Effects of product portfolios and recommendation timing in the efficiency of personalized recommendation

Personalized recommendation has important implications in raising online shopping efficiency and increasing product sales. There has been wide interest in finding ways to provide more efficient personalized recommendations. Most existing studies focus on how to improve the accuracy and efficiency of the recommendation algorithms or are more concerned on ways to reduce perceived risks and thus increase consumer satisfaction. Unlike these studies, our study begins from the decision‐making process of consumers, using consumers' two‐stage decision‐making system and preference inconsistency theory as a basis, to reveal the mechanisms involved in consumers' acceptance of recommendations. This paper analyzes the effect of personalized recommendations from two angles, recommendation timing and product portfolio, tries to point out differences in consumer preferences between similar products and related products, and verifies that consumers demand diversity in the recommended content. The study analyzes differences in the acceptance of personalized recommendations between practical products and hedonic products and discovers that recommendations of hedonic products are more effective than that of practical products. Based on the research earlier, the study provides suggestions on how to better plan and operate a personalized recommendation system. Copyright © 2016 John Wiley & Sons, Ltd.     

Differences in the micromechanical properties of dendrites and interdendritic regions in superalloys

Statistical analysis of white-light interferometry (WLI) experiments performed on Ni-based single-crystal superalloys (SX) have revealed a different height distribution between the dendritic cores (DCs) and the interdendritic regions (IRs) of the polished samples. The micromechanical property difference is largely ascribed to the uneven distribution of the alloying elements. In this context, possible reasons for this difference are discussed by comparing with different experiment results obtained by previous researchers, and a proposal forecasting the hardness ratio of IRs/DCs is put forward.     

The centroid paradigm: Quantifying feature-based attention in terms of attention filters

This paper elaborates a recent conceptualization of feature-based attention in terms of attention filters (Drew et al., Journal of Vision, 10(10:20), 1–16, 2010) into a general purpose centroid-estimation paradigm for studying feature-based attention. An attention filter is a brain process, initiated by a participant in the context of a task requiring feature-based attention, which operates broadly across space to modulate the relative effectiveness with which different features in the retinal input influence performance. This paper describes an empirical method for quantitatively measuring attention filters. The method uses a “statistical summary representation” (SSR) task in which the participant strives to mouse-click the centroid of a briefly flashed cloud composed of items of different types (e.g., dots of different luminances or sizes), weighting some types of items more strongly than others. In different attention conditions, the target weights for different item types in the centroid task are varied. The actual weights exerted on the participant’s responses by different item types in any given attention condition are derived by simple linear regression. Because, on each trial, the centroid paradigm obtains information about the relative effectiveness of all the features in the display, both target and distractor features, and because the participant’s response is a continuous variable in each of two dimensions (versus a simple binary choice as in most previous paradigms), it is remarkably powerful. The number of trials required to estimate an attention filter is an order of magnitude fewer than the number required to investigate much simpler concepts in typical psychophysical attention paradigms.     

先天性红-绿色觉异常者的非彩色表色色差辨别研究

该文就先天性红－绿色觉异常者对非彩色系表色色差的辨别展开了研究。结果表明,先天性红－绿色觉异常者色差识别的量值△Ｅ随目视评价的等级不同而异;先天性红－绿色觉异常者与色党正常者在非彩色表色辨别上存在一定的差异;同一明度等级上、下限的变化对先天性红－绿色觉异常者的非彩色表色辨别存在影响,这种影响与明度的级别有关。     

Case illustration: Moving along…and,is change gradual or sudden?

A sequence of analytic sessions of a professional woman in her forties is used to illustrate the moving along process. The material shows a gradual change, where the patient's experience of her sense of agency is altered through a particular kind of interactive sequence. The example is intended to make it clear that the group's view of how change occurs is not strictly or primarily in terms of sudden changes, and that the problem of assessing moments of meeting as well as quantitative and qualitative shifts is one with which the group continues to struggle. © 1998 Michigan Association for Infant Mental Health     

中小学生的情绪表达方式认知及其与同伴接纳的关系

本研究采用D.Matsumoto等编制的情绪表达规则评估问卷,探讨了237名中小学生情绪表达方式的认知发展,并通过同伴提名法选择了192名同伴关系良好和同伴关系不良的中学生为被试,探讨了情绪表达方式认知与同伴接纳的关系。结果表明:情绪类型与情境类型对中小学生多种情绪表达方式的认知具有主效应;中小学生的情绪表达向更具有社会效益方向发展,对自我和他人情绪表达存在认识分化,并随年龄而增加;同伴关系不良的中学生在情绪表达的认知上存在发展滞后。     

中国道教协会组团参加“澳门道教文化周”

应澳门道教协会邀请,中国道教协会组成以任法融会长为团长、丁常云副会长、袁炳栋秘书长等7人的参访团于2007年3月16日至20日赴澳,参加了“2007道教文化周”活动。