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Welcome to web page of the International Association for Fuzzy-Set Management and Economy (SIGEF)

The facilities which SIGEF make available to its members are many and varied. The most important is be the organization of meetings, conferences, talks and similar activities allowing members to air their concerns, and to present ideas and work in progress. The international journal of the Association, FUZZY ECONOMIC REVIEW, plays a leading role by bringing together the most important projects devised by specialist and offering them a fundamentally practical opening into the business world, in pursuit of university-business cooperation which is both necessary and beneficial to both sides.

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LOFTI ZADEH PASSED AWAY

On September 7th, Lofti Zadeh, creator and promoter of Fuzzy-Sets theory and honorary editor of the Fuzzy Economic Review, passed away. His work and his legacy is the forerunner of...

09-09-2017

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XIX SIGEF CONGRESS

For the information about XIX SIGEF Congress click here  

12-12-2016

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WELCOME TO THE NEW WEB OF SIGEF

This is the new web of SIGEF. We hope you find it useful. Please, if you have some questions or suggestions about it, don’t hesitate to contact us.

07-07-2015

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Last Fuzzy Economic Review

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FUGA, A FUZZY GREEDY ALGORITHM FOR REDISTRICTING IN MEXICO

Redistricting is the redrawing of the boundaries of legislative districts for electoral purposes in such a way that the generated districts fulfill federal and state requirements such as contiguity, population...

Number 2, 2017

BONFERRONI DISTANCES WITH HYBRID WEIGHTED DISTANCE AND IMMEDIATE WEIGHTED DISTANCE

The aim of the paper is to develop new aggregation operators using Bonferroni means, ordered weighted averaging (OWA) operators and some measures of distance. We introduce the Bonferroni Hybrid-weighted distance...

Number 2, 2017

CHANGING STRATEGIES USING FUZZY SETS RELATIONS – A DIAGNOSTICS APPROACH

The traditional Second Order Change (SOC) model contains a set of equations that allow us to determine the possible strategy change using probability. In this article, we propose a simpler...

Number 2, 2017

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