1,720,983 research outputs found
A Flow Approach to Bankruptcy Problems
No full textIn this note we represent a classical bankruptcy problem as a standard flow problem on a simple network and implement some known division rules from the bankruptcy literature via suitable cost functions in the related minimum cost flow problem
Bonus-Malus Approach to Project Management
No full textThis paper concentrates on the management of delayed projects charged with penalty costs and of expedited projects rewarded with bonuses, based on an activity graph description of the projects. We propose a two-stage heuristic procedure to assist project managers to determine “fair” shares of penalties or compensations for agents involved when information regarding the project’s schedule and its actual execution is available. Incentives for better performance play a key role in this procedure, which combines a “bonus-malus” approach with a rationing approach. In the first stage, activities’ deviations from the schedule are computed using heuristic algorithms which implement incentives for better performance according to two alternative scenarios. In the second stage, the deviations of activities computed according to the chosen scenario are adjusted using well-known rules from the literature on rationing problems. A new family of compensations-penalties solutions, called Mutual Help Solutions, is introduced and illustrated
Cooperazione e competizione nello sfruttamento di una risorsa rinnovabile
Full text linkIn this paper we propose a static model describing the commercial exploitation of a common property renewable resource by a population of agents. Players can cooperate or compete; cooperators maximize the utility of their group while defectors maximize their own profit. Agents aren't assumed to be divided into the two groups from the beginning; by solving the static game we obtained the best response function of i-th player without making other agents positions. Then, the Nash equilibria we calculated point out how different strategies - all the players cooperate, all the players compete or players can be divided into cooperators and defectors - can coexist.Resource Exploitation, Game theory
Determinazione di strategie nello sfruttamento di una risorsa rinnovabile
Full text linkIn this paper we propose a static model describing the commercial exploitation of a common property renewable resource by a population of agents. Players can cooperate or compete; cooperators maximize the utility of their group while defectors maximize their own profit. The model provide for one utility function which can be used for every kind of player. Agents aren't assumed to be divided into the two groups from the beginning; by solving the static game we obtained the best response function of i-th player without making other agents positions. Then, the Nash equilibria we calculated point out how different strategies - all the players cooperate, all the players compete or players can be divided into cooperators and defectors - can coexist. In any case we have analyzed, it's possible to observe how the total harvest depend on renewable resource stock, and how it influences agents' positions. Keywords Resource Exploitation, Game Theory
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Operations research for patient-centered health care delivery --Proceedings of the XXXVI International ORAHS Conference
No full textVariations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
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