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" Exploting a multilingual database electricity Natural language search term: TI= corrente elettrica OR elettricità Strom OR Elektrizität 573 278 149 1123 1123 1123 electrical energia elektrische energy elettrica Energie EUROVOC descriptor: DC= the results were not only consistent across the language versions; they also seemed to be more complete, as the user also avoided the risk of missing important documents for which the chosen search term simply does not appear in the title. Another beneit of the application of the Eurovoc thesaurus, which only at the irst glimpse appears to be of minor importance to the EUR-Lex user, is that the intellectual analysis of the content of the document, which is the basis for the attribution of the descriptors, can be performed independently of the language that a future user might select for the consultation of the thesaurus when searching for documents. Consequently the effort spent for that part of the analysis multiplies per language version in which the thesaurus is available. the Eurovoc thesaurus aims at overcoming the challenges that EUR-Lex potentially provides as a multilingual system, by supporting language coverage as completely as possible for all oficial languages. A different approach is offered by the classiication of the ‘Directory of Community legislation in force’. 2.2. The classiication of the ‘Directory of Community legislation in force’ this tool is used to index legislative acts (including the preparatory works) and provides a numerical classiication system, which comes with 20 headings at entry level. Each of those is marked by two digits (from 01 to 20). the ‘15’, for example, represents ‘Environment, consumers and health protection’. Below the entry level up to three more levels are possible. Overall the classiication comprises an identical set of 465 (sub-)headings in all — at the time — 20 oficial languages. the numerical structure as such guarantees language independence. 01_2007_5222_txt_ML.indd 64 6-12-2007 15:13:42
MEETING <strong>OF</strong> THE COUNCIL WORKING PARTY ON LEGAL DATA PROCESSING But its hierarchical set-up also provides for convenient browsing and navigation through the different levels of headings and the underlying subheadings. Again, the advanced search adds a convenient feature: the selected application of truncation symbols allows for the exploitation of the directory code to search for horizontal criteria relected in the classiication. On the second hierarchy level, i.e. in the numerical system represented by digits three and four, the combination ‘07’ represents the horizontal criterion of ‘statistics’. Consequently, under each of the 20 headings that provide acts on statistics, those references are gathered, inter alia, under this particular subheading. the query [CC=0?07+ OR CC=1?07+ OR CC=2007+] produces a list of all documents (in Sectors 2, 3, 4, and 5) presumably dealing with statistics that are available in the database. for the time being the query resulted in 1 269 hits, the retrieving of which would be almost impossible without the exploitation of the classiication of the ‘Directory of Community legislation in force’. SUmmARy AND CONCLUSION this presentation aimed irst at giving an overview of the EUR-Lex search options allowing the retrieval of one single document. the next step, introducing a irst practical example, was to combine the results of three queries using the CELEX number via the search history of the simple search to produce a well-deined set of documents as a result. Leaving the simple search and moving on to the advanced search then allowed for the combination of any of the ields available in the database. the second example came with a comparably complex query and exploited a ield that cannot be addressed by any simple search option (e.g. the ield containing information on the legal basis). for those further interested in exploiting the additional functions and various search options the advanced search offers, the ‘Visual quick start guide: advanced search’ is recommended reading. In the second part of the presentation, examples were used to demonstrate how the Eurovoc thesaurus and the classiication of the ‘Directory of Community legislation in force’ can support the user in retrieving better results and going beyond the rather weak searching for natural language search terms. Due to the multilingual character of EUR-Lex, the two instruments offer even more value to the system. 64 | 65 01_2007_5222_txt_ML.indd 65 6-12-2007 15:13:42
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Speeches and proceedings 25th anniv
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25 YEARS OF ONLINE THE EVENT 25 ANN
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INTRODUCTION APRèS LA PUBLICAtION
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COHERENCE OF TERMINOLOGY AND SEARCH
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EUR-LEX: FROM DATA STRUCTURES TO LE
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WORKSHOP REfERENCES Bench-Capon, t.
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PRESS REVIEW / REVUE DE PRESSE " 17
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