地市级移动业务经营支撑系统构建     

吴薇 《安阳工学院学报》2011,10(6):44-47

随着通讯行业重组的实施,通讯市场上出现了三家强而有力的运营商,形成三国鼎立的格局。同时,随着新格局的产生,通讯行业也必然迎来更激烈的全方位市场竞争,并且由于重组后,运营商从单一的业务平台向综合平台过渡。在当前公司业务品种、规模和数据量的不断扩大的情况下,构建一个经营支撑系统使其能根据企业发展业务的实际需求,为该企业在以客户为中心的多业务内进行信息交换、资源共享、业务综合、决策分析提供根本性的保障,帮助企业及时制定并实现灵活多变的营销策略,降低经营成本,提高用户服务水平,从而不断提高既得经济利益。  相似文献   

Dipe-D: A Tool for Knowledge-Based Query Formulation in Information Retrieval     

Ruud van der Pol 《Information Retrieval》2003,6(1):21-47

The paper reports the development of Dipe-D, a knowledge-based procedure for the formulation of Boolean queries in information retrieval. Dipe-D creates a query in two steps: (1) the user's information need is developed interactively, while identifying the concepts of the information need, and subsequently (2) the collection of concepts identified is automatically transformed into a Boolean query. In the first step, the subject area—as represented in a knowledge base—is explored by the user. He does this by means of specifying the (concepts that meet his) information need in an artificial language and looking through the solution as provided by the computer. The specification language allows one to specify concepts by their features, both in precise terms as well as vaguely. By repeating the process of specifying the information need and exploring the resulting concepts, the user may precisely single out the concepts that describe his information need. In the second step, the program provides the designations (and variants) for the concepts identified, and connects them by appropriate operators. Dipe-D is meant to improve on existing procedures that identify the concepts less systematically, create a query manually, and then sometimes expand that query. Experiments are reported on each of the two steps; they indicate that the first step identifies only but not all the relevant concepts, and the second step performs (at least) as good as human beings do.  相似文献   

用户查询中潜在时间意图分析及其检索建模     

张晓娟  陆伟  周红霞 《现代图书情报技术》2011,(11)

基于Sogou实验室提供的查询日志数据和新闻数据,探讨潜在时间意图查询的判断及其相关时间属性识别,构建潜在时间意图查询的检索排序模型。实验结果表明,时间属性识别的准确率为85%,且构建的检索模型能有效提高排序效果。  相似文献   

移动计算中概率数据集成的Top-k算法     

潘林  齐庆芳 《德州学院学报》2014,(6):63-67

基于一个给定的移动计算场景,讨论了模式映射的概率和相关的查询回答算法,并且描述了一个分布式的Top-k算法.  相似文献   

问题与策略:我国省级综合档案馆微信公众号移动服务研究     

孙大东  李真儿 《档案管理》2021,(2):100-102

由于具有互动营销功能,微信可作为档案移动服务平台建设的重要选择之一。本文以《档案移动服务平台建设指南》为依据,采用网络调查法调查了我国省级综合档案馆微信公众号开展档案查询、档案展厅、档案资讯、互动交流等移动服务的现状,在此基础上分析了其中存在的问题,并以部分优秀微信公众号和移动服务平台为例提出了相应的优化策略。  相似文献   

关于《七月》之作者问题     

力之 《钦州学院学报》2002,17(3):5-10

金履祥“安有去之七百岁而言情、状物如此之详 ,若身亲见之者 ?”姚际恒“周公去公刘之世已远 ,岂能代写其人民风俗至于如是之详且悉耶 ?”崔述“且玩此诗醇古朴茂 ,与成、康时诗皆不类” ,方玉润“非躬亲陇亩久于其道者 ,不能言之亲切有味也如是。周公生长世胄 ,位居冢宰 ,岂暇为此 ?”等种种否定或怀疑《七月》为周公作之理由 ,均似是而非 ;至于近代以来之“奴隶 (农奴 )作”及“小奴隶主作”等说 ,更近乎凭虚。《七月》为周公作 ,当无所疑  相似文献   

Mobile Agents for Distributed and Heterogeneous Information Retrieval   总被引：1，自引：0，他引：1  

Subrata?DasEmail author  Kurt?Shuster  Curt?Wu  Igor?Levit 《Information Retrieval》2005,8(3):383-416

The heterogeneous, distributed and voluminous nature of many government and corporate data sources impose severe constraints on meeting the diverse requirements of users who analyze the data. Additionally, communication bandwidth limitations, time constraints, and multiple data formats impose further restrictions on users of these distributed data sources. In this paper, we present an Agent-based Complex QUerying and Information Retrieval Engine (ACQUIRE) for large, heterogeneous, and distributed data sources. ACQUIRE acts as a softbot or interface agent by presenting users with a view of a single, unified, homogenous data source, against which users can pose high-level declarative queries. ACQUIRE translates each such user query into a set of sub-queries by employing a combination of planning and traditional database query optimization techniques. ACQUIRE then spawns a set of mobile agents corresponding to these sub-queries, which in turn retrieve the data from various distributed data sources by dynamically optimizing the retrieval strategy as it is carried out. These mobile agents carry with them data-processing code that can be executed at the remote site, thus reducing the size of data returned by the agent. When all mobile agents have returned, ACQUIRE filters and merges the retrieved data and presents the results to the user. While the system is still very much a work in progress, current validation experiments on simulated NASA Distributed Active Archive Centers (DAACs) have demonstrated that complex queries can be effectively decomposed and retrieved by this approach.  相似文献   

Learning regional transliteration variants     

Jin-Shea Kuo  Haizhou Li 《Information processing & management》2012,48(1):154-169

This paper conducts an inquiry into regional transliteration variants across Chinese speaking regions. We begin by studying the social association of regional transliterations, followed by postulating a computational model for effective transliteration extraction from the Web. In the computational model, we first propose constraint-based exploration by incorporating transliteration knowledge from transliteration modeling and predictive query suggestions from search engines into query formulation as constraints so as to increase the chance of desired transliteration returns in learning regional transliteration variants. Then, we study a cross-training algorithm, which explores the attainably helpful information of transliteration mappings across related regional corpora for the learning of transliteration models, to improve the overall extraction performance. The experimental results show that the proposed method not only effectively harvests a lexicon of regional transliteration variants but also mitigates the need of manual data labeling for transliteration modeling. We also carry out an investigation into the underlying characteristics of regional transliterations that motivate the cross-training algorithm.  相似文献   

Efficient probabilistic XML query processing using an extended labeling scheme and a lightweight index     

Jung-Hee Yun  Chin-Wan Chung 《Information processing & management》2012

Recently there is a growing interest in the data model and query processing for probabilistic XML data. There are many potential applications of probabilistic data, and the XML data model is suitable to represent hierarchical information and data uncertainty of different levels naturally. However, the previously proposed probabilistic XML data models and query processing techniques separate finding data matches with evaluating the probabilities of results. Therefore, they should repeatedly access the data and need to get full data of paths given in queries to calculate the probabilities of results.  相似文献   

“狗咬邮递员”查询研究     

朱婧 《科技通报》2012,28(3):130-133

"狗咬邮递员"查询是移动点最近邻查询问题的派生问题,是要找到当狗和邮递员以某种恒定速度运动时狗能最快到达的邮递员集合。与一般的移动点最近邻查询不同,"狗咬邮递员"查询中,移动点以恒定速度运动。针对"狗咬邮递员"问题的特殊性,提出在Voronoi图基础上引入三维坐标系并构建移动Voronoi图,利用反向最近邻查询思想,通过检验内部区域和外部区域是否被破坏从而确定查询点能最快到达的点是否因为点的移动而发生改变,最终找到每一时刻移动查询点所能最快到达的点。  相似文献