论图书馆专业集成化服务模式

专业集成化服务模式是网络信息时代图书馆追求个性化、专业化服务的一种值得探讨的新模式，本文从专业集成化服务模式的概念及特点着手，论述了该模式的实施体系结构、原则方法。     

综合实践活动课教师培训的组织设计

为了在短期内培养足够数量的、能够有效促进综合实践活动课开展的优秀教师，需要对新课教师培训进行组织设计，主要包括组织结构设计和组运行设计两个方面。根据综合实践活动教师培训的组织原则，在组织结构设计方面，我们应该选择适当的培养模式；在组织运行方面，我们需要完善每个管理环节。     

师专综合英语探究式课堂教学探索和实践

英语新课程改革非常强调改变学生的学习方式，倡导探究式学习，培养学生的创新精神和实践能力。通过对师专英语系主干课综合英语探究式学习的教学实践和研究，证明其结果是显著的。     

The role of discordant acculturation attitudes in perceived threat: An analysis of host and immigrant attitudes in Germany

The present research examines discordant acculturation attitudes of host society members and immigrants as an antecedent to intergroup threat. Based on integrated threat theory and the concordance model of acculturation, we posited that discordance on culture maintenance and on desire for contact would predict intergroup threat beyond the influence of other antecedents of threat, such as in-group identification, knowledge, and negative contact. A study with 202 German host society members and 151 Turkish and Italian immigrants was conducted. In line with our assumptions, path analyses revealed that culture discordance and contact discordance contribute independently to the prediction of realistic threat, symbolic threat, and intergroup anxiety for host society members and immigrants. Moreover, differences in threat between cultures were mediated by the discordance in acculturation attitudes.     

关于《七月》之作者问题

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     

Mobile Agents for Distributed and Heterogeneous Information Retrieval

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.     

传输综合网管系统研究

论述了建设传输综合网管的必要性,在系统分析传输综合网络管理系统的难点,提出了切合实际解决方案;综合考虑上海电信实际现状,从建设目标、系统架构等方面制定了传输综合网管的技术路线并成功部署了该系统。     

Learning regional transliteration variants

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.     

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

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.     

“狗咬邮递员”查询研究

"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。