1,721,748 research outputs found
Social Honeypot for Humans: Luring People Through Self-managed Instagram Pages
No full textSocial Honeypots are tools deployed in Online Social Networks (OSN) to attract malevolent activities performed by spammers and bots. To this end, their content is designed to be of maximum interest to malicious users. However, by choosing an appropriate content topic, this attractive mechanism could be extended to any OSN users, rather than only luring malicious actors. As a result, honeypots can be used to attract individuals interested in a wide range of topics, from sports and hobbies to more sensitive subjects like political views and conspiracies. With all these individuals gathered in one place, honeypot owners can conduct many analyses, from social to marketing studies. In this work, we introduce a novel concept of social honeypot for attracting OSN users interested in a generic target topic. We propose a framework based on fully-automated content generation strategies and engagement plans to mimic legit Instagram pages. To validate our framework, we created 21 self-managed social honeypots (i.e., pages) on Instagram, covering three topics, four content generation strategies, and three engaging plans. In nine weeks, our honeypots gathered a total of 753 followers, 5387 comments, and 15739 likes. These results demonstrate the validity of our approach, and through statistical analysis, we examine the characteristics of effective social honeypots.Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public.Cyber Securit
Blockchain-Based Verifiable Credentials for Virtual Teams Management in the Metaverse
No full textIn recent years, classic working patterns have changed due to the pandemic situation and the need of new generations of workers for a better work-life balance. Among the changes is the spread of remote working, for example through video conference meetings for team work. However, video conference meetings offer only a partially immersive experience.This paper investigates on a particular approach to remote team work that makes use of the combination of blockchain, metaverse and Verifiable Credentials (VC), focusing attention on the attribution of access credentials to virtual work spaces.Metaverse virtual systems can be more interesting, gratifying, and immersive than video conferences for participating in and managing virtual teams. Blockchain-based metaverse systems, such as Decentraland, identify a user by his blockchain address, which can store NFTs or other types of virtual property. Verifiable Credentials allow for role attribution in virtual team formation, with the team organizer acting as the issuer and the virtual room acting as the verifier. The proposed approach involves the use of smart contracts for registering and confirming verifiable credentials, directly from the Decentraland virtual room. The Decentraland virtual room can prevent or allow a user to access a work area based on their VC. Under the proposed approach, the costs of creating the VCs are charged to the issuer, but all verification processes are free
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
Deuxième vague de "pénétration du savoir occidental" et métamorphose idéologique en Chine
No full textRunsheng Wang, Xiaofeng Zhong. Deuxième vague de "pénétration du savoir occidental" et métamorphose idéologique en Chine. In: Perspectives chinoises, n°7, 1992. pp. 37-41
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
Hf ji gao K jie dian bo mo de wei guan jie gou he dian zi jie gou yan jiu
No full textWang Xiaofeng = Hf基高K介电薄膜的微观结构和电子结构研究 / 王晓峰.Thesis (M.Phil.)--Chinese University of Hong Kong, 2006.Includes bibliographical references (leaves 62-67).Text in English; abstracts in English and Chinese.Wang Xiaofeng = Hf ji gao K jie dian bo mo de wei guan jie gou he dian zi jie gou yan jiu / Wang Xiaofeng.Table of Contents --- p.ivList of Figures --- p.viiList of Tables --- p.xChapter 1 --- Introduction --- p.1Chapter 2 --- Background --- p.3Chapter 2.1 --- Ideal high-k materials --- p.3Chapter 2.1.1 --- Current problems with Si02 and possible solutions --- p.3Chapter 2.1.2 --- Requirements on the high-k gate dielectric materials --- p.6Chapter 2.2 --- Recent results on high-k gate dielectrics --- p.8Chapter 2.2.1 --- A1203 --- p.8Chapter 2.2.2 --- Y203 and La203 --- p.9Chapter 2.2.3 --- Hf02 and Zr02 --- p.10Chapter 2.2.4 --- Pseudo-binary Alloys --- p.10Chapter 3 --- Experimental and Instrumentation --- p.13Chapter 3.1 --- Transmission electron microscopy (TEM) --- p.13Chapter 3.2 --- Transmission electron diffraction (TED) --- p.15Chapter 3.3 --- Electron energy loss spectroscopy (EELS) --- p.16Chapter 4 --- Data Analysis Methodology --- p.22Chapter 4.1 --- Diffraction analysis --- p.22Chapter 4.1.1 --- Ring ratio analysis for polycrystal diffraction pattern --- p.23Chapter 4.1.2 --- RDF analysis for amorphous materials --- p.24Chapter 4.2 --- Eliminating the plural scattering in EELS --- p.29Chapter 4.2.1 --- Removal of plural scattering from inner-shell edges --- p.30Chapter 4.2.2 --- Fourier-Ratio deconvolution --- p.30Chapter 4.2.3 --- "Demonstration using Co L2,3 core-loss spectrum" --- p.31Chapter 5 --- The Temperature Effect on the Microstructure of HfO2 Films --- p.37Chapter 5.1 --- Experimental --- p.38Chapter 5.2 --- Phase identification and crystallinity analysis of the Hf02 thin films --- p.38Chapter 5.2.1 --- Phase and crystallinity analysis from TEDs --- p.38Chapter 5.2.2 --- The phase and crystallinity evolution with the growth temperature --- p.39Chapter 5.3 --- The local symmetry of Hf atom in the films --- p.40Chapter 6 --- Effect of A1 Addition on the Microstructure and Electronic Structure of HfO2 Films --- p.43Chapter 6.1 --- Experimental --- p.44Chapter 6.2 --- RDF analysis of HfAlO films --- p.45Chapter 6.3 --- The local symmetry of Hf atom in the HfAlO films --- p.46Chapter 6.4 --- Loss functions of HfAlO films --- p.48Chapter 7 --- Comparison of A1 and Y Addition on the Microstructure of Hf02 Films --- p.56Chapter 7.1 --- Experimental --- p.57Chapter 7.2 --- Phase identification and crystallinity analysis of the alloy thin films --- p.57Chapter 7.2.1 --- Phase and crystallinity analysis from TEDs --- p.57Chapter 7.2.2 --- The phase and crystallinity evolution with the Y and A1 incorporation --- p.58Chapter 7.3 --- The local symmetry of Hf atom in the alloy thin films --- p.59Chapter 8 --- Conclusion --- p.61Bibliography --- p.6
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
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