cs 431 architecture of web information systems spring 2004
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CS 431
Architecture of Web Information Systems
Spring 2004
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CS431-SPR2004-01/26/2004
Libraries vs. WebDiscovery
Preservation
Organization
Trust
Privacy
Selection
Public Service
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What is a library?
• Functions– Selection– Organization– Support– Preservation
• Characteristics– Standardized– Professionalized– Service-oriented– In it for the long-haul– Conservative
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What is the Web?
• Decentralized/Anarchic/Illegal• Agreements are technical (at best)• Roles are undefined and fluid• You don’t have to be an expert (or “no
one knows you are a dog”)• Immediate• Ephemeral
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What is a networked Information System?
Evolutionary perspective: digital libraries as institutions that are the continuation of libraries (library automation and digitization as the link between libraries and digital libraries).
Revolutionary perspective: technical, organizational, economic/legal layers on top of the Web that render existing libraries obsolete.
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Many facets of the problem/solution
technology
law
economy
sociology
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What we’ll talk about in this course
• Technical Basics– XML– XSLT– RDF
• Knowledge Organization– Cataloging– Metadata
• Documents– Identity – Types
• Semantic Web• Information
Preservation– Traditions– New Models
• Intellectual Property– Copyright– Rights Management
• Scholarly Publishing• Examples
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Technical Trade-offsCost
Functionality
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Course Web Resources
http://www.cs.cornell.edu/Courses/cs431/2004sp
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Code of Academic Integrity
http://cuinfo.cornell.edu/Academic/AIC.html
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Some Pet Peeves
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And now for some history…
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Library of Alexandria
• Established by Ptolemy I in 290 BC
• 532K papyrus rolls• Acquisition by
copying mandate• Destroyed in 490 AD
during burning alive of Hypatia, the last keeper of the library
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Melvil Dewey• “Father of modern
librarianship”• Frustrated by dedicated
shelving method• Invented method of
classifying into 10 categories
• 21st edition of Dewey Classification system now published
• Started ALA
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S. R. Ranganathan
• Colon Classification System
• 42 main classes• Subject classification
by appending facets within class: who, what, when, where
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Vannevar Bush
• “As We May Think” Atlantic Monthly 1945
• Pivotal landmark in hypertext research
• “This is the essential feature of the memex. The process of tying two items together is the important thing”
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Claude Shannon
• “Father of Information Theory”
• Seminal “The Mathematical Theory of Communication”
• Data vs. Information
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Henriette Avram
• “Mother of MARC”, “Melvil Dewey of the 20th Century”
• Developed MAchine Readable Cataloging (MARC)
• Allows standardization and sharing of bibliographic records
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J.C.R. Licklider
• “Man-Computer Symbiosis”
• Developed the idea of the “universal network” and interactive computing
• Developed and led ARPANET funding initiative
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Inventors of Internet
• Cerf, Kahn, Metcalfe, etc.
• Packet rather than circuit switching
• Layered protocols (TCP/IP, telnet, ftp…)
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Ted Nelson
• Inventor of the notion of “non-sequential writing” and term “hyptertext” and “hypermedia” circa 1960
• Founder of Project Xanadu
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Gerard Salton
• Preeminent figure in modern information retrieval
• SMART information retrieval system: basis of many well-known IR concepts
• Among founders of Cornell CS department
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Tim Berners-Lee
• Inventor of the World Wide Web – CERN 1989
• First client and server 1990
• Directory of World Wide Web Consortium and faculty at MIT
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CS 431 Student
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Who am I?
• Founder of Cornell Digital Library Research Group– http://www.cis.cornell.edu/infoscience/research/dl/home.html
• Member of Information Science Program– http://www.cis.cornell.edu/infoscience/
• Research areas: interoperability architecture, metadata, content architecture, Scholarly Publishing
• Publications, Personal, etc.– http://www.cs.cornell.edu/lagoze/