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MFDBS
1991
125views Database» more  MFDBS 1991»
13 years 11 months ago
A Relational Algebra for Complex Objects Based on Partial Information
We study an approach to relational databases which treats relations not as subsets of a Cartesian product but as subsets of some domain { a partially ordered space of descriptions...
Leonid Libkin
RSCTC
2004
Springer
144views Fuzzy Logic» more  RSCTC 2004»
14 years 25 days ago
Approximation Spaces and Information Granulation
Abstract. In this paper, we discuss approximation spaces in a granular computing framework. Such approximation spaces generalise the approaches to concept approximation existing in...
Andrzej Skowron, Roman W. Swiniarski, Piotr Synak
CSE
2009
IEEE
13 years 10 months ago
Where Information Searches for You: The Visible Past Ubiquitous Knowledge Environment for Digital Humanities
— Visible Past proposes a new class of interdisciplinary learning, documenting, knowledge production, and discovery experiences that are anchored in space and time indicators. Th...
Sorin Adam Matei, Eric A. Wernert, Travis Faas
OIR
2010
101views more  OIR 2010»
13 years 5 months ago
Supporting information access in e-learning by integrating digital libraries and ontology
Purpose – The purpose of this paper is to examine the integration of digital library (DL) technologies with ontology-based knowledge representation in providing semantic rich in...
Daqing He, Yefei Peng, Ming Mao, Dan Wu
ICDM
2009
IEEE
161views Data Mining» more  ICDM 2009»
13 years 5 months ago
Understanding Climate Change Patterns with Multivariate Geovisualization
Climate change has been a challenging and urgent research problem for many related research fields. Climate change trends and patterns are complex, which may involve many factors a...
Hai Jin, Diansheng Guo