1,720,954 research outputs found
HDFS based Private Cloud Storage Forensics
Get PDFThe demand for cloud computing isincreasing because of the popularity of digitaldevices and the wide use of internet. That makesmalicious users to make crimes. Therefore a studyof digital forensics investigations of cloud storageis necessary. Hadoop Distributed File System(HDFS) has been widely adopted to build cloudstorage as it provides reliable storage and highthroughput access. In this paper, HDFS basedprivate cloud storage is implemented,and digitalforensic framework is proposed which expands oncurrent methodologies. This framework is appliedfor conducting the forensics investigation of cloudstorage. Experiments on private cloud storage areconducted and highlighted a lot of usefulinformation that can be found by analyzingartifacts left by Cloud Storage clients (PC/Smartphone).The case study of the crime of acompany’s staff for the specification document ofbanking system and examination of crime reportsconcerning with cloud storage are presented
Design of MIMO Antenna Array Architecture for Higher Channel Capacity
Get PDFIn many extensive researches, the channel capacity of narrowband multiple-input multiple-output (MIMO) communication systems in indoor Line-of-Sight (LOS) environment is investigated and proved that the LOS signal can get the high channel capacity by designing the antenna arrays. On the other hand, MIMO systems offer significant capacity enhancements in non Line-of-Sight (LOS) environments where rich scattering is present. However, the wireless propagation mechanisms and antenna array orientation should be considered when designing the wireless network to get more precise results and improve the performance. This paper investigates the performance of MIMO system based on two ray ground reflection model. In this system, the LOS signal and the LOS signal with one ground reflected ray can provide the optimum MIMO capacity performance if specific designed antenna arrays are employed at both sides of the communications link. For achieving the optimal MIMO capacity in a LOS environment, the antenna array architecture is considered as a function of the distance between transmitter and receiver, the transmitted and received antennas’ height, the array orientation and the antenna spacing distance. The capacity sensitivity for a number of MIMO architectures with respect to the experimental data and simulation is investigated by using MATLAB programming language
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
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
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
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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