Transactions on Rough Sets VI [electronic resource] : Commemorating the Life and Work of Zdzisław Pawlak, Part I / edited by James F. Peters, Andrzej Skowron, Ivo Düntsch, Jerzy Grzymała-Busse, Ewa Orłowska, Lech Polkowski.

Contributed Papers -- Propositional Logics from Rough Set Theory -- Intuitionistic Rough Sets for Database Applications -- An Experimental Comparison of Three Rough Set Approaches to Missing Attribute Values -- Pawlak’s Landscaping with Rough Sets -- A Comparison of Pawlak’s and Skowron–Stepaniuk’s Approximation of Concepts -- Data Preparation for Data Mining in Medical Data Sets -- A Wistech Paradigm for Intelligent Systems -- The Domain of Acoustics Seen from the Rough Sets Perspective -- Rule Evaluations, Attributes, and Rough Sets: Extension and a Case Study -- The Impact of Rough Set Research in China: In Commemoration of Professor Zdzis?aw Pawlak -- A Four-Valued Logic for Rough Set-Like Approximate Reasoning -- On Representation and Analysis of Crisp and Fuzzy Information Systems -- On Partial Covers, Reducts and Decision Rules with Weights -- A Personal View on AI, Rough Set Theory and Professor Pawlak -- Formal Topology and Information Systems -- On Conjugate Information Systems: A Proposition on How to Learn Concepts in Humane Sciences by Means of Rough Set Theory -- Discovering Association Rules in Incomplete Transactional Databases -- On Combined Classifiers, Rule Induction and Rough Sets -- Approximation Spaces in Multi Relational Knowledge Discovery -- Finding Relevant Attributes in High Dimensional Data: A Distributed Computing Hybrid Data Mining Strategy -- A Model PM for Preprocessing and Data Mining Proper Process -- Monographs -- Lattice Theory for Rough Sets.

Volume VI of theTransactions on Rough Sets (TRS) commemoratesthe life and 1 work of Zdzis law Pawlak (1926-2006) . His legacy is rich and varied. Professor Pawlak’s research contributions have had far-reaching implications inasmuch as his worksarefundamental in establishing newperspectives for scienti?c research in a wide spectrum of ?elds. From a very early age, Zdzis law Pawlakdevoted his life to scienti?c research. The pioneering work by Prof. Pawlak included research on the design of c- puters, information retrieval, modeling con?ict analysis and negotiation, genetic grammars, and molecular computing. His research led to the introduction of knowledge representation systems during the early 1970s and the discovery of rough sets during the early 1980s. Added to that was Prof. Pawlak’s lifelong interest in painting, photography, and poetry. During his lifetime, he nurtured worldwide interest in approximation,approximate reasoning, and rough set the- 2 ory and its applications . Evidence of the in?uence of Prof. Pawlak’s work can be seen in the growth in the rough-set literature that now includes over 4000 3 publications by more than 1600 authors in the rough set database as well as 4 the growth and maturity of the International Rough Set Society. Numerous 5 biographies of Zdzis law Pawlak have been published . This volume of the TRS presents papers that re?ect the profound in?uence of a number of research initiatives by Zdzis law Pawlak.