A SURVEY ON ONTOLOGY BASED WEB PERSONALIZATION <s> User Modeling <s> This chapter reviews research results in the field of Generic User Modeling Systems. It describes the purposes of such systems, their services within user-adaptive systems, and the different design requirements for research prototypes and commercial deployments. It discusses the architectures that have been explored so far, namely shell systems that form part of the application, central server systems that communicate with several applications, and possible future agent-based user modeling systems. Major implemented research prototypes and commercial systems are briefly described. <s> BIB001 </s> A SURVEY ON ONTOLOGY BASED WEB PERSONALIZATION <s> User Modeling <s> This paper brings together research from two different fields – user modelling and web ontologies – in attempt to demonstrate how recent semantic trends in web development can be combined with the modern technologies of user modelling. Over the last several years, a number of user-adaptive systems have been exploiting ontologies for the purposes of semantics representation, automatic knowledge acquisition, domain and user model visualisation and creation of interoperable and reusable architectural solutions. Before discussing these projects, we first overview the underlying user modelling and ontological technologies. As an example of the project employing ontology-based user modelling, we present an experiment design for translation of overlay student models for relative domains by means of ontology mapping. <s> BIB002
Assume a user is searching for a book title called "My experiments with truth", then the user might be interested in autobiographies, in such case the personalized system will recommend many autobiographies to the user which could be apt for the user. However the user may not be an avid reader of autobiographies and the same user may get irritated by the very personalized system over the time. To avoid such scenarios the system needs to understand the user in a better way, certainly keywords without the context would not be much helpful. The field of user modeling has more than 35 years of research by now, User modeling has evolved from labs to commercial service models. ALFRED KOBSA BIB001 . in his paper reviewed the development of generic user modeling systems over the past twenty years. It described their purposes, services within user-adaptive systems, and the different design requirements for research prototypes and commercially deployed servers. The core idea of adaptation is based on the assumption that differences in some user characteristics should influence the individual utility of the service/information provided; hence if system's behavior is tailored according to these characteristics, the system value will be increased. Some adaptive systems store individual information only for a single characteristic, others model users along multiple dimensions. BIB002 . A personalized system is said to be an adaptive system if the system is tuning itself to the requirement of the user, some personalized systems use domain knowledge which is Ontology. Ontology techniques will help user modeling in a better way.