Object detection based on visual memory: a feature learning and feature imagination process

ABSTRACT

Visual memory plays an important role for the human’s visual system to detect objects. The features of an object stored in the visual memory have much lower dimensions than the features contained within an image. We simulate the visual memory as a feature learning and feature imagination (FLFI) process to build an object detection algorithm. The method is constructed by a bottom-up feature learning and a top-down feature imagination. The proposed object detection method is tested using publicly available benchmark data sets, and the result indicates that it is fast and more robust.     

Process innovation capability and subsequent collaborative team performance in travel planning: a knowledge exchange platform perspective

Purpose: Backpacker tourism is flourishing in this century as the high development of Internet technology which enables travellers to search for resources they need easier. The research goal of this study was to exam how virtual skill and collective efficacy affect process innovation capability and subsequent team performance of collaborative design team in a virtual community. Design/methodology/approach: In this study, we formulated the virtual team model from the perspectives of open innovation paradigm and virtual competence, and we collected virtual community participation samples from the online communities. Invitation emails were delivered to numerous trip plan initiators in two well-known online travel communities for filling survey questionnaires for this study. In total, 3000 invitation messages were mailed, of which 373 were returned completed. The model and hypotheses were tested by structural equation modelling. Findings: Virtual competence, including collective efficacy and virtual media skill, is the essential key to facilitate process innovation capability and subsequent team performance success. Besides, knowledge sharing significantly moderates the relationship between process innovation capability and the team performance. Originality/value: Backpackers in the online travel communities have to have not only the willingness to collaborate, but also the abilities of using the correct tool to help with their tasks. When a self-efficacy gets into collective efficacy, it enables the collaborative team to develop with good virtual competencies. Accordingly, trip plan initiator and participants of a virtual team are as expertise contributors between conformity in online communities and online compulsive control tendencies.     

Systemic financial risk early warning of financial market in China using Attention-LSTM model

We propose an Attention-LSTM neural network model to study the systemic risk early warning of China. Based on text mining, the network public opinion index is constructed and used as a training set to be incorporated into the early warning model to test the early warning effect. The results show that: (i) the network public opinion is the non-linear Granger causality of systemic risk. (ii) The Attention-LSTM neural network has strong generalization ability. Early warning effects have been significantly improved. (iii) Compared with the BP neural network model, the SVR model and the ARIMA model, the LSTM neural network early warning model has a higher accuracy rate, and its average prediction accuracy for systemic risk indicators has been improved over short, medium and long terms. When the attention mechanism is included in the LSTM, the Attention-LSTM neural network model is even more accurate in all the cases.     

A train of thought in product experientiality: Working memory,distraction, and inconsistencies in cue order effects

The sequence of informational cues and the level of distraction have an impact on the judgment of a product’s quality and preference. Two quasi-experimental studies (N_total = 340) investigate the influence of the force behind the processing of these cues – working memory (WM). Previous research found that, in the presence of a distractor, high WM individuals are more able to recall the initial cue, and thus derive their product judgment from the initial strong cue. Study 1 contradicts these findings and raises important methodological questions regarding the conceptualization of strong and weak cues. Specifically, commonly accepted strong cues (e.g., product reputation) might not influence consumers as expected. Additionally, in a sequence of product evaluation with high vs. low degree of experientiality, study 2 reveals that consumers tend to show a primacy effect that is stronger for higher levels of WM capacity. Moreover, in a sequence of assessing low vs. high degree of experientiality products, consumers reveal stronger recency effects, thus showing that WM reinforces this recency effect. Our findings have important implications for marketers by suggesting that consumers with high WMC are more able to process complex stimuli and retrieve previously presented information on a product quality. These consumers also have a higher tendency to retrieve more information from product scenarios with a high degree of experientiality.     

农村集体经济组织与农民专业合作社协同扶贫模式创新:重庆例证

农村集体经济组织和农民专业合作社是与农民联系较为紧密的两类经济组织,是贫困地区打赢脱贫攻坚战的重要内生性力量。但在实践中,受农村集体经济组织市场主体地位不明确、承担市场经营风险能力弱及农民专业合作社总体规模偏小、脱贫带动力不强等因素影响,两类主体的扶贫作用都未能得到充分发挥。重庆市城口县是国家扶贫开发工作重点县,在近年来的脱贫攻坚中,一方面普遍性地成立了新型农村集体经济组织,作为承接相关政府部门扶贫资源、开展村集体资产运营管理的平台;另一方面通过平等协商将村集体经济组织承接的扶贫资源以入股方式投入当地运行规范、实力较强的农民专业合作社,以获取相对稳定的分红收益,并优先用于增加贫困户收入。该模式既为村“两委”参与市场活动和承接政府扶贫资源提供了有效载体,又较好地保证了农民专业合作社等市场主体的经营自主权,有利于构建激励兼容、多方共赢的长效扶贫机制,是有镜鉴价值的扶贫模式创新。     

目击证人的错误记忆与刑事司法公正刍论

目击证人的证言对于刑事案件的破解和刑事诉讼活动有非常重要的意义，但需要注意的是目击者的错误记忆在多种因素作用下对案件会有不当影响，针对不同案件类型有不同的表现方式。这就需要我们对目击证人的证言在法庭鉴证、程序规则、证据链条方面更严谨细致地予以审查和判断，从而实现刑事司法的正义价值追求。     

Inked: historic African-American beach site as collective memory and group ‘Third Place’ sociability on Martha’s Vineyard

Using data gained from ethnographic research and interviews, this article examines ‘third place’ sociability in the social interactions of the Polar Bears of Martha’s Vineyard, a group of predominantly but not exclusively middle-aged and senior African-American men and women who swim, exercise and socialise together each morning at ‘the Inkwell’ beach. Using Georg Simmel’s concept of sociability and Ray Oldenburg’s third-place theoretical framework, this study explores the key role of the Monday communal breakfast and the function of conversation in establishing bonds between individuals. It further investigates the promotion of strong feelings of social connectedness, belonging, social support, social capital gains and community among its group members. The ongoing sociability and informal rules of the Polar Bears of Martha’s Vineyard has enabled it to become a model group demonstration of third-place community building. The importance of race, class and place is socio-historically investigated within the broader social context of the popular racialised section of the beach, ‘the Inkwell’, of African-American community life, and within the sub-community milieu of group social interaction.     

农村宅基地使用权申请审批问题研究——基于地方立法文本的分析

地方立法中的申请审批条款在一定程度上决定着我国农村宅基地申请审批的实际状况。通过对地方立法文本中关于申请审批的立法模式和内容构成的统计分析，发现我国目前宅基地申请人的资格不一，审批中农村集体经济组织主体位置虚缺，而且宅基地立法层级很低，立法清理工作不及时。我国今后应明确农村集体经济组织成员的内涵，强化宅基地所有权人在审批中的作用，制定统一的《农村宅基地使用权法》。     

中国农民集体土地产权配置的实证辨析

在偏重公平价值的中国农民集体土地产权配置的基本框架下,任何追求效率的具体法律安排均无法避免与之发生内在冲突;无论是集体土地所有权的性质悖论、主体悖论还是土地承包经营权的性质悖论都是这种冲突的必然结果。要提高农业生产的效率,必须从实证的角度改革农民集体土地的产权配置,化解现存悖论;改革只能以明晰土地承包经营权的物权性质为切入点。     

制度变迁、集体行动与循环经济的发展——以循环经济的制度推进为视角

党的"十二五"规划提出要大力发展循环经济。作为全新的经济发展模式,循环经济的发展离不开制度的变迁和参与者之间的合作。制度的变迁离不开相对价格和偏好的改变。通过制度建设,形成有利于循环经济发展的相对价格格局和人们的偏好,并克服参与者合作时产生的集体困境,有助于推进循环经济的发展。