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WWW
2007
ACM
16 years 8 months ago
Altering document term vectors for classification: ontologies as expectations of co-occurrence
In this paper we extend the state-of-the-art in utilizing background knowledge for supervised classification by exploiting the semantic relationships between terms explicated in O...
Meenakshi Nagarajan, Amit P. Sheth, Marcos Kawazoe...
SAS
2009
Springer
212views Formal Methods» more  SAS 2009»
16 years 8 months ago
The Causal Graph Revisited for Directed Model Checking
Directed model checking is a well-established technique to tackle the state explosion problem when the aim is to find error states in large systems. In this approach, the state spa...
Martin Wehrle, Malte Helmert
VLDB
2007
ACM
152views Database» more  VLDB 2007»
16 years 7 months ago
Structured Materialized Views for XML Queries
The performance of XML database queries can be greatly enhanced by rewriting them using materialized views. We study the problem of rewriting a query using materialized views, whe...
Andrei Arion, Ioana Manolescu, Véronique Be...
ICDE
2010
IEEE
472views Database» more  ICDE 2010»
16 years 7 months ago
TransDec: A Spatiotemporal Query Processing Framework for Transportation Systems
Abstract-- In this paper, we present TransDec, an end-toend data-driven system which enables spatiotemporal queries in transportation systems with dynamic, real-time and historical...
Ugur Demiryurek, Farnoush Banaei Kashani, Cyrus Sh...
CVPR
2010
IEEE
16 years 3 months ago
Clustering Dynamic Textures with the Hierarchical EM Algorithm
The dynamic texture (DT) is a probabilistic generative model, defined over space and time, that represents a video as the output of a linear dynamical system (LDS). The DT model ...
Antoni Chan, Emanuele Coviello, Gert Lanckriet