A Novel Customer-Oriented Recommendation System for Paid Knowledge Products  

作　　者：Ting Yang Jilong Zhang Liye Wang Jin Zhang 

机构地区：[1]School of Business,Renmin University of China,Beijing 100872,China [2]International Business School,Bejing Foreign Studies University,Beijing 100089,China [3]State Key Laboratory of Media Convergence and Communication,Communication University of China,Bejing 100024,China [4]School of Economics and Management,Communication University of China,Beijing 100024,China

出　　处：《Journal of Systems Science and Systems Engineering》2022年第5期515-533,共19页系统科学与系统工程学报（英文版）

基　　金：This work is supported by the National Natural Science Foundation of China under Grant Nos.71772177,72072177,72202221;the Open Research Project of the State Key Laboratory of Media Convergence and Communication,Communication University of China under Grant No.SKLMCC2021KF005;the"Double First-Class"Major(Key)lconic Project of Bejjing Foreign Studies University(Study on the globalization risk in post epidemic period:From the perspective of financial s-curity and business risk under Grant No.2022SYLZD001),and the Fundamental Resea rch Funds for the Central Universities.

摘　　要：With the rapid development of knowledge pal malto:[e-mail] with a large number of knowledge products when purchasing,leading to the need for an effective recommendation system.However,existing recommendation systems cannot accurately and adequately represent paid knowledge products with implicit but specialized features and sparse interactive histories,and thus are deemed not suitable for such products.In this paper,we propose a novel recommendation system for knowledge products,the core of which is the designed customer oriented representation of knowledge products.Specifically,we utilize customer activity information on the free knowledge sharing platform as the knowl-edge document for each customer of paid knowledge products,to extract customer knowledge background and preference.Then,a deep learning based model Doc2vec is adopted to transfer knowledge documents to customer knowledge background vectors.Such vectors of a particular paid knowledge product are further aggregated to a product-level vector for customer-oriented product representation,based on which two recommendation results are generated with product ratings and similarities of paid knowledge prod-ucts,respectively.Extensive comparative experiments are conducted to demonstrate the ffectiveness of the proposed system for the representation and recommendation of paid knowledge products.This paper will contribute to the literature of knowledge payment and recommendation systems,as well as provide practical implications for the information service and the operation of knowledge products on knowledge payment platforms.

关 键 词：Recommendation system knowledge product knowledge payment Doc2vec product repre-sentation 

分 类 号：N94[自然科学总论—系统科学]