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Lexis.com和Westlaw International是美国两个著名的法律数据库,其文献收录覆盖范围广、文献类型多样、检索技术复杂,从内容到功能上十分类似。对两者收录内容、检索方式、检索技术、检索功能等进行比较和分析,可使用户对其结构和检索技巧有更深刻的了解,方便学习者和研究者有效利用这两大法律数据库。 相似文献
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《Legal Reference Services Quarterly》2013,32(1):13-31
No abstract available for this article. 相似文献
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In 2010, Thomson Reuters released WestlawNext powered by WestSearch, a novel and proprietary algorithm. WestlawNext represents a new approach to legal research platform design. This article empirically examines the differences in search results using Westlaw Classic and WestlawNext by testing law students and librarians in both systems. Results demonstrate that researchers complete everyday searches faster and more accurately using WestlawNext. However, WestSearch's unique features and Thomson Reuters' failure to explain the function behind the WestlawNext main search bar and the WestSearch algorithm has limited researchers' ability to understand and effectively use WestlawNext. This lack of understanding has significant implications for instruction. 相似文献
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ABSTRACTIn 2010, Thomson Reuters released a new search engine to the legal academy called WestlawNext. WestlawNext's single-search-box approach revolutionized the legal research process. LexisNexis followed with its own next-generation search engine, Lexis Advance. This study compares the speed and accuracy of WestlawNext and Lexis Advance for basic legal research questions. Fifty-five participants answered five legal questions in each system. We reviewed their results and research trails to determine how the systems compared on speed and accuracy. Our results indicate few significant differences between the two systems for basic legal research tasks utilizing keyword searches. 相似文献
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Lee F. Peoples 《Legal Reference Services Quarterly》2013,32(2):125-149
Law students in Advanced Legal Research courses at two law schools completed a series of exercises designed to explore several discrete aspects of WestlawNext. Professor Peoples reports the results of this study concerning the impact of WestlawNext's pricing model, user interface, and search algorithm on research results. The article concludes with suggestions for improvement to WestlawNext and a call for librarians to become more involved in training students to use WestlawNext. 相似文献
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Laura C. Dabney 《Legal Reference Services Quarterly》2013,32(2-3):165-190
ABSTRACT Citators are one of the oldest and most important tools in the legal researcher's arsenal. They serve both as precautionary measures against bad law, and as a means of doing primary legal research. The evolution of citators plays an important roll in the development of both the legal publishing industry and legal research itself. This article examines many aspects of the legal citator—its history, development, uses, and possible future. 相似文献
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Lexis.com和Westlaw International是美国两个著名的法律数据库,其文献收录覆盖范围广、文献类型多样、检索技术复杂,从内容到功能上十分类似。对两者收录内容、检索方式、检索技术、检索功能等进行比较和分析,可使用户对其结构和检索技巧有更深刻的了解,方便学习者和研究者有效利用这两大法律数据库。 相似文献
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《Legal Reference Services Quarterly》2013,32(4):53-67
Abstract This article contends that the relative effectiveness of Lexis and Westlaw should be measured by their ability to find and rank relevant documents. It contains an evaluation of Boolean systems and includes discussion of the Blair and Maron and the Dabney studies in which high recall was the goal of online searches. It then suggests that when other means of discovering relevant cases are available, the need for high recall is diminished. Finally, the article examines and presents performance test results of Lexis' Freestyle and Westlaw's Win natural language search engines. 相似文献
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《Legal Reference Services Quarterly》2013,32(2-3):55-67
SUMMARY In this study, a group of recent law articles was examined to determine the proportion of cited resources that are easily findable online. Searches were conducted in databases such as LEXIS and Westlaw, and on the Internet, for full-text versions of every source cited in seven articles. The results have been broken down into 13 categories, including “federal cases,” “books,” “foreign law,” and “legal periodicals pre-1990.” Not surprisingly, coverage differs widely between the categories. Overall, the study found that 77% of the 1,984 citations in the articles reviewed are available online. The article concludes with a general discussion of why the percentage is likely to increase in the future. 相似文献