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Michael Panzer Assistant Editor, DDC OCLC [email protected]. Dewey + DDC-driven resource discovery. Dewey Breakfast/Update 25 June 2011. Outline. DDC’s role in resource discovery Dewey + geospatial retrieval - PowerPoint PPT Presentation
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Dewey Breakfast/Upda
te 25 June 2011
Michael PanzerAssistant Editor, DDCOCLC [email protected]
Dewey +
DDC-driven resource discovery
Dewey +
DDC-driven resource discovery
OutlineOutline
1. DDC’s role in resource discovery
2. Dewey + geospatial retrieval
• Structural prerequisite: MARC fields 034, 043
• Semantic prerequisite: geocodes
3. Dewey + subject headings (+ facet-based retrieval)
• Structural prerequisite: MARC fields 083, 085
• Semantic option: LCSH / FAST mapping
034 ## $d W0140000 $e W0140000 $f N0140000 $g N0140000 $2 geonames
043 ## $a f-sg---
153 ## $z 2 $a 663 $z 2 $e 66 $h Geographic Areas, Historical Periods, Biography $k Specific continents, countries, localities; extraterrestrial worlds $k Modern world; extraterrestrial worlds $k Africa $k West Africa and offshore islands $j Senegal
MARBI Proposal 2011-10: Geographic Codes in the MARC 21 Classification Format
MARBI Proposal 2011-10: Geographic Codes in the MARC 21 Classification Format
Coordinates: 14ºN, 14ºW
Source: GeoNames
MARC Geographic Area Code
751 ## $a Republic of Niger $0 (GeoNames)2440476 $2 geonames
Link to GeoName resource
Placing Dewey on the mapPlacing Dewey on the map
Placing Dewey on the map: HierarchiesPlacing Dewey on the map: Hierarchies
Turkey / Bosporus (Europe & Asia)
T2—49618T2—49618 T2—5632
T2—5633
Notational vs. Geospatial hierarchyNotational vs. Geospatial hierarchy
Geospatial reasoningGeospatial reasoning
Question: “Display all Dewey numbers that represent countries that are adjacent to T2—6626.”
OutlineOutline
1. DDC’s role in resource discovery
2. Dewey + geospatial retrieval
• Structural prerequisite: MARC fields 034, 043
• Semantic prerequisite: geocodes
3. Dewey + subject headings (+ facet-based retrieval)
• Structural prerequisite: MARC fields 083, 085
• Semantic prerequisite: LCSH mapping
Dewey number: 839.738
+ FAST subject headings
+ Genre (LCSH / GSAFD)
394.12
Related works: Dewey+ vs. GoogleRelated works: Dewey+ vs. Google
-Google:
- Shows you “more of the same” (e.g., books from Michael Pollan)
- Supports known-item search (searching for a version of a specific work)
-Dewey+ (“Kindred Works”):
- Shows you “more of the different” (cultural-historical accounts of eating and drinking)
- Supports exploratory search (exploring a subject/topic space)
394.12
394.120973
394.120954
Dewey-driven discovery: Number components + geocodesDewey-driven discovery: Number components + geocodes
394.120954394.12 + T2—54
394.120954
Neighboring countries:China T2—51Pakistan T2—5491Bangladesh T2—5492Nepal T2—5496Bhutan T2—5498Myanmar T2—591
notational
structural
394.13 + T2—51
gn:neighbour
394.13 Drinking of alcoholic
beverages
394.125 Meals
395.54 Table manners
structural
Dewey-driven discovery: Number components + geocodesDewey-driven discovery: Number components + geocodes
796.522095496
796.522 + T2—5496
796.522095496
796.52
796.51 Walking
Distance from Everest, Mount (China and Nepal)
to Tibet Autonomous Region (China): 535.38kmto Nepal: 287.22kmto Himalaya Mountains: 287.22kmto Rajshahi (Bangladesh : Division): 391.15kmto West Bengal (India): 456.25kmto Bengal (India): 456.25kmto Southern India: 163.92kmto Bhutan: 355.94kmto Jharkhand (India : State): 492.32km
notational
structural
796.51 + T2—515
Distance < ~500km
913-919 ?