Infomaster: A Virtual Information System
نویسندگان
چکیده
Infomaster is a virtual information system that allows users to access a variety of heterogeneous, distributed information from multiple perspectives. Infomaster accesses information stored in databases or knowledge bases using Agent Communication Language (ACL), a combination of KQML, KIF, and Ontologies. Facilitators are used decompose, route, and translate requests and assemble, route, and translate responses. Information may be queried and presented in a variety of formats. Infomaster is an operational system that currently presents information on rental housing and on people at Stanford.
منابع مشابه
Infomaster | an Information Integration Tool
We present the Infomaster system, an information integration tool developed and tested at Stanford University. The Infomaster system bridges di erences in schemata and terminology between existing databases. This makes it possible to provide a uniform user interface to a collection of heterogeneous information sources. Information sources are described in an expressive language, the so-called k...
متن کاملQuery Planning in
Infomaster is an information integration system. It provides integrated access to distributed, heterogeneous information sources, thus giving its users the illusion of a centralized, homogeneous information system. Infomaster is the rst such system that is able to handle arbitrary positive relational algebra user queries and database descriptions. It is able ef-ciently to use integrity constrai...
متن کاملDesigning the Model of Student Support System in the Virtual Learning Environment: A Necessity in the Face of the Corona Crisis
Introduction: Process of e-learning in universities because of coronavirus (Covid-19) outbreak was developed. Since the success of students in this type of education requires appropriate and effective support, the present study has been done to develop a model of support system in virtual learning environment in medical universities. Methods: This is an applied qualitative research. To d...
متن کاملThe Virtual Education of Health Care Providers in the Corona Epidemic Period, Point of View, Challenges and Approaches
Introduction: The Covid-19 pandemic was the biggest challenge that caused educational systems in the world to deal with it. Universities of medical sciences directed students away from the clinical environment and they lead them to virtual education. This sudden transition was accompanied by many challenges especially in clinical fields such as nursing. Methods and Materials: This review arti...
متن کاملپشتیبانی کتابخانه های مجازی ازآموزش مجازی ازدیدگاه مدیران و دانشجویان مراکز آموزش مجازی
Introduction: Recently, virtual education has significantly influenced traditional educational systems by means of advanced communication information technologies .Which has not been paid much attention by the developers of this system. The present study aims at exploring the viewpoints of the managers and students of virtual educational centers concerning the services provided by virtual libra...
متن کامل