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超文本技术在全文检索系统中的实现 总被引：3，自引：0，他引：3
本文研究了在全文检索系统中嵌入超文本技术的实现方法,并讨论了利用超文本技术进行全文查询阅读的思路。作者主要介绍述几个方面的技术动态锚点生成技术、锚点词库的构造、锚点词库与其他数据库之间的链接关系以及利用锚点词进行全文定位阅读的实现方法。 相似文献
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Paul F. Marty Author Vitae 《Library & information science research》2011,33(3):211-219
The recent development of personal digital collections systems on museum websites has prompted researchers to examine the motivations and expectations of museum visitors as they interact with those systems. Results from an online survey completed by visitors to six different museum websites show that users of personal digital collections systems are primarily motivated by a desire to create simple collections of objects and images, and are less influenced by the more complicated features museums have implemented to encourage user participation. The significance of these findings is explored through a discussion of user expectations and motivations with respect to creating personal digital collections, and an attempt is made to reconcile some of the disparities between the perceptions of survey respondents and the experiences of museum professionals developing and implementing personal digital collections systems. 相似文献
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依恋理论视角下用户在线评论信息生成动力机制 总被引：2，自引：0，他引：2
[目的/意义]用户投入真情实感所撰写的评论更加具有参考与借鉴价值,从依恋理论的视角探究用户生成在线评论信息的动力机制,为提高用户生成内容质量提供新的理论思路,对从信息源视角实现用户评论信息与用户生成内容的优化管理具有借鉴指导意义。[方法/过程]结合依恋理论、用户生成理论等相关理论研究,以用户依恋作为内驱动力,探讨用户生成在线评论信息的动力来源与动力结构,分析依恋对用户生成在线评论信息的驱动方式、驱动过程以及影响用户生成在线评论信息的依恋驱动因素。[结果/结论]认为用户表达自我、实现自我、愉悦自我是生成在线评论信息的内在动力来源,用户依恋对其生成在线评论信息存在导向驱动、激励驱动与调节驱动等3种驱动方式。影响用户生成在线评论信息的依恋驱动因素主要包括用户情感依恋因素与认知依恋因素,激发用户情感依恋与认知依恋的深层认同是优化用户生成评论的重要途径。 相似文献
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Based on a nationwide investigation of the current state of preservation of museum objects in China, around 51% of the 35 million museum objects show different degrees of deterioration. Although treatment of objects is necessary, treatment alone is not sufficient. In China's present situation, preventing damage to museum objects is much more cost-effective than allowing damage to happen and then treating it. The number of museums in China is increasing very fast: 23?000 exhibitions are held, 600 million visits are made, and 35?000 archaeological objects are excavated nationwide, each year. At the same time, these museums are widely distributed and have different levels of resources. We need both technical knowledge and preventive conservation to safeguard our precious museum objects. This paper introduces research achievements in preventive conservation, and traces the development of this discipline in China. Starting from the classification of museums in China, legislation is detailed on preventive measures such as selecting appropriate light sources, controlling temperature, relative humidity, light damage, and pollutants. This paper describes achievements in monitoring, analysis, evaluation, and control of museum environments in China. It also proposes future directions for museum environment studies during China's twelfth Five-Year Plan. 相似文献
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超文本全文检索系统的研究 总被引：4，自引：3，他引：1
全文检索和超文本技术的结合是情报检索领域的一个发展方向, 但目前已有的全文检索系统都缺乏超文本能力, 而超文本系统也缺乏全文检索功能。本文提出了一个超文本全文检索系统的模型, 并介绍了一个基于该模型的试验系统HFTRS (Hypertext Full Text Retrieval System) , 试图就超文本技术和全文检索技术的结合作一探讨。 相似文献
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The paper describes the electronic guide HIPS that can be used duringthe process of a visit in a museum, i.e., for preparation, execution andevaluation. Users can access the system via the Web to prepare a visitby receiving information about the content and organization of anexhibition and practical issues like location and opening hours. Thevisitor can also prepare a tour for the actual visit or define hotspotswith important exhibits. The system should remind the user when on site.Once the user is in the museum he or she has two specific options to usethe system: the visitor can walk around in the museum and remainstanding where he or she finds an item of interest. The current locationin the room identified by infrared emitters at all exhibits triggers anindicator for the information presentation. Or, the visitor can select atour prepared by a curator, prepared by the user in advance (at home) orgenerated by the user ad hoc. In the museum, the information access isprovided via wireless technologies. This allows the user to accessinformation by moving in the physical space and navigating in theinformation space concurrently. The Web-based server approach allows foradaptive information selection and presentation based on a user modelevaluating the history of the usage of the system. The user canaccelerate the adaptation by specifying interests and preferences in theuser model. Before the visit the user can define tours and hotspots andenter annotations that will be presented or activated by the system inthe appropriate physical environment. After a visit in the museum theuser can evaluate the experience at home for further own inquiries orfor communication with other interested people. Thebefore-during-after-the-visit-support of visitors via nomadicinformation system has been designed based on evidence from ourquestionnaire pre-study, which showed that visitors actually useinformation available in or about museums before and also after avisit. 相似文献
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国外实时咨询软件评价 总被引：56，自引：3，他引：56
实时咨询软件的评价标准是功能完备、使用方便和售后服务。主要功能包括文字交谈、网页发送、同步浏览、咨询日志管理和提问转发。文章重点评价了LSSI公司的VRT软件和OCLC的QuestionPoint,建议国内开发标准实时咨询软件和合作咨询网管理软件。 相似文献
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Fiona Cameron 《Curator: The Museum Journal》2003,46(3):325-340
Digital technologies and their uses within museum collections have until recently been explored primarily from a technical viewpoint. Increasingly, museum professionals are moving beyond technologically‐driven reasoning to entertain new ways of conceptualizing both collections and information. This is leading to knowledge models beyond those already imagined. This paper considers the synergy between theoretical ideas in the academy and the computer ontologies that have been brought to bear on collections information. Drawing on user research findings from the Themescaping Virtual Collections project and the work of leading literary and media theorists, the paper examines how user needs and digital technologies are reformulating our understanding of museum collections and the relationships between museums and audiences. 相似文献
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基于点击流数据的用户近期兴趣视图生成方法 总被引：1，自引：0，他引：1
利用点击流数据综合分析用户点击行为，同时考虑用户对所点击页面的浏览行为和具体内容，分别引入操作行为权重和特征词条权重，提出一种基于点击流数据的用户近期兴趣视图生成方法。 相似文献
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数据与数据之间通过富含语义链接的方式形成了有价值的数据网络,在以语义网为核心的网络架构中,网络资源的语义化结构、细粒度描述、数据关联等特性对数据加工及利用提出了新的挑战,信息组织的处理对象及外延发生着变化,信息组织工具不断丰富且功能趋于统一。本文依据信息组织的不同功能和处理流程可以将其细分为资源层、元数据记录层、词表层,分别对各个层次的特点、变化及其未来发展进行分析,认为从文本中准确提取出反映语义含义的特征项是当前信息组织的关键问题,元数据集、知识组织系统成为词表的主要构成,知识组织系统呈现出描述对象概念化、语义关系多样化、描述语言形式化、数据开放关联性四大特点。图3。参考文献23。 相似文献
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Anchor texts complement Web page content and have been used extensively in commercial Web search engines. Existing methods
for anchor text weighting rely on the hyperlink information which is created by page content editors. Since anchor texts are
created to help user browse the Web, browsing behavior of Web users may also provide useful or complementary information for
anchor text weighting. In this paper, we discuss the possibility and effectiveness of incorporating browsing activities of
Web users into anchor texts for Web search. We first make an analysis on the effectiveness of anchor texts with browsing activities.
And then we propose two new anchor models which incorporate browsing activities. To deal with the data sparseness problem
of user-clicked anchor texts, two features of user’s browsing behavior are explored and analyzed. Based on these features,
a smoothing method for the new anchor models is proposed. Experimental results show that by incorporating browsing activities
the new anchor models outperform the state-of-art anchor models which use only the hyperlink information. This study demonstrates
the benefits of Web browsing activities to affect anchor text weighting. 相似文献
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《Library & information science research》2006,28(1):128-144
This article presents results from 21 semi-structured interviews with museum information professionals who were asked about their experiences working with information resources, tools, and technologies. These interviews were analyzed to develop profiles of four types of information professionals working in museums. The article presents these profiles, focusing on the responsibilities of today's museum information professionals and their role in meeting user needs in the modern museum, thereby improving understanding of the evolving role of museum information professionals. 相似文献
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[目的/意义]旨在构建社会化问答社区用户生成答案质量评价指标体系，实现面向用户需求的答案质量自动化评价和筛选，提高社会化问答社区知识服务质量。[方法/过程]引入社会情感特征和用户特征，运用因子分析和结构方程实证构建用户生成答案质量评价指标体系。基于GA-BP神经网络模型设计答案质量自动化评价方法。最后，选取知乎网站数据对用户生成答案质量评价指标体系和自动化评价方法进行应用研究。[结果/结论]构建包含答案文本特征、回答者特征、时效特征、用户特征、社会情感特征5个维度的评价指标体系。实验分析发现基于GA-BP神经网络的答案质量自动化评价方法相比于其他方法准确率较高、平均误差低，具有可行性和有效性，能够进一步应用和推广实践。 相似文献