Becoming a historical thinker might be the first step for developing a consciousness of reasoned conciliation

The goal of this presentation is to examine the hypothesis that the ethno-political conflict in Israel can be utilized in history education to foster learning of historical thinking and to construct a tolerant space within the education system that will enable the structuring of in-principle criteria for coexistence prior to the ending of the conflict. I assumed that inculcation of historical knowledge in the education system in Israel by means of an attentive and reflexive cultural dialogue, which sensitively and skillfully confronts contradictory historical narratives as an everyday learning reality in class, will help structure a conciliatory consciousness of the kind we seek.     

面向新闻领域的中文实体关系抽取

随着互联网技术的快速发展,人们能够及时地获取大量的新闻文本信息,如何从新闻中自动获取关键信息,把新闻中具有价值的信息转化为结构化数据,从而快速有效地获取有用的知识已是迫切需求。实体关系抽取是获取关键信息的方法之一,但目前关于中文的实体关系抽取工作较少。针对基于长短时记忆网络的中文实体识别模型难于提取长距离的依存关系特征和句法特征问题,提出利用双向树形长短时记忆神经网络提取依存句法树的结构特征。在提取的特征的基础上,使用条件随机场判断实体的类别和边界,并在实体识别模型中加入注意力机制提高模型的性能。在《人民日报》数据集和ACE 2005语料库上训练模型,验证了模型的有效性。     

基于HAR—RV模型的中国证券市场异质性研究

随着高频数据可以越来越方便的获得,过去的ARCH模型及GARCH模型已经不能满足高频数据研究的需要。相比于模型波动率,已实现波动率能够更直接、准确地描述波动率的特征。研究表明,已实现波动率具有长记忆特性,其解释之一即为异质市场假说,即市场中存在异质交易者。文章选取了HAR—Rv模型对已实现波动率进行建模,并且通过回归分析,证明了我国股票市场交易者存在异质性。     

一种级联两箱通用数字预失真器及其辨识算法

提出了一种由单形规范线性分段(SCPWL)函数与记忆多项式级联的数字预失真器,并给出了复数域两步最小二乘参数辨识算法。不同于以往一种预失真器适用一种功放模型的情况,所提的预失真算法利用SCPWL函数的分段特性以及记忆多项式的非线性记忆特性,在完成参数辨识的同时自动地调整结构,可适用于传统以及强非线性新型功放模型的线性化补偿。将所提预失真器分别应用于传统记忆多项式、两箱模型以及新型包络跟踪功放。经过计算机仿真,功放输出的幅频特性和频谱曲线表明所提预失真器能够有效地补偿多种功放的非线性特性。算法仿真比较结果也表明,针对包络跟踪功放,所提复数两步最小二乘算法的邻道泄漏比(ACLR)可改善约35 dB,性能优于最小均方(LMS)类算法约30 dB。     

Tourist narratives about the dissonant heritage of the Borderlands: the case of South-eastern Poland

ABSTRACT

One of the important effects of the political transformation after 1989 in Eastern Europe is the development of tourism and increasing mobility of citizens from many countries, previously separated by the ‘Iron Curtain’. The process of economic and socio-cultural change justifies the debate regarding the future, but also on the legacy of the past. As for South-eastern Poland, tourism has been used as an important narrative tool for spreading, strengthening or weakening ethnic and national stereotypes by promoting cultural resources and performances that enable cooperation and mutual understanding. However, it can also be a source of potential fears or conflicts, for instance by creating controversial tourist attractions and stories about certain historical events. This paper discusses strategies of ‘past presencing’ of the heritage of South-eastern Poland border regions in public life, culture and tourism, drawing on a few examples which show different ways of restoring the memory of the former Eastern Borderlands. The theme village called ‘The Borderland Settlement’ and the historical reconstruction ‘Volyn 1943–2013’ relate to the main myths and the active memory concept that frame tourist narratives and contribute to the reinvention and reinterpretation of dissonant heritage.     

Do global CO2 emissions from fossil-fuel consumption exhibit long memory? a fractional-integration analysis

In this article we use an autoregressive fractionally integrated moving average approach to measure the degree of fractional integration of aggregate world CO₂ emissions and its five components – coal, oil, gas, cement, and gas flaring. We find that all variables are stationary and mean reverting, but exhibit long-term memory. Our results suggest that both coal and oil combustion emissions have the weakest degree of long-range dependence, while emissions from gas and gas flaring have the strongest. With evidence of long memory, we conclude that transitory policy shocks are likely to have long-lasting effects, but not permanent effects. Accordingly, permanent effects on CO₂ emissions require a more permanent policy stance. In this context, if one were to rely only on testing for stationarity and non-stationarity, one would likely conclude in favour of non-stationarity, and therefore that even transitory policy shocks have permanent effects. Our fractional-integration analysis highlights that this is not the case.     

Involvement theory in constructing bloggers' intention to purchase travel products

Blogs recently have demonstrated their enormous marketing potential, and more and more travel advertisements are being posted in blogs. In light of this observation, this study aims to provide insights into the structural relationship among travel bloggers' involvement level, the advertising effect from blog messages, and travel bloggers' intention to purchase travel products. A travel blogger's purchase intention model was constructed and empirically tested. A total of 900 questionnaires were distributed to identified travel bloggers; 398 valid responses were returned. The data were examined with Structural Equation Modelling (SEM). The results demonstrated the positive impact resulting from the ad effect as well as the ad effect on purchase intention, which could be verified in travel blog environments. It also indicated that high-involvement travel bloggers are more likely to form favourable impressions with regard to ads in travel blogs. Travel blogs play a positive role in the processing of ad messages; brand management is essential to business marketers since brand attitude is the most influential factor related to the ad effect on purchase intention. Meanwhile, while ad attitude is not significantly effective concerning purchase intention, it remains essential in forming brand attitudes. Several implications for posting advertisements in travel blogs will be discussed and suggested in this paper.     

企业为何要即兴运作:对中国企业战略决策风格的一个检验

文章以中国企业为研究对象,全面探究了其战略决策中的即兴运作行为,认为即兴运作作为一种可供选择的战略行动模式而值得关注.文章的研究结论表明:即兴运作在中国企业是一个较为普遍的现象.企业对战略行动的选择是由多种因素综合驱动的,当企业的组织记忆水平越高、企业家导向越明显以及所面对的竞争环境不确定性程度越高时,企业就越可能采取即兴运作的战略行动方式;即兴运作虽然会对战略行动绩效产生负面影响,但组织柔性会显著降低其负面作用.     

High commitment work system,transactive memory system,and new product performance

Although scholars find that the transactive memory systems can improve new product performance, few studies have empirically examined how managers can induce a transactive memory system in new product development teams with a set of systematic management practices. Based on the theoretical argument about human resource system in the strategic human resource management literature, this study proposes that implementing a set of coherent human resource management practices with workers in new product development teams can induce a transactive memory system in the team. Following previous scholars, this study calls this set of coherent human resource management practices as the high commitment work system. With survey data collected from 336 new product development engineers of 73 new product development teams in 73 firms, this study finds that transactive memory system mediates the positive relationship between the high commitment work system implemented with workers in new product development teams and new product performance.