Information retrieval in the workplace: A comparison of professional search practices     

Tony Russell-Rose  Jon Chamberlain  Leif Azzopardi 《Information processing & management》2018,54(6):1042-1057

Legal researchers, recruitment professionals, healthcare information professionals, and patent analysts all undertake work tasks where search forms a core part of their duties. In these instances, the search task is often complex and time-consuming and requires specialist expertise to identify relevant documents and insights within large domain-specific repositories and collections. Several studies have been made investigating the search practices of professionals such as these, but few have attempted to directly compare their professional practices and so it remains unclear to what extent insights and approaches from one domain can be applied to another. In this paper we describe the results of a survey of a purposive sample of 108 legal researchers, 64 recruitment professionals and 107 healthcare information professionals. Their responses are compared with results from a previous survey of 81 patent analysts. The survey investigated their search practices and preferences, the types of functionality they value, and their requirements for future information retrieval systems. The results reveal that these professions share many fundamental needs and face similar challenges. In particular a continuing preference to formulate queries as Boolean expressions, the need to manage, organise and re-use search strategies and results and an ambivalence toward the use of relevance ranking. The results stress the importance of recall and coverage for the healthcare and patent professionals, while precision and recency were more important to the legal and recruitment professionals. The results also highlight the need to ensure that search systems give confidence to the professional searcher and so trust, explainability and accountability remains a significant challenge when developing such systems. The findings suggest that translational research between the different areas could benefit professionals across domains.  相似文献   

科技查新与高校科研关系探讨     

季宇  赵志鹏 《现代情报》2007,27(2):9-10

科技查新在高校科研工作中发挥着重要作用，同时。加强科技查新与高校科研管理工作的协同，将更有利于科技查新和科研工作的共同提高。  相似文献   

利用分类法和主题法改善搜索引擎的性能   总被引：6，自引：0，他引：6  

苏瑞竹  吴英姿 《情报科学》2001,19(11):1170-1175

本文对Internet上的检索工具搜索引擎的工作机理和性能进行了全方位的探讨，指出了常见搜索引擎信息检索缺点。同时还指出了Meta搜索引擎、智能搜索引擎和代理搜索引擎虽然提高了网络信息检索的质量，但由于分类体系不统一，类目划分标准模糊，因而仍然未能从根本上改变搜索引擎主要以关键词（自然语言）作为检索入口的现状，不能实现分类检索与主题检索的一体化。要实现搜索引擎信息检索的突破，笔者认为有必要运用情报检索语言的理论和方法来完善因特网搜索引擎的性能，实现分类、主题一体化的检索机制，克服分类检索语言单纯以学科聚类、主题语言单纯以事物聚类的局限性。  相似文献   

基于数据可重用的运动估计低功耗VLSI实现     

伊蔚  金文光  沈建民  周斌 《科技通报》2006,22(6):855-859

块匹配全局搜索算法(FSBM)是效果最好的运动估计算法,但是由于它庞大的运算量限制了它的应用,特别是在数字多媒体终端等对实时性和功耗要求比较高的应用场合。针对这种情况,作者提出的处理结构结合了数据重用和低功耗技术,使得该结构的功耗比传统的全局搜索结构降低50%的功耗,数据可重用性大为提高,确保了每个数据只需被读取一次,这样就确保了较少的I/O端口数和片上内存,同时实现100%的硬件资源利用率。  相似文献   

网络计量学   总被引：19，自引：0，他引：19  

徐久龄  许莲莲 《情报科学》2002,20(1):62-65

本文回顾了计量学的产生和发展的历程，指出在网络环境下网络计量学产生的必然性。并着重探讨了网络计量学的主要特征、研究方法、研究对象范围和在网络环境中的应用。  相似文献   

单源单汇最大流简单算法     

徐翠霞 《科技广场》2007,(1):30-31

本文提出了一个单源单汇最大流简单算法,本算法具有容易理解、形式规范的特点,无论用于教学还是解决实际问题,都有较大的实用价值。  相似文献   

Comparing rankings of search results on the Web   总被引：1，自引：0，他引：1  

Judit Bar-Ilan   《Information processing & management》2005,41(6):1511-1519

The Web has become an information source for professional data gathering. Because of the vast amounts of information on almost all topics, one cannot systematically go over the whole set of results, and therefore must rely on the ordering of the results by the search engine. It is well known that search engines on the Web have low overlap in terms of coverage. In this study we measure how similar are the rankings of search engines on the overlapping results.We compare rankings of results for identical queries retrieved from several search engines. The method is based only on the set of URLs that appear in the answer sets of the engines being compared. For comparing the similarity of rankings of two search engines, the Spearman correlation coefficient is computed. When comparing more than two sets Kendall’s W is used. These are well-known measures and the statistical significance of the results can be computed. The methods are demonstrated on a set of 15 queries that were submitted to four large Web search engines. The findings indicate that the large public search engines on the Web employ considerably different ranking algorithms.  相似文献   

Facing and bridging gaps in Web searching     

Reijo Savolainen  Jarkko Kari 《Information processing & management》2006

Drawing on the ideas of the Sense-Making approach, the ways in which people face and bridge gaps in Web searching are analyzed. The empirical study is based on videotaped Web searches conducted by seven participants. Altogether 11 gaps and 13 search tactics of various types were identified. The gaps faced by the searchers originated from three major factors: problematic content of information, insufficient search competence and problems caused by the search environment. Of individual gaps, no relevant material available, inaccessible content and confusion were most frequent. Of the search tactics used in gap-bridging, following links and activating the Back button were most popular. Gaps related to the problematic content of information led the informants to redirect the search to find Web pages that focus better on the search topic. If the movement was stopped by insufficient search competence, the searchers tended to return to material that was familiar from earlier use contexts in order to regain control of the search process. Alternatively, they tried to specify the search terms. In cases where the search was interrupted by technical problems or other factors originating from the search system, gap-bridging aimed at returning to familiar and technically reliable links. The Sense-Making theory provides relevant conceptual tools to approach the dynamic and discontinuous nature of Web searching in terms of gap-facing and gap-bridging. The concept of gap-facing enables a context-sensitive analysis of the ways in which Web search processes may be stopped. Gap-bridging indicates a general level motive to find alternative ways to continue searching.  相似文献   

搜索引擎的选择与检索策略   总被引：8，自引：0，他引：8  

卢晓勤 《情报科学》2002,20(4):418-420

本文根据目前国内外搜索引擎研究状况，针对搜索引擎中出现的问题，提出了搜索引擎的选择方法，及利用技巧和策略。  相似文献   

《中文期刊数据库》Web版检索方法与技巧初探   总被引：3，自引：0，他引：3  

邓要武  刘立学 《情报科学》2001,19(9):978-980

作者长期从事计算机文献检索工作，通过对《中刊库》Web版的实际检索，初步探索出新版检索系统的一些检索技巧，抛砖引玉，供使用该系统的读者借鉴。  相似文献