This paper presents an overview of the field of recommender systems and describes the current generation of recommendation methods that are usually classified into the following three main categories: content-based, collaborative, and hybrid…
Electronic Commerce
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ONLINE READERS ARE IN NEED OF TOOLS TO HELP THEM COPE with the mass of content available on the World-Wide Web. In traditional media, readers are provided assistance in making selections. This includes both implicit assistance in the form of…
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Evidence suggests that consumers often hesitate to transact with Web-based vendors because of uncertainity about vendor behavior or the perceived risk of having personal information stolen by hackers. Trust plays a central role in helping consumers…
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Common user- and business-requirements demand an integrated view on the multitude of available information resources that are processed in a variety of heterogeneous information systems. Therefore, the research field of semantic integration which is…
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Institution-based trust is a buyers perception that effective third-party institutional mechanisms are in place to facilitate transaction success. This paper integrates sociological and economic theories about institutionbased trust to propose that…
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This study examines the persuasive effect and awareness effect of online user reviews on movies' daily box office performance. In contrast to earlier studies that take online user reviews as an exogenous factor, we consider reviews both influencing…
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In this paper, we present Google, a prototype of a large-scale search engine which makes heavy use of the structure present in hypertext. Google is designed to crawl and index the Web efficiently and produce much more satisfying search results than…
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Ten years ago, we presented the DeLone and McLean Information Systems (IS) Success Model as a framework and model for measuring the complex-dependent variable in IS research. In this paper, we discuss many of the important IS success research…
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Valid measurement scales for predicting user acceptance of computers are in short supply. Most subjective measures used in practice are unvalidated, and their relationship to system usage is unknown. The present research develops and validates new…
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Information technology (IT) acceptance research has yielded many competing models, each with different sets of acceptance determinants. In this paper, we (1) review user acceptance literature and discuss eight prominent models, (2) empirically…
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LAMS WZiEU project began in 2006. The biggest challenge of adopting an e-learning environment was the methodological and electronic development of chosen parts of the Computer Science subject and transferring didatic content delivered by traditional…
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Recommender systems have been evaluated in many, often incomparable, ways. In this article, we review the key decisions in evaluating collaborative filtering recommender systems: the user tasks being evaluated, the types of analysis and datasets…
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Personalized recommender systems are confronting great challenges of accuracy, diversification and novelty, especially when the data set is sparse and lacks accessorial information, such as user profiles, item attributes and explicit ratings.…
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Conceptual Business Process Modelling Languages (BPMLs) express certain aspects of processes (e.g. activities, roles, interactions, data, etc.) and address different application areas. To evaluate BPMLs, a general framework is required. Although a…
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I analyze the equilibria of a game based on the ad auction used by Google and Yahoo. This auction is closely related to the assignment game studied by ShapleyShubik, DemangeGaleSotomayer and Roth Sotomayer. However, due to the special structure of…
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Click fraud is the practice of deceptively clicking on search ads with the intention of either increasing third-party website revenues or exhausting an advertiser's budget. Search advertisers are forced to trust that search engines detect and…
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With the passage of the Sarbanes-Oxley Act in the United States in 2002, and an ever-increasing corporate focus on ensuring prudent returns on technology investments, the notion of IT governance became a major issue for both business practitioners…
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This paper aims to predict consumer acceptance of e-commerce by propos- ing a set of key drivers for engaging consumers in on-line transactions. The primary con- structs for capturing consumer acceptance of e-commerce are intention to transact and…
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