1,720,960 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe 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
Get PDF“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
Object-Oriented Modeling of DIPRM System for E-Commerce Transaction
Get PDFThe ease of creation, modification, distribution, compatibility and above all, a large market opportunity drive the creator and the consumer to move towards the digital age to create and use their IP digitally called Digital Intellectual Property (DIP). But the DIP infringements in E-commerce drives us to design a unified generic model that can manage Digital Intellectual Property involving rules, regulations, practices, business models etc. In this scenario an attempt has been made here to design a well-structured prototype that brings all components of the E-commerce system into a common platform with a view to offer a model of a unified integrated ecommerce system. We have tried a maiden attempt to use UML to design the model of such system, which is the recent trend of software engineering practice. This allows developing a very flexible model that facilitates maintainability, reusability, portability and other Object Oriented features inherent in the new E-commerce scenario. Keywords: DIPRM, DRM, E-commerce, UML, OO
On Designing a Secure E-Commerce Transaction Management System – A UML Based Approach
Get PDFE-commerce gained popularity as a sophisticated transaction system for buying and selling of products and services efficiently through Internet. Due to lack of privacy and security, customers are unwilling to participate in E-commerce transaction system. To combat such inefficiency in transaction of E-commerce and to regain the customers trust an attempt is made here to design a prototype of a secure E-commerce transaction system that brings all components of the E-commerce into a common platform to offer a model of a unified integrated E-commerce system using DRM. In the proposed system, the transaction manager generates single use token consisting information about the customer, merchant, product, and payment amount etc. and thereafter wrapped as a DRM package. The advantages of using such token are, after a single use the token will expire, which minimizes the possible loss in the transaction, also, as the token wrapped as a DRM package, therefore only the intended user and the specified application software can open the DRM package using special key. The application, thereafter, will take care of the rights imposed on the ‘token’ and expires itself after the single use. To design the model of the proposed system we have tried to use Unified Modeling Language (UML), which allows developing a very flexible model that facilitates maintainability, reusability, portability and other Object Oriented software engineering features inherent in the E-commerce transaction system. Keywords: E-commerce, Object, Object Oriented Modeling (OOM), UML, DRM
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe 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
Detection of Profile-injection Attacks in Recommender Systems Using Outlier Analysis
No full textAbstractE-Commerce recommender systems are vulnerable to different types of profile-injection attacks where a number of fake user profiles are inserted into the system to influence the recommendations made to the users. In this paper, we have proposed three strategies of detecting such attacks with the help of outlier analysis. In all these strategies, the attack-profiles are considered as outliers in the user rating dataset. Firstly, we have used Partition around Medoid (PAM) clustering algorithm in dete cting the attack-profiles. An incremental version of the PAM algorithm has been applied and tested for evaluating the performance of the system in identifying the attack profiles when they come into the system. Experiments show that though PAM is able to d etect attack profiles with larger number of filler items very well, a percentage of attack profiles with smaller number of filler items is not included in outlier clusters-they are included in large clusters. Secondly, we have applied a PAM-based outlier detection algorithm to find these attack profiles in large clusters. Finally, an angle based outlier detection strategy is used for fin ding attack profiles in the database under attack
Dispelling the Myths Behind First-author Citation Counts
Get PDFWe 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
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