新冠肺炎后演艺行业的走势

2020年,演艺行业虽受新冠肺炎疫情影响,但需求始终存在,并能够随着经济的增长而增长。5G、大数据中心、人工智能和工业互联的发展,将推动演艺行业在在线化、专业音视频与消费类产品融合发展。     

论OECD成人技能评估的演变 ——从IALS到ALL再到PIAAC

OECD从20世纪90年代起就开始对成人技能的水平进行评估,先后推出了IALS、ALL与PIAAC三大成人技能评估.历经20多年的发展,OECD进行成人技能评估的目标、内容和指标框架也不断扩展、深入和细化.通过对OECD的一系列成人技能评估进行梳理和分析,以期理解成人技能的内涵.     

Coupled matrix factorization and topic modeling for aspect mining

Aspect mining, which aims to extract ad hoc aspects from online reviews and predict rating or opinion on each aspect, can satisfy the personalized needs for evaluation of specific aspect on product quality. Recently, with the increase of related research, how to effectively integrate rating and review information has become the key issue for addressing this problem. Considering that matrix factorization is an effective tool for rating prediction and topic modeling is widely used for review processing, it is a natural idea to combine matrix factorization and topic modeling for aspect mining (or called aspect rating prediction). However, this idea faces several challenges on how to address suitable sharing factors, scale mismatch, and dependency relation of rating and review information. In this paper, we propose a novel model to effectively integrate Matrix factorization and Topic modeling for Aspect rating prediction (MaToAsp). To overcome the above challenges and ensure the performance, MaToAsp employs items as the sharing factors to combine matrix factorization and topic modeling, and introduces an interpretive preference probability to eliminate scale mismatch. In the hybrid model, we establish a dependency relation from ratings to sentiment terms in phrases. The experiments on two real datasets including Chinese Dianping and English Tripadvisor prove that MaToAsp not only obtains reasonable aspect identification but also achieves the best aspect rating prediction performance, compared to recent representative baselines.     

长白山阔叶红松林林隙特征及对树种更新的影响

长白山阔叶红松林实际林隙面积小于250m2的林隙数量占被调查林隙的70以上，扩展林隙面积大部分分布在100m2-500m2之间（70%左右），林隙最大面积大部分分布在300m2-900m2之间，林隙模型所模拟的面积应在500m2-900m2之间。40%的阔叶红松林林隙是风干扰形成的。每个林隙的平均林隙形成木的数量是2.65株。最大林隙形成木集中分布在50cm-60cm和60cm-70cm两个径级内，占总数量的50%以上，红松、紫椴、蒙古栎和春榆在最大林隙形成木中占95%以上，其中紫椴（40%）所占比例最大，红松（34.5%）次之。林隙内的树种更新密度比林冠下提高了30%左右。根据树种对林隙的反应可分为4类：鱼鳞云杉、水曲柳、青楷、白扭、红松、臭冷杉、胡桃楸和色木对林隙反应中等；紫椴、裂叶榆和春榆对林隙有强烈反应；白桦、山杨、蒙古栎和落叶松需要强烈林隙干扰才能引起树种更新。     

An investigation of the strategic information systems planning success in Chinese publicly traded firms

Based on a survey of Chinese publicly traded firms, we report on the status of the strategic information systems planning success in China. Through this analysis of the survey data, we found that Chinese managers are not using IS as a competitive weapon though they have already realized some aspects of strategic information system planning. We also examined the differences between Eastern and Western cultural and political context factors to explain this phenomenon.     

浅谈Win2k Server环境中图书馆服务器的安全配置

从Win2k Server账号的安全管理与设置、IIS的配置、安全审计等方面，论述如何加固Win2kServer服务器，从而保证图书馆数字资源的安全。     

基于LINUX平台的PCI数据采集卡驱动软件设计

以一种PCI数据采集卡为例,介绍在Linux操作系统中PCI设备的内核模块驱动程序设计.该驱动程序已成功地装入EPICS系统,建立了EPICS数据库与PCI数据采集卡的数据通道,在EPICS环境下通过了测试,为EPICS用户提供了一种新的可供选择的I/O接口设备     

农业期刊农药名称使用情况分析

农药名称是农业期刊中经常出现的专有名词,农药名称的多系统命名容易造成使用混淆.以<农药通用名称><农药通用名称及制剂名称命名原则和程序><农药产品标签通则>等为依据,归纳出农业期刊中农药名称常见的不规范形式,并分析农药名称使用不规范的原因,提出了应制订有关各种农药名称编辑规范,加大宣传、贯彻农药名称相关标准的力度,加强使用农药名称的相关部门配合与协调,加大农药标签的检查、监督力度的建议.