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Reasons For Fuzzy Sets

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1 Introduction
1.1 Definition
With the development of culture, communication has become more and more important. In order to understand each other , most people focus on how to express themselves efficiently, they use language which is clear and certain. It seems that in this way the meaning can be expressed accurately, while fuzzy words must be avoided. But a lot of facts have proved that the uses of fuzzy words is very common in our daily communication.
There are a lot of scholars and linguists try to find out the definition of fuzziness. In 1965,the American scientist L.A.Zadeh published his famous article “Fuzzy Sets” on the “Information and Control Magazine”. He is the first to raise the theory of “fuzzy sets”, with the help of this theory, he studied the fuzzy problems of different aspects. …show more content…

There are different reasons for fuzzy language, but most linguists can not search for the consensus. In communications, we have to admit that the reasons for fuzzy language are complicated.
1.3.1 Objective Reasons
In objective world , different things, phenomena and features compose the continuum, it is hard to have a clear borderlines. Since the nature has fuzzy phenomena, language can also be fuzzy. For example, color and time in nature are continua, people have to divide them into several stages, “in the small hours”, “morning”, “noon”, “afternoon”, “dusk”, “evening”, “night” and so on, there is a transition area between two stages, which leads to the uncertainty of borderline. These words that can express this category is also fuzzy.
This world is full of mysteries, which makes thoughts complicated and language fuzzy.
1.3.2 Subjective Reasons
People’s cognition is based on the partition of things. Nationality’s partition of things is related with the features, cognition and the demand of communication. Different nationality have different way to know and divide things, such as semantic field about

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