竞争情报价值的度量探究   总被引：1，自引：0，他引：1  

陈远  罗琳  陈子夏 《图书情报知识》2007,12(3):15-19

竞争情报既是一种产品,也是一个操作过程。为了确定竞争情报的价值,并有效地管理竞争情报的操作过程,本文分析了国内外的相关研究成果,从“产品观”和“过程观”两个视角探讨了竞争情报价值的可行的度量方法,并对这些度量方法的适用性提出了作者的看法。  相似文献   

Precision prediction based on ranked list coherence   总被引：1，自引：0，他引：1  

Steve Cronen-Townsend  Yun Zhou  W. Bruce Croft 《Information Retrieval》2006,9(6):723-755

We introduce a statistical measure of the coherence of a list of documents called the clarity score. Starting with a document list ranked by the query-likelihood retrieval model, we demonstrate the score's relationship to query ambiguity with respect to the collection. We also show that the clarity score is correlated with the average precision of a query and lay the groundwork for useful predictions by discussing a method of setting decision thresholds automatically. We then show that passage-based clarity scores correlate with average-precision measures of ranked lists of passages, where a passage is judged relevant if it contains correct answer text, which extends the basic method to passage-based systems. Next, we introduce variants of document-based clarity scores to improve the robustness, applicability, and predictive ability of clarity scores. In particular, we introduce the ranked list clarity score that can be computed with only a ranked list of documents, and the weighted clarity score where query terms contribute more than other terms. Finally, we show an approach to predicting queries that perform poorly on query expansion that uses techniques expanding on the ideas presented earlier.

W. Bruce CroftEmail:

  相似文献   

数字馆藏服务绩效评估指标体系及其构建原则   总被引：18，自引：1，他引：18  

索传军 《图书情报知识》2006,(5):5-9

本文参考相关的国际、国家标准及国内外研究项目成果,结合我国数据库使用统计数据的可获取情况,论述了数字馆藏服务绩效评估指标体系的构建原则,并构建了数字馆藏服务绩效的评估指标体系,同时对评估指标体系的相关概念和每个指标的定义、适用范围和使用方法进行了说明,以期据此对数字馆藏的服务绩效进行评估和分析。  相似文献   

Publishing public performance results on the Internet: Do stakeholders use the Internet to hold Dutch public service organizations to account?     

Albert Jacob Meijer 《Government Information Quarterly》2007

This paper analyzes the relation between publishing public performance results on the Internet, stakeholder accountability, and the effectiveness and legitimacy of Dutch public service organizations. The empirical research focuses on Web sites with performance results of schools and hospitals. These results are published on the Internet by ‘third parties’ (government organizations, associations of public service organizations, and newspapers). Publications of performance results stimulate schools and hospitals to score better on performance indicators because they feel the ‘public eyes’ on them. However, the risk of a ‘performance paradox’ and adverse effects is great since strategic behavior may lead to higher scores but not improve the effectiveness of these organizations. The research provides moderate support for negative effects on the legitimacy of schools and hospitals which may be attributed to the sole use of the Internet as a medium for access to information and negligence of its communicative potential.  相似文献   

The effect of app store strategy on app rating: The moderating role of hedonic and utilitarian mobile apps     

《International Journal of Information Management》2021

Concerns about the performance of mobile apps have spurred a stream of research on factors contributing to the success of mobile apps in the major app stores. However, identified success factors have not been synthesized into a unified framework. Similarly, reported findings typically address main effects. The present study introduces the concept of app store strategy to synthesize the mobile app success factors that developers implement in the major app stores. The study synthesizes four such factors consisting of app size, app versions (major and minor), revenue model and mobile app names. Further, drawing on IS literature, the study distinguishes between hedonic and utilitarian mobile apps. Using a dataset of mobile apps from Play Store (N = 8325), the study investigates to what extent app store strategy interacts with the hedonic and utilitarian value of mobile apps in driving app rating. The study employed a combination of traditional regression and machine learning approaches to test proposed hypotheses. The findings make a two-fold contribution to the literature first by introducing the concept of app store strategy to synthesize mobile app success factors and second by examining hedonic and utilitarian mobile apps as a boundary condition in the relationship between app store strategy and app rating.  相似文献   

THE OTHERS: The role of individual personality,cultural acculturation,and perceived value on towards firm’s social media and acculturation orientation     

《International Journal of Information Management》2020

This paper systematically examines (i) how individual personality can influence on cultural acculturation which can impact on the higher level of perceived value in LGBTs, and (ii) how the higher level of perceived value towards social media can result in being more satisfied, (iii) consequently having a better working life at workplace and performance proficiency. The generated framework was validated through a survey from multinational corporations in multi-industries such as higher education (with more than two campuses around the world), global fashion, global retailing, tourism, hospitality, food, and electronics and information technology. Key results, implications for managers and researchers are highlighted.  相似文献   

美国国家科学基金(NSF)管理绩效评估体系及其启示     

刘力  冯勇 《科技管理研究》2020,40(13):128-135

NSF管理绩效评估是依据联邦立法要求,采用"自下而上"的多层次评估,比照绩效目标计划评估机构管理绩效成果并提出绩效改革方向。聚焦于NSF的目标-成果模式,结合NSF绩效管理发展的新趋势,从"战略规划-年度绩效计划-绩效成果报告"3个层面,描述NSF绩效目标体系及相应的绩效成果评价,并对近期NSF绩效计划的改革方向和NSF资助结构进行分析,以期获得对我国科学基金管理绩效评估的政策启示。  相似文献   

网络特征与众创空间绩效关系——基于定性比较分析方法的研究     

崔世娟  陈丽敏  黄凯珊 《科技管理研究》2020,40(18):165-172

众创空间社会网络与合作伙伴社会网络的复杂交织关系是众创空间的突出特点,对提升众创空间绩效具有重要影响。基于社会网络理论,运用聚焦组态效应的定性比较分析法（QCA）,探讨网络特征要素的组态效应对众创空间绩效产生的影响。研究表明：（1）获得众创空间高绩效有赖于网络特征要素间的组态效应,并且存在3种路径均可提升众创空间绩效,即网络中心性-关系强度主导型、网络结构主导型和关系嵌入主导型;（2）众创空间不同网络特征要素之间存在相互替补效应,这有利于获得众创空间高绩效;（3）网络中心性和关系强度是影响众创空间高绩效的核心条件,二者能有效增强网络特征对提升众创空间绩效的积极作用。  相似文献   

我国地方政府绩效目标设置的研究——基于目标设置理论视角   总被引：1，自引：0，他引：1  

魏四新  郭立宏 《中国软科学》2011,(2)

绩效目标设置是地方政府绩效管理的起始点,也是关键环节之一。本文针对我国地方政府绩效目标设置中存在问题,根据目标设置理论及其相关研究成果对地方政府绩效目标设置进行了分析,提出了地方政府绩效目标设置模型及其分解模式,并对地方政府绩效目标设置的技术和方法进行了探讨。  相似文献   

基于DEA的文化产业绩效评价实证研究以广东等13个省市2007年投入产出数据为例   总被引：3，自引：0，他引：3  

张仁寿  黄小军  王朋 《中国软科学》2011,(2)

本文运用DEA的CCR模型和DEA的超效率(Super-Efficiency)模型,根据广东等13个省市2007年文化产业投入产出数据,利用DEA-Solver-LV软件对文化产业投入产出绩效进行实证分析。研究认为:广东文化产业投入产出绩效虽综合效率得分第一,但在财政投入、固定资产投产、文化、文物单位数投入方面仍存在不足;广东省文化产业由于缺乏自主创新能力和原创能力,总体上还不具备在国际市场上的竞争力。  相似文献