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RSCTC
2004
Springer
200views Fuzzy Logic» more  RSCTC 2004»
14 years 1 months ago
A Comparative Study of Formal Concept Analysis and Rough Set Theory in Data Analysis
The theory of rough sets and formal concept analysis are compared in a common framework based on formal contexts. Different concept lattices can be constructed. Formal concept ana...
Yiyu Yao
RSCTC
2004
Springer
148views Fuzzy Logic» more  RSCTC 2004»
14 years 1 months ago
Towards Missing Data Imputation: A Study of Fuzzy K-means Clustering Method
In this paper, we present a missing data imputation method based on one of the most popular techniques in Knowledge Discovery in Databases (KDD), i.e. clustering technique. We comb...
Dan Li, Jitender S. Deogun, William Spaulding, Bil...
RSCTC
2004
Springer
110views Fuzzy Logic» more  RSCTC 2004»
14 years 1 months ago
A Graded Applicability of Rules
We address the problem of rough applicability of rules within the framework of approximation spaces. The graded applicability of a rule for an object of an approximation space, int...
Anna Gomolinska
RSCTC
2004
Springer
150views Fuzzy Logic» more  RSCTC 2004»
14 years 1 months ago
Extracting Protein-Protein Interaction Sentences by Applying Rough Set Data Analysis
illion abstracts. Problem. How to find sentences that talk about protein-protein interactions? Example (Non-Interaction Sentence) All our data are consistent with models in which ...
Filip Ginter, Tapio Pahikkala, Sampo Pyysalo, Jorm...
RSCTC
2004
Springer
164views Fuzzy Logic» more  RSCTC 2004»
14 years 1 months ago
Rough Set Methodology in Clinical Practice: Controlled Hospital Trial of the MET System
Abstract. Acute abdominal pain in childhood is a common but diagnostically challenging problem facing Emergency Department personnel. Experienced physicians use a combination of ke...
Ken Farion, Wojtek Michalowski, Roman Slowinski, S...
RSCTC
2004
Springer
215views Fuzzy Logic» more  RSCTC 2004»
14 years 1 months ago
On the Evolution of Rough Set Exploration System
Abstract. We present the next version (ver. 2.1) of the Rough Set Exploration System – a software tool featuring a library of methods and a graphical user interface supporting va...
Jan G. Bazan, Marcin S. Szczuka, Arkadiusz Wojna, ...
RSCTC
2004
Springer
134views Fuzzy Logic» more  RSCTC 2004»
14 years 1 months ago
Rough Set Methods in Approximation of Hierarchical Concepts
Abstract. Many learning methods ignore domain knowledge in synthesis of concept approximation. We propose to use hierarchical schemes for learning approximations of complex concept...
Jan G. Bazan, Sinh Hoa Nguyen, Hung Son Nguyen, An...
RSCTC
2004
Springer
121views Fuzzy Logic» more  RSCTC 2004»
14 years 1 months ago
On the Correspondence between Approximations and Similarity
Abstract. This paper focuses on the use and interpretation of approximate databases where both rough sets and indiscernibility partitions are generalized and replaced by approximat...
Patrick Doherty, Andrzej Szalas
ROCAI
2004
Springer
14 years 1 months ago
ROC Optimisation of Safety Related Systems
Abstract. Many safety related and critical systems warn of potentially dangerous events; for example the Short Term Conflict Alert (STCA) system warns of airspace infractions betw...
Jonathan E. Fieldsend, Richard M. Everson
ROCAI
2004
Springer
14 years 1 months ago
Learning Mixtures of Localized Rules by Maximizing the Area Under the ROC Curve
We introduce a model class for statistical learning which is based on mixtures of propositional rules. In our mixture model, the weight of a rule is not uniform over the entire ins...
Tobias Sing, Niko Beerenwinkel, Thomas Lengauer