Abstract—The Imperative reasons for problems faced by the people with Disabilities (PWDs) using combined overlap block fuzzy cognitive maps (COBFCMS) defined by W.B Vasantha Kandasamy is analyzed in this paper. The combined overlap block FCM’s defined in this method become effective when the number of concepts can be grouped and are large in numbers. In this paper we analyzed the problems and are large in number. In this paper we analyzed the problem and find out the reasons how it has happened to people. This paper has six sections, first section gives the information about development of fuzzy cognitive maps, second section gives preliminaries of fuzzy cognitive maps, and combined overlap block fuzzy cognitive maps, in section three we explain about the problem faced by PWDs, in section four we explain the method of determining their hidden pattern, in section five, we give the concept of the problem, final section gives the conclusion based on our studies. Index Terms—FCMS, COBFCMS, disablity. I. INTRODUCTION Political scientist R. Axelrod [1] introduced cognitive maps for representing social scientific knowledge and describing the methods that are used for decision making in social and political systems. Then B. Kosko [2] enhanced the power of cognitive maps considering fuzzy values for the concepts of the cognitive map and fuzzy degrees of interrelationships between concepts. FCMs can successfully represent knowledge and human experience, introduce concept to represent the essential elements and cause & effect relationships among the concepts to model the behavior of any system. It is a very convenient, simple and powerful tool, which is used in numerous fields such as social economic and medical etc. The purpose of study is to identify risk groups, The 8 types of disability (by birth not due to disease or accidents or due to war) mentioned in order are as follows: (1) Blindness, (2) Aborted embryo (3) Hump back (lying with the body disposed in a crooked position) (4) Dwarf (5) Dumbness (speech impaired) (6) Deafness, (hearing impaired) (7) No proper development of bones (8) Bewilderment of mind (Not in a position to stand up; these person‟s mind never grows) (Reference: Pura nanuru poem 28).Now we just mention about how the social and psychological problems of the PWDs were studied and analysed using mathematical and fuzzy linguistic models. At the outset the authors who are not experts in the technicality of naming the disability may mention the type of disability in a common way, say, as „blind‟ instead of “impaired vision” or so; likewise „deaf‟ instead of‟ hearing impaired‟ and so on. This is by no means to offend or make one feel bad; it is completely the inability of the authors to use proper technical terms. Secondly, the PWDs, most of them physical, is analysed using statistical methods and fuzzy models by the authors. The mental retardation or mental disability is analysed using fuzzy linguistic models. We have categorized the mental disability into five types mainly for our fuzzy linguistic working and they are not in any way medically or technically assigned. The data was collected from interviews from the caretakers of the mentally disabled children / adults, from the homes run by NGO‟s / charity organization in / near Chennai. Then we used experts. The experts were caretakers or parents or persons closely associated with the mentally disabled people. The suggestion / conclusions are from the experts and we are not very sure whether it is true or false. For, it is what they feel or they have experienced while taking care of these children/ adults. This only is the first hand experience who have been with these mentally retarded children for over a decade or so. Most of the information gathered is from their practical knowledge. Also when we enquired a few experts in the field some of them said the mental disability cannot be easily detected by birth and lots of research ought to be done in this direction .They also said it was incurable. However our study mainly concentrates on the social and the psychological problems faced by the parents/care givers / relatives of the mentally retarded / PWD, as even today the birth of such children is only thought of as a curse on the family. So the public shun them and their family and they are socially stigmatized. “How to overcome this situation?” is our study. Moreover, the data is an unsupervised one and also there is uncertainty in the concepts. Hence fuzzy tools alone has the capacity to analyze these concepts. Hence it is chosen here. II. PRELIMINARIES Fuzzy cognitive maps (FCMs) are more applicable when the data in the first place is an unsupervised one. The FCMs work on the opinion of experts. FCMs model the worlds as a collection of classes and causal relation between classes. [3] Definition 2.1: An FCM is a directed graph with concepts like policies, events etc as nodes and causalities as edges. It represents causal relationship between concepts. A Study on Problems Faced by the People with Disabilities (PWDs) Using Combined Overlap Block Fuzzy Cognitive Maps (COBFCMS) A. Praveen Prakash, A. Rajkumar, and N. Jose Parvin Praveena International Journal of Computer Theory and Engineering, Vol. 5, No. 4, August 2013 735 DOI: 10.7763/IJCTE.2013.V5.786 Manuscript received November 24, 2012; revised January 31, 2013. A. Praveen Prakash and A. Rajkumar are with the Hindustan University, Padur, chennai 603103, India (e-mail: arajkumar@hindustanuniv.ac.in). N. Jose Parvin Praveena is with the K.C.G College of Technology, Chennai, India.