Mul$lingual subject access and classifica$on-based browsing - PowerPoint PPT Presentation

Mul$lingual ¡subject ¡access ¡and ¡classifica$on-‑based ¡ browsing ¡through ¡authority ¡control: ¡the ¡experience ¡of ¡the ¡ ETH-‑Bibliothek ¡ ¡ ¡ Jiri ¡Pika ¡ ¡ UDC ¡Editorial ¡Team, ¡Zurich, ¡Switzerland ¡ ¡ ¡ ¡ ¡ ¡ Milena ¡Pika-‑Biolzi ¡ ¡ ¡ ETH-‑Zurich, ¡Zurich, ¡Switzerland ¡ Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 1 |

NEBIS * ¡Catalogue ¡view ¡of ¡the ¡subject ¡authority ¡record ¡for ¡ ¡ 'diamond' ¡ ¡ *NEBIS ¡ -‑ ¡Netzwerk ¡von ¡Bibliotheken ¡und ¡InformaBonsstellen ¡in ¡der ¡Schweiz ¡ ¡ ¡ ¡ ¡ NEBIS ¡ ¡ Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 2 |

NEBIS ¡Catalogue ¡view ¡of ¡the ¡subject ¡authority ¡record ¡for ¡ ¡ 'diamond' ¡ ¡ ¡ ¡ ¡ ¡ NEBIS ¡ ¡ subject browsing and searching interface comprehensive subject index good management of subject authorities Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 3 |

Mul$lingual ¡subject ¡access ¡and ¡classifica$on-‑based ¡ browsing ¡through ¡authority ¡control: ¡the ¡experience ¡of ¡the ¡ ETH-‑Bibliothek ¡ ¡ ¡ ¡ - Subject searching in NEBIS-OPAC - Approach to subject indexing in the ETH-Bibliothek - Managing vocabulary through subject authority control in NEBIS - Indexing interface in NEBIS ¡ ¡ Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 4 |

2. ¡Subject ¡searching ¡in ¡NEBIS ¡ ¡ ¡ ¡ ¡ ¡ ¡ 2.8 million documents classified with UDC (ETH-Bib. Collection) > 50 languages: English, G, F, I & RR - four official Swiss languages ¡ the largest + most important library for the field of science and technology in Switzerland The need for detailed content indexing derives • from the significance of this collection for the Swiss academic and research community • it has no open access ETH collection - part of the NEBIS catalogue with 7.9 million books, journals and serials in 140 libraries of the NEBIS network Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 5 |

2. ¡Subject ¡searching ¡in ¡NEBIS ¡ ¡ ¡ ¡ ¡ The OPAC interface: allows search in English, German and French Special for this catalogue: once the search with a simple natural language term has been done ¡ • a result list offers access to a subject authority record • user can opt for semantic search expansion through hyperlink for broader, narrower and related terms Here the options to explore the subject 'diamond' - to expand the search: • BT (Carbon group in Mineralogy) • RT (Synthetic diamonds) derive both from the UDC hierarchy and class relationships (see also) Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 6 |

NEBIS ¡authority ¡file ¡uses ¡UDC ¡to ¡establish ¡semanBc ¡and ¡ associaBve ¡relaBonships ¡BT, ¡NT, ¡RT ¡ Advantage of this interface is not only of applying UDC and its combination with subject descriptors, but the choice of NEBIS' browsing method by which users can move through a classification without being aware of the classification scheme they use Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 7 |

3. ¡Approach ¡to ¡subject ¡indexing ¡in ¡the ¡ETH-‑Bibliothek ¡ 3.1 ¡ ¡Making ¡best ¡use ¡of ¡UDC: ¡Mo$va$on ¡ the majority of the collection is not in open access - the only way to view its content - through subject metadata search therefore, the ETH-Bibliothek applies: - very detailed subject indexing and - advanced browsing and searching functionality Three authoritative features of the UDC are particularly useful: 1. UDC's synthetic feature 2. Provision for extensions • Alphabetical extensions • Local extensions = local classification 3. Common auxiliaries ( place, time, form, person, etc. ) for each UDC number Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 10 |

3. ¡Approach ¡to ¡subject ¡indexing ¡in ¡the ¡ETH-‑Bibliothek ¡ 3.1 ¡ ¡Making ¡best ¡use ¡of ¡UDC ¡ 1. UDC's synthetic feature - connecting UDC notations Preferably* 622 Mining and 552.523 Clay to express 622:552.523 Mining : Clay rather than 622.361 Clay mining Synthesis prevents index expansion and growth ! *whenever possible: co-ordination of subjects, i.e. post-coordinate searching in the catalogue Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 11 |

3.1 ¡ ¡Making ¡best ¡use ¡of ¡UDC ¡ 2. Extensions - Alphabetical extensions, allowed in UDC, following the asterisk symbol * 551*2 Geotopes, Geosites, World Heritage - Local extensions = local classification, following the comma (non UDC s.) for direct extensions of UDC hierarchy, e.g. UDC class 622.228,1 Abandoned mines from 622.228 Abandoned mines. Reopening, re-equipping of mines Extensions: driven by the need to include more specific or emerging terminology not yet developed in the UDC scheme The asterisk and comma symbols denote the point at which standard UDC notation finishes and local extensions start Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 12 |

3.1 ¡ ¡The ¡applica$on ¡of ¡UDC ¡in ¡ETH-‑Bibliothek ¡ ¡ results : ¡various ¡levels ¡of ¡synthesis ¡ ¡ ¡ ¡ ¡ Discipline 55 Earth Sciences. Geology Subdiscipline see also Related Subject 551 General Geology 622 Mining Subdivisions Freely constructed UDC-numbers, built by the indexers Official UDC Special Common Specification Main numbers in Subdivisions Auxiliaries Auxiliaries by non-UDC simple relation by notation colon 550.8.01 55(091) 551*1 55:912 OR 912:55 551.1 Applied Geology History of Geology Locus Typicus Geological maps Type Locality Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 13 |

3.1 ¡ ¡The ¡applica$on ¡of ¡UDC ¡in ¡ETH-‑Bibliothek ¡ ¡ results : ¡various ¡levels ¡of ¡synthesis ¡ ¡ ¡ ¡ ¡ Subdivisions Freely constructed UDC-numbers, built by the indexers Official UDC Special Common Specification Main numbers in Subdivisions Auxiliaries Auxiliaries by non-UDC simple relation by notation colon 550.8.01 55(091) 551*1 55:912 OR 912:55 551.1 Applied Geology History of Geology Locus Typicus Geological maps Type Locality 551.2 550.8.013 55(26) 551%502.58 Experimental Marine Geology 551*2 Naturgefahren 551.3 Geology Geotop Natural Hazards 55(494) Geotopes 551.4 Geology of Geosites 551%528.7 Switzerland World Heritage Photogeologie Photogeology 551.5 55"18" Geology in the 19 th 551.6 century % stands for double colon :: 551.7 55-051 Geologen/ 551.8 Geologinnen Geologists Freely constructed UDC-numbers, built by the indexers Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 14 |

3.2 ¡Managing ¡natural ¡language ¡terms ¡ ¡ NEBIS: detailed subject index to classification UDC classmarks => placeholders for numerous search terms in German, English and French search terms : descriptors (UDC), synonyms, technical terms, specialist jargon, popular scientific terminology, abbreviations and related/associated terms, term inversions And especially: natural language terms “chemical reactions in the atmosphere” or “convection in earth mantle” The ultimate goal is to help users find subjects with ease, irrespective of whether they use jargon or a colloquialism or search in English, German or French Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 15 |

3.2 ¡Managing ¡natural ¡language ¡terms ¡ ¡ Multilingual subject access: ETH-Bibliothek | pika & pika-biolzi 16 |

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Mul$lingual subject access and classifica$on-based browsing - PowerPoint PPT Presentation

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