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VLDB
1994
ACM
91views Database» more  VLDB 1994»
15 years 6 months ago
On Spatially Partitioned Temporal Join
This paper presents an innovative partitionbased time join strategy for temporal databases where time is represented by time intervals. The proposed method maps time intervals to ...
Hongjun Lu, Beng Chin Ooi, Kian-Lee Tan
VLDB
2001
ACM
121views Database» more  VLDB 2001»
15 years 6 months ago
Weaving Relations for Cache Performance
Relational database systems have traditionally optimzed for I/O performance and organized records sequentially on disk pages using the N-ary Storage Model (NSM) (a.k.a., slotted p...
Anastassia Ailamaki, David J. DeWitt, Mark D. Hill...
ICPR
2008
IEEE
16 years 3 months ago
Relative advantage of touch over vision in the exploration of texture
Texture segmentation is an effortless process in scene analysis, yet its mechanisms have not been sufficiently understood. A common assumption in most current approaches is that t...
Choonseog Park, Yoon Ho Bai, Yoonsuck Choe
IJCAI
1997
15 years 3 months ago
A Causal Time Ontology for Qualitative Reasoning
Aiming at explicit description of temporal meaning of causal relations generated by qualitative reasoning systems, this article proposes a causal time ontology which defines a se...
Yoshinobu Kitamura, Mitsuru Ikeda, Riichiro Mizogu...
TCS
1998
15 years 2 months ago
Axiomatisation of Functional Dependencies in Incomplete Relations
Incomplete relations are relations which contain null values, whose meaning is \value is at present unknown". Such relations give rise to two types of functional dependency (...
Mark Levene, George Loizou