1,721,104 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
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
An evaluation framework for semantic search in P2P networks
No full textWe address the problem of evaluating peer-to-peer information retrieval (P2PIR) systems with semantic overlay structure. The P2PIR community lacks a commonly accepted testbed, such as TREC is for the classic IR community. The problem with using classic test collections in a P2P scenario is that they provide no realistic distribution of documents and queries over peers, which is, however, crucial for realistically simulating and evaluating semantic overlays. On the other hand, document collections that can be easily distributed (e.g. by exploiting categories or author information) lack both queries and relevance judgments. Therefore, we propose an evaluation framework, which provides a strategy for constructing a P2PIR testbed, consisting of a prescription for content distribution, query generation and measuring effectiveness without the need for human relevance judgments. It can be used with any document collection that contains author information and document relatedness (e.g. references in scientific literature). Author information is used for assigning documents to peers, relatedness is used for generating queries from related documents. The ranking produced by the P2PIR system is evaluated by comparing it to the ranking of a centralised IR system using a new evaluation measure related to mean average precision. The combination of these three things – realistic content distribution, realistic and automated query generation and distribution, and a meaningful and flexible evaluation measure for rankings – offers an improvement over existing P2PIR evaluation approaches
Extending ERP Systems in SMEs into Personalized E-Commerce Applications
No full textPersonalization of E-Commerce applications is an issue that is gaining increasing importance with the advancing maturity of such systems. There is already E-Commerce software on the market offering integrated E-Shop and personalization functions. However, the available software is too time-consuming and expensive for SMEs. With this in mind we saw a need to investigate the potential for personalization from the particular angle of SMEs. This paper presents the results of a research project about personalization of E-Commerce applications run by SMEs. The project started with an empirical study about the current state of personalization in E-Commerce applications run by SMEs. The findings encouraged us to start the development of a project method for the development of standard personalization components in ERP systems. The method builds on a personalization framework which forms the basis for the requirement analysis and the consecutive extension of ERP-II systems
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
Herausforderungen und Chancen der Internationalisierung für mittelständische Softwareunternehmen in Deutschland
Full text linkDie Internationalisierung ist für Softwareunternehmen im deutschen Mittelstand einerseits ein Muss, um den Anforderungen international ausgerichte-ter Kunden gerecht zu werden, anderseits eröffnet sie der Softwarebranche die Chance, aktiv neue Märkte zu erschließen. Anhand ausgewählter Beispiele deutscher Softwareunternehmen, die bereits international tätig sind, werden in die-ser Studie auf Basis von Experteninterviews Treiber, Strategien und Umsetzungs-ansätze der Internationalisierung vor dem Hintergrund der jeweiligen Eigenschaf-ten der Softwareprodukte dargestellt. Die Ergebnisse zeigen erste Zusammenhänge auf und bieten wichtige Ansatzpunkte für weitere Forschung im Bereich der Internationalisierung von Softwareunternehmen
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