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LIS618 lecture 11 Citation indexing and searching

LIS618 lecture 11 Citation indexing and searching. Thomas Krichel 2002-04-30. citation indexing. is a technique that can be used if there on documents that cite other documents scientific papers patents legal documents pioneered by Shepherd's citation index to case law since 1870s.

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LIS618 lecture 11 Citation indexing and searching

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  1. LIS618 lecture 11Citation indexing and searching Thomas Krichel 2002-04-30

  2. citation indexing • is a technique that can be used if there on documents that cite other documents • scientific papers • patents • legal documents • pioneered by Shepherd's citation index to case law since 1870s

  3. citation vs word indexing • word indexing as severe limitations • different authors use different words • language evolves • controlled vocabularies can help but • reduce the subject to the categories • are subject to human error • in contrast citation indexing appears more mechanical and thus objective

  4. citation quality • good citation data is a sign of good scholarship • good citation data • has all relevant papers cited to show that the authors are aware of related literature • citation has to conform to journal style • but citation styles vary a lot for disciplines • citations in the hard sciences are a lot more formal

  5. citation indexes to scientific papers • essentially pioneered by Eugene Garfield • chemical citation index in the late 50s • index of genetics in the early 60s • ISI issued an interdisciplinary science citation index in the 60s • Extended to social science citation index and arts and humanities citation index • virtual monopoly

  6. impact factor • is the rate of citations that articles in a journal receive divided by the number of articles that a journal publisher • has become over time a crucial indicator of journal quality • given the ISI a monopoly position in the evaluation of journal quality

  7. citation index for a year NAIR KG 66 BIOCHEMESTRY 5 150 DESOUSA RC J PHYSL PAR R 71 5 75 MASLINSK. C AGENT ACTION 5 183 75 … 68 CIRCULATION RESEARCH 23 ANVERSA P LAB INV 33 125 75 …

  8. Source index LUTZ H RETTENMA.G (DE) ULTRASONIC DIAGNOSIS OF RENAL DESEASE DEUT MED WO 98 361 73 17R N8 • there is also a patent index

  9. type of searches • citation verification – uses source index only • eponymic search • methodology search • follow-up searches • review searches • precise question searches • exhaustive bibliographies

  10. usefulness of citation indexing • subject categorization is • more precise • more stable • more flexible • more detailed • reveals links between old and new papers • draws our attention to events that have happened

  11. most successful application • google uses graph structure of web links to distinguish between important and not important pages. • pages that have many links to them by important pages are deemed to be important.

  12. Other application: CiteSeer • Is an application that downloads papers from the web and indexes their citations. • It finds more papers where the URL of the cited paper is given. • Claim to index 600,000 papers (which is a lot!)

  13. Access to ISI citation data • http://access.isiproducts.com/educate • User id: liu83 • Password: educate • Contains • ISI Web of Science • Journal citation report • Current Contents Connect • ISI Proceedings • Derwent Innovations Index.

  14. Thank you for your attention! http://openlib.org/home/krichel

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