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331.
Effects of product portfolios and recommendation timing in the efficiency of personalized recommendation
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Qiang Yan Lin Zhang Yuxia Li Shuang Wu Tingting Sun Lingli Wang Hejie Chen 《Journal of Consumer Behaviour》2016,15(6):516-526
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. 相似文献
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Radiologists often miss nodules that may represent lung cancer on chest radiographs. We investigated whether eye movements collected during the search for lung nodules by large samples of laypeople may provide information that could assist radiologists in their detection. For that purpose, we developed a partially invisible Markov model with partially unobserved states and analyzed eye tracking data of over 100 laypeople who reviewed 14 chest X‐ray images, of which seven contained a potentially cancerous nodule. We used the luminance value of the pixels in the X‐ray images as prior information on the possible location of a nodule and identified six regions of interest on each image that may contain a nodule. Our study demonstrated that the eye movements recorded from laypersons contained information that may assist radiologists in the detection of nodules in chest X‐rays, which has important implications for crowdsourcing of search for pulmonary nodules, which are discussed. Copyright © 2016 John Wiley & Sons, Ltd. 相似文献
334.
Chenyang Li 《Dao》2016,15(4):533-546
As a genus of philosophy, comparative philosophy serves various important purposes. It helps people understand various philosophies and it helps philosophers develop new ideas and solve problems. In this essay, I first clarify the meaning of “comparative philosophy” and its main purposes, arguing that an important purpose of comparative philosophy is to help us understand cultural patterns. This function makes comparative philosophy even more significant in today’s globalized world. 相似文献
335.
Chuanji Gao Timm Rosburg Mingzhu Hou Bingbing Li Xin Xiao Chunyan Guo 《Cognitive, affective & behavioral neuroscience》2016,16(6):977-990
The effectiveness of retrieval practice for aiding long-term memory, referred to as the testing effect, has been widely demonstrated. However, the specific neurocognitive mechanisms underlying this phenomenon remain unclear. In the present study, we sought to explore the role of pre-retrieval processes at initial testing on later recognition performance by using event-related potentials (ERPs). Subjects studied two lists of words (Chinese characters) and then performed a recognition task or a source memory task, or restudied the word lists. At the end of the experiment, subjects received a final recognition test based on the remember–know paradigm. Behaviorally, initial testing (active retrieval) enhanced memory retention relative to restudying (passive retrieval). The retrieval mode at initial testing was indexed by more positive-going ERPs for unstudied items in the active-retrieval tasks than in passive retrieval from 300 to 900 ms. Follow-up analyses showed that the magnitude of the early ERP retrieval mode effect (300–500 ms) was predictive of the behavioral testing effect later on. In addition, the ERPs for correctly rejected new items during initial testing differed between the two active-retrieval tasks from 500 to 900 ms, and this ERP retrieval orientation effect predicted differential behavioral testing gains between the two active-retrieval conditions. Our findings confirm that initial testing promotes later retrieval relative to restudying, and they further suggest that adopting pre-retrieval processing in the forms of retrieval mode and retrieval orientation might contribute to these memory enhancements. 相似文献
336.
Li Zhang Qiaochu Fang Florence C. Gabriel 《Quarterly journal of experimental psychology (2006)》2016,69(4):764-780
Although several studies have compared the representation of fractions and decimals, no study has investigated whether fractions and decimals, as two types of rational numbers, share a common representation of magnitude. The current study aimed to answer the question of whether fractions and decimals share a common representation of magnitude and whether the answer is influenced by task paradigms. We included two different number pairs, which were presented sequentially: fraction–decimal mixed pairs and decimal–fraction mixed pairs in all four experiments. Results showed that when the mixed pairs were very close numerically with the distance 0.1 or 0.3, there was a significant distance effect in the comparison task but not in the matching task. However, when the mixed pairs were further apart numerically with the distance 0.3 or 1.3, the distance effect appeared in the matching task regardless of the specific stimuli. We conclude that magnitudes of fractions and decimals can be represented in a common manner, but how they are represented is dependent on the given task. Fractions and decimals could be translated into a common representation of magnitude in the numerical comparison task. In the numerical matching task, fractions and decimals also shared a common representation. However, both of them were represented coarsely, leading to a weak distance effect. Specifically, fractions and decimals produced a significant distance effect only when the numerical distance was larger. 相似文献
337.
两种医学模式的方法论问题评价 总被引:7,自引:2,他引:5
姜柏生 《医学与哲学(人文社会医学版)》2000,21(8):8-10
生物医学模式和生物心理社会医学模式是对医学发展具有重要意义的两种医学模式,它们在对疾病和健康的看法上形成不同的思维方式;且这种思维方式在人们进行医学科研中具有不同的方法论作用。 相似文献
338.
本文主要介绍基于对国内 41家企业、1 467位主管级经理人员的心理素质测评研究 ,以探求企业经营者的个性特点 ,旨在建构一套适合企业管理活动背景的企业经营者心理素质评量工具。为达研究目的 ,收集参考了国内外现有的个性量表 ,结合对企业经营者活动特点的分析 ,编制测试工具 ,并对其信度和效度进行了严格规范的检验 ,制定出企业经营者心理素质问卷调查男性常模 ,为企业经营者心理素质和相关能力的评量提供了重要的辅助工具。 相似文献
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