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1.
《Information processing & management》2001,37(3):435-458
We are interested in how ideas from document clustering can be used to improve the retrieval accuracy of ranked lists in interactive systems. In particular, we are interested in ways to evaluate the effectiveness of such systems to decide how they might best be constructed. In this study, we construct and evaluate systems that present the user with ranked lists and a visualization of inter-document similarities. We first carry out a user study to evaluate the clustering/ranked list combination on instance-oriented retrieval, the task of the TREC-6 Interactive Track. We find that although users generally prefer the combination, they are not able to use it to improve effectiveness. In the second half of this study, we develop and evaluate an approach that more directly combines the ranked list with information from inter-document similarities. Using the TREC collections and relevance judgments, we show that it is possible to realize substantial improvements in effectiveness by doing so, and that although users can use the combined information effectively, the system can provide hints that substantially improve on the user's solo effort. The resulting approach shares much in common with an interactive application of incremental relevance feedback. Throughout this study, we illustrate our work using two prototype systems constructed for these evaluations. The first, AspInQuery, is a classic information retrieval system augmented with a specialized tool for recording information about instances of relevance. The other system, Lighthouse, is a Web-based application that combines a ranked list with a portrayal of inter-document similarity. Lighthouse can work with collections such as TREC, as well as the results of Web search engines. 相似文献
2.
文章以信息质量和系统质量作为主要测量维度,构建了基于预期-比较范式的网站用户信息满意测评模型,然后采集数据,运用PLS结构方程建模方法对网站用户信息满意测评模型进行验证,获得网站用户信息满意的影响因素、影响程度的有关结论,为网站用户信息满意测评提供指导。 相似文献
3.
The lack of consensus on the meaning and role of decision support systems (DSSs), in the market and in academia, indicates that DSS as a field is not maturely defined and modeled. Moreover, an integrated view of the field is necessary to assess the role and value of DSS products and services. Such a view is also a prerequisite for understanding the issues of integration, as well as the potential contributions of artificial intelligence (AI) and expert systems (ES). This paper presents a unified and dynamic model showing the relationships of knowledge, information, decision, and action in the decision process. DSS modeling is viewed as a logical deduction of the utility (goal) structure. Using the framework of the model, the sequence and phases of decision making are revised. The concept of situation model is introduced. Four categories of information are addressed: instruction, historical, predicted value of alternatives, and patterns. The role of existing and potential support systems and their evolution toward utilization of ES and AI are discussed. 相似文献
4.
Web 2.0 changed everyday life in many aspects, including the whole system that orbits around the purchase of products and services. This revolution necessarily involved also companies, because customers became increasingly demanding. The diffusion of social media platforms pushed customers to prefer this channel for quickly obtaining information and feedback about what they want to buy, as well as for asking help after the selling. In this framework, many organisations adopted a new way of providing assistance known as social customer care. A direct link to companies allows customers to obtain real-time solutions. In this paper, we introduce a new strategy for automatically managing the information listed in the requests that customers send to the social media accounts of companies. Our proposal relies on the use of network techniques for extracting high-level structures from texts, highlighting the different concepts expressed into the customers’ written requests. The texts can be then organised on the basis of this new emerging information. An application to the requests sent to the AppleSupport service on Twitter shows the effectiveness of the strategy. 相似文献
5.
《International Journal of Information Management》2017,37(3):99-110
Banks seem to be one of the most business that are really interested in such systems to provide their customers better services as well as to enhance their effectiveness and efficiency. However, the successful implementation of Mobile banking largely depends on the extent of how much customers are fully motivated to adopt it. In fact, over the Jordanian context, the adoption rate of mobile banking is very low and quite few studies that have examined the related issues of mobile banking. Thus, the purpose of this study is to investigate the factors influencing behavioural intention and adoption of Mobile banking by customers of Jordanian banks. The proposed model has assimilated factors from the extended Unified Theory of Acceptance and Use of Technology (UTAUT2) along with trust. Data was collected by conducting a field survey questionnaire completed by 343 participants. The results mainly showed that behavioural intention is significantly and positively influenced by performance expectancy, effort expectancy, hedonic motivation, price value and trust. This study also looking forward to providing the Jordanian banks with applicable guidelines for effectively implementing and designing Mobile banking. Furthermore, research limitations and future directions will be discussed further in the last section. 相似文献
6.
Information Privacy in the Marketspace: Implications for the Commercial Uses of Anonymity on the Web 总被引：2，自引：0，他引：2
While there is no question that the commercial development of the World Wide Web is still in its infancy and growing rapidly, this development faces a serious barrier to ultimate commercialization. In this article we develop the argument that the primary barrier to the successful commercial development of the Web is the current lack of consumer trust in this new commercial medium. This lack of trust is engendered primarily by the industry's documented failure to respond satisfactorily to mounting consumer concerns over information privacy in electronic, networked environments. We examine how such concerns are affecting the growth and development of consumer-oriented commercial activity on the World Wide Web and investigate the implications of these concerns for potential industry response. In the short run, the commercial development of the Web depends on giving consumers the opportunity to be anonymous when engaging in information exchanges and online transactions. Ultimately, however, commercial Web providers must come to realize that the Internet dramatically shifts the balance of power between a business and its customers, and therefore, radical new business strategies will be required for long-term success. Because the Web offers unprecedented opportunities for interacting with customers, strategies that take advantage of the medium's unique features are likely to reap important rewards in customer satisfaction, loyalty, and retention. Therefore, in the long run, the most effective way for commercial Web providers to develop profitable exchange relationships with online customers is to gain consumer trust by allowing the balance of power to shift toward more cooperative interactions between firms and their customers. 相似文献
7.
Enterprise content management (ECM) systems are implemented in many organizations to deal with the complexity of the structured and unstructured organizational data. The little available ECM literature shows that many organizations using ECM focus on short-term benefits while strategic decision-making benefits are rarely considered. Although the relationship between the use of ECM and decision support (DS) is investigated recently, there is scarcity in research that investigates the categories of DS capabilities that ECM systems may have. The objective of this paper is to determine whether ECM systems can have the DS capabilities of four categories of decision support systems, namely classic decision support systems (DSS), executive information systems (EIS), expert systems (ES), and group decision support systems (GDSS). The findings indicate that ECM systems can have all decision support capabilities of classic DSS, EIS, and ES. However, ECM systems can have only a portion of decision support capabilities of GDSS. 相似文献
8.
Thomas N. Gardner 《The Information Society》2013,29(2):129-130
While there is no question that the commercial development of the World Wide Web is still in its infancy and growing rapidly, this development faces a serious barrier to ultimate commercialization. In this article we develop the argument that the primary barrier to the successful commercial development of the Web is the current lack of consumer trust in this new commercial medium. This lack of trust is engendered primarily by the industry's documented failure to respond satisfactorily to mounting consumer concerns over information privacy in electronic, networked environments. We examine how such concerns are affecting the growth and development of consumer-oriented commercial activity on the World Wide Web and investigate the implications of these concerns for potential industry response. In the short run, the commercial development of the Web depends on giving consumers the opportunity to be anonymous when engaging in information exchanges and online transactions. Ultimately, however, commercial Web providers must come to realize that the Internet dramatically shifts the balance of power between a business and its customers, and therefore, radical new business strategies will be required for long-term success. Because the Web offers unprecedented opportunities for interacting with customers, strategies that take advantage of the medium's unique features are likely to reap important rewards in customer satisfaction, loyalty, and retention. Therefore, in the long run, the most effective way for commercial Web providers to develop profitable exchange relationships with online customers is to gain consumer trust by allowing the balance of power to shift toward more cooperative interactions between firms and their customers. 相似文献
9.
Mobile information services have revolutionized business models and service delivery methods by facilitating consumer access to information and order placement via mobile apps. In developed markets, mobile banking (m-banking) and mobile payment (m-payment) applications have replaced text-based mobile services. However, extant research has not addressed these mobile financial services apps (MFSAs) adequately from the perspective of consumer behavior. Thus, the present study developed and tested a series of hypotheses related to the antecedents of perceived value of MFSA use; it also examined how such use affects the development of customers’ overall relationships with banks. Our hypotheses were tested using two samples (N = 992; N = 524) comprising different types of MFSA end-users in one of the leading countries in digital banking, Finland. The results supported most of the hypotheses and revealed that self-congruence and new product novelty are the principal drivers of perceived MFSA value. In addition, the findings show that the perceived value of MFSAs yields strong positive effects on customers’ overall satisfaction and commitment to their bank. The present study’s key managerial implication is that banks’ investments in developing MFSAs result in improved relationships with customers and increased business. 相似文献
10.
基于Web的学术信息资源引文索引与分析体系 总被引：3，自引：0，他引：3
阐述了基于Web环境下的学术信息资源引文索引与分析体系——Web of Knowledge,Citescer和Citebase的功能,并进行了比较。在此基础上,指出了开放环境下引文索引的意义及其发展方向。 相似文献
11.
Measuring the success of mobile government (m-government) is a significant challenge faced by the public sector today, as governments are increasingly using mobile technology to provide public services to citizens and m-government endeavors have often fallen short of their potential. To address this gap, we draw on DeLone and McLean’s (2003) updated information systems (IS) success model in order to develop an m-government success model that theorizes service quality as comprising online and offline service quality and further uses perceived value to measure net benefits. The results of a survey of 286 m-government users in China indicate that information quality and online service quality, but not system quality, are positively associated with citizen satisfaction, which in turn is positively associated with perceived value. The results also show that the relationship between online service quality and citizen satisfaction is positively moderated by offline service quality, while citizen satisfaction partially mediates the relationships between information quality/online service quality (but not system quality) and perceived value. This study extends the updated IS success model by differentiating between online and offline service quality, as well as by introducing the notion of perceived value. Our results provide guidance to researchers and practitioners regarding the role of service quality and perceived value in measuring m-government system success. 相似文献
12.
This study extends the post-acceptance model of information systems (IS) continuance, which is widely used to explain users’ satisfaction and IS continuance intentions. The extended model includes additional variables such as perceived ease of use (PEOU), attitude, trust, and enjoyment. The proposed model was tested using meta-analytic structural equation modeling (MASEM). The analysis included 1,056 observations on fifteen relationships from 214 independent studies with a combined sample of 84,343. The results confirm the significance of all the relationships proposed in the original model. Furthermore, the findings indicate that PEOU directly influences perceived usefulness, satisfaction, and attitude. Trust and enjoyment both have a positive impact on users’ satisfaction and IS continuance, wherein the effect of enjoyment was higher than trust. post-consumption satisfaction resulted in a favorable attitude toward technology, which further affected IS continuance. From a theoretical perspective, the current study acknowledges the shift in users’ attitude toward technology and emphasizes the hedonic value of IS usage as users report a higher degree of satisfaction toward responsive, easy to use, and enjoyable technologies. Marketers should focus on the enjoyment and gratifications derived from technology to increase potential IS usage. 相似文献
13.
顾客如何感知大规模定制——基于顾客自我效能、选项呈现方式与定制满意的实证研究 总被引：1，自引：0，他引：1
基于消费者自我定制产品视角,探讨顾客自我效能、企业定制选项呈现方式与定制结果满意之间的关系,通过对手机和笔记本电脑的定制模拟实验数据发现:不同定制的选项呈现方式导致的顾客感知决策难度和定制结果满意存在不同,"减法"定制方式比"加法"定制方式顾客感知决策难度更大,顾客对定制结果的满意度更高。研究还发现,顾客自我效能显著影响对定制方式的选择,高自我效能个体偏好"减法"定制方式,低自我效能个体偏好"加法"定制方式,高自我效能个体比低自我效能个体对定制结果的满意度更高。最后提出研究的理论价值和管理启示。 相似文献
14.
本文通过问卷调查数据,检验了顾客满意度对口碑推荐进而对新客户购买决策的影响,模型中同时考虑了产品涉入度和情感承诺的调节作用以及顾客交流特征(口碑传播者的专业性、关系强度、感知风险)对新客户购买决策的影响。结果表明:顾客满意度对口碑推荐有显著的正向影响;口碑推荐对新客户购买决策有显著的正向影响;产品涉入度在顾客满意度和口碑推荐的关系中起着显著的正向调节作用,但情感承诺的调节作用不明显;口碑传播者的专业性以及关系强度对新客户购买决策有显著的正向影响,感知风险的影响不显著。同时本文通过计算口碑推荐数量和口碑转换概率从而预测出基于口碑推荐方式获取新顾客数量。 相似文献
15.
Recently, online recommendations have become a main channel for enterprise promotion; however, little evidence has been directed toward understanding the fitness of products information in the online recommendations context. The current study examines the fitness of recommended products information and budget of customers selves’ situation tries to find the key factors that buy exceed the recommended products in the online channels. Drawing upon the customer satisfaction index (CSI) and the price information seeking behavior (PISB) model, this paper proposes a research model and validates it in the context of recommendations from the well-known e-commerce websites from 342 participants. With Amos 18.0 this study finds that, in the online environment, the constructs of CSI are evaluated in online recommendations, in addition, finds the fitness of products information can be vital factor impact perceived quality, value, satisfaction, and buy extra. Moreover, the budget constraints of customers positively impact price comparison, and price comparisons negatively impact satisfactions. This research sheds light on the buy extra behavior in online recommendations and provides insights into the marketing promotion strategies in electronic markets. 相似文献
16.
Online social media is transforming the way customers communicate and exchange product information with others. Consumers increasingly rely on the opinions and recommendations from social media members when making purchasing decisions. However, information received from social media may have different meanings and social implications for consumers. Based on the theory of informational social influence and heuristic-systematic model (HSM), we develop a model to understand the relative importance of informational social influence, normative social influence, and perceived information quality on the consumer’s social shopping intention under different levels of product involvement. The results of the structural equation modeling (SEM) using a sample of 503 consumers in the Facebook brand fan pages indicate that social influences have a greater impact on the consumer’s social shopping intention than perceived information quality. Three social interactional factors (perceived similarity, familiarity, and expertise) have a positive effect on social shopping intention via the mediation of informational, normative social influence and perceive information quality. The multiple-group analysis suggests that high product-involved consumers are motivated to exert more cognitive effort to evaluate the product information. In contrast, low product-involved consumers are more susceptible to informational social influence. We draw on these findings to offer implications for researchers and practitioners. 相似文献
17.
《International Journal of Information Management》2017,37(5):417-430
Organizations face significant challenges in capturing value from their investments in strategic information systems such as enterprise systems (ES). Managers are a powerful source of influence shaping the post-adoption attitudes and behaviors of users and the success of ES. However, the extant IS literature has focused primarily on the role of top management and theoretical explanations of the role of supervisors in fostering continuing usage of ES are lacking. Drawing on transformational leadership theory and the IS continuance (ISC) model, this paper conceptualizes a theoretical model differentiating the influence mechanisms through which different types of leadership behaviors influence the success of ES. Data collected from 192 users of ES confirms our theorization. We find that transformational leadership behaviors of supervisors influence users’ evaluations of satisfaction and perceived usefulness, while their transactional leadership behaviors influence users’ ES continuance intention by moderating the effects of user satisfaction and perceived usefulness on ES continuance intention. This study advances research on the role of leadership behaviors of supervisors in capturing value from enterprise systems. The research also contributes to practice by suggesting effective strategies for promoting continued usage of mission critical systems such as enterprise systems and delivering value from firms’ IT investments. 相似文献
18.
This paper examines empirically the factors that affect the adoption of Internet banking by Tunisian bank customers. As base model, we use the technology acceptance model (TAM) and theory of planned behavior (TPB). The model employs security and privacy, self efficacy, government support, and technology support, in addition to perceived usefulness, perceived ease of use, attitude, social norm, perceived behavior control and intention to use Internet banking. Structural equation modeling is employed to examine the inter-correlations among the proposed constructs. A survey involving a total of 284 respondents is conducted and confirmatory factor analysis was used to determine the measurement efficacies. Theoretically, this study confirms the applicability of the TAM model and TPB in predicting Internet banking adoption by Tunisian bank customers. The results allow banks' decision makers to develop strategies that can encourage the adoption of Internet banking. Banks should improve the security and privacy to protect consumers' personal and financial information, which will increase the trust of users. Government should also play a role to support bank industry by having a clear and solid law on this will ensure that customers are more confident for using Internet banking, ensuring a better Internet infrastructure and helps them to encourage users to use Internet banking. Lastly, Tunisian Banks should focus on those clients who already have a home PC, access Internet and more educated and younger since they are the most likely to adopt Internet banking. 相似文献
19.
Some of the most popular measures to evaluate information filtering systems are usually independent of the users because they are based in relevance judgments obtained from experts. On the other hand, the user-centred evaluation allows showing the different impressions that the users have perceived about the system running. This work is focused on discussing the problem of user-centred versus system-centred evaluation of a Web content personalization system where the personalization is based on a user model that stores long term (section, categories and keywords) and short term interests (adapted from user provided feedback). The user-centred evaluation is based on questionnaires filled in by the users before and after using the system and the system-centred evaluation is based on the comparison between ranking of documents, obtained from the application of a multi-tier selection process, and binary relevance judgments collected previously from real users. The user-centred and system-centred evaluations performed with 106 users during 14 working days have provided valuable data concerning the behaviour of the users with respect to issues such as document relevance or the relative importance attributed to different ways of personalization. The results obtained shows general satisfaction on both the personalization processes (selection, adaptation and presentation) and the system as a whole. 相似文献
20.
Satisfaction and post-purchase intentions with service recovery of online shopping websites: Perspectives on perceived justice and emotions 总被引：1，自引：0，他引：1
This study explores post-recovery satisfaction and post-purchase intentions with service recovery of online shopping customers from the perspectives on perceived justice and emotions based on twenty scenarios that combine five service failures and four recoveries. Analytical results indicating that in addition to enhancing post-purchase intentions and post-recovery satisfaction among customers, distributive justice increases positive emotions and decreases negative ones. Additionally, procedural justice enhances post-recovery satisfaction as well as increases positive emotions and decreases negative ones, while interactional justice only increases post-recovery satisfaction of customers. Moreover, while positive emotions increase post-recovery satisfaction, and vice versa. Post-recovery satisfaction positively affects post-purchase intentions. Results of this study provide a valuable reference for operators and managers of online shopping websites. 相似文献