A time-aware hybrid recommendation scheme combining content-based and collaborative filtering

来源 :计算机科学前沿 | 被引量 : 0次 | 上传用户:hanyeliu
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
1 Introduction and main contributionsrnNowadays,the problem of information overload of Internet ap-plications is becoming more and more serious,which makes it difficult for users to choose what they really like.Various kinds of recommendation models are widely used to help users locate information.In general,recommendation models are utilized to recommend items for users by predicting their preferences,which can be divided into collaborative filtering,content-based,and hybrid approaches.
其他文献
分析影响港口大型桥式起重机海上运输及现场安装方式的主要因素,对其运输、安装方式进行分类,阐述了不同运输、安装方式的技术特点及优缺点,对比分析其应用范围、适用工况,并结合工程实例进行说明.
Multi-label classification aims to assign a set of proper labels for each instance,where distance metric learning can help improve the generalization ability of instance-based multi-label classification models.Existing multi-label metric learning techniqu
在对矿石码头火车装车站缓冲仓方案论证过程中,根据装车能力的不同研究了缓冲仓的结构特点,提出缓冲仓设置配料口数量不同时料位的确定方法;并采用工艺技术研究了缓冲仓前后设备的工艺流程,对设备操作时间进行了数据统计和分析,进而确定了缓冲仓容积的理论计算公式和方法,对矿石码头装车站缓冲仓设计具有重要的指导意义.
1 IntroductionrnMobile cloud computing (MCC) can break the limitations of mobile devices by migrating applications to the Cloud with richer computing and storage resources[1].Consequently,mo-bile users can obtain better service experience,improved pro-ces
期刊
Software systems are present all around us and playing their vital roles in our daily life.The correct function-ing of these systems is of prime concern.In addition to clas-sical testing techniques,formal techniques like model check-ing are used to reinfo
摘要:水文地质既是岩土工程勘察组成的一部分,又直接影响了岩土工程的特性和质量,甚至还影响到建筑的安全性、稳定性和耐久性。本文笔者对岩土工程中水文地质勘察的作用进行了探讨,希望对相关从业人员具有借鉴意义。  关键词:岩土工程;水文地质勘察  中图分类号:S969文献标识码: A  1、岩土的水理性质  岩土的水理性质也就是指我们施工中的岩石土壤和地下水在一定程度上发生相互的作用而形成的一种固定的特征
期刊
Traditional recommendation algorithms predict the latent interest of an active user by collecting rating informa-tion from other similar users or items.Recently,more and more recommendation systems attempt to involve social relations to improve recommenda
Effective exploration is key to a successful search process.The recently proposed negatively correlated search(NCS) tries to achieve this by coordinated parallel exploration,where a set of search processes are driven to be negatively cor-related so that d
在青岛港前湾港区迪拜环球码头辅建区绿化设计过程中,提出了两种景观方案,并在景观方案的基础上,对绿植选种及种植方法进行了专门研究.藉此,提出了几点码头辅建区绿化设计的经验和建议.相关设计理念及设计方法对于其他类似工程具有一定的参考和借鉴意义.
青岛一期油码头为高桩墩台结构,通过设置水下套筒的方式对钢管桩进行保护,将墩台表层混凝土全面凿除,对钢筋周围混凝土进行电化学脱盐处理,然后重新浇筑混凝土,以此达到增加码头耐久性、延长其使用年限的目的.本研究可为类似工程提供参考.