Information Storage and Retrieval is an important compulsory course for undergraduate students majoring in Information Management and Information System. It mainly includes the following seven teaching units:
1.Instruction to Information Retrieval(IR),including its basic concepts, principles and development; its research topics and related subjects or specialties.
2.Modeling in IR,three classic models(Boolean, Vector and Probabilistic)and their alternative paradigms are involved and discussed carefully.
3.IR Systems,this unit is dedicated to the discussion of IR systems’ types, work ways and their structures.
4.IR technology and methods,including text IR,multimedia IR and Web search engines.
5.Application of IR systems, involving in IR basic optional process and its online searching strategies, some important IR systems will be used and practiced by completing a certain amount of typical queries .
6.IR Evaluation,including the history of IR evaluation research, the metrics of IR performance evaluation and analyses of some important IR evaluation cases
7.text automatic understanding and processing,the unit is closely related to the research of traditional IR——text retrieval,some key topics will be discussed in detail, such as text indexing, text clustering and categorizing, text filtering, text summarization, etc.
Information Systems
信息系统，有时和信息管理合并为一个专业，就是通过学习计算机技术和管理学，竞争情报等学科知识，通过计算机技术对海量的数据进行收集和信息处理，使之成为有用的信息，然后通过科学的统计学原理对信息的过滤和分析进而形成知识，最终目的就是运用所获取的知识来做出正确的决策。从信息系统的发展和系统特点来看，可分为数据处理系统（Data Processing System，简称DPS）、管理信息系统（Management Information System，简称MIS）、决策支持系统（Decision Sustainment System， 简称DSS）、专家系统（人工智能的一个子集）和虚拟办公室（Office Automation，简称OA）五种类型。
