32,737 research outputs found

    The Consistent Value: Potentializability and Equivalent Relations on Fuzzy Games

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    Based on several equivalent relations, this paper is aimed to axiomatize the family of all solutions that admit a potential in the framework of fuzzy transferable-utility (TU) games. Further, several axiomatic results of the consistent value are also proposed by applying these equivalent relations

    Modularity functions maximization with nonnegative relaxation facilitates community detection in networks

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    We show here that the problem of maximizing a family of quantitative functions, encompassing both the modularity (Q-measure) and modularity density (D-measure), for community detection can be uniformly understood as a combinatoric optimization involving the trace of a matrix called modularity Laplacian. Instead of using traditional spectral relaxation, we apply additional nonnegative constraint into this graph clustering problem and design efficient algorithms to optimize the new objective. With the explicit nonnegative constraint, our solutions are very close to the ideal community indicator matrix and can directly assign nodes into communities. The near-orthogonal columns of the solution can be reformulated as the posterior probability of corresponding node belonging to each community. Therefore, the proposed method can be exploited to identify the fuzzy or overlapping communities and thus facilitates the understanding of the intrinsic structure of networks. Experimental results show that our new algorithm consistently, sometimes significantly, outperforms the traditional spectral relaxation approaches

    Bisemivalues for bicooperative games

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    We introduce bisemivalues for bicooperative games and we also provide an interesting characterization of this kind of values by means of weighting coefficients in a similar way as it was given for semivalues in the context of cooperative games. Moreover, the notion of induced bisemivalues on lower cardinalities also makes sense and an adaptation of Dragan’s recurrence formula is obtained. For the particular case of (p, q)-bisemivalues, a computational procedure in terms of the multilinear extension of the game is given.Peer ReviewedPostprint (author's final draft

    The interaction between parents and children as a relevant dimension of child well being. The case of Italy

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    This paper aims at measuring the functionings of social interaction, a relevant dimension in the description and conceptualisation of child well being by using the capability approach. In this paper we deal with a special dimension of this capability that involves the capability of interaction between parents and child. We propose a fuzzy expert system to measure this capability. To apply the model we use a data set based on a matched data source of ISTAT (Italian National Statistical Office 1998) multipurpose survey on family and on children condition in Italy to recover information on children’s education, the socio-demographic structure of their families, child care provided by relatives and parents according to the type of activities in which the children are involved and Bank of Italy Survey on household income and wealth year 2000 (SHIW00). This is a first step of a more complex system allowing for a richer set of indicators on capabilities in order to measure child well being.

    The Interaction between Parents and Children as a Relevant Dimension of Child Well Being. The Case of Italy

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    This paper aims at measuring the functionings of social interaction, a relevant dimension in the description and conceptualisation of child well being by using the capability approach. In this paper we deal with a special dimension of this capability that involves the capability of interaction between parents and child. We propose a fuzzy expert system to measure this capability. To apply the model we use a data set based on a matched data source of ISTAT (Italian National Statistical Office 1998) multipurpose survey on family and on children condition in Italy to recover information on children’s education, the socio-demographic structure of their families, child care provided by relatives and parents according to the type of activities in which the children are involved and Bank of Italy Survey on household income and wealth year 2000 (SHIW00). This is a first step of a more complex system allowing for a richer set of indicators on capabilities in order to measure child well being.Child Well Being, Fuzzy Expert System, Capabilities

    Caregiver Assessment Using Smart Gaming Technology: A Preliminary Approach

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    As pre-diagnostic technologies are becoming increasingly accessible, using them to improve the quality of care available to dementia patients and their caregivers is of increasing interest. Specifically, we aim to develop a tool for non-invasively assessing task performance in a simple gaming application. To address this, we have developed Caregiver Assessment using Smart Gaming Technology (CAST), a mobile application that personalizes a traditional word scramble game. Its core functionality uses a Fuzzy Inference System (FIS) optimized via a Genetic Algorithm (GA) to provide customized performance measures for each user of the system. With CAST, we match the relative level of difficulty of play using the individual's ability to solve the word scramble tasks. We provide an analysis of the preliminary results for determining task difficulty, with respect to our current participant cohort.Comment: 7 pages, 1 figures, 6 table
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