协同搜索过程中用户交流内容与模式研究     

张璐  张鹏翼  刘畅 《图书情报知识》2020,(3):51-62

[目的/意义]旨在分析协同搜索用户在信息搜索任务过程中的交流内容与模式,从而理解协同搜索用户的关注重点与搜索过程。[研究设计/方法]基于书籍交互检索平台(CLEF-Social Book Search)设计实验,共招募18名被试完成两种搜索任务,通过录音记录对话并对其进行编码和分析,总结交流内容特征和模式。结合任务类型、认知类型组合、服务器记录的搜索交互行为日志以及问卷收集的搜索体验进行了探索分析。[结论/发现]从交流内容上看,协同搜索用户主要理解与评判书目信息、商讨搜索任务计划;比起认知类型不同的用户,相同认知类型的用户在操作交互方面交流更多,在评判决策方面交流较少。交流模式依据讨论内容比重可分为理解评判型、评判主导型、均衡交流型三种,评判主导型用户的任务完成满意度最高。[创新/价值]协同搜索用户的交流反映出搜索过程中需要与同伴商讨协同的焦点,也是需要系统提供协助的重点,给协同搜索系统设计提供一定参考。本研究针对协同搜索的交流内容设计的编码系统对相关的协同交流研究也有借鉴意义。  相似文献   

Beyond traditional collaborative search: Understanding the effect of awareness on multi-level collaborative information retrieval     

Nyi Nyi Htun  Martin Halvey  Lynne Baillie 《Information processing & management》2018,54(1):60-87

Although there has been a great deal of research into Collaborative Information Retrieval (CIR) and Collaborative Information Seeking (CIS), the majority has assumed that team members have the same level of unrestricted access to underlying information. However, observations from different domains (e.g. healthcare, business, etc.) have suggested that collaboration sometimes involves people with differing levels of access to underlying information. This type of scenario has been referred to as Multi-Level Collaborative Information Retrieval (MLCIR). To the best of our knowledge, no studies have been conducted to investigate the effect of awareness, an existing CIR/CIS concept, on MLCIR. To address this gap in current knowledge, we conducted two separate user studies using a total of 5 different collaborative search interfaces and 3 information access scenarios. A number of Information Retrieval (IR), CIS and CIR evaluation metrics, as well as questionnaires were used to compare the interfaces. Design interviews were also conducted after evaluations to obtain qualitative feedback from participants. Results suggested that query properties such as time spent on query, query popularity and query effectiveness could allow users to obtain information about team's search performance and implicitly suggest better queries without disclosing sensitive data. Besides, having access to a history of intersecting viewed, relevant and bookmarked documents could provide similar positive effect as query properties. Also, it was found that being able to easily identify different team members and their actions is important for users in MLCIR. Based on our findings, we provide important design recommendations to help develop new CIR and MLCIR interfaces.  相似文献   

网络对高等体育院校大学生思想政治工作的影响     

孙凌云 《南京体育学院学报(社会科学版)》2003,17(5):152-154

针对网络在当代大学生中的普遍运用而引起的系列问题,结合本职工作,深刻剖析了高等体育院校大学生思想和行为特点,重点阐述了网络对体育院校大学生的负面影响,并由此引申出如何更好的利用网络来加强高等体育院校大学生思想政治工作的问题。  相似文献   

基于深度强化学习方法的无线多跳网络能量高效机会路由     

靳晓晗  岩延  张宝贤 《中国科学院大学学报》2022,39(3):410-420

由于机会路由能够利用无线信道的广播特性和有损特性,因此一直是提高无线网络路由性能的一个很有效的途径。提出一种基于深度强化学习的无线多跳网络能量高效机会路由算法,该算法使得智能体能够通过训练学习最优的路由策略,以通过机会路由的方式减少传输时间,同时平衡能耗延长网络寿命。此外,本算法还可以极大地缓解冷启动问题并获得较好的初始性能。仿真结果表明,与现有算法相比,该算法具有更好的性能。  相似文献   

基于知识交互的协同电子商务多主体组织模型     

张少龙  周宁 《现代图书情报技术》2008,24(11):34-39

从知识管理的角度将协同电子商务组织定义为由多个主体构成的、主体之间以资源交换为目的、以资源信息为交互主题的多主体知识交互系统,提出一个多层次的知识交互组织模型——RAI模型,并给出模型的代数集合形式定义。  相似文献   

The Future of the Past: Archaeology and Anthropology on the World Wide Web     

John W. Hoopes 《Archives and Museum Informatics》1997,11(2):87-105

In the final scene of Raiders of the Lost Ark, a crate containing the object of Indiana Jones' quest is wheeled into an immense warehouse for indefinite storage and questionable research access. Unfortunately, this fate is not all that far from reality. Collections of archaeological and ethnographic materials ranging from stone axes, broken potsherds, and carved monuments to baskets, ceremonial masks, and skin canoes have been held by museums collections since the Renaissance. However, their inestimable value and unique conservation and curatorial requirements often conspire to remove them from the reach of all but the most diligent scholars. The potential of the Web to enhance the quality of research on archaeological and ethnographic collections is enormous. This paper will examine ways that one can use the Web to enhance research and improve access to a variety of materials; while there are many other resources for archaeology available on the Web, this paper focusses on museum-related sites. It will also explore the potential of the Web for innovative research strategies. Digitization of catalogs, associated documents, and images to help one locate and study collections and specific artifacts are just one approach. Others include the connection of devices to the Web, such as cameras and microscopes, the creation of virtual reference collections, and the establishment of research networks that will enhance the identification and analysis of material culture. This paper will also consider the role the Web could play in issues of cultural property, contributing to and in many ways intensifying ongoing debates of ownership, curation, conservation, and repatriation of sensitive materials.  相似文献   

试论团队精神在合作数字参考咨询中的应用   总被引：3，自引：0，他引：3  

朱峻薇 《江西图书馆学刊》2006,36(2):81-83

界定了团队和团队精神的涵义,分析了团队精神在合作数字参考咨询中的必要性,并探讨了合作数字参考咨询中团队精神的培养问题。  相似文献   

合作数字参考服务中的知识库建设--DREW 与 DCVRS 的 Knowledge Base   总被引：3，自引：0，他引：3  

焦玉英  武琳 《图书情报知识》2006,(4):98-101

知识库建设是合作数字参考服务中非常重要的部分，国外雪城信息研究所的数字参考电子仓库项目和我国CALLS分布式联合虚拟参考系统的知识库建设是非常典型的代表，深入分析其发展趋势，对以后数字参考服务的知识库建设具有指导意义。  相似文献   

试论图书馆编目工作发展的新趋势     

王新明 《新世纪图书馆》2006,(4):18-19

论文分析了国内外联机合作编目的发展情况，指出了图书馆编目工作日趋社会化集中编目的发展趋势，探讨了编目工作社会化的积极意义。  相似文献   

基于概率神经网络的文本自动分类研究   总被引：10，自引：2，他引：10  

施洁斌 《情报学报》2004,23(2):147-151

本文提出了将一种径向基网络的重要变形———概率神经网络应用于文本自动分类的研究 ,与常用的K 最邻近法相比 ,具有一定的优势 ,特别是在训练集中各类的训练样本数很不平衡时 ;与BP等其他神经网络相比 ,其特点是需调节的参数少 ,不需确定隐层数、隐层中的神经元数量等网络结构 ,比较容易使用。此外 ,从研究中的不同特征选择的评价函数来看 ,它们对分类有一定的影响 ,应用X2 统计进行特征选择的分类正确率最高 ,其次是文本证据权 ,而期望交叉熵的效果最差 ,说明特征选择在文本自动分类中也是非常重要的。  相似文献