Social network data to alleviate cold-start in recommender system: A systematic review     

Lesly Alejandra Gonzalez Camacho  Solange Nice Alves-Souza 《Information processing & management》2018,54(4):529-544

Recommender Systems are currently highly relevant for helping users deal with the information overload they suffer from the large volume of data on the web, and automatically suggest the most appropriate items that meet users needs. However, in cases in which a user is new to Recommender System, the system cannot recommend items that are relevant to her/him because of lack of previous information about the user and/or the user-item rating history that helps to determine the users preferences. This problem is known as cold-start, which remains open because it does not have a final solution. Social networks have been employed as a good source of information to determine users preferences to mitigate the cold-start problem. This paper presents the results of a Systematic Literature Review on Collaborative Filtering-based Recommender System that uses social network data to mitigate the cold-start problem. This Systematic Literature Review compiled the papers published between 2011–2017, to select the most recent studies in the area. Each selected paper was evaluated and classified according to the depth which social networks used to mitigate the cold-start problem. The final results show that there are several publications that use the information of the social networks within the Recommender System; however, few research papers currently use this data to mitigate the cold-start problem.  相似文献   

Head start and the intensification of teaching in early childhood education     

《Teaching and Teacher Education》2014

Head Start is the largest early childhood education program in the US. Echoing patterns emerging in ECE world-wide, Head Start has dramatically changed. Greater emphasis is now placed on kindergarten readiness, child and teacher assessment, professionalization, and increased competition for program funding. Drawing on a mixed methods research design, a case study was conducted that explores the nature and effects of these changes on teachers and the work of teaching within Head Start. Strong evidence of work intensification was found, a topic little explored within the wider ECE literature. In the light of this finding the authors question the model of professionalism that now dominates ECE reform.  相似文献   

关于补习教育的再思考   总被引：4，自引：0，他引：4  

王吉 《河北师范大学学报(教育科学版)》2008,10(8)

日益膨胀的补习班可能阻碍课改的深入实施,但补习教育的红火更多是人们对课程改革不理解的结果,因此很难通过排除它促进课程改革。作为一种普遍的社会现象,补习教育有其逻辑上的合理性,家长、补习教师双方围绕不乏优点的补习教育构成了一个稳定的供需系统,客观分析这个系统才可能更有效地解决补习教育的负面问题。  相似文献   

Predictors and outcomes of low-income fathers’ reading with their toddlers     

Elisabeth Duursma  Barbara Alexander Pan  Helen Raikes 《Early childhood research quarterly》2008

Most studies of parent–child bookreading have focused on mothers reading to their children. Though the role of fathers in children's lives is widely emphasized, we know almost nothing about father–child bookreading, particularly among low-income families. The present study was designed to examine how often low-income fathers report reading to their children and what the predictors and effects of paternal bookreading are. The fathers in this study were participants in the national evaluation of Early Head Start (EHS) and were recruited via mothers enrolled in the EHS study. Participating fathers were interviewed at home and their children's cognitive and language development were assessed using standardized measures from ages 2 to 5. Results demonstrated a wide variety in frequency of bookreading among fathers. Fathers were more likely to read to their children frequently if they spoke English at home, if they had a high school education, and if their children had better language skills. Fathers’ bookreading predicted children's cognitive outcome. Paternal bookreading did predict children's language outcomes but only for children whose fathers had at least a high school education.  相似文献   

立党为公、执政为民是党保持先进性的基本标准     

顾华详 《乌鲁木齐职业大学学报》2006,15(1):7-13

能否坚持立党为公、执政为民,是衡量执政党能否保持先进性的一个基本标准。坚持立党为公、执政为民,始终保持党的先进性,是历史和时代赋予党的神圣使命,永葆先进性是共产党人的政治本色,保持同人民群众的血肉联系是领导干部保持先进性的基本要求。党员领导干部要坚持做好新形势下的群众工作,在进一步密切同人民群众的血肉联系中保持先进性;重视解决好涉及群众切身利益的问题,在为群众服务中保持先进性;积极建立健全为群众服务的长效机制,在转变作风中保持先进性;进一步改进下基层工作的方法,在真心贴近群众、扎实深入群众中保持先进性。  相似文献   

基于返乡创业农民工培育新型职业农民的社会支持体系构建     

吕莉敏 《当代职业教育》2019,(1):35-41

乡村振兴战略的实施为返乡创业农民工培育成新型职业农民带来了机遇。国家政策的扶持以及返乡创业农民工自身的优势,使返乡创业农民工成为乡村振兴的重要力量。但在将返乡创业农民工培育成新型职业农民的过程中面临融资渠道不畅,贷款难度大和政策支持力度不够等外部环境以及返乡创业农民工自身人力资本偏低、新型职业农民认同度低、职业培训效果不佳等方面的挑战。为了推动乡村振兴战略的顺利实施,需要吸引更多高素质农民工返乡创业,壮大新型职业农民队伍,而这需要构建有合适的软硬环境、横纵向贯通的全程教育培训、配套和专项资金、系列支农惠农政策和完善健全法律的社会支持体系。  相似文献   

新课改中班主任管理工作存在的问题及对策浅议     

王玉琴  杨英 《喀什师范学院学报》2006,27(1):101-104

在新的基础教育课程理念中,“面向全体学生”得到了前所未有的强调,促进每一位学生的身心健康发展,满足每一位学生终身发展的需要成为新一轮课程改革最重要的价值取向。面对这样新的形势要求,抓住机遇,不断更新组织管理班集体建设的理念,就成为班主任群体的一项重要任务。论文从班主任在教育教学中的地位入手,分析了新课程改革中班主任管理工作存在的主要问题,并提出相应的改进措施。  相似文献   

一切取决于你     

《海外英语》2007,(1):1

One song can spark a moment, One flower can wake the dream. One tree can start a forest, One bird can herald spring.  相似文献   

李二曲教育思想刍议     

房秀丽 《山西师大学报(社会科学版)》2005,32(5):124-126

清初大儒李二曲继承和发扬了传统儒家注重“为己之学”的教育智慧,通过对“过”、“悔”“新”的重新诠释和改造,创造性地提出了“悔过自新”说,深化了儒家关于自我教育的思想。该学说以性本善和人皆有“过”为自我教育的起点,以转念和慎独为自我教育的方法,以实现个我之“新”和社会之“新”为自我教育的目标,将儒家教育思想中的自我教育原则推向极致,对发展现代教育不无启发意义。  相似文献   

神经节苷脂治疗重型颅脑损伤的临床观察   总被引：2，自引：0，他引：2  

刘熙鹏  任玉芳 《河北北方学院学报(医学版)》2006,23(6):37-38

目的：探讨神经节苷脂（GM-1）在急性颅脑损伤治疗中的应用。方法：对40例急性颅脑损伤患者静脉滴注GM-1 500mg加生理盐水250ml静滴／第1d；400mg加生理盐水250ml静滴／第2d；300mg加生理盐水250ml静滴／第3d；200mg加生理盐水250ml静滴／第4d；5d后100mg加生理盐水250ml／d静滴共10d，后改为GM-140mg。结果：治疗组在随访结束后，GCS评分、语言功能评分、远期综合生活质量评估等方面均明显优于对照组（P〈0．05）。结论：GM-1具有较好的催醒作用，对提生存质量、降低死亡率，促进脑功能恢复和改善预后具有较好的疗效。  相似文献