我国视频网站发展态势与前瞻

网络视频在我国经历了七年多的竞合发展。与国外的差异化发展模式不同,我国的视频网站呈现内容多样、各有侧重的特点。目前视频网站既有"旧病"又有"近忧",用户粘性不强成为其面临的核心问题。未来视频网站发展应在内容和技术两个层面着力。在内容层面,应建立内容生态圈,发展网络院线;在技术层面,应实现情境化播放,利用好大数据挖掘技术。     

Network public goods with asymmetric information about cooperation preferences and network degree

We propose a game theoretical model of one-shot network public goods formalizing the ‘closure argument’ that cooperation is more frequent in denser groups or networks. Equilibrium analyses show that (i) an ‘inefficiency problem’ exists: players all preferring mutual cooperation need not all cooperate; (ii) in dyads, groups and networks with degree independence, first order stochastic dominance shifts of the distribution of cooperation preferences or the degree distribution (weakly) increases cooperation, and (iii) the latter result does not hold for networks with degree dependence. Hence the closure argument always holds in networks satisfying degree independence but not in other networks.     

Structural effects of network sampling coverage I: Nodes missing at random

Network measures assume a census of a well-bounded population. This level of coverage is rarely achieved in practice, however, and we have only limited information on the robustness of network measures to incomplete coverage. This paper examines the effect of node-level missingness on 4 classes of network measures: centrality, centralization, topology and homophily across a diverse sample of 12 empirical networks. We use a Monte Carlo simulation process to generate data with known levels of missingness and compare the resulting network scores to their known starting values. As with past studies (0035 and 0135), we find that measurement bias generally increases with more missing data. The exact rate and nature of this increase, however, varies systematically across network measures. For example, betweenness and Bonacich centralization are quite sensitive to missing data while closeness and in-degree are robust. Similarly, while the tau statistic and distance are difficult to capture with missing data, transitivity shows little bias even with very high levels of missingness. The results are also clearly dependent on the features of the network. Larger, more centralized networks are generally more robust to missing data, but this is especially true for centrality and centralization measures. More cohesive networks are robust to missing data when measuring topological features but not when measuring centralization. Overall, the results suggest that missing data may have quite large or quite small effects on network measurement, depending on the type of network and the question being posed.     

Fragments and Links: Organizational Actor‐World of the Harry Potter Phenomenon

The article seeks to develop an Actor‐Network Theory perspective on the relationship between organization and literature by focusing on the Harry Potter phenomenon. The latter is seen as an example of how contemporary popular literature does not stop at itself, but rather supersedes itself by spinning its own truly impressive organizational actor‐network. This industrious industrial entanglement challenges what may be called the ‘disembodied’ conceptualization of literature—the conceptualization that is centred on the contents of works of fiction alone. When the contents of the literary texts are decentred in that they are taken as but one (however important) actor of the actor‐world that comes to be known by their name, other actors become more visible that help to conceptualize Harry Potter as an organizational, as much as a literary, phenomenon.     

Looking for Joan of Arc: Collaboration in the Rise and Fall of Heroes

This article adapts Actor Network Theory to illustrate the construction of heroes and their abandonment. It focuses more specifically on the rise and fall of an iconic New Zealand private training enterprise, Carich, and its founding entrepreneur Caron Taurima. Drawing on media, web sources and interviews, the study reflects on the uncritical way heroes are constructed and makes comparisons with the story of Joan of Arc. It shows how the notion of ‘Carich‐as‐a‐successful‐business’ was encouraged and developed by human and non‐human actors, how revenues were inflated, and how the business founder’s personal charisma superseded hard financial questions. The article problematizes the roles of various actors, particularly hero‐seeking media, politically‐correct Crown agencies, and those supposedly objective umpires of business acumen who offer national awards to ‘outstanding’ entrepreneurs.     

网络交际中的字母词及其发展走势说略

网络交际中,字母词凭借键盘直接输入的便利及书写形式的简洁,应用更加灵活、多样。研究发现,网络交际中的字母词,其数量趋于稳定,由西文字母构成的字母词整体使用上呈衰减的趋势;网络交际中的字母词因便利传播的需要而不可能消失,但将会趋向与方块汉字和汉语拼音字母并存、共生的局面。     

基于博客的大学生网络素养教育策略研究

随着人类社会信息化进程的加快,互联网对当代大学生的价值观念和思维方式产生了越来越大的冲击,给高校思想政治教育工作带来了严峻的挑战。通过剖析博客这一网络信息交互平台在高校大学生网络素养教育中的重要作用,探讨利用博客加强和改进高校大学生网络素养教育工作的有效途径。     

网络环境对基层社会矛盾的影响探讨

现阶段基层社会矛盾表现出新的特点,特别是网络环境对基层社会矛盾产生重要影响,表现为:网络扩散放大了改革中的利益格局失衡、集体无意识、群体极化倾向、网民狂欢心理、互联网对司法的影响、网络中的去个性化行为等不同方面。针对这些不良影响提出了降低网络环境对基层社会矛盾影响的对策和网络环境下实现对基层有效管理的对策,对于化解基层社会矛盾和社会冲突,保证国家长治久安和构建和谐社会具有十分重要的意义。     

社交网的远程学习应用研究

随着计算机互联网技术飞速发展,基于互联网技术的远程学习形式层出不穷,探索提高远程学习质量的适宜远程学习的技术手段方兴未艾。通过对国内外有关远程学习理论及技术的阐述及相关调研、对社交网相关技术和应用进行分析,构建了基于SNS技术的远程学习新形式。借助SNS技术提高学习的兴趣,进而改善远程教育的交互,还可应用于日校的辅助教学、培训等领域。     

关于网络人际信任危机的探讨

近年来,网络科学技术的飞速发展,大大加强了人与人之间沟通与交流的同时,也带来了网络交往过程中的人际信任危机问题。人们对其＂信任＂之余,也逐渐产生了＂怀疑＂。由此,试分析网络人际信任危机产生的原因,并尝试提出相应的解决对策具有重要的现实意义。