1,721,200 research outputs found
How does cognitive dissonance influence the sunk cost effect? [Corrgendum]
No full textChung SH, Cheng KC. Psychol Res Behav Manag. 2018; 11:37–45. On page 37, Introduction section, 4th sentence reads “Over the past half century, research of the suck cost effect has focused on exploration of probable factors that explain the cause of the sunk cost effect” it should have been “Over the past half century, research of the sunk cost effect has focused on exploration of probable factors that explain the cause of the sunk cost effect”. Read the original article 
Optimal design of a distributed network with a two-level hierarchical structure
No full textThis paper deals with the topological design of a network with a two-level hierarchical structure where the embedded backbone network is full-meshed and the local networks attached to it are of star type. The whole problem, unlike the conventional approaches partitioning it into two subproblems, is directly handled in such a general setting that both a backbone network and local access networks are to be simultaneously determined. We formulate this problem as a quadratic 0-1 programming model, and also propose an equivalent linearized version of the model. Based on the observation that the linearized model is a variant of the well established uncapacitated facility location problem, a dual-based solution procedure is developed and shown to be efficient from computing experiments which were done on a wide variety of problems with up to 50 backbone nodes and 50 user nodes. © 1992
A Fast Handoff Scheme For IP over Bluetooth
No full text0This work was supported by the Korea Science and Engineering Foundation(
KOSEF) through the Advanced Information Technology Research
Center(AITrc
OPTIMAL-DESIGN OF THE 2-LEVEL DISTRIBUTED NETWORK WITH DUAL HOMING LOCAL CONNECTIONS
No full textTo keep abreast of the ever-tightening robustness standards of communication services, we consider the topological design of the two-level network where a sufficient level of structural redundancy is imposed: the embedded backbone subnet is fully meshed and each user node is connected to two different backbone nodes. This complicated design problem for the dual homing full-mesh network is formulated as a 0-1 integer problem so that the key structural characteristics of the single homing network design model are carried over. By applying the usual dual-based solution procedure, we develop ours, which consists of three dual and one primal subprocedures. The computational experiments conducted with a variety of test problems illustrate the effectiveness of the proposed solution approach
A Fast and Updatable IP Address Lookup Scheme
No full textInternational Conference on Computer Networks and Mobile Computing, 2001This work was supported by the Korea Science and Engineering Foundation(
K0SEF) through the Advanced Information Technology Research
Center(A1Trc
Cost-minimizing construction of a unidirectional SHR with diverse protection
No full textThe widespread use of SONET technology makes the self-healing ring (SHR) architecture the most basic building-block in designing a large fiber-optic network which is not only survivable but also cost-effective, We address the design problem of placing a single SONET unidirectional ring with a single gateway hub in a region administered by a community of interest, Introduced for the purpose of further cost-saving in our problem setting is the flexibility that some offices, instead of being included in the ring, can be homed to the ring via two are-disjoint paths, Given the set of offices and potential arcs, the objective is then to determine at the minimum total cost both the ring location and the homing to the ring of its nonmember nodes. We formulate the problem as a mixed integer programming model and develop an efficient solution procedure by devising six improvement heuristics, Extensive computational experiments are conducted with input data instances selected from the data ranges of the real-world environments, The practical value of the solution procedure for network planners is well evidenced by its excellent and consistent performance of quickly generated good-quality solutions over various input data instances
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
Variations 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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