Dewey Breakfast/Upda

te 25 June 2011

Michael PanzerAssistant Editor, DDCOCLC panzerm@oclc.org

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

Thank you!Thank you!

Comments, questions, suggestions?

Michael Panzer

panzerm@oclc.org

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 ?