高师生创造性思维发展的研究--高师生图形创造性思维和数字创造性思维的发展

采用图形创造性思维和数字创造性思维测验，对283名高师院校本科学生进行了测试，考察了高师生图形创造性思维和数字创造性思维发展的性别、年级和专业特点，结果表明：高师生图形创造性思维和数字创造性思维存在性别和专业差异，年级差异不大。     

Who can verify this? Finding authorities for rumor verification in Twitter

A large body of research work has proposed verification techniques for rumors spreading in social media that mainly relied on subjective evidence, e.g., propagation networks or user interactions. Alternatively, in this work, we introduce the task of authority finding in social media, in which we aim to find authorities, for given rumors spreading specifically in Twitter, who can help verify them by providing exclusive/convincing evidence that supports or denies those rumors. We release the first test collection for Authority FINding in Arabic Twitter (AuFIN). The collection comprises 150 rumors (expressed in tweets) associated with a total of 1,044 authority accounts and a user collection of 395,231 Twitter accounts (members of 1,192,284 unique Twitter lists). Moreover, we propose a hybrid model that employs pre-trained language models and combines lexical, semantic, and network signals to find authorities. Our experiments show that the textual representation of users is insufficient, and incorporating the Twitter network features improved the recall of authorities by 34%. Moreover, semantic ranking is inferior to the lexical and network-based ranking in terms of precision, but superior in terms of recall. Therefore, combining both the semantic and network-based ranking achieved the best overall performance achieving a precision of 0.413 and 0.213 at depth 1 and 5 respectively. We show that rumor expansion by exploiting Knowledge Bases improves the recall of authorities by up to 15%. Furthermore, we find that SOTA models for topic expert finding perform poorly on finding authorities. Finally, drawing upon our experiments, we discuss failure factors and make recommendations for future research directions in addressing this task.     

A language modeling framework for expert finding

Statistical language models have been successfully applied to many information retrieval tasks, including expert finding: the process of identifying experts given a particular topic. In this paper, we introduce and detail language modeling approaches that integrate the representation, association and search of experts using various textual data sources into a generative probabilistic framework. This provides a simple, intuitive, and extensible theoretical framework to underpin research into expertise search. To demonstrate the flexibility of the framework, two search strategies to find experts are modeled that incorporate different types of evidence extracted from the data, before being extended to also incorporate co-occurrence information. The models proposed are evaluated in the context of enterprise search systems within an intranet environment, where it is reasonable to assume that the list of experts is known, and that data to be mined is publicly accessible. Our experiments show that excellent performance can be achieved by using these models in such environments, and that this theoretical and empirical work paves the way for future principled extensions.     

基于SLSD道路网络模型的最优路径算法

提出了基于单线单向（SLSD）道路网络的最优路径算法.不同于传统网络,在SLSD网络中,路元素被抽象成网络的节点,且都是单向单线的;而道路节点被抽象成网络的链接.该网络模型可以很好地表述拐弯限制、回路以及多条道路存在于2个路口等只有超图模型才能很好表示的真实路网情形.基于此网络模型,给出了相关的最优路径算法,并且证明了将超图转化为SLSD道路网络后,A＊及Diskstra算法可以不加修改直接用于计算任何真实路网的最优路径.最后,结合新加坡道路网络数据,给出了一个预先计算的两步法最优路径算法及其计算结果,验证了所提出的模型和算法.     

论我国拾得遗失物制度的不足与完善

拾得遗失物,是民法物权中一项重要的内容,立法上存在肯定主义和否定主义两种立法例.在大多数国家的理论和立法实践上,拾得遗失物是所有权的特殊取得方式之一,拾得人可以在特定情形下取得遗失物的所有权或者报酬请求权.我国当前民事立法提倡拾金不昧的美德,否定了拾得人在无人认领遗失物的情形下取得遗失物所有权和在所有权人认领遗失物后请求所有权人支付一定报酬的权利,这与我国当前的现实情况存在差距,同时也背离了世界各国在拾得遗失物相关立法上的一般趋势,产生了一系列的问题.因此,要在未来立法中明确规定拾得人的报酬请求权和在特殊情形下取得遗失物所有权的权利,以使法律能够更好地起到指导实践的作用.     

Seeing Measurement Successful at Antarctic Taishan Station

<正>In February 2014,the 30th Chinese Antarctic inland expedition team reported that they have successfully conducted the seeing measurement at the Antarctic Taishan Station using a Differential Image Motion Monitor(DIMM)developed by the Nanjing Institute of Astronomical Optic and Technology(NIAOT),Chinese Academy of Sciences.In astronomy,seeing is a physical parameter that describes the irregular movement and blur of the star     

二元频谱干涉测距方法及其统计误差分析

讨论了二元频谱干涉的测距方法,分析了二元频谱干涉测距方法的统计误差,通过对比得出了二元频谱干涉测距方法的测量精度高于一元频谱干涉测距方法测量精度的结论,为频谱干涉类无线电定位,无线电测距及激光测距等精密仪器的方案设计提供了一定的理论依据。     

一种简易实用的电气设备故障排查实验装置

为有效提高学生的船舶电气设备维修实践能力,提出了一种简易实用的电气控制线路故障排查实验系统设计方法。该方法在电气设备的实际电路中嵌入中间继电器,通过控制继电器的通断来实现电气故障模拟,真实性和可操作性好。通过实例分析了船舶电气控制设备的典型故障及其模拟实现方法,完成了相应的实验装置研制并应用于实践教学中,取得了良好的教学效果。     

贵州西部青铜文化遗存的考古发现与研究——夜郎文化研究之一

目前发现的贵州西部青铜文化遗存以中小型墓葬和居住遗址为主，时代可早至商周时期，但集中于战国晚期至西汉晚期，主要分布在毕节、六盘水、兴义三个大的区域内，且各区域之间文化差异明显，缺乏统一的文化特征。已往的研究主要讨论了这些文化遗存的时代、内涵特征及其与外来文化的关系。同时提出这些研究中存在的主要问题和将来需要改进的几点意见。     

连云港市06届特殊学校毕业生就业情况调查研究

本文从连云港市06届特殊学校毕业生的就业情况调查着手,从课程设置、就业指导、家长态度等几方面分析特殊学校毕业生就业难的原因,并提出相应对策。