An analysis of review content and reviewer variables that contribute to review helpfulness     

MSI Malik  Ayyaz Hussain 《Information processing & management》2018,54(1):88-104

Review helpfulness is attracting increasing attention of practitioners and academics. It helps in reducing risks and uncertainty faced by users in online shopping. This study examines uninvestigated variables by looking at not only the review characteristics but also important indicators of reviewers. Several significant review content and two reviewer variables are proposed and an effective review helpfulness prediction model is built using stochastic gradient boosting learning method. This study derived a mechanism to extract novel review content variables from review text. Six popular machine learning models and three real-life Amazon review data sets are used for analysis. Our results are robust to several product categories and along three Amazon review data sets. The results show that review content variables deliver the best performance as compared to the reviewer and state-of-the-art baseline as a standalone model. This study finds that reviewer helpfulness per day and syllables in review text strongly relates to review helpfulness. Moreover, the number of space, aux verb, drives words in review text and productivity score of a reviewer are also effective predictors of review helpfulness. The findings will help customers to write better reviews, help retailers to manage their websites intelligently and aid customers in their product purchasing decisions.  相似文献   

Genetics Home Reference: A Review     

Jessica A. Koos  Ashley Bassett 《Medical reference services quarterly》2018,37(3):292-299

Genetics Home Reference is a free, online resource created and maintained by the National Library of Medicine. It is designed to provide genetic information to a wide variety of audiences, particularly the general public. The site consists of original information and links to other curated resources.  相似文献   

Reactivity without legitimacy? Online consumer reviews in the restaurant industry     

Jean-Samuel Beuscart  Kevin Mellet 《Journal of Cultural Economy》2016,9(5):458-475

In recent years, web sites where individual consumers can rate and review goods and services have mushroomed all over the Internet. Restaurants are particularly affected by online reviewing. If the impact of online consumer reviews (OCRs) on the demand side of markets is now well understood and measured, few studies examine the reception of this new evaluation method by those who are assessed. Based on interviews with French restaurant managers, our research shows that OCRs systems reconfigure relations of accountability in the restaurant industry. We use the notion of reactivity to describe the mechanisms through which the new evaluation system transforms the activity of restaurants. We also examine the affects surrounding the reception of ratings and reviews by restaurant managers and the moral criteria that accompany their discourses on online reviews. Many restaurants consider online reviews as a brutal and hypocritical mode of judgment. The judgment produced by online ratings and reviews is not easily borne by restaurant managers, because it challenges the conventions of quality they had previously internalized as legitimate, that is, those produced by professional experts. We interpret this ambivalent reception as the unfinished movement of transforming a performative reputation device into a legitimate evaluation institution.  相似文献   

School monitoring and quality assurance in the New Zealand school system   总被引：1，自引：0，他引：1  

Fubuki Sakura 《Educational Research for Policy and Practice》2007,6(3):229-234

This article reports on the New Zealand education quality assurance and school monitoring system, including its framework, and responsibilities of agencies. It first gives an outline of the education system in New Zealand, and then introduces the role of school charters and levels of schooling. To ensure the quality of schools, the methods of school self-review and external reviews of schools are used by the New Zealand government. Schools are given a list of obligations that they have to follow. Assessment policies and the school curriculum are designed to support learning. Fubuki Sakura formerly called William Leung  相似文献   

Person-centred reviews and transition: an exploration of the views of students and their parents/carers     

Julie White  Tina Rae 《Educational Psychology in Practice》2016,32(1):38-53

The person-centred review (PCR) is a model for the review of a student’s special educational needs (SEN) which places the young person and their family at the centre of the process. This mixed-methods, exploratory study investigated the views of 16 students with SEN aged between 10–11 years (Year 6) and 13–14 years (Year 9), and their parents/carers on their PCRs (which were mostly held at transition). Attention was paid to potential changes in the young people’s locus of control and feelings towards school. Findings indicated that the PCR is a collaborative, constructive and reassuring process for families where a wealth of information is shared openly and honestly within a relaxed, yet structured, meeting. The young people were generally positive about the process, although many felt daunted beforehand. Some parents felt the meeting was too long and not entirely accessible to children. The study did not conclude that the young people’s locus of control or feelings towards their education changed following the PCR. Implications for good practice are discussed, particularly for educational psychologists and in the context of the SEN and Disability Code of Practice.  相似文献   

《汽车材料课程》小组教学的探讨     

黄炳华 《深圳职业技术学院学报》2002,1(1):93-96

汽车材料课程教学改革,改变了传统的教师讲,学生听的教学方法。让学生自由组合2～4人一组,每组选择一个专题,收集相关资料、进行市场调查、撰写出专题报告,并在课堂上介绍报告内容、工作过程、工作方法以及工作中遇到的问题和解决方法等。这种教学方法,充分调动了学生的学习兴趣、学习积极性和主动性,培养了学生的综合应用能力,包括团结协作精神、查阅资料获取信息的能力、人际交往与沟通能力、科技文章写作能力、语言表达能力等,取得了较好的教学效果。  相似文献   

我国二手车市场目前存在的问题及发展方向   总被引：2，自引：0，他引：2  

陈超 《邢台职业技术学院学报》2005,22(5):32-33

随着我国汽车产销量的迅速增长,汽车保有量也越来越多,这就为二手车市场的发展带来了广阔的前景.本文主要讲述了目前我国二手车市场存在的问题,以及要解决目前二手车市场问题的具体措施.  相似文献   

政府主导构建全民健身服务体系的研究综述     

朱云松 《淮南职业技术学院学报》2011,11(4):88-90

运用文献资料法,从政府主导是构建全民健身服务体系的刚性要求;全民健身服务体系的外部环境要求,在政府主导下落实《全民健身计划》;全民健身服务体系自身的内在特征要求政府主导运作等方面,综述认识各级政府、各级体育管理部门,是构建全民健身服务体系的第一主体。  相似文献   

智能车光电传感器和摄像头的选择     

戚玉婕 《扬州职业大学学报》2011,15(4):23-26

智能车设计综合了光学传感器、硬件电路和软件算法等多方面跨领域的知识技巧。本文针对黑白赛道智能车的赛道光学识别模块,系统地介绍了红外反射式光电传感器、激光传感器和可见光摄像头的实现原理及硬件电路;同时结合实际比较了其优缺点。  相似文献   

面向用户需求分析的产品评论用例提取研究     

靳健  张黎雪  刘馨儿  耿骞 《情报理论与实践》2020,43(1):104-111,126

[目的/意义]实现海量产品评论数据的快速分析,帮助产品设计人员高效地获取用户需求,在新产品设计的决策中提供参考。[方法/过程]在特征提取和情感分析的基础上,构造了包括"词+词性+词干+位置+依存关系"等节点特征的条件随机场模型,按照"产品特征、谁、在何种情境下、遇到了什么问题"4个要素,以描述手机屏幕和电池的负面评论为例,从产品评论中提取用例。[结果/结论]模型评估和实证研究表明,所构造的模型可以有效地从评论文本中识别产品特征、使用主体、使用情景和遇到的问题,从而快速构造用例,获取用户需求。  相似文献