Leppanen, E.: Homografiongelma tekstihaussa ja homografien disambiguoinnin vaikutukset (1996)
0.01
0.0062703826 = product of:
0.02508153 = sum of:
0.015429379 = weight(_text_:of in 27) [ClassicSimilarity], result of:
0.015429379 = score(doc=27,freq=10.0), product of:
0.066563755 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.04256655 = queryNorm
0.23179851 = fieldWeight in 27, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=27)
0.00965215 = product of:
0.0193043 = sum of:
0.0193043 = weight(_text_:on in 27) [ClassicSimilarity], result of:
0.0193043 = score(doc=27,freq=4.0), product of:
0.09362151 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.04256655 = queryNorm
0.20619515 = fieldWeight in 27, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.046875 = fieldNorm(doc=27)
0.5 = coord(1/2)
0.25 = coord(2/8)
- Abstract
- Homonymy is known to often cause false drops in free text searching in a full text database. The problem is quite common and difficult to avoid in Finnish, but nobody has examined it before. Reports on a study that examined the frequency of, and solutions to, the homonymy problem, based on searches made in a Finnish full text database containing about 55.000 newspaper articles. The results indicate that homonymy is not a very serious problem in full text searching, with only about 1 search result set out of 4 containing false drops caused by homonymy. Several other reasons for nonrelevance were much more common. However, in some set results there were a considerable number of homonymy errors, so the number seems to be very random. A study was also made into whether homonyms can be disambiguated by syntactic analysis. The result was that 75,2% of homonyms were disambiguated by this method. Verb homonyms were considerably easier to disambiguate than substantives. Although homonymy is not a very big problem it could perhaps easily be eliminated if there was a suitable syntactic analyzer in the IR system
- Footnote
- Übers. d. Titels: The homonymy problem in free text searching and the results of homonymy disambiguation
