Download Dialog by example

LIS618 lecture 2
Dialog by example
Thomas Krichel
2011-04-21
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
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? 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/bl0
139.html
• We find authors are not in the basic index.
we can find out about papers written
• s au=thomas krichel
S2 0 AU=THOMAS KRICHEL
• ? s au=krichel
S3 0 AU=KRICHEL
• ? s au=krichel,thomas
S4 0 AU=KRICHEL,THOMAS
• ? s au=krichel, thomas
S5 8 AU=KRICHEL, THOMAS
• ? s au=krichel, t.
S6 0 AU=KRICHEL, T.
turning to RePEc
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? 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
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? 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
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? 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 when
you are done.
Thank you for your attention!