Bibliographic Concepts CS 502 20020131 Carl Lagoze Cornell

Bibliographic Concepts CS 502  20020131 Carl Lagoze  Cornell

Bibliographic Concepts CS 502 20020131 Carl Lagoze Cornell University Acks to H. Van de Sompel Cornell CS 502 20020131 People want stuff. Godfrey Rust 1999 Cornell CS 502

20020131 Where did I put that file? Cornell CS 502 20020131 Where is that information? Cornell CS 502 20020131 Am I getting compensated for my talent?

Copies? Derivations? Contributions? Cornell CS 502 20020131 Is that available in a way I can use it? Cornell CS 502 20020131

Are there other resources like these? Cornell CS 502 20020131 Content, Data, Metadata -- informal definitions Content refers to resources as information that is of interest to a user. It is the human view of information: music database literature web site software

Cornell CS 502 Beethoven's Fifth Symphony Genome Database Gone with the wind weather.com MS Word 20020131 Content, Data, Metadata -- informal definitions Data emphasizes on the bits and bytes to be processed by a computer. It is the computer representation of information:

bit and byte layout (e.g., ASCII) compression schemes (e.g., MP3) database schema (e.g., active server pages) Cornell CS 502 20020131 Content, Data, Metadata -- informal definitions Metadata is data about data/content. Descriptive metadata (e.g., catalog records) Administrative metadata (e.g. circulation records) Structural metadata (e.g. serials record) Rights metadata (e.g. shrink wrap license)

Cornell CS 502 20020131 Bibliographic model provides a user with an organized view of content/information/data in a collection collection object = piece of content Cornell CS 502 descriptive metadata: works

creators subjects objectives? bibliographic system 20020131 Traditional models challenged by networked digital information

Scale of corpus or collection Variety of content Internet Commons Unbinding of information from its carrier Mutability of data Requires entity/relationship model basis to express multi-party derivative context Cornell CS 502 20020131 Variants of information entities: to be reflected in bibliographic system Psycho Killer

The score by David Byrne The original recording by Talking Heads Psycho Chicken (cover) by The Fools A live performance by the Fools in 1981 The 45 RPM single released in 1979 Herberts personal copy of that single Cornell CS 502 20020131 IFLA Model to represent object variants: entities Entities are the key objects of interest to users of

bibliographic data (i.e. of a bibliographic system): Group 1 - products of intellectual endeavor: work, expression, manifestation, item Group 2 the parties responsible for the intellectual content: person, corporate body Group 3 the subjects of intellectual endeavor: concept, object, event, place IFLA model is a conceptual framework. It does not provide rigorous definitions Cornell CS 502 20020131 IFLA Model: work, expression, manifestation, item A work is an abstract entity, an idealization e.g.

The Iliad The Weather Channel web site Beethoven's Fifth Symphony Unix operating system The Bible This is roughly equivalent to the concept of "literary work" used in copyright law. Cornell CS 502 20020131 IFLA Model: work, expression, manifestation, item An expression is a realization of a work; a representation of the work in a disseminatable form

e.g. The Iliad has oral expressions and written expressions A musical work has a score, live performance(s), an original recording, cover(s), .... Many works have only a single expression, e.g. a web page, or a book which only has a single edition, a painting, a medieval manuscript. Cornell CS 502 20020131 IFLA Model: work, expression, manifestation, item A manifestation is the concrete embodiment of an

expression; it reflects physical form e.g. The text of The Iliad has been manifested in numerous manuscripts and printed books. A musical recording can be distributed on CD, cassette, or on a soundtrack of a DVD. Cornell CS 502 20020131 IFLA Model: work, expression, manifestation, item When many copies are made of a manifestation, each copy is a separate item, e.g. the Cornell Librarys copy of an edition of the Iliad your copy of the latest Alanis Morissette CD

Cornell CS 502 20020131 IFLA Model: work, expression, manifestation, item C O work N T E N T Cornell CS 502

Psycho Killer 20020131 IFLA Model: work, expression, manifestation, item C O work N T E N expression T Cornell CS 502

Psycho Killer The score by David Byrne The original recording by Talking Heads Psycho Chicken (cover) by The Fools 20020131 IFLA Model: work, expression, manifestation, item C O work N T E

N expression T P H manifestation Y S I C A L Cornell CS 502 Psycho Killer The score by David Byrne The original recording by Talking Heads

Psycho Chicken (cover) by The Fools A live performance by the Fools in 1981 The 45 RPM single released in 1979 20020131 IFLA Model: work, expression, manifestation, item C O work N T E N expression T

P H manifestation Y S I C item A L Cornell CS 502 Psycho Killer The score by David Byrne The original recording by Talking Heads Psycho Chicken (cover) by The Fools A live performance by the Fools in

1981 The 45 RPM single released in 1979 Herberts personal copy of that single 20020131 IFLA Model: work, expression, manifestation, item C O work N T E N expression T

P H manifestation Y S I C item A L Cornell CS 502 An theory in high energy physics A peer-reviewed paper An oral presentation A preprint TeX version posted by the author to

arXiv.org PDF version created by arXiv.org The copy of the TeX version on the Italian mirror of arXiv.org 20020131 Bibliographic model provides a user with an organized view of content in a collection collection object = piece of content Cornell CS 502 descriptive metadata

bundles related content bibliographic system 20020131 Objectives of a bibliographic system 1. To locate objects in a file or database as the result of a search using attributes or relationships of the objects: To find a singular object (known item search) To locate sets of objects representing (search): All objects corresponding to the same work, expression, manifestation All objects by a given author All objects about a given author

All objects on a given subject All objects published by a given publisher All objects defined by other criteria (cf. IFLA entities) Cornell CS 502 20020131 Objectives of a bibliographic system 2. To identify an object (i.e. confirm that a described object corresponds to the sought object or distinguish between objects with similar characteristics) 3. To select an object that is appropriate to the users need 4. To obtain access to an object (purchase, loan,

license, ) 5. To navigate the file or database (browse) Cornell CS 502 20020131 References IFLA Study group on the Functional Requirements for Bibliographic Records: final report. 1998. http://www.ifla.org/VII/s13/frbr/frbr.pdf (chapter 3) Svenonius, E. 2000. The Intellectual Foundation of Information Organization. MIT Press. http://www.netlibrary.com/SUMMARY.ASP? EV=1627610&ID=39954 (part of chapter 2)

Cornell CS 502 20020131

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