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Date: Wed, 15 Jan 1997 01:07:09 GMTServer: NCSA/1.4.1Content-type: text/htmlLast-modified: Tue, 22 Oct 1996 00:24:00 GMTContent-length: 3159<head><title> Courses: Databases and Information Systems </title></head><body BGCOLOR="#FFFFFF" LINK="#186727"><p><hr><p><h1> CS 680: Database and Information Systems </h1> <br><p><hr><p><ul> <li> <b> Fall 1996 information: </b> <ul> <li> Time/Place: 5:00 - 6:20 pm, Washington 308 <li> Office Hours: Mondays 2-5, or just after class. </ul> <li> <b> Catalog description: </b> <ul> <li> Brief coverage of standard database concepts: relational model, file systems, physical implementation of databases. Spatial databases: computational geometry, spatial relations, spatial data structures, query processing. Text processing: search techniques, compression methods. Image databases: storage issues, compression methods, image indexing, searching by content. Additional topics from multimedia and temporal databases. Students will implement various algorithms discussed in class. </ul> <li> <b> Prerequisites: </b> <ul> <li> An undergraduate algorithms course (e.g. CS 313) </ul> <li> <b> A more friendly description: </b> <ul> <li> Traditional databases cover the standard relational model that is particularly suited to applications in banking and commerce. The type of data stored has usually been alphanumeric in nature. For example, an employee database has data about employee names, their addresses, salaries, departments etc. Queries typically involve finding items and sorting items. Today, databases are starting to be used to store non-alphanumeric data. For example, a county planning office wants to store detailed maps of property, of electrical wiring and drainage systems. In another example, images of products are stored in a product catalog. Typical queries for these types of databases include questions like "Find me all residential properties within a 5-mile radius of this factory" or "Here is a shape of a vase; find me examples in the catalog that look like it". The above are examples of spatial (or geographic) databases and image databases. <p> While traditional relational databases are well-understood, the same cannot be said about spatial and image databases. This course will explore the science behind these types of databases. Both theory and practice will be considered. The course will start by asking how traditional tree data structures can be modified for spatial data. From there, computational issues about geometry - computational geometry - will be covered. Some issues concerning spatial and geographic databases will be addressed next: how to store data, and how to specify and process queries. The material on image databases will start with storage problems: how to compress 2-D images effectively. Following this, some material regarding the organization of image databases will be presented. Additional topics include multimedia database issues and temporal database issues. </ul> </ul> </ul><p><hr><p><h3> <!WA0><a href="http://www.cs.wm.edu/~simha"> Back to my homepage </a> </h3><p><hr><p></body>⌨️ 快捷键说明
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