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Dissertations / Theses on the topic 'Online frauds'

Author: Grafiati

Published: 7 June 2025

Last updated: 2 August 2025

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1

Åkerberg, Mathias, and Anders Tibbling. "Säker identitetshantering på internet : Att minimera bedrägerier och öka konsumentens säkerhet och inflytande vid e-handel." Thesis, KTH, Data- och elektroteknik, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-169434.

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Risken att en obehörig part kan komma över och använda en enskild konsuments identitets-handlingar är stor, samtidigt som individens möjlighet att kontrollera hur och när dess iden-titet används är liten. Problemformuleringen som skulle besvaras var hur identitetsstölder och bedrägerier på internet kunde minimeras samtidigt som konsumenten får ett ökat infly-tande över hanteringen av sin identitet. Målsättningen var att centralisera och skapa ett gemensamt förhållningssätt för identitets-hantering på internet till förmån för konsumenterna, och på så vis minimera spridning av egna lösningar för

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2

Alanezi, Faisal. "Perceptions of online fraud and the impact on the countermeasures for the control of online fraud in Saudi Arabian financial institutions." Thesis, Brunel University, 2016. http://bura.brunel.ac.uk/handle/2438/12003.

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This study addresses the impact of countermeasures in the control and prevention of online fraud in Saudi Arabia and the influence of the environmental context. Combatting online fraud is facilitated when the public is fully educated and is aware of its types and of the prevention methods available. People are reliant on the Internet; the possibility of being breached by hackers and fraudsters is growing, especially as socialising, online shopping and banking are carried out through personal computers or mobile devices. Online fraud has been described as an epidemic that has spread to most onl

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3

Kävrestad, Joakim. "DEFINING, CATEGORIZING AND DEFENDING AGAINST ONLINE FRAUD." Thesis, Högskolan i Skövde, Institutionen för informationsteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:his:diva-9732.

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Frauds conducted online are crimes that are and has been increasing in numbers over the last years. Government reports shows that this is the case in Sweden as well as internationally. As of today the Swedish legal systems lacks a definition and categorization approach for online frauds. This thesis aims at developing such definition and a classification scheme that can be used to classify online frauds. Further, this thesis suggests and evaluates a defense mechanism for use in arenas were online frauds are executed. The results bring a definition and classification scheme that has been develo

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4

Rahman, Md Mizanur. "Search Rank Fraud Prevention in Online Systems." FIU Digital Commons, 2018. https://digitalcommons.fiu.edu/etd/3909.

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The survival of products in online services such as Google Play, Yelp, Facebook and Amazon, is contingent on their search rank. This, along with the social impact of such services, has also turned them into a lucrative medium for fraudulently influencing public opinion. Motivated by the need to aggressively promote products, communities that specialize in social network fraud (e.g., fake opinions and reviews, likes, followers, app installs) have emerged, to create a black market for fraudulent search optimization. Fraudulent product developers exploit these communities to hire teams of workers

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5

Eduardo, Ana Teresa Caldinhas. "Internet banking em Portugal: evolução e implicações de uma inovação radical." Master's thesis, Universidade de Évora, 2013. http://hdl.handle.net/10174/16091.

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A internet banking é uma importante inovação que surgiu no setor financeiro e que permite efetuar a maioria das operações bancárias através de uma plataforma ligada à internet, em qualquer lugar e a qualquer hora. Esta dissertação aborda a introdução e evolução da internet banking em Portugal, uma das inovações mais importantes do século XX no setor bancário, que transformou o modelo de negócio e a forma como os bancos interagem com os seus clientes. A sua análise empírica é feita por via da entrevista direta com algumas das principais instituições bancárias portuguesas. As principais conclusõ

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6

Aspvik, Daniel Weenås, and Preben Weenås Aspvik. "Contemporary Online Banking Fraud in Norway : A case study." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-97710.

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Banks are currently battling rising of fraudulent activities as it damages their relationship with their customers. Online banking fraud is decreasing trust and confidence among the customers and decreasing operating performance and increasing cost for the banks. This paper looks at online banking fraud in Norway and answers the research questions (1). How are bank customers attacked through the internet? and (2). How are banks trying to prevent fraudulent attacks against their customers? Interviews and document collection were used for data gathering, and in total, four interviews were conduc

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7

Amaya, de la Pena Ignacio. "Fraud detection in online payments using Spark ML." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-219916.

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Frauds in online payments cause billions of dollars in losses every year. To reduce them, traditional fraud detection systems can be enhanced with the latest advances in machine learning, which usually require distributed computing frameworks to handle the big size of the available data. Previous academic work has failed to address fraud detection in real-world environments. To fill this gap, this thesis focuses on building a fraud detection classifier on Spark ML using real-world payment data. Class imbalance and non-stationarity reduced the performance of our models, so experiments to tackle

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8

Maruatona, Omaru. "Internet banking fraud detection using prudent analysis." Thesis, University of Ballarat, 2013. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/59631.

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The threat posed by cybercrime to individuals, banks and other online financial service providers is real and serious. Through phishing, unsuspecting victims’ Internet banking usernames and passwords are stolen and their accounts robbed. In addressing this issue, commercial banks and other financial institutions use a generically similar approach in their Internet banking fraud detection systems. This common approach involves the use of a rule-based system combined with an Artificial Neural Network (ANN). The approach used by commercial banks has limitations that affect their efficiency in cur

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9

Dan, Gorton. "Aspects of Modeling Fraud Prevention of Online Financial Services." Doctoral thesis, KTH, Transportvetenskap, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176298.

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Banking and online financial services are part of our critical infrastructure. As such, they comprise an Achilles heel in society and need to be protected accordingly. The last ten years have seen a steady shift from traditional show-off hacking towards cybercrime with great economic consequences for society. The different threats against online services are getting worse, and risk management with respect to denial-of-service attacks, phishing, and banking Trojans is now part of the agenda of most financial institutions. This trend is overseen by responsible authorities who step up their minim

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10

Haq, Ikram. "Fraud detection for online banking for scalable and distributed data." Thesis, Federation University Australia, 2020. http://researchonline.federation.edu.au/vital/access/HandleResolver/1959.17/171977.

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Online fraud causes billions of dollars in losses for banks. Therefore, online banking fraud detection is an important field of study. However, there are many challenges in conducting research in fraud detection. One of the constraints is due to unavailability of bank datasets for research or the required characteristics of the attributes of the data are not available. Numeric data usually provides better performance for machine learning algorithms. Most transaction data however have categorical, or nominal features as well. Moreover, some platforms such as Apache Spark only recognizes numeric

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11

Santiago, Gabriel Preti. "Um processo para modelagem e aplicação de técnicas computacionais para detecção de fraudes em transações eletrônicas." Universidade de São Paulo, 2014. http://www.teses.usp.br/teses/disponiveis/45/45134/tde-23052014-144032/.

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Nos últimos anos, tem-se observado um aumento significativo no volume de transações financeiras realizadas pela Internet. Esse crescimento no volume financeiro, associado à fragilidade inerente à ausência de verificações básicas, possíveis somente em transações do mundo físico, tem atraído a atenção de pessoas com o objetivo de obter vantagens financeiras de forma ilícita. Devido aos prejuízos causados pelas fraudes, surgiram empresas de pagamento online com o objetivo de tornar as transações de compra e venda na Internet mais seguras. Essas empresas atuam como um intermediário das transaçõe

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COSTA, Rodrigo Alves. "Uma abordagem para combate da fraude de clique baseada em CAPTCHAs clicáveis." Universidade Federal de Pernambuco, 2016. https://repositorio.ufpe.br/handle/123456789/21012.

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Submitted by Fabio Sobreira Campos da Costa (fabio.sobreira@ufpe.br) on 2017-08-30T12:25:54Z No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Tese-RodrigoAlvesCosta.pdf: 3140049 bytes, checksum: ec578743ee4523a7f146fc645013c2cc (MD5)<br>Made available in DSpace on 2017-08-30T12:25:55Z (GMT). No. of bitstreams: 2 license_rdf: 811 bytes, checksum: e39d27027a6cc9cb039ad269a5db8e34 (MD5) Tese-RodrigoAlvesCosta.pdf: 3140049 bytes, checksum: ec578743ee4523a7f146fc645013c2cc (MD5) Previous issue date: 2016-03-04<br>No atual clima desafiador da economia g

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COSTA, Rodrigo Alves. "Uma abordagem para utilização de CAPTCHAs clicáveis para combater a Click Fraud." Universidade Federal de Pernambuco, 2010. https://repositorio.ufpe.br/handle/123456789/2444.

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Made available in DSpace on 2014-06-12T15:58:17Z (GMT). No. of bitstreams: 2 arquivo3375_1.pdf: 2273716 bytes, checksum: f24a2e926d58fe82c79cef46471ae255 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2010<br>O crescimento da indústria da anúncios online tem criado diversas novas oportunidades em termos de negócios na Internet, tais como conhecimento de marca e comércio online. Neste ambiente de negócio, métricas como visualizações de página, submissões de formulários, cliques, downloads e compras têm o objetivo de originar transaç

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14

Pentzold, Christian [Verfasser], Claudia [Akademischer Betreuer] Fraas, Claudia [Gutachter] Fraas, and Carsten [Gutachter] Winter. "Die Praxis der Online-Kooperation : Praktiken und Institutionen online-medialen Zusammenarbeitens / Christian Pentzold ; Gutachter: Claudia Fraas, Carsten Winter ; Betreuer: Claudia Fraas." Chemnitz : Universitätsbibliothek Chemnitz, 2014. http://d-nb.info/1214302378/34.

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15

Al, Adwan Ahmad. "A cyber-consumer protection framework for prevention of online deceptive advertising." Thesis, Curtin University, 2012. http://hdl.handle.net/20.500.11937/1744.

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Online deceptive advertisements engender distrust among cyber-consumers; we found that such incidents occur in every country in the world. This research addressed issues with online fraud and deceptive advertising related to cyber-consumer transactions (CCT) and online consumer protection. This study includes a framework which provides potential solutions and redress methods in order to minimise online fraud and deceptiveness as well as protecting the cyber-consumer globally.

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16

Atanasova, Dimitrinka. "Obesity frames in British and German online newspapers, 2009-2011." Thesis, University of Leicester, 2015. http://hdl.handle.net/2381/31810.

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Obesity affects people worldwide and in Western Europe, Britain and Germany have among the highest rates. It is thus unsurprising that research has tried to identify its causes. The media have been found to play a role - media use correlates with weight gain. The media can also affect obesity in another way - by featuring news articles which discuss certain aspects of obesity rather than others the media can, like a window, frame these aspects as especially applicable to how obesity should be understood and addressed. Informed by framing theory, this research integrated the study of: 1) news m

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17

Constantinescu, Ana R. "Framing a Kidnapping: Frame Convergence between Online Newspaper Coverage and Reader Discussion Posts of Three Kidnapped Romanian Journalists." Thesis, Virginia Tech, 2006. http://hdl.handle.net/10919/31793.

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In late March 2005, three Romanian journalists were kidnapped by an obscure group of Iraqi militants near Baghdad. Several unusual details about the circumstances of the kidnapping prompted the Romanian media to investigate the speculation regarding the authenticity and motives of this high profile case. This thesis project extends framing theory to incorporate macro-level frames such as cynicism, speculation and metacommunication as dominant reporting styles in this evolving democracy. A systematic content analysis was performed on 255 news stories spanning 75 days from Evenimentul Zilei and

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18

Han, Gang. "Mainland China frames Taiwan online news, event perception and issue attitudes /." Related electronic resource:, 2007. http://proquest.umi.com/pqdweb?did=1404342801&sid=1&Fmt=2&clientId=3739&RQT=309&VName=PQD.

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19

Garrett, Elena Victorovna. "Exploring internet users' vulnerability to online dating fraud| Analysis of routine activities theory factors." Thesis, The University of Texas at Dallas, 2015. http://pqdtopen.proquest.com/#viewpdf?dispub=1583633.

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<p> This paper investigates factors affecting susceptibility to online dating fraud victimization among a sample of 110 Internet users. Demographic factors such as age, income, marital status, employment, education, and country of residence are analyzed. Applicability of Routine Activities Theory to online scams is discussed, and variables such as computer use and proficiency, awareness of online scams, past experience with international dating, and interest in online dating are analyzed. Study differentiates between likelihood and severity of victimization. Findings indicate that factors most

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20

Sun, Yan. "An investigation into financial fraud in online banking and card payment systems in the UK and China." Thesis, Loughborough University, 2011. https://dspace.lboro.ac.uk/2134/8290.

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This doctoral thesis represents an investigation into financial fraud in online banking and card payment systems in the UK and China, involving network security, online financial transactions, internet fraud, card payment systems and individuals' perception of and behaviours towards electronic environments. In contrast to previous studies, the research questions were tackled by survey questionnaires both in the UK and China, with a particular interest in fraud and attempted fraud. The main findings from the UK respondents were that those with higher IT skill and younger respondents are more li

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21

Högberg, Johan. "The effect of effort, control and value frames on online users privacy decision." Thesis, Karlstads universitet, Avdelningen för psykologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-30647.

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A frame refers to a decision maker’s perception of a decision problem. Frames affect outcomes of decisions and are partially controlled by how decision problems are formulated. This study investigated the effect of framing alternatives in a privacy decision as gaining or losing value, need to make an effort and gaining control in an online environment. Also a structure among the many effects found in earlier research concerning privacy in the context of Internet based services was sought. For these purposes two experiments and one survey were conducted at a university in Sweden. The study incl

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22

Hsu, Wei-Yuan Carol. "Online education on campus : a technological frames perspective on the process of technology appropriation." Thesis, London School of Economics and Political Science (University of London), 2003. http://etheses.lse.ac.uk/2657/.

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The advent of computer-mediated communication (CMC) and the Internet has created significant opportunity for online education. Research on this topic has addressed its effectiveness, but as yet little attention has been given to the technology appropriation process in this context. This thesis adopts a social constructivist perspective. To enhance the understanding of online education, the study argues for abandoning the notion of technology as a passive tool and, instead, for considering the contextual issues which surround it. In order to understand how learning and technology appropriation

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Rahman, Mahmudur. "Data Verifications for Online Social Networks." FIU Digital Commons, 2015. http://digitalcommons.fiu.edu/etd/2299.

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Social networks are popular platforms that simplify user interaction and encourage collaboration. They collect large amounts of media from their users, often reported from mobile devices. The value and impact of social media makes it however an attractive attack target. In this thesis, we focus on the following social media vulnerabilities. First, review centered social networks such as Yelp and Google Play have been shown to be the targets of significant search rank and malware proliferation attacks. Detecting fraudulent behaviors is thus paramount to prevent not only public opinion bias, but

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Ahmed, Javed. "A framework for identity fraud management in mobile commerce : a case of online retail organisations in the UK." Thesis, University of Central Lancashire, 2018. http://clok.uclan.ac.uk/25379/.

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Mobile commerce (m-commerce) provides remarkable opportunities for online retail organisations, but also poses the risk of identity-related frauds. Due to the propensity of these frauds through mobile devices, approaches used by retail organisations are ineffective for management of identity frauds in m-commerce. Online retail organisations need a guiding framework for the evaluation of approaches used for identity fraud management. In addition, very little research has been conducted on identity frauds and methods of evaluation of the approaches to combat it in m-commerce. To better understan

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Dargay, Lauren Michelle. "Relationships between elite news frames and frames in user comments: An analysis of terrorism coverage and follow-up comments on the New York Times online." Kent State University / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=kent1469783314.

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Melo, Rogério Alves de. "A influência da percepção de segurança da Internet sobre a intenção de compra de usuários habituais." Universidade Presbiteriana Mackenzie, 2006. http://tede.mackenzie.br/jspui/handle/tede/667.

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Made available in DSpace on 2016-03-15T19:26:29Z (GMT). No. of bitstreams: 1 Rogerio Alves de Melo.pdf: 892369 bytes, checksum: 4af200efff3cb556cc018adff3611897 (MD5) Previous issue date: 2006-03-14<br>This paper deals with the influence of the perception of Internet security when habitual users have the intention of buying something through the Internet. Therefore, a descriptive research was conducted, of which data was collected through a semi-structured questionnaire and a sample composed of 154 university students who are attending the Science of Computation course. The data was consid

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Silva, Bruna da. "Lexicografia eletrônica e semântica de frames: o potencial da noção de frame para o desenvolvimento de dicionários digitais online." Universidade do Vale do Rio dos Sinos, 2018. http://www.repositorio.jesuita.org.br/handle/UNISINOS/7049.

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Submitted by JOSIANE SANTOS DE OLIVEIRA (josianeso) on 2018-05-10T14:57:18Z No. of bitstreams: 1 Bruna da Silva_.pdf: 5892378 bytes, checksum: 48ddb61078d9d34123c8e89cfb4539c4 (MD5)<br>Made available in DSpace on 2018-05-10T14:57:18Z (GMT). No. of bitstreams: 1 Bruna da Silva_.pdf: 5892378 bytes, checksum: 48ddb61078d9d34123c8e89cfb4539c4 (MD5) Previous issue date: 2018-02-27<br>CAPES - Coordenação de Aperfeiçoamento de Pessoal de Nível Superior<br>Este trabalho, que se insere na interface entre Semântica de Frames (FILLMORE, 1982; 1985) e Lexicografia Eletrônica, objetiva investigar a c

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Trager, Vanessa, and Karin Drozd. "Encouraging pro-environmental behaviour amongst Millennials in Online Communities - The role of information and goal-frames on Instagram." Thesis, Malmö universitet, Fakulteten för kultur och samhälle (KS), 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:mau:diva-21624.

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With the aim to reduce the effects of anthropocentric climate change and achieve a more sustainable future, promotion of sustainable individual behaviour is just as essential as driving political and economic change. As social media are experiencing growth in popularity, online communities in which influencers act as opinion leaders are a promising tool to influence behaviour. The objective of this paper was to examine the role of individuals’ pre-existing value structures and the effectiveness of encouraging pro-environmental behaviour amongst the millennial generation on Instagram. The study

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Le, Roux Morgane. "Media and Crisis communication : Do frames align in cases of extraordinary crises? A qualitative analysis of FOCUS online and Bild's coverage of the 2015-Germanwings airplane crash." Thesis, Högskolan för lärande och kommunikation, Högskolan i Jönköping, HLK, Medie- och kommunikationsvetenskap, 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:hj:diva-36739.

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The media and crisis communication of a company operate according to different logics. The media are known to be more entertainment driven, while the company tries to remain trustworthy and publishes information only once it is confirmed. Does this difference in logic and in framing a crisis persist when the crisis occurs without any warning signs?Different crisis life-cycle models exist of which two of them are presented and discussed within this study. Additionally, media framing, media logic theory and crisis communication theory are further going to be clarified in order to identify if the

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Beaudin, Shauna. "An Empirical Study of Authentication Methods to Secure E-learning System Activities Against Impersonation Fraud." NSUWorks, 2016. http://nsuworks.nova.edu/gscis_etd/958.

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Studies have revealed that securing Information Systems (IS) from intentional misuse is a concern among organizations today. The use of Web-based systems has grown dramatically across industries including e-commerce, e-banking, e-government, and e learning to name a few. Web-based systems provide e-services through a number of diverse activities. The demand for e-learning systems in both academic and non-academic organizations has increased the need to improve security against impersonation fraud. Although there are a number of studies focused on securing Web-based systems from Information Sys

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Al-Harby, Fahad M. "Biometric authentication systems for secured e-transactions in Saudi Arabia. An empirical investigation of the factors affecting users' acceptance of fingerprint authentication systems to improve online security for e-commerce and e-government websites in Saudi Arabia." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4415.

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Security is becoming an increasingly important issue for business, and with it comes the need for appropriate authentication; consequently, it is becoming gradually more important to develop secure e-commerce systems. Fraud via the web, identity theft, and phishing are raising concerns for users and financial organisations. In addition, current authentication methods, like passwords, have many problems (e.g. some users write them down, they forget them, or they make them easy to hack). We can overcome these drawbacks by using biometric authentication systems. Biometric systems are being used f

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Ivan, Trevor J. "A Framing Analysis of News Coverage Related to Litigation Connected to Online Student Speech That Originates Off-Campus." Kent State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=kent1365025420.

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Al-Harby, Fahad Mohammed. "Biometric authentication systems for secured e-transactions in Saudi Arabia : an empirical investigation of the factors affecting users' acceptance of fingerprint authentication systems to improve online security for e-commerce and e-government websites in Saudi Arabia." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/4415.

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Security is becoming an increasingly important issue for business, and with it comes the need for appropriate authentication; consequently, it is becoming gradually more important to develop secure e-commerce systems. Fraud via the web, identity theft, and phishing are raising concerns for users and financial organisations. In addition, current authentication methods, like passwords, have many problems (e.g. some users write them down, they forget them, or they make them easy to hack). We can overcome these drawbacks by using biometric authentication systems. Biometric systems are being used f

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Ho, Yun Hsien, and 何芸欣. "The Research of Online Fraud." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/40841274353663717888.

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碩士<br>國立臺北大學<br>法學系<br>94<br>英文摘要 Because of the technological development of the computer and the internet, some crimes can happen online. The most special crime of them is the internet fraud. Due to the particularity of the internet, many countries enact specific laws to control the crimes online. In this paper, I try to figure out what the differences are between the internet fraud and the traditional fraud, and what will attack our laws in existence. Finally, how we should do to solve those problems. This is the most important motive of my paper. In the second chapter, I try to put all kin

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Chang, Wen-Hsi, and 張文熙. "Effective Fraud Detection in Online Auctions." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/36435336490875464863.

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博士<br>淡江大學<br>管理科學學系博士班<br>101<br>In recent years, online auction has become one of the most successful business models; however, the tremendous profit also appeals to many fraudsters. Schemed fraudsters camouflage their malicious intent to distract customers for profit, seriously threatening online auction security. This dissertation aims to develop a set of methods for constructing an effective early fraud detection system. This research proposes various detection methods taking detection cost into account to enhance the practicality of such a system, including the following: (1) To satisfy

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Huan-Yuan, Ko, and 葛煥元. "Detection of Fraud in Online Auction." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/91593616567417148614.

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碩士<br>國立中正大學<br>資訊管理學系<br>91<br>Online Auction frauds have been the major portion of Internet frauds. To investigate such problems within Internet online auctions, this study proposes the following process model. First of all, the real life online auction data was gathered from EBay, the most popular C2C online market. Secondarily, by analyzing the auction participants'' interaction through Social Network Analysis (SNA), the inter-communication network pattern indices will be established. Next, the network indices will be applied as the training inputs of supervised neural network system to co

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Tedim, Margarida de Sousa. "Predicting fraud behaviour in online betting." Master's thesis, 2019. http://hdl.handle.net/10362/59929.

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Project Work presented as the partial requirement for obtaining a Master's degree in Statistics and Information Management, specialization in Information Analysis and Management<br>Fraud isn’t a new issue, there are discussions about this matter since the beginning of commerce. With the advance of the Internet this technique gained strain and became a billion-dollar business. There are many different types of online financial fraud: account takeover; identity theft; chargeback; credit card transactions; etc. Online betting is one of the markets where fraud is increasing every day. In Portuga

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Wu, Chia-Hua, and 吳佳樺. "Detecting fraud in Taiwan Yahoo! online auctions." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/k3au94.

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碩士<br>國立交通大學<br>資訊學院碩士在職專班數位圖書資訊組<br>97<br>The rapid advancement of the Internet has led to the development of many innovative ideas. These innovations, in turn, have changed the ways in which human beings interact with each other. Online auction is one such example. It provides buyers and sellers with a platform for quick exchange of information and trading opportunities; unfortunately, many fraudulent scams have also arisen out of these Internet auctions. 　This thesis attempts to detect frauds on the Yahoo! Auctions platform by using the data classification technique in Data Mining. Transac

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Chen, Shih-Hsuan, and 陳世軒. "Online Auction Fraud Detection based on Model Fusion." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/xqdaeb.

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碩士<br>淡江大學<br>資訊管理學系碩士班<br>107<br>With the maturity of infrastructure such as cash flow and logistics, the booming development of e-commerce is obvious to all. Not only has it become a part of modern life, but the transaction amount has also increased year by year. In 2017, global e-commerce total sales have reached 2.29 trillion US dollars, and its prosperity can be seen. However, in the face of such a large transaction amount, it also attracts a lot of fraudsters to join the e-commerce platform. Among the reported cases, online auction fraud undoubtedly forms a large proportion. There have b

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Liang, He-Siang, and 梁賀翔. "A Real-time Fraud Detection System for Online Auctions." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/76387747637016807722.

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碩士<br>淡江大學<br>資訊管理學系碩士班<br>98<br>This study proposes a real-time online auction fraud detection system named as AntiFraud. As a user executes Firefox to browse commodity pages, AntiFraud will be activated simultaneously to detect the auctioneers for reducing the probability of being defrauded. The kernel of the system consists of detection models by hybrid phased modeling and single phased modeling. The integration of the previous two types of modeling methods is to extract the comprehensive fraudulent features in different phases for achieving the capability of early warning in online auction

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Fonseca, Ana Catarina Cardoso da. "Fraude ao consumidor online: variáveis explicativas da vitimação e reportação." Master's thesis, 2021. https://hdl.handle.net/10216/138209.

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Yao-FengXu and 許耀峯. "fMRI Research of Perceived Risk On Online Consumer Fraud Events-Second-Hand Products On Fraud Events." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/7xe68a.

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碩士<br>國立成功大學<br>資訊管理研究所<br>104<br>With the rapid development of the Internet and the prevalence of hand-held devices, consumer shopping behavior has continued to evolve. In addition, with the 4G era, mobile shopping gradually has become the mainstream e-commerce market. Due to information asymmetry, internet anonymity and the need for mutual trust between sellers and buyers, many consumers will possibly be faced with fraud while shopping online. From the second-hand product purchase intent context, consumers purchase motivation can be divided into four main components, including price, pract

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Yeh, Yi-Hui, and 葉懿慧. "Detecting collusive fraud group in online auction by social network analysis." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/2q823y.

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碩士<br>國立中央大學<br>資訊管理研究所<br>96<br>Due to the great profit and low entrance cost of online auction, there are a lot of online fraud cases in online auction sites. One of the most common fraud method is to establish several auction account, and using these account to have transactions with each other then increase their reputation. The research focus on this kind of the collusive fraud group and propose a process to detect collusive group in order to complete the flaws of reputation system in the online auction. We divide the process into five steps: preprocessing, classification, merge, filter,

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(9175607), Subia Ansari. "FROM THE SCAMMER PERSPECTIVE: PREDISPOSITIONS TOWARDS ONLINE FRAUD MOTIVATION AND RATIONALIZATION." Thesis, 2020.

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<p>Cybercrime and online scams are rampant in today’s tech-savvy world. In the past, scammers relied heavily on emails to contact potential victims but today, the presence and widespread usage of social networking platforms and e-commerce businesses has increased the availability of potential victims and made them easily accessible. It could be assumed that since unsuspecting users seek various products or services online - rentals, booking trips, seeking jobs, dating, it makes them easy targets for scammers yet, it is not just individual users who suffer from fraud, but organizations and inst

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Liu, Chen-Hsiang, and 劉禎翔. "Feature Construction and Feature Selection for Fraud Detection in Online Auctions." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/95538867983603763549.

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碩士<br>淡江大學<br>資訊管理學系碩士班<br>101<br>Because of big commercial opportunity in online auctions, there are more and more fraudulent incidents. It is also difficult to let consumers aware fraudulent transactions. In the face of fraud in online auction, many scholars have proposed some fraud detection methods instead of reminding consumers to be careful. Generally, the success rate of fraud detection has a big relationship with the fraud detection feature set. Most of scholars designed their own feature set depends on experiences. In order to improving success rate of fraud detection and generating o

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"Cost-Sensitive Selective Classification and its Applications to Online Fraud Management." Doctoral diss., 2019. http://hdl.handle.net/2286/R.I.53598.

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abstract: Fraud is defined as the utilization of deception for illegal gain by hiding the true nature of the activity. While organizations lose around $3.7 trillion in revenue due to financial crimes and fraud worldwide, they can affect all levels of society significantly. In this dissertation, I focus on credit card fraud in online transactions. Every online transaction comes with a fraud risk and it is the merchant's liability to detect and stop fraudulent transactions. Merchants utilize various mechanisms to prevent and manage fraud such as automated fraud detection systems and manual trans

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李明儒. "The Law & Management of Internet Fraud - A Study of Online Auction." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/04413884849100477620.

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碩士<br>國立交通大學<br>管理科學系所<br>93<br>The increasing numbers of the Internet users and E-commerce transactions have increased cyber crime and tort cases. Online auction fraud case is one kind of them. How to provide a safe E-commerce environment for online auction users is the main subject of this study. This study adopted the method that similar to case study to introduce foreign and domestic fraud cases. By the results of this study, we conclude that the possible strategies of the consumers, online auction sites and government could adopt when they confront online auction fraud. The results show

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KU, ZHIH-HAO, and 辜致豪. "Online Questionnaire System Design and Implement Combine Blockchian to Prevent Data Fraud." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/y75jaq.

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碩士<br>國立高雄科技大學<br>資訊管理系<br>107<br>Questionnaire is a survey method that commonly used in all walks of life. Questionnaire is simple to spread and popularize, it also can collect data from multiple people at the same time. Nowadays, Internet and technology are different from the past, online questionnaire platform makes it simpler than before. Social sciences usually use questionnaire to collect data from people, then analyze the data to make society improving. However, there is some academic fraud. They tamper data to reach their purpose and publish the fraudulent result to public. If these st

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Yang, Ching-Hung, and 楊清泓. "Internet Auction Fraud Accounts Online Real-Time Anomaly Detection System Of The Building." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/92268020576506842956.

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碩士<br>元智大學<br>資訊管理學系<br>99<br>Internet auction is the most popular trading model in recent years. With the enlarged internet bandwidth and the more and more prevailing internet access facilities, the internet auction market is also growing up year by year, and besides the auctioned items are all-inclusive. At the same time, for the popularity of auction market, the deceptions have also never stopped. Therefore, how to prevent the fraud of internet auction has confronted and tested the internet auction platform providers. Longing for the effectively reduced deception in internet auction, nowada

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LU, MING-SHAN, and 呂明珊. "The Win-Win Analysis Of Broker Operating P2P Online Shopping fraud Mutual Insurance." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/q2b3qg.

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碩士<br>實踐大學<br>財務金融學系碩士班<br>106<br>With the increase in the income of the people, the development of the domestic insurance industry has become increasingly mature. The average per capita premium expenditure has grown rapidly year by year. Taiwan's insurance density ranks ninth in the world, surpassing the United States and the United Kingdom. It can be seen that the development of the Taiwan insurance market has been complete. However, the number of domestic insurance broker companies has continued to decrease every year, and the premium income and market share have continued to decline. This

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