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作者:Telang, R; Rajan, U; Mukhopadhyay, T
作者单位:Carnegie Mellon University; University of Michigan System; University of Michigan; Carnegie Mellon University
摘要:The Internet search engine market has seen a proliferation of entrants over the past few years. Whereas Yahoo was the early market leader, there has been entry by both lower-quality engines and higher-quality ones (such as Google). Prior work on quality differentiation requires that low-quality products have low prices in order to survive in a market with high-quality products. However, the price charged to users of search engines is typically zero. Therefore, consumers do not face a tradeoff ...
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作者:Doll, WJ; Deng, XD; Raghunathan, TS; Torkzadeh, G; Xia, WD
作者单位:University System of Ohio; University of Toledo; Oakland University; Nevada System of Higher Education (NSHE); University of Nevada Reno
摘要:Although user satisfaction is widely used by researchers and practitioners to evaluate information system success, important issues related to its meaning and measurement across population subgroups have not been adequately resolved. To be most useful in decision-making, instruments like end-user computing satisfaction (EUCS), which are designed to evaluate system success, should be robust. That is, they should enable comparisons by providing equivalent measurement across diverse samples that ...
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作者:Sinha, AP; May, JH
作者单位:University of Wisconsin System; University of Wisconsin Madison; Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh; Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh
摘要:In this study, we conduct an empirical analysis of the performance of five popular data mining methods-neural networks, logistic rearession, linear discriminant analysis, decision trees, and nearest neighbor-on two binary classification problems from the credit evaluation domain. Whereas most studies comparing data mining methods have employed accuracy as a performance measure, we argue that, for problems such as credit evaluation, the focus should be on minimizing misclassification cost. We f...
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作者:Zhu, K
作者单位:University of California System; University of California Irvine
摘要:This study seeks to assess the business value of e-commerce capability and information technology (IT) infrastructure in the context of electronic business at the firm level. Grounded in the IT business-value literature and enhanced by the resource-based theory of the firm, we developed a research framework in which both the main effects and the interaction effects of e-commerce and IT on firm performance were tested. Within this theoretical framework, we formulated several hypotheses. We then...
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作者:Bhargava, HK; Sundaresan, S
作者单位:University of California System; University of California Davis; Pennsylvania Commonwealth System of Higher Education (PCSHE); Pennsylvania State University; Pennsylvania State University - University Park
摘要:This paper demonstrates that quality-contingent pricing is a useful mechanism for mitigating the negative effects of quality uncertainty in e-commerce and information technology services. Under contingency pricing of an information good or service, the firm preannounces a rebate for poor performance. Consumers determine performance probabilities using publicly available historical performance data, and the firm may have additional private information with respect to its future probability dist...
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作者:Spangler, S; Kreulen, JT; Lessler, J
作者单位:International Business Machines (IBM); IBM USA; General Motors
摘要:We present a novel system and methodology for generating and then browsing multiple taxonomies over a document collection. Taxonomies are generated using a broad set of capabilities, including meta data, key word queries, and automated clustering techniques that serve as a seed taxonomy. The taxonomy editor, eClassifier, provides powerful tools to visualize and edit each taxonomy to make it reflective of the desired theme. Cluster validation tools allow the editor to verify that documents rece...
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作者:Lee, YW; Strong, DM
摘要:Knowledge about work processes is a prerequisite for performing work. We investigate whether a certain mode of knowledge, knowing-why, affects work performance and whether the knowledge held by different work roles matters for work performance. We operationalize these questions in the specific domain of data production processes and data quality. We analyze responses from three roles within data production processes, data collectors, data custodians, and data consumers, to investigate the effe...
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作者:Peace, AG; Galletta, DF; Thong, JYL
作者单位:West Virginia University; Pennsylvania Commonwealth System of Higher Education (PCSHE); University of Pittsburgh; Hong Kong University of Science & Technology
摘要:Theft of software and other intellectual property has become one of the most visible problems in computing today. This paper details the development and empirical validation of a model of software piracy by individuals in the workplace. The model was developed from the results of prior research into software piracy, and the reference disciplines of the theory of planned behavior, expected utility theory, and deterrence theory. A survey of 201 respondents was used to test the model. The results...
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作者:Briggs, RO; De Vreede, GJ; Nunamaker, JF Jr
作者单位:University of Arizona; Delft University of Technology; University of Nebraska System
摘要:Field research and laboratory experiments suggest that, under certain circumstances, people using group support systems (GSS) can be significantly more productive than people who do not use them. Yet, despite their demonstrated potential, GSS have been slow to diffuse across organizations. Drawing on the Technology Transition Model, the paper argues that the high conceptual load of GSS (i.e., understanding of the intended effect of GSS functionality) encourages organizations to employ expert f...
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作者:Sierhuis, M; Clancey, WJ; Seah, C; Trimble, JP; Sims, MH
作者单位:Florida Institute for Human & Machine Cognition (IHMC); State University System of Florida; University of West Florida; National Aeronautics & Space Administration (NASA); NASA Ames Research Center; Science Applications International Corporation (SAIC)
摘要:Work system analysis and design is complex and nondeterministic. In this paper we describe Brahms, a multiagent modeling and simulation environment for designing complex interactions in human-machine systems. Brahms was originally conceived as a business process design tool that simulates work practices, including social systems of work. We describe our modeling and simulation method for mission operations work systems design, based on a research case study in which we used Brahms to design mi...