1,720,973 research outputs found
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
Multi-objective optimisation modelling for Green Supply Chain Management
No full textThe current global economic crisis and the growing common concern over environmental issues are pushing
companies to look for the minimisation of both cost and environmental impact of their operations along the whole
supply chain. In recent years, one of the most interesting challenges is the development of effective methods and
approaches able to support companies in defining strategies and actions suitable to meet multiple strategic purposes.
Aim of this paper is to present a decision support system designed for assisting companies in design and management
of their supply chain network. This tool is based on a multi-objective optimisation model for the integrated design of
a fresh food supply network under the main aim of the minimisation of both network global cost and environmental
impact. A Mixed Integer Linear Programming (MILP) model computes economic costs and environmental impact
drivers for a multi-product, multi-layer, multi-period capacitated location-allocation optimisation problem. Problem
variables deal with strategic and tactical decisions e.g. facility location, route assignment and packaging type selection.
The model considers two different objective functions. The former is aimed at the minimisation of economic costs
related to supply chain activities, e.g. production, shipment, storage, end-of life treatment. The latter objective function
considers the same activities but deals with the minimisation of their global environmental impact along the supply
chain. A set of feasibility constraints complete the proposed model to guarantee the solution applicability. Demand
satisfaction, production and distribution capacity limits are included into the model.
Finally, an application of the proposed model on a realistic food supply chain network is proposed. Output of model
application is the definition of the Pareto frontier of optimal solutions, which can be used as support to the supply
chain decision-maker. Results highlight the existence of a trade-off between economic and environmental costs in
supply chain management
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
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Multi-objective assignment strategy for warehouses served by automatic storage and retrieval system
No full textStorage assignment strategies play a crucial role to increase the warehouse efficiency and to reduce the inbound logistic costs. This paper presents a linear programming model to optimise the load assignment within an Automated Storage and Retrieval System (AS/RS) adopting a multi-objective perspective. Three different issues are considered: The time efficiency for the S/R operations; the overall energy consumption for the S/R activities; and the risk of the rack overturn and collapse during dangers like seismic events. The model is applied to a realistic case study to demonstrate its effectiveness and strengths. Copyright © FSB, Zagreb, Croatia, 2014
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
koamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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