排序方式: 共有235条查询结果,搜索用时 15 毫秒
61.
Susumu Yata Masaki OonoAuthor VitaeKazuhiro MoritaAuthor Vitae Masao FuketaAuthor VitaeToru SumitomoAuthor Vitae Jun-ichi AoeAuthor Vitae 《Information processing & management》2007
A trie represented by a double-array enables us to search a key fast with a small space. However, the double-array uses extra space to be updated dynamically. This paper presents a compact structure for a static double-array. The new structure keeps character codes instead of indices in order to compress elements of the double-array. In addition, the new structure unifies common suffixes and consists of less elements than the old structure. Experimental results for English keys show that the new structure reduces space usage of the double-array up to 40%. 相似文献
62.
Modeling Web-based library service quality 总被引:1,自引:0,他引:1
Studies of e-service quality have consistently used adaptations of service-quality measurement tools that have been adopted and extended from traditional service-quality frameworks. However, a fresh insight into the investigation of key determinants of Web-based library service quality, with an emphasis on how library customers perceive service quality, has much to offer. Key determinants were identified, and contributed to the development and empirical testing of a proposed conceptual model of service quality that encompasses environment, delivery, and outcome quality. Unlike the disconfirmation approach, the performance-only measure was used. Participants included postgraduates and academic staff from four research intensive universities in Malaysia. Exploratory factor analysis and confirmatory factor analysis using structural equation modeling was carried out in order to develop and validate a measurement model for Web-based service quality, which included three second-order dimensions and eight first-order dimensions. Insights into the conceptualization of Web-based library-service quality as a multidimensional hierarchical construct are provided. The emergence of specific determinants specific to the Web services supports the notion that measurement of electronic-service quality is different from traditional services, though they may share some common factors. 相似文献
63.
New regulatory institution for the convergence of broadcasting and telecommunications: A Korean case
Daeho Kim Author Vitae 《Government Information Quarterly》2011,28(2):155-163
This paper addresses a new case for the convergent regulatory institution for broadcasting and telecommunications in Korea. This paper emphasizes that, when considering a convergent regulatory body, Korea's main principle to establish is a reflection of the paradigm shift of convergence and IT industry. The proposal of the Korean Communications Commission addresses that as a prior factor. This paper deals with three characteristics in establishing the KCC: accommodating policy making and regulation together within a single institution; choosing a commission model as a new organizational type, which inherits a broadcasting legacy to ensure diversity and independence; combining content and network sector together. This paper attempts to show that the Korean model gives a power to the convergent regulatory institution to make the country remain one of the leading countries in information and communication sector as well as implement convergence of broadcasting and telecommunications successfully. 相似文献
64.
Rowena CullenAuthor Vitae Laura SommerAuthor Vitae 《Government Information Quarterly》2011,28(2):148-154
This article addresses the widely debated question of whether online communication through the Internet will fulfill its potential to enhance democratic processes in society. The paper reports the findings of a survey of groups engaged in some form of civic activity, in both online and offline groups. Comparisons are drawn between the responses of those engaged in both types of group to determine whether the motivations, behavior, and satisfaction of participants differ because of the medium of communication. Contrary to some expectations in the literature, the findings suggest that participants in online groups are marginally less satisfied with their participation in their group. The findings have implications for politicians, policy makers, and groups engaged in civil society when using online channels of communication for democratic discourse. 相似文献
65.
Gerald GrantAuthor Vitae Shawn McKnightAareni UruthirapathyAuthor Vitae Allen BrownAuthor Vitae 《Government Information Quarterly》2007
As shared services organizations (SSO) become more popular as a service management and delivery option in government, properly defining and setting up the governance structure continues to be a key success factor. This paper explores the options and issues to consider when selecting and implementing shared services governance including topics such as oversight, accountability, culture, management of resources, and of day-to-day operations. Shared services organizations are increasingly common in private sector companies and the particular challenges involved in the governance of an SSO in a public service context are highlighted and discussed. 相似文献
66.
Governments around the world are increasingly moving toward online service delivery in what is commonly called e-government. There are high hopes for e-government, particularly that the associated technologies provide the scope to make government services more responsive. This article reports on a 2006 study of one aspect of e-government responsiveness, namely, the basic capacity to answer a simple question posted by email. To this end, federal and state agencies in Australia, and central and local government agencies in New Zealand were emailed (n = 273). Data related to locating contact email addresses and subsequent responses was collected. The key finding was that the Australian agencies consistently did not perform as well as their New Zealand counterparts, bringing into question one component of their higher ranking in international e-government studies and also their potential to deliver on the Australian government policy that e-government means more responsive government. 相似文献
67.
Krishna JayakarAuthor Vitae Eun-A ParkAuthor Vitae 《Government Information Quarterly》2012,29(1):50-59
The National Broadband Plan (NBP) recently announced by the Federal Communication Commission visualizes a significantly enhanced commitment to public computing centers (PCCs) as an element of the Commission's plans for promoting broadband availability. In parallel, the National Telecommunications and Information Administration (NTIA) has channelized part of the Broadband Technology Opportunities Program (BTOP) funding to PCCs. However, BTOP funding was the result of an unprecedented economic crisis, and is unlikely to be repeated. Future programs will need to evolve criteria for selecting projects for funding that maximize their cost-effectiveness. We argue in this paper that basing funding for PCCs on broadband availability (or non-availability), is not as cost-effective as considering a broader array of factors related to demand for internet access at public computer centers. We use data on public libraries from the National Center of Educational Statistics to identify factors predicting high demand for internet access at PCCs. Based on this analysis, we argue that low demand markets may benefit more from consumer outreach and digital literacy programs, than from infrastructure deployment. Also, we argue that markets with high availability, should receive more funding if there is high demand as well, as predicted by our model. 相似文献
68.
Charles D. Bernholz Linda G. NovotnyAuthor VitaeAna L. GomezAuthor Vitae 《Government Information Quarterly》2009
The tribal insignia of American Indians offer a distinctive view into the history of these people. Recently, as the result of federal legislation, some of these materials have been brought together, for tribes that are either federally or State recognized entities, as part of the database collection maintained by the United States Patent and Trademark Office (USPTO). This article focuses on the history and use of such images; the policy response by the USPTO to the charge by the Trademark Law Treaty Implementation Act (1998) to examine the USPTO's specific responsibility to protect such official insignia; and the Office's resulting digital product. 相似文献
69.
Shy-tzong LiouAuthor Vitae Chung-Ping LiuAuthor Vitae 《Government Information Quarterly》2011,28(1):36-46
To improve marine transportation safety, countries around the world have established authorities dedicated to implementing port state control (PSC). Appropriate measures have also been taken to ensure that these dedicated organizations are given enough power to carry out their duties independently and credibly as a safety mechanism. In contrast, Taiwan's existing PSC inspections are administrated by commercial port authorities, causing impartiality. The disadvantages of such a system become evident when a ship is found to have critical faults, because commercial port authorities have difficulty deciding whether the ship should be detained. Under such circumstances, the impartiality and objectivity of these port authorities are often questioned. Therefore, the restructuring of port authorities to improve dedication and objectivity is a critical issue in the implementation of PSC. This research uses three stages of methodology: (1) the in-depth expert interviews aim to gather information; (2) the Analytic Hierarchy Process (AHP) calculates the weight of guidelines and evaluates feasible solutions. Port state control officers (PSCOs), maritime transport operators, and the staffs of competent authorities are used as the respondents of this expert questionnaire; and (3) the close-loop questionnaire survey evaluates and confirms the results of the above two research processes. The objective of this research is to create the best solution for introducing an independent authority dedicated to managing Taiwan's PSC tasks. Based on the evaluation of this research study, the optimal solution is to establish an independent government agency under the Ministry of Transportation and Communications (MOTC). An alternative optimal solution is to form a PSC committee under MOTC, which would serve as a temporary measure if legislation for establishing an independent government agency is delayed. These solutions would improve the PSC in Taiwan and strengthen marine transportation safety. 相似文献
70.
Arthur Taylor Author Vitae 《Information processing & management》2012,48(1):136-153
Relevance judgments occur within an information search process, where time, context and situation can impact the judgments. The determination of relevance is dependent on a number of factors and variables which include the criteria used to determine relevance. The relevance judgment process and the criteria used to make those judgments are manifestations of the cognitive changes which occur during the information search process.Understanding why these relevance criteria choices are made, and how they vary over the information search process can provide important information about the dynamic relevance judgment process. This information can be used to guide the development of more adaptive information retrieval systems which respond to the cognitive changes of users during the information search process.The research data analyzed here was collected in two separate studies which examined a subject’s relevance judgment over an information search process. Statistical analysis was used to examine these results and determine if there were relationships between criteria selections, relevance judgments, and the subject’s progression through the information search process. Findings confirm and extend findings of previous studies, providing strong statistical evidence of an association between the information search process and the choices of relevance criteria by users, and identifying specific changes in the user preferences for specific criteria over the course of the information search process. 相似文献