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ICIP
1997
IEEE
15 years 11 months ago
An Optimization Approach to Unsupervised Hierarchical Texture Segmentation
In this paper we introduce a novel optimization framework for hierarchical data clustering and apply it to the problem of unsupervised texture segmentation. The proposed objective...
Thomas Hofmann, Jan Puzicha, Joachim M. Buhmann
TAP
2010
Springer
126views Hardware» more  TAP 2010»
15 years 2 months ago
DyGen: Automatic Generation of High-Coverage Tests via Mining Gigabytes of Dynamic Traces
Unit tests of object-oriented code exercise particular sequences of method calls. A key problem when automatically generating unit tests that achieve high structural code coverage ...
Suresh Thummalapenta, Jonathan de Halleux, Nikolai...
SIGSOFT
2009
ACM
15 years 4 months ago
MSeqGen: object-oriented unit-test generation via mining source code
An objective of unit testing is to achieve high structural coverage of the code under test. Achieving high structural coverage of object-oriented code requires desirable method-ca...
Suresh Thummalapenta, Tao Xie, Nikolai Tillmann, J...
ICDE
2002
IEEE
140views Database» more  ICDE 2002»
15 years 11 months ago
Efficient Filtering of XML Documents with XPath Expressions
We propose a novel index structure, termed XTrie, that supports the efficient filtering of XML documents based on XPath expressions. Our XTrie index structure offers several novel...
Chee Yong Chan, Pascal Felber, Minos N. Garofalaki...
JMIV
2010
87views more  JMIV 2010»
14 years 8 months ago
Infinite Photography: New Mathematical Model for High-Resolution Images
A new mathematical image model is introduced using the photographic process as the starting point. Images are represented as infinite sequences of photons allowing analysis at arb...
Tapio Helin, Matti Lassas, Samuli Siltanen