JingTao Yao

A Ten-year Review of Granular Computing

JingTao Yao

Department of Computer ScienceUniversity or Regina, Regina, Canada

jtyao@cs.uregina.cahttp://www2.cs.uregina.ca/~jtyao

pp.734-739

2A Ten-year Review of Granular ComputingJingTao Yao

Granular Computing

• Solving complex problems with granules.• Zadeh: a basis for computing with words.• Yao YY: a triangle: philosophical level thinking, m

ethodological level problem solving, computational information processing

• Bargiella and Pedrycz: human centered information processing: semantical data transformation, non-computational verification of information abstractions

3A Ten-year Review of Granular ComputingJingTao Yao

Basic Concepts

• Granules• Granulation

– Decomposition: coarser => finer – Construction: finer=> coarser

• Relationship• Covering, partition

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Past, Present, and Future

• Standing on shoulders of giants• To know and to be known.• Find representative granular articles• Know what is going on• Understand trends• Databases

– ISI Web of Science– IEEE Digital Library

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Search

• Time: Data by April 29, 2007• Terms

– Granular computing– Information granularity– Information granulation – Granular computation

• From Title, Abstract, Key Words

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Granular Computing Abbreviations

• GrC• Grc • GC• Gc• gc

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Citation Each Year

98 99 00 01 02 03 04 05 06

Citations 3 7 15 33 43 76 99 120 169

Papers 5 5 15 24 37 55 74 102 130

Citation/Paper

0.60 1.67 1.00 1.38 1.16 1.38 1.34 1.18 1.30

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Highly Cited Papers

11A Ten-year Review of Granular ComputingJingTao Yao

Highly Cited Papers

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Highly Cited Papers

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Research Trends and Interaction

• Scientific growth is a diffusion process (Crane 1972: Invisible colleges)

• In the areas where researchers are aware of each other's existence, the curve of cumulative growth of publications and of authors entering the field follows a logistic pattern.– More new authors– Interacting with other domain– More publications

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Granular Computing Trend

• More linear like growth– Growth slowly– Less new authors (? did not check)

• Interaction– Fuzzy (6/15)– Rough (7/15)– Remaining (3/15)

• Hidden Fuzzy (2/3)• Hidden Rough (1/3)

– Others ? (interval computing, concept lattice, …) Runge-Kutta

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Concluding Remarks

• Use standard term in Title, Abstract , and Keywords. (to be known)

– Granular Computing, GrC– Searchable from bibliographic databases

• GrC researc grows healthily but still have long way to go -> need more interaction

• Interact with other domain– GrC shares many thoughts with other domain especially in

philosophical level– Come (Invite people from other domains, WI-IAT-BIBM) – Go (Attend, submit GrC papers to other conferences, journals)

• New blood

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New Book

• Novel Development of Granular Computing: Applications for Advanced Human Reasoning and Soft Computation

• Edited By JingTao Yao• Will be published by IGI Global

– Full Chapter Due on March 15, 2008• http://www2.cs.uregina.ca/~jtyao/GrC

JingTao Yao

A Ten-year Review of Granular Computing

JingTao Yao

Department of Computer Science University or Regina, Canada

jtyao@cs.uregina.cahttp://www2.cs.uregina.ca/~jtyao

21A Ten-year Review of Granular ComputingJingTao Yao