【作者】 张杰；

【导师】 袁敏；

【作者基本信息】 南京师范大学 ， 计算机科学与技术， 2020， 硕士

【摘要】 互联网的快速发展促使服务商之间可以通过跨界合作生产新的产品,可以达到提高企业的效益的目的,为服务商推荐服务商进行跨界合作是目前需要解决的问题。本文从两方面进行服务商的跨界合作推荐,一方面是根据现有的跨界合作数据集对服务商推荐可以进行跨界合作的服务商,另外一方面是通过形式化建模的方式验证通过上述操作得到的服务商是否可以进行跨界合作。对服务商进行推荐,主要是分析现有的跨界合作数据集,总结出服务商的跨界合作偏好,从而进行推荐。对跨界合作服务商进行验证,主要是从逻辑上分析跨界服务商之间的合作轨迹,得到服务商进行跨界合作的主要方式,然后利用形式化建模的方式对跨界服务进行讨论,验证上述得到的跨界服务商是否合理。首先,对跨界服务模式进行挖掘,需要对服务商进行描述以及获取跨界合作数据集。本文通过对百度百科的服务商简介进行分析获取服务商的特性标签,利用特性标签来代替服务商本身。通过对新闻数据集进行分析获取新闻中的服务商名称和存在的跨界关系,利用服务商以及跨界关系的方式来表示跨界合作,构成跨界合作数据集。其次,从用户的角度对跨界合作数据集进行分析,通过协同过滤算法计算服务商之间的相似性,从而进行推荐。建立服务商-跨界标签的评分矩阵,同时考虑服务商之间的相似性以及跨界标签之间的相似性来计算得分,利用余弦相似性来计算服务商之间的相似性,根据最终的得分进行选择。最后,验证跨界服务的合理性。本文从逻辑的角度总结出服务商进行跨界合作的主要特征,通过形式化建模的方式来对服务商进行描述,根据服务商参与跨界合作的特征构造出服务商模型。然后对现有的跨界合作事实中的服务商进行分析,得到服务商之间存在的跨界合作方式并进行建模,通过建模可以找到所有通过跨界合作产生的结果。最后对推荐的跨界合作服务商建模,通过之间存在的交互关系来判断是否存在跨界合作,验证推荐的服务商的合理性。更多还原

【Abstract】 The rapid development of the Internet has prompted service providers to produce new products through cross-border cooperation,which can achieve the purpose of improving the efficiency of enterprises.It is a problem that needs to be solved to recommend service providers for cross-border cooperation for service providers.This article recommends the cross-border cooperation of service providers from two aspects.On the one hand,it recommends service providers that can carry out cross-border cooperation based on the existing cross-border cooperation data set.On the other hand,it is to verify whether the service providers obtained through the above operations can conduct cross-border cooperation through formal modeling.The recommendation of service providers is mainly through analyzing the existing cross-border cooperation data sets to sum up the service providers’ cross-border cooperation preferences,so as to make recommendations.The method of verifying cross-border cooperation service providers is mainly to logically analyze the cooperation trajectory between cross-border service providers to obtain the main way for service providers to conduct cross-border cooperation.Then use formal modeling to discuss cross-border services and verify whether the cross-border service providers obtained above are reasonable.Firstly,we need to mine cross-border service models,including describing service providers and obtaining cross-border cooperation data sets.This article analyzes the service provider profile of Baidu Encyclopedia to obtain the service provider’s characteristic label,and uses the characteristic label to replace the service provider itself.By analyzing the news data set to obtain the name of the service provider and the existing cross-border relationship in the news,the service provider and the cross-border relationship are used to represent the cross-border cooperation and constitute a cross-border cooperation data set.Secondly,the cross-border cooperation data set is analyzed from the user’s perspective,and the similarity between service providers is calculated through a collaborative filtering algorithm to make recommendations.Establish a scoring matrix of service provider-cross-border labels,and consider the similarity between service providers and the similarity between cross-border labels to calculate the score.Use cosine similarity to calculate the similarity between service providers,according to the final Score to choose.Finally,verify the rationality of cross-border services.This article mainly summarizes the main characteristics of service providers’ cross-border cooperation from a logical perspective.It can be described by formal modeling,and a service provider model is constructed according to the characteristics of service providersparticipating in cross-border cooperation.Then,by analyzing the service providers in the existing cross-border cooperation facts,the cross-border cooperation methods existing between the service providers are obtained and modeled,and all the results generated through cross-border cooperation can be found through modeling.Finally,the recommended cross-border cooperation service providers are modeled,and the existence of the cross-border cooperation is used to judge whether there is cross-border cooperation,and the reasonableness of the recommended service providers is verified.更多还原