我国竞技体育纠纷非诉讼解决机制框架体系的构建

采用文献资料,逻辑分析、专家访谈及比较分析等方法,从竞技体育纠纷基本含义、基本特征入手,分析竞技体育纠纷产生的主要原因并对我国竞技体育纠纷解决机制的现状进行了分析,论证了竞技体育非诉讼解决机制优势和局限性。依据建立我国竞技体育纠纷非诉讼解决机制的法源,重点对构建我国竞技体育纠纷非诉讼解决机制的框架体系进行了探索。     

“跟我学汉语”语法练习题型考察与分析

本文选取了专为海外中学生编写的对外汉语教材“跟我学汉语”（英语版）作为研究材料,对这套教材的语法练习题型进行考察和分析,并结合青少年的心理特点总结了这套教材语法练习编写的成功之处,以期为海外青少年对外汉语教材语法练习的编写提供借鉴。     

基于层次结构的网页自动分类系统的设计与实现

构建了基于层次结构的网页自动分类系统;探讨了该系统中涉及的各项关键技术和构建方法;实现了平面分类和层次分类两种分类方法,并对两种分类方法在网络基础教育资源的环境下进行测试,给出了评价与分析.实验表明,层次分类方法有利于提高分类效率和分类效果.     

Distributed cooperative controller design considering guidance loop and impact angle

This paper presents an integrated distributed cooperative guidance and control scheme for multiple missiles to attack a single target simultaneously at desired impact angles. The scheme is divided into two parts: individual part and cooperative part. For the individual part, partial integrated guidance and control method is adopted to generate the elevator deflection (which is a realistic control input) to ensure that the missiles fly along their respective desired line of sight and hit the target; this is in contrast to previous works which analyze only the engagement dynamics and use missile accelerations as the control input, however, the proposed controller also considers the missile dynamics, thus enabling the implementation of an autopilot. For the cooperative part, using only information from adjacent missiles, the proposed distributed cooperative controller can make all missiles hit the target simultaneously. Hence in this scheme, each missile can hit the target at desired angles and at the same time, thus achieving salvo attack. Simulations are performed to verify the effectiveness of the scheme.     

脑科学与类脑研究概述

脑科学和类脑智能技术是两个重要的前沿科技领域;二者相互借鉴、相互融合的发展是近年来国际科学界涌现的新趋势。脑科学研究对大脑认知神经原理的认识,提升了人类对自身的理解和脑重大疾病的诊治水平,也为发展类脑计算系统和器件、突破传统计算机架构的束缚提供了重要的依据。文章概括性地总结了国际脑科学和智能技术领域的总体进展,未来15年的发展趋势和有望解决的重大科学问题,以及我国在这两领域发展的特色和优势。     

新型研发机构促进理工类高校科技成果转化的路径分析

针对理工类高校科技成果转化的现状,从新型研发机构的视域出发,从高校响应科技成果转化政策的解释框架、产学研深度融合的技术创新体系、高校科技成果产业化价值链等方面的探究,对新型研发机构促进科技成果转化的特色发展模式进行分析,提出有助于推动理工类高校科技成果转化的对策建议.     

在线商品虚假评论信息治理策略研究

在线商品虚假评论信息不仅误导消费者购物决策与商家销售评估,而且严重干扰了在线商品交易平台的意见挖掘结果。本文针对国内外对在线商品虚假评论治理的研究现状,从法律监管和鉴别模型两个层面重新定位了其治理目标,指出应根据不同的治理对象,从监管虚假评论形成路径的基本要素、减弱虚假评论形成路径的促进因素、激励正常消费者作出真实有效的评论并优化虚假评论识别模型的鉴别准确率4个方面完善在线商品虚假评论信息的治理途径,并详细阐述了各治理途径的具体实施办法以及今后优化和完善的建议与对策。     

国内外政务社交媒体研究评述及展望

[目的/意义] 本研究对国内外政务社交媒体相关研究进行梳理,分析现有研究的特点及不足,以期为政务社交媒体研究提供参考和借鉴。[方法/过程] 通过文献调研,对2014-2019年的国内外政务社交媒体研究进行系统归纳,梳理现有研究的特点及不足,以期为政务社交媒体研究提供参考和借鉴。[结果/总结] 分析发现近年的政务社交媒体研究多为量化研究,分析方法包括内容分析法、统计分析法、社会网络分析法、机器学习方法,研究主题集中于政务社交媒体的运营管理、内容挖掘、应急管理、功能与作用。现有研究存在着数据来源较为单一、数据分析方法有待优化、缺乏系统规范的研究范式等方面的不足,并从政府和公众两个视角为政务社交媒体的未来研究提供思路。     

A heuristic hierarchical scheme for academic search and retrieval

We present PubSearch, a hybrid heuristic scheme for re-ranking academic papers retrieved from standard digital libraries such as the ACM Portal. The scheme is based on the hierarchical combination of a custom implementation of the term frequency heuristic, a time-depreciated citation score and a graph-theoretic computed score that relates the paper’s index terms with each other. We designed and developed a meta-search engine that submits user queries to standard digital repositories of academic publications and re-ranks the repository results using the hierarchical heuristic scheme. We evaluate our proposed re-ranking scheme via user feedback against the results of ACM Portal on a total of 58 different user queries specified from 15 different users. The results show that our proposed scheme significantly outperforms ACM Portal in terms of retrieval precision as measured by most common metrics in Information Retrieval including Normalized Discounted Cumulative Gain (NDCG), Expected Reciprocal Rank (ERR) as well as a newly introduced lexicographic rule (LEX) of ranking search results. In particular, PubSearch outperforms ACM Portal by more than 77% in terms of ERR, by more than 11% in terms of NDCG, and by more than 907.5% in terms of LEX. We also re-rank the top-10 results of a subset of the original 58 user queries produced by Google Scholar, Microsoft Academic Search, and ArnetMiner; the results show that PubSearch compares very well against these search engines as well. The proposed scheme can be easily plugged in any existing search engine for retrieval of academic publications.     

论中国古代藏书楼的文化意义

藏书楼是藏书活动的建筑载体,是我国传统文化的重要标志之一。中国古代藏书楼在其命名、建筑设计、空间布局和环境建设等方面独具特征,而这些特征的产生既有主观原因,也有客观原因。藏书楼对我国传统文化的传承和保护起到了重要作用,应该对现存藏书楼加以大力保护。