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Improvising Personalized Travel Recommendation System with recency effects

Big Data Mining and Analytics 2021年第3期4卷 139-154页

作者： Paromita Nitu Joseph Coelho Praveen Madiraju Department of Mathematical and Statistical Sciences Marquette UniversityMilwaukeeWI 53233USA Department of Computer Science Marquette UniversityMilwaukeeWI 53233USA

A travel recommendation system based on social media activity provides a customized place of interest to accommodate user-specific needs and preferences. In general, the user’s inclination towards travel destinations is subject to change over time. In this project, we have analyzed users’ twitter data, as well as their friends and followers in a timely fashion to understand recent travel interest. A machine learning classifier identifies tweets relevant to travel. The travel tweets are then used to obtain personalized travel recommendations. Unlike most of the personalized recommendation systems, our proposed model takes into account a user’s most recent interest by incorporating time-sensitive recency weight into the model. Our proposed model has outperformed the existing personalized place of interest recommendation model, and the overall accuracy is 75.23%.

关键词： travel recommendation time sensitivity recency effect personalization social media

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Primary and recency effects based on loading path in classical plasticity

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Journal of Central South University 2020年第9期27卷 2592-2605页

作者： GAO Yue SHAO Fei FAN Peng-xian XU Qian GU Juan WANG Shang-long Field Engineering College Army Engineering University of PLANanjing 210007China Defense Engineering College Army Engineering University of PLANanjing 210007China Engineering Design Institute of the Army Research Institute Nanjing 210018China

We have established an elastoplastic analysis model to explore the effect of loading path in an incompressible thin-walled tube under the combined action of axial force and torque based on Mises yield condition and isotropic linear hardening ***,four stress areas(σx,τx)are divided according to the characteristics of the final stress,and the plastic stress-strain relationship of twelve stress paths in different stress areas is ***"primary effect"of the stress path on plastic strain is demonstrated,namely,the plastic strain caused by the pre-loaded stress in path A(tensile stress is initially applied,followed by shear stress)is always greater than that caused by the post-loaded stress in path C(shear stress is initially applied,followed by tensile stress)irrespective of the value of final ***"recency effect"of the strain path on the stress is also established,which indicates that the stress caused by the post-loaded strain in path A is always greater than that caused by the pre-loaded strain in path C irrespective of the value of final *** the perspective of deformation,the"primary effect"of the stress path on the plastic strain and the"recency effect"of the strain path on the stress are *** effects are succinct and universal,and they provide useful insights on the plastic stress-strain relationship under different loading ***,they can serve as a useful reference for optimizing the processing technologies and construction procedures.

关键词： isotropic linear hardening stress path strain path primary effect recency effect

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中国“国有企业效率效益”问题的理论误区与认识论、方法论原因

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社会主义经济理论与实践 2015年第1期 35-44页

作者：王今朝龙斧

国有企业在性质、目的、生产方式等方面与私有企业的差异性决定二者在效率效益上没有简单可比性。国有企业效率效益低下论是西方经济学封闭系统方法论的一般性产物。而在中国，它的产生与形成还具有近因效应、光环效应、代表性启发式思... 详细信息

国有企业在性质、目的、生产方式等方面与私有企业的差异性决定二者在效率效益上没有简单可比性。国有企业效率效益低下论是西方经济学封闭系统方法论的一般性产物。而在中国，它的产生与形成还具有近因效应、光环效应、代表性启发式思维等唯心主义认识论影响，也是在事物(效率效益)分析上逻辑简单化、极端化、矫枉过正、用事物现象代替事物本质等方法论作用的结果。这些方法论的运用在企业效率效益衡量上形成了带有资本主义价值观与意识形态色彩的双重标准范式，其逻辑关系就是试图证明私有化才是唯一提高效率效益的手段。而整体主义、唯物主义的方法论分析则揭示出这种论点在经济学方法论上的伪科学性。

关键词：国有企业效率效益认识论方法论中国经济学建设近因效应光环效应改革 state-owned enterprise efficiency benefit epistemology methodology China's economic construction recency effect the halo effect reform

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