International Journal of Man-Machine Studies
Self-organization and associative memory: 3rd edition
Self-organization and associative memory: 3rd edition
Constructive and algebraic methods of the theory of rough sets
Information Sciences: an International Journal
A comparative study of fuzzy sets and rough sets
Information Sciences: an International Journal
Relational interpretations of neighborhood operators and rough set approximation operators
Information Sciences—Informatics and Computer Science: An International Journal
TVOO: a temporal versioned object-oriented data model
Information Sciences: an International Journal
A new measure of temporal consistency for derived objects in real-time database systems
Information Sciences—Informatics and Computer Science: An International Journal
Unsupervised Rough Set Classification Using GAs
Journal of Intelligent Information Systems
Computers and Industrial Engineering
Proceedings of the International Workshop on Temporal Databases: Recent Advances in Temporal Databases
Rough Clustering: An Alternative to Find Meaningful Clusters by Using the Reducts from a Dataset
TSCTC '02 Proceedings of the Third International Conference on Rough Sets and Current Trends in Computing
Information Granules in Distributed Environment
RSFDGrC '99 Proceedings of the 7th International Workshop on New Directions in Rough Sets, Data Mining, and Granular-Soft Computing
Temporal granulation and its application to signal analysis
Information Sciences—Informatics and Computer Science: An International Journal
Model-Based Clustering and Visualization of Navigation Patterns on a Web Site
Data Mining and Knowledge Discovery
A framework for diagnosing changes in evolving data streams
Proceedings of the 2003 ACM SIGMOD international conference on Management of data
WI '03 Proceedings of the 2003 IEEE/WIC International Conference on Web Intelligence
Category cluster discovery from distributed WWW directories
Information Sciences—Informatics and Computer Science: An International Journal - special issue: Knowledge discovery from distributed information sources
Spatio-temporal querying in video databases
Information Sciences—Informatics and Computer Science: An International Journal
Neural networks handling sequential patterns
Information Sciences—Informatics and Computer Science: An International Journal - Mining stream data
Comparison of clustering methods for clinical databases
Information Sciences—Informatics and Computer Science: An International Journal - Mining stream data
Interval Set Clustering of Web Users with Rough K-Means
Journal of Intelligent Information Systems
Expanding self-organizing map for data visualization and cluster analysis
Information Sciences: an International Journal - Special issue: Soft computing data mining
Web Intelligence and Agent Systems
Detecting change in data streams
VLDB '04 Proceedings of the Thirtieth international conference on Very large data bases - Volume 30
Expert Systems with Applications: An International Journal
Mining spatial association rules in image databases
Information Sciences: an International Journal
Hierarchical clustering of mixed data based on distance hierarchy
Information Sciences: an International Journal
Developing recommender systems with the consideration of product profitability for sellers
Information Sciences: an International Journal
Improved Classification for Problem Involving Overlapping Patterns
IEICE - Transactions on Information and Systems
Information Sciences: an International Journal
A new method for ranking changes in customer's behavioral patterns in department stores
Proceedings of the 11th International Conference on Electronic Commerce
A hybrid of sequential rules and collaborative filtering for product recommendation
Information Sciences: an International Journal
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Temporal data mining is the application of data mining techniques to data that takes the time dimension into account. This paper studies changes in cluster characteristics of supermarket customers over a 24 week period. Such an analysis can be useful for formulating marketing strategies. Marketing managers may want to focus on specific groups of customers. Therefore they may need to understand the migrations of the customers from one group to another group. The marketing strategies may depend on the desirability of these cluster migrations. The temporal analysis presented here is based on conventional and modified Kohonen self organizing maps (SOM). The modified Kohonen SOM creates interval set representations of clusters using properties of rough sets. A description of an experimental design for temporal cluster migration studies including, data cleaning, data abstraction, data segmentation, and data sorting, is provided. The paper compares conventional and non-conventional (interval set) clustering techniques, as well as temporal and non-temporal analysis of customer loyalty. The interval set clustering is shown to provide an interesting dimension to such a temporal analysis.