期刊引用行为与影响因子的关系

【目的】 探索期刊的文献引用行为与影响因子之间的关系,帮助编辑提高期刊影响力,帮助作者通过改进引用行为获得较高的被引潜力。【方法】 收集2014—2015年荒漠化与水土保持领域的8种中文核心期刊的文献,分析引文内容,包括期刊文献的平均参考文献数量、引文的情感倾向,以及不同引用功能的引用行为重要性加权差异情况与影响因子的相关性。【结果】 期刊文献的平均参考文献数量与影响因子存在显著相关关系;文献引文中的负向情感占比与影响因子无直接关系;基于不同引用功能的引用行为重要性加权与影响因子存在显著的相关关系。【结论】 参考文献数量较多以及引用方法、相关研究、数据、结论、观点较多的文章被引潜力较高。     

《情报科学》载文被引分析

本文以《情报学报》等10种我国图书馆学情报学核心期刊为样本，对《情报科学》载文被10种期刊近三年（1998－2000年）引用情况进行一次调查分析。     

A structural support vector method for extracting contexts and answers of questions from online forums

This article addresses the issue of extracting contexts and answers of questions from posts of online discussion forums. In previous work, general-purpose graphical models have been employed without any customization to this specific extraction problem. Instead, in this article, we propose a unified approach to context and answer extraction by customizing the structural support vector machine method. The customization enables our proposal to explore various relations among sentences of posts and complex structures of threads. We design new inference algorithms to find or approximate the most violated constraint by utilizing the specific structure of forum threads, which enables us to efficiently find the global optimum of the customized optimizing problem. We also optimize practical performance measures by varying loss functions. Experimental results show that our methods are both promising and flexible.     

网络环境下信息需求及其实现的技术规定性层面

本文对网络环境下信息主体与信息客体进行了简单的陈述，在此基础上着重对信息技术与信息需求之间的关系及其相互影响进行了较为深入的探讨。指出了信息技术发展的不同阶段决定了信息需求满足的不同程度，而不同层面的信息需求也在引导着信息技术发展的方向。     

Binary Pathfinder: An improvement to the Pathfinder algorithm

The Pathfinder algorithm is widely used to prune social networks. The pruning maintains the geodesic distances between nodes. It has shown itself to be very useful in the analysis of, amongst others, citations in BIS (bibliometrics, informetrics, and scientometrics). It has even been proposed for the online display of the search results in an information retrieval system. However, its great time and space complexity limits its use in real-time applications and in networks of any considerable size.The present work describes an improved algorithm with considerably reduced time and space complexity. Its lower execution costs thus increase its applicability both in real time and to large networks.     

中欧纺织品谈判的理论分析及启示

应用原则谈判法、谈判的需要理论以及谈判圈理论,对中欧纺织品谈判的经过、结果进行了系统分析,得出有益的启示,为以后通过谈判解决中外贸易摩擦提供了借鉴。     

文摘法与引证法的比较研究

为了正确认识文摘法与引证法的本质,本文采用两者比较分析的方法进行讨论,旨在对文摘法与引证法在理论上有一个全面地、系统地了解,在实际应用中能正确把握文摘法与引证法。     

Visualizing and mapping the intellectual structure of information retrieval

Information retrieval is a long established subfield of library and information science. Since its inception in the early- to mid -1950s, it has grown as a result, in part, of well-regarded retrieval system evaluation exercises/campaigns, the proliferation of Web search engines, and the expansion of digital libraries. Although researchers have examined the intellectual structure and nature of the general field of library and information science, the same cannot be said about the subfield of information retrieval. We address that in this work by sketching the information retrieval intellectual landscape through visualizations of citation behaviors. Citation data for 10 years (2000-2009) were retrieved from the Web of Science and analyzed using existing visualization techniques. Our results address information retrieval’s co-authorship network, highly productive authors, highly cited journals and papers, author-assigned keywords, active institutions, and the import of ideas from other disciplines.     

Popular and/or prestigious? Measures of scholarly esteem

Citation analysis does not generally take the quality of citations into account: all citations are weighted equally irrespective of source. However, a scholar may be highly cited but not highly regarded: popularity and prestige are not identical measures of esteem. In this study we define popularity as the number of times an author is cited and prestige as the number of times an author is cited by highly cited papers. Information retrieval (IR) is the test field. We compare the 40 leading researchers in terms of their popularity and prestige over time. Some authors are ranked high on prestige but not on popularity, while others are ranked high on popularity but not on prestige. We also relate measures of popularity and prestige to date of Ph.D. award, number of key publications, organizational affiliation, receipt of prizes/honors, and gender.     

1989—1999年中文引文研究论文统计分析

通过对1989－1999年间引文研究论文的来源、作者、年代、研究主题四个方面进行统计分析,探讨10年来引文研究发展的概况。     

国家创新体系中的信息需求与信息保障

本文通过对国家创新体系中各个子系统的信息需求的讨论,阐述了信息的重要组成因素,及信息保障子系统的特点与功能。     

基于布尔检索策略的问答系统性能研究

本文系统地研究和评价了问答系统（QA）中一系列可能的布尔检索策略。我们首先给出了两个评价指标：覆盖率和答案冗余度,它们被广泛的用于评价QA系统一些标准的排序检索系统的性能。其次我们考虑QA系统中的一些布尔检索策略,也就是如何从用户问题中产生布尔查询式并把与此查询相关的回答结果集返回给用户,然后评价查询的效果。本文的目的是理解如何产生更好的QA查询策略以及那些方法能更有效的实现这种策略。     

组织信息需求分析

本文探讨了组织内部的工作划分与不同工作的性质,分析了专业技术人员的信息需求特点,并从管理人员的主要活动出发,阐述其信息需求。最后,文章论述了决策活动中决策者的信息需求特点。     

Introduction to the special issue on patent processing

The processing of intellectual property documents, such as patents, has been important to the industry, business, and law communities. Recently, the importance of patent processing has also been recognized in academic research communities, particularly by information retrieval and natural language processing researchers. In addition, large test collections that include patents have recently become available, to enable the systematic evaluation of methodologies from a scientific point of view. In the light of these activities, this special issue is intended to collect advanced research papers on patent processing. As an introduction to the special issue on patent processing, this paper surveys the relevant literature and outlines the papers selected for the special issue.     

An information-pattern-based approach to novelty detection

In this paper, a new novelty detection approach based on the identification of sentence level information patterns is proposed. First, “novelty” is redefined based on the proposed information patterns, and several different types of information patterns are given corresponding to different types of users’ information needs. Second, a thorough analysis of sentence level information patterns is elaborated using data from the TREC novelty tracks, including sentence lengths, named entities (NEs), and sentence level opinion patterns. Finally, a unified information-pattern-based approach to novelty detection (ip-BAND) is presented for both specific NE topics and more general topics. Experiments on novelty detection on data from the TREC 2002, 2003 and 2004 novelty tracks show that the proposed approach significantly improves the performance of novelty detection in terms of precision at top ranks. Future research directions are suggested.     

创新研究中的知识获取与需求特征

本文对科研人员在知识创新中的知识获取与需求特征进行了调查和分析，旨在深入探讨信息服务向知识服务的转化，并更好地开发出有效支持科技创新、满足用户知识信息需求的文献知识库系统。     

90年代国内引文分析研究概述

通过对1990—1997年《全国报刊索引》(哲社版)摘录的289篇有关国内引文分析研究论文的分析研究,揭示了90年代以来国内引文分析研究的发展状况与研究内容。