Dewey Dewey BreakfastUpdate 25 June 2011 DDCdriven resource

Dewey + Dewey Breakfast/Update 25 June 2011 DDC-driven resource discovery Michael Panzer Assistant Editor, DDC OCLC panzerm@oclc. org

Outline 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

MARBI Proposal 2011 -10: Geographic Codes in the MARC 21 Classification Format 034 ## $d W 0140000 $e W 0140000 $f N 0140000 $g N 0140000 $2 geonames Coordinates: 14ºN, 14ºW 043 ## $a f-sg--- Source: Geo. Names 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 MARC Geographic Area Code 751 ## $a Republic of Niger $0 (Geo. Names)2440476 $2 geonames Link to Geo. Name resource

Placing Dewey on the map

Placing Dewey on the map: Hierarchies Turkey / Bosporus (Europe & Asia) T 2— 49618 T 2— 5632 T 2— 5633

Notational vs. Geospatial hierarchy

Geospatial reasoning Question: “Display all Dewey numbers that represent countries that are adjacent to T 2 — 6626. ”

Outline 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. 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. 120973 394. 120954

Dewey-driven discovery: Number components + geocodes 394. 120954 394. 12 + T 2— 54 gn: neighbour 394. 125 Meals notational structural 394. 120954 395. 54 Table manners structural 394. 13 Drinking of alcoholic beverages 394. 13 + T 2— 51 Neighboring countries: China T 2— 51 Pakistan T 2— 5491 Bangladesh T 2— 5492 Nepal T 2— 5496 Bhutan T 2— 5498 Myanmar T 2— 591

Thank you! Comments, questions, suggestions? Michael Panzer panzerm@oclc. org

Dewey-driven discovery: Number components + geocodes 796. 522095496 796. 522 + T 2— 5496 913 -919 ? 796. 51 Walking Distance from Everest, Mount (China and Nepal) to to to Tibet Autonomous Region (China): 535. 38 km Nepal: 287. 22 km Himalaya Mountains: 287. 22 km Ra jsha hi (Bangladesh : Division): 391. 15 km West Bengal (India): 456. 25 km Southern India: 163. 92 km Bhutan: 355. 94 km Jharkhand (India : State): 492. 32 km structural 796. 52 Distance < ~500 km notational 796. 522095496 796. 51 + T 2— 515