LIS618 lecture 2

Dialog by example

Thomas Krichel2011-04-21

task

• find out about published literature mentioning Thomas Krichel

• Known:– economist– information scientist– founder of RePEc

• Limit search to Dialog. Known source Journal of Economic Literature.

find the JEL file

• ? b 415• File 415:DIALOG Bluesheets(TM) • ? s economic(N)literature• S1 1 ECONOMIC(N)LITERATURE • ? t s1/ti/all

ECONLIT - File 139 • ? b 139

start with econlit

• ? krichel• S1 0 KRICHEL • We should have a look at the bluesheet

http://library.dialog.com/bluesheets/html/bl0139.html

• We find authors are not in the basic index.

we can find out about papers written

• s au=thomas krichelS2 0 AU=THOMAS KRICHEL

• ? s au=krichelS3 0 AU=KRICHEL

• ? s au=krichel,thomasS4 0 AU=KRICHEL,THOMAS

• ? s au=krichel, thomasS5 8 AU=KRICHEL, THOMAS

• ? s au=krichel, t.S6 0 AU=KRICHEL, T.

turning to RePEc• ? b 139• ? s repec• S1 38 REPEC• ? t s1/k/all• ? s (repec/ti) or (repec/ab) or (repec/de)• 3 REPEC/TI • 10 REPEC/AB• 30 REPEC/DE • S2 38 (REPEC/TI) OR (REPEC/AB) OR (REPEC/DE)

evaluating

• The ones that have RePEc in the title and abstract are about RePEc or use it extensively.

• The ones that have it in the descriptors sometimes have a URL of the form ../wider/…/repec/… meaning the information has been made available as part of RePEc.

• The entries for the copyright are on all EconLit entries that come from RePEc. They are not searchable.

descriptor records

• ? s (repec/de) not (repec/ti) not (repec/ab)30 REPEC/DE

• 27 (REPEC/DE) NOT (REPEC/TI) NOT (REPEC/AB)

• ? s (repec/de) not (repec/ti) not (repec/ab) not (wider/de) ? s (repec/de) not (repec/ti) not (repec/ab) not (wider/de)

• S4 0 (REPEC/DE) NOT (REPEC/TI) NOT (REPEC/AB) NOT (WIDER/DE)

first set

• The 3 papers that have RePEc in the title talk about RePEc.

• The 8 that have RePEc in the abstract but not in the title use RePEc. We put those into a latter part of our written report to the patron.

• There are probably more papers that use RePEc but the use has not been reported.

look at infosci• ? b infosci• File 1: ERIC • File 2: INSPEC • File 7: Social SciSearch(R) • File 47: Gale Group Magazine DB• File 121: Brit.Education Index • File 148: Gale Group Trade & Industry • File 438: Library Lit. & Info. Science

finding the right krichel• ? s krichel• S1 15 KRICHEL • ? t s1/k/all• Manual inspection reveals that all the records that

relate to the patron either are– krichel(N)thomas– krichel(N)t– tkrichel(N)openlib

• ? s krichel(N)thomas or krichel(N)t or tkrichel(N)openlib

• We get 13 records that deal with the patron in different ways, it is prudent to add all to the report.

move on to RePEc

• ? s repec not (krichel(N)thomas or krichel(N)t or krichel(N)openlib)

• 111 REPEC • 107 REPEC NOT (KRICHEL(N)THOMAS OR

KRICHEL(N)T OR KRICHEL(N)OPENLIB)• How to filter this?

filtering URLs• First, kwic inspection reveals that a lot of

records have URLs of the form http://ideas.repec.org/….

• ? s s1 not (http(N)ideas(N)repec(n)org)• 107 S1 • 4218576 HTTP • 644548 IDEAS • 111 REPEC 551055 ORG • 46 HTTP(N)IDEAS(N)REPEC(N)ORG • S3 61 S1 NOT (HTTP(N)IDEAS(N)REPEC(N)ORG)

better filtering

• There are some URLs that have a RePEc in the URL as part of the path, so

• s s9 not (http(5N)repec(N)org or edu(2N)repec not au=krichel t)

• When looking at this, there are about half the papers that appear to be relevant, but I have not been able to find a clever filter for those.

http://openlib.org/home/krichel

Please shutdown the computers whenyou are done.

Thank you for your attention!