IEEE
155views Database» more  ICDE 2007»
15 years 3 months ago
Atomicity for P2P based XML Repositories
Over the years, the notion of transactions has become synonymous with providing fault-tolerance, reliability and robustness to database systems. However, challenges arise when we ...
Debmalya Biswas, Il-Gon Kim
TKDE
2012
253views Formal Methods» more  TKDE 2012»
13 years 50 min ago
Horizontal Aggregations in SQL to Prepare Data Sets for Data Mining Analysis
—Preparing a data set for analysis is generally the most time consuming task in a data mining project, requiring many complex SQL queries, joining tables and aggregating columns....
Carlos Ordonez, Zhibo Chen 0002
ICDT
1999
ACM
133views Database» more  ICDT 1999»
15 years 1 months ago
A Framework for the Investigation of Aggregate Functions in Database Queries
Abstract. In this paper we present a new approach for studying aggregations in the context of database query languages. Starting from a broad de nition of aggregate function, we ad...
Luca Cabibbo, Riccardo Torlone