基于词-标签概率的多标签文本分类研究

针对多标签文本分类任务中如何有效地提取文本特征和获取标签之间潜在的相关性问题,提出一种CNN(convolutional neural networks)结合Bi-LSTM (bi-directional long short-term memory)的模型.首先,通过CNN网络和最大池化提取文本的特征;然后,利用训练的Labeled-LDA(labeled latent dirichlet allocation)模型获取所有词与标签之间的词-标签概率信息;接着,使用Bi-LSTM网络和CNN网络提取当前预测文本中每个词的词-标签信息特征;最后,结合提取的文本特征,预测与当前文本相关联的标签集.实验结果表明,使用词-标签概率获取文本中词与标签之间的相关性信息,能够有效提升模型的F1值.     

高师地理系教学改革探讨

本文确认学校中的基本矛盾是教育对象和对他们的培养目标之间的矛盾,分析矛盾双方在现阶段的特征,结合地理学的科学体系与发展趋势,提出了在高师地理系实行“3+1”学制改革的设想.分析了实施这一学制改革构想的可能性与面临的主要困难.     

我国优秀女排运动员弹跳力发展及其训练的分析研究

本文通过对我国优秀女排运动员及其后备人材不同年龄阶段弹跳力素质发展的分析研究,探讨女排运动员弹跳力素质发展变化的规律,及其不同年龄阶段主要训练手段的选择．为女排运动员科学选材、科学训练、制定多年训练计划等方面提供理论依据．     

新工科视阈下石油化工类高校应用化学专业课程体系重构

Taking a typical local and industry-orientated applied chemistry major as an example with focusing on the major changes in the form and content of the petrochemical industry, the way to reform the core curriculum system and teaching contents is presented. Based on the changing tendency of refinement of the petrochemical industry, a complete curriculum system with distinctive industry characteristics is set up according to the principles of the emerging engineering education (3E) with several reasonable suggestions. A new model for the construction of a 3E major in chemistry-related majors is suggested. It is a good reference for the construction of curriculum systems for other local and industry-orientated colleges who want to make 3E reform.     

Improving (Q)SAR predictions by examining bias in the selection of compounds for experimental testing

ABSTRACT

Existing data on structures and biological activities are limited and distributed unevenly across distinct molecular targets and chemical compounds. The question arises if these data represent an unbiased sample of the general population of chemical-biological interactions. To answer this question, we analyzed ChEMBL data for 87,583 molecules tested against 919 protein targets using supervised and unsupervised approaches. Hierarchical clustering of the Murcko frameworks generated using Chemistry Development Toolkit showed that the available data form a big diffuse cloud without apparent structure. In contrast hereto, PASS-based classifiers allowed prediction whether the compound had been tested against the particular molecular target, despite whether it was active or not. Thus, one may conclude that the selection of chemical compounds for testing against specific targets is biased, probably due to the influence of prior knowledge. We assessed the possibility to improve (Q)SAR predictions using this fact: PASS prediction of the interaction with the particular target for compounds predicted as tested against the target has significantly higher accuracy than for those predicted as untested (average ROC AUC are about 0.87 and 0.75, respectively). Thus, considering the existing bias in the data of the training set may increase the performance of virtual screening.     

钢琴教学的第一步--提高视谱能力

高等师范音乐专业的扩招以及入学新生普遍音乐基础差的现状,给高师音乐教育的质量带来直接的影响。钢琴课作为一门重要课程,如何以新的对策,对音乐基础差的、甚至不识谱的学生施教,在钢琴必修课的短暂的两年中尽可能获得更好的教学效果,是钢琴教学面临的既紧迫又艰巨的研究课题。开设视唱强化训练课程能迅速提高学生的视谱能力、对乐谱的分析能力,是提高钢琴教学效果,保证高师音乐教育质量的有效措施。     

浅谈汽车维修专业技能型人才的培养

文章阐述了现代汽车技术的发展和维修市场对人才的需求，论述汽车维修专业应如何适应企业和市场的需求，培养出合格的技能型人才。     

自主学习与外语教学

分析了自主学习的定义、自主学习受到普遍关的原因以及自主学习与英语教学中的“低效”问题,提出了在英语教学中培养学生自主学习能力的途径。     

小学英语教师培训的思考

2001年起我国在小学从三年级起普遍开设了英语课。由于我国小学英语教学起步较晚，底子薄，大面积地在小学开设英语课在英语师资配备上出现了很多问题，不少地方为了在小学开设英语课，选派了一些非英语专业毕业的教师经过短期培训，转岗担任英语课。本文就小学英语教师在培训中存在的问题进行分析，提出在师资培训中应注意的几个问题并就小学英语教师的选派上提出了一些看法。     

在技术训练中培养运动员的"篮球意识"

结合篮球技术训练，加强对运动员篮球意识的培养，能够明显提高运动员的篮球技战术水平，以适应现代篮球比赛高速度、高强度和强对抗的要求。采用理论阐述和现状分析的方法，对影响运动员篮球意识的相关因素和培养方法与途径做了较详细的介绍。