-
Hirawa, M.: Role of keywords in the network searching era (1998)
0.05
0.049155936 = product of:
0.09831187 = sum of:
0.033397563 = weight(_text_:retrieval in 3446) [ClassicSimilarity], result of:
0.033397563 = score(doc=3446,freq=2.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.26736724 = fieldWeight in 3446, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=3446)
0.03422346 = weight(_text_:use in 3446) [ClassicSimilarity], result of:
0.03422346 = score(doc=3446,freq=2.0), product of:
0.12644777 = queryWeight, product of:
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.041294612 = queryNorm
0.27065295 = fieldWeight in 3446, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.0625 = fieldNorm(doc=3446)
0.021862645 = weight(_text_:of in 3446) [ClassicSimilarity], result of:
0.021862645 = score(doc=3446,freq=12.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.33856338 = fieldWeight in 3446, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=3446)
0.008828212 = product of:
0.017656423 = sum of:
0.017656423 = weight(_text_:on in 3446) [ClassicSimilarity], result of:
0.017656423 = score(doc=3446,freq=2.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.19440265 = fieldWeight in 3446, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0625 = fieldNorm(doc=3446)
0.5 = coord(1/2)
0.5 = coord(4/8)
- Abstract
- A survey of Japanese OPACs available on the Internet was conducted relating to use of keywords for subject access. The findings suggest that present OPACs are not capable of storing subject-oriented information. Currently available keyword access derives from a merely title-based retrieval system. Contents data should be added to bibliographic records as an efficient way of providing subject access, and costings for this process should be estimated. Word standardisation issues must also be addressed
- Source
- Igaku Toshokan (Journal of the Japan Medical Library Association). 45(1998) no.2, S.222-227
-
Sugano, I.: ¬The study of criteria for evaluating OPACs as information retrieval systems (1996)
0.04
0.04225354 = product of:
0.11267611 = sum of:
0.066795126 = weight(_text_:retrieval in 1626) [ClassicSimilarity], result of:
0.066795126 = score(doc=1626,freq=8.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.5347345 = fieldWeight in 1626, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=1626)
0.028224554 = weight(_text_:of in 1626) [ClassicSimilarity], result of:
0.028224554 = score(doc=1626,freq=20.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.43708345 = fieldWeight in 1626, product of:
4.472136 = tf(freq=20.0), with freq of:
20.0 = termFreq=20.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=1626)
0.017656423 = product of:
0.035312846 = sum of:
0.035312846 = weight(_text_:on in 1626) [ClassicSimilarity], result of:
0.035312846 = score(doc=1626,freq=8.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.3888053 = fieldWeight in 1626, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0625 = fieldNorm(doc=1626)
0.5 = coord(1/2)
0.375 = coord(3/8)
- Abstract
- Most of the criteria proposed to date for the evaluation of OPACs focus on evaluation of their retrieval function. Argues that the storage function is more important because the quality of information retrieval systems is dependent on the quality of stored information as well as the description and depth of indexing of stored information. States that OPACs should therefore be evaluated from the perspectives of both storage and retrieval functions. Examines 4 studies on criteria for evaluating OPACs and suggests a new evaluation framework based on the work of C.R. Hildreth
-
Shimo, Y.: Indexing and retrieval methods of moving image database for television news (1995)
0.04
0.04032336 = product of:
0.10752896 = sum of:
0.057846278 = weight(_text_:retrieval in 609) [ClassicSimilarity], result of:
0.057846278 = score(doc=609,freq=6.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.46309367 = fieldWeight in 609, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=609)
0.03422346 = weight(_text_:use in 609) [ClassicSimilarity], result of:
0.03422346 = score(doc=609,freq=2.0), product of:
0.12644777 = queryWeight, product of:
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.041294612 = queryNorm
0.27065295 = fieldWeight in 609, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.0625 = fieldNorm(doc=609)
0.0154592255 = weight(_text_:of in 609) [ClassicSimilarity], result of:
0.0154592255 = score(doc=609,freq=6.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.23940048 = fieldWeight in 609, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=609)
0.375 = coord(3/8)
- Abstract
- Discusses indexing methods for moving graphical images and suggests the use of the new indexing language, the Moving Picture Description Language (MPDL) which has the following 7 frames: subject, time, location, object, characteristics, actions, and sensibility. MPDL allows indexers to assign one or more indexing terms to each frame. The retrieval experiment used 110 video images obtained from television news indexed by MPDL and other indexing methods and revealed that MPDL was the superior method. Suggests that MPDL presents many opportunities for improving the indexing and retrieval of the moving graphical image
-
Kim, S.Y.: Search strategy, search tactics, moves (1995)
0.04
0.035881132 = product of:
0.09568302 = sum of:
0.04174695 = weight(_text_:retrieval in 622) [ClassicSimilarity], result of:
0.04174695 = score(doc=622,freq=2.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.33420905 = fieldWeight in 622, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.078125 = fieldNorm(doc=622)
0.04277933 = weight(_text_:use in 622) [ClassicSimilarity], result of:
0.04277933 = score(doc=622,freq=2.0), product of:
0.12644777 = queryWeight, product of:
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.041294612 = queryNorm
0.3383162 = fieldWeight in 622, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.078125 = fieldNorm(doc=622)
0.011156735 = weight(_text_:of in 622) [ClassicSimilarity], result of:
0.011156735 = score(doc=622,freq=2.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.17277241 = fieldWeight in 622, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.078125 = fieldNorm(doc=622)
0.375 = coord(3/8)
- Abstract
- The terms search strategy, search tactics, and moves are used to refer to interaction between an information retrieval system and the user. Examines papers using search strategy, search tactics, moves and analyzes the meaning of these terms. Suggests the need to use strategy and moves in information seeking studies
-
Takeda, N.: Problems in hierarchical structures in thesauri : their influences on the results of information retrieval (1994)
0.03
0.033201423 = product of:
0.08853713 = sum of:
0.057846278 = weight(_text_:retrieval in 2642) [ClassicSimilarity], result of:
0.057846278 = score(doc=2642,freq=6.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.46309367 = fieldWeight in 2642, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=2642)
0.021862645 = weight(_text_:of in 2642) [ClassicSimilarity], result of:
0.021862645 = score(doc=2642,freq=12.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.33856338 = fieldWeight in 2642, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=2642)
0.008828212 = product of:
0.017656423 = sum of:
0.017656423 = weight(_text_:on in 2642) [ClassicSimilarity], result of:
0.017656423 = score(doc=2642,freq=2.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.19440265 = fieldWeight in 2642, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0625 = fieldNorm(doc=2642)
0.5 = coord(1/2)
0.375 = coord(3/8)
- Abstract
- In online retrieval search results do not always match the intent in spite of using correct keywords (descriptors). One of the causes of this problem is found in the hierarchical structures of the thesaurus, which often contains relations between broader and narrower concepts, the opposite of which is not necessarily true. Some examples are described from 2 thesauri, MeSH and JICST. In these cases searchers need to make an effort to increase precision
- Theme
- Verbale Doksprachen im Online-Retrieval
-
Kim, P.K.: ¬An automatic indexing of compound words based on mutual information for Korean text retrieval (1995)
0.03
0.0292208 = product of:
0.077922136 = sum of:
0.047231287 = weight(_text_:retrieval in 620) [ClassicSimilarity], result of:
0.047231287 = score(doc=620,freq=4.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.37811437 = fieldWeight in 620, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=620)
0.021862645 = weight(_text_:of in 620) [ClassicSimilarity], result of:
0.021862645 = score(doc=620,freq=12.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.33856338 = fieldWeight in 620, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=620)
0.008828212 = product of:
0.017656423 = sum of:
0.017656423 = weight(_text_:on in 620) [ClassicSimilarity], result of:
0.017656423 = score(doc=620,freq=2.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.19440265 = fieldWeight in 620, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0625 = fieldNorm(doc=620)
0.5 = coord(1/2)
0.375 = coord(3/8)
- Abstract
- Presents an automatic indexing technique for compound words suitable for an agglutinative language, specifically Korean. Discusses some construction conditions for compound words and the rules for decomposing compound words to enhance the exhaustivity of indexing, demonstrating that this system, mutual information, enhances both the exhaustivity of indexing and the specifity of terms. Suggests that the construction conditions and rules for decomposition presented may be used in multilingual information retrieval systems to translate the indexing terms of the specific language into those of the language required
-
Klein, R.D.: ¬The problem of cataloguing world literature using the Nippon Decimal Classification (1994)
0.03
0.027920114 = product of:
0.07445364 = sum of:
0.03422346 = weight(_text_:use in 867) [ClassicSimilarity], result of:
0.03422346 = score(doc=867,freq=2.0), product of:
0.12644777 = queryWeight, product of:
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.041294612 = queryNorm
0.27065295 = fieldWeight in 867, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.0625 = fieldNorm(doc=867)
0.017850775 = weight(_text_:of in 867) [ClassicSimilarity], result of:
0.017850775 = score(doc=867,freq=8.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.27643585 = fieldWeight in 867, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=867)
0.0223794 = product of:
0.0447588 = sum of:
0.0447588 = weight(_text_:22 in 867) [ClassicSimilarity], result of:
0.0447588 = score(doc=867,freq=2.0), product of:
0.1446067 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.041294612 = queryNorm
0.30952093 = fieldWeight in 867, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=867)
0.5 = coord(1/2)
0.375 = coord(3/8)
- Abstract
- The Nippon Decimal Classification (NDC) system, extensively used in Japanese libraries, was devised in 1929. It is difficult to use NDC to classify world literature, such as fiction in English by non American, non British writers. This is not necessarily straightforward in other classification schemes but a survey of 40 Japanese university libraries, of which 24 responded, showed remarkable inconsistencies in the treatment of 22 world literature authors. NDC clearly needs updating to deal with this problem
-
Suzuki, Y.: Partial information and its information structure (1995)
0.03
0.02771635 = product of:
0.073910266 = sum of:
0.047231287 = weight(_text_:retrieval in 6584) [ClassicSimilarity], result of:
0.047231287 = score(doc=6584,freq=4.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.37811437 = fieldWeight in 6584, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=6584)
0.017850775 = weight(_text_:of in 6584) [ClassicSimilarity], result of:
0.017850775 = score(doc=6584,freq=8.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.27643585 = fieldWeight in 6584, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=6584)
0.008828212 = product of:
0.017656423 = sum of:
0.017656423 = weight(_text_:on in 6584) [ClassicSimilarity], result of:
0.017656423 = score(doc=6584,freq=2.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.19440265 = fieldWeight in 6584, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0625 = fieldNorm(doc=6584)
0.5 = coord(1/2)
0.375 = coord(3/8)
- Abstract
- Almost all information systems have their own logic. Differentiates between classical and non classical logic, the main example of which is intuitionistic logic which was created to treat partial information. Explains this, discusses the information structure based on intuitionalistic logic, and introduces an intuitionistic information retrieval system. This work represents an introduction to the development of the general theory of partial information and the theory of information retrieval systems which can treat partial information
-
Voshida, K.: ¬A study on improving subject access to the OPAC : a survey of catalogue use comparing an OPAC and a card catalogue in a private university library (1994)
0.03
0.02696376 = product of:
0.071903355 = sum of:
0.036299463 = weight(_text_:use in 753) [ClassicSimilarity], result of:
0.036299463 = score(doc=753,freq=4.0), product of:
0.12644777 = queryWeight, product of:
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.041294612 = queryNorm
0.2870708 = fieldWeight in 753, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.046875 = fieldNorm(doc=753)
0.024135707 = weight(_text_:of in 753) [ClassicSimilarity], result of:
0.024135707 = score(doc=753,freq=26.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.37376386 = fieldWeight in 753, product of:
5.0990195 = tf(freq=26.0), with freq of:
26.0 = termFreq=26.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.046875 = fieldNorm(doc=753)
0.011468184 = product of:
0.022936368 = sum of:
0.022936368 = weight(_text_:on in 753) [ClassicSimilarity], result of:
0.022936368 = score(doc=753,freq=6.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.25253648 = fieldWeight in 753, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.046875 = fieldNorm(doc=753)
0.5 = coord(1/2)
0.375 = coord(3/8)
- Abstract
- Describes a study conducted to compare the use of a new OPAC with that of the card catalogue looking primarily at the area of subject access. Library science students at a private university were asked to respond to questions concerning: the number of subject searches and searches for specific items that they carried out on the OPAC and on the card catalogue; the success rate of the catalogue searches; how the search was carried out (classification number or keywords); librarian assistance required; and knowledge of the Nippon Decimal Classification. Results revealed that while there was an increase in the number of users as a result of the introduction of OPAC facilities, there were certain aspects which required attention such as the area of subject searches
- Source
- Annals of Japan Society of Library Science. 40(1994) no.2, S.71-82
-
Ito, J.: Bibliographic structure : a frame of reference for bibliographic relationships (1994)
0.03
0.025468916 = product of:
0.06791711 = sum of:
0.029945528 = weight(_text_:use in 3085) [ClassicSimilarity], result of:
0.029945528 = score(doc=3085,freq=2.0), product of:
0.12644777 = queryWeight, product of:
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.041294612 = queryNorm
0.23682132 = fieldWeight in 3085, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.0546875 = fieldNorm(doc=3085)
0.030246895 = weight(_text_:of in 3085) [ClassicSimilarity], result of:
0.030246895 = score(doc=3085,freq=30.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.46840128 = fieldWeight in 3085, product of:
5.477226 = tf(freq=30.0), with freq of:
30.0 = termFreq=30.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0546875 = fieldNorm(doc=3085)
0.007724685 = product of:
0.01544937 = sum of:
0.01544937 = weight(_text_:on in 3085) [ClassicSimilarity], result of:
0.01544937 = score(doc=3085,freq=2.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.17010231 = fieldWeight in 3085, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0546875 = fieldNorm(doc=3085)
0.5 = coord(1/2)
0.375 = coord(3/8)
- Abstract
- Attempts to provide a theoretical rationale for the taxonomy of bibliographic relationships between a given work and its related bibliographic entities. Examines the bibliographic structure of the document carrying the messages in terms of their bibliographic functions of use and preservation, since the most common bibliographic relationships are normally revealed within the document itself. Defines the bibliographic characteristics of the document from the perspective of an analysis of the pattern of their structural elements. Presents 4 dimensions of the bibliographic structure as a frame of reference for the categorisation of bibliographic relationships, together with their subordinate types of equivalent relationships, focusing on common structural patterns revealed with in each entity itself
- Source
- Annals of Japan Society of Library Science. 40(1994) no.4, S.160-172
-
Anzai, H.; Yamamoto, T.; Ishizuka, H.: Experimental service of cataloguing database through WWW (1996)
0.02
0.024251807 = product of:
0.06467149 = sum of:
0.041327372 = weight(_text_:retrieval in 509) [ClassicSimilarity], result of:
0.041327372 = score(doc=509,freq=4.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.33085006 = fieldWeight in 509, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=509)
0.015619429 = weight(_text_:of in 509) [ClassicSimilarity], result of:
0.015619429 = score(doc=509,freq=8.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.24188137 = fieldWeight in 509, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0546875 = fieldNorm(doc=509)
0.007724685 = product of:
0.01544937 = sum of:
0.01544937 = weight(_text_:on in 509) [ClassicSimilarity], result of:
0.01544937 = score(doc=509,freq=2.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.17010231 = fieldWeight in 509, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0546875 = fieldNorm(doc=509)
0.5 = coord(1/2)
0.375 = coord(3/8)
- Abstract
- An information retrieval system for a cataloguing database through the WWW is developed, and experimentally served to Japan MARC and ULIS (Univeristy of Library and Information Science) OPAC data. Since Japanese words are not separated by obvious delimiters, ensuring the same segmentation between the query and the database is a problem. The present system solves the problem by using the multiple hash screening technique for processing both book titles and query strings, based on the same dictionary and using similar algorithms. Database management is handled by ADABAS, reducing management chores and and response time. The effectiveness of the multiple hash screening technique for a Japanese text based information system is examined, and the limitation of the Web's hypertext environment for a bibliographic information retrieval service is discussed
-
Hosono, K.: Information retrieval functions in digital libraries (1996)
0.02
0.018326376 = product of:
0.0733055 = sum of:
0.057846278 = weight(_text_:retrieval in 5722) [ClassicSimilarity], result of:
0.057846278 = score(doc=5722,freq=6.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.46309367 = fieldWeight in 5722, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=5722)
0.0154592255 = weight(_text_:of in 5722) [ClassicSimilarity], result of:
0.0154592255 = score(doc=5722,freq=6.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.23940048 = fieldWeight in 5722, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=5722)
0.25 = coord(2/8)
- Abstract
- Information retrieval functions in digital libraries have a different context from those which apply to searching commercial databases or OPACs. Different methods of browsing in this context are described, but the retrieval function should also include ordinary Boolean searching. Conversion of printed materials to electronic format using OCR can result in errors, which may cause problems for keyword searching. The n-gram method of approximate or fuzzy matching to reduce this problem is described
-
Agata, T.: ¬A measure for evaluating search engines on the World Wide Web : retrieval test with ESL (Expected Search Length) (1997)
0.02
0.015834665 = product of:
0.06333866 = sum of:
0.050096344 = weight(_text_:retrieval in 3892) [ClassicSimilarity], result of:
0.050096344 = score(doc=3892,freq=2.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.40105087 = fieldWeight in 3892, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.09375 = fieldNorm(doc=3892)
0.013242318 = product of:
0.026484637 = sum of:
0.026484637 = weight(_text_:on in 3892) [ClassicSimilarity], result of:
0.026484637 = score(doc=3892,freq=2.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.29160398 = fieldWeight in 3892, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.09375 = fieldNorm(doc=3892)
0.5 = coord(1/2)
0.25 = coord(2/8)
-
Ueda, S.: Online public access catalogues (OPACs) of university libraries in Japan (1995)
0.01
0.0144594535 = product of:
0.057837814 = sum of:
0.03422346 = weight(_text_:use in 3342) [ClassicSimilarity], result of:
0.03422346 = score(doc=3342,freq=2.0), product of:
0.12644777 = queryWeight, product of:
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.041294612 = queryNorm
0.27065295 = fieldWeight in 3342, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.0620887 = idf(docFreq=5623, maxDocs=44218)
0.0625 = fieldNorm(doc=3342)
0.023614356 = weight(_text_:of in 3342) [ClassicSimilarity], result of:
0.023614356 = score(doc=3342,freq=14.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.36569026 = fieldWeight in 3342, product of:
3.7416575 = tf(freq=14.0), with freq of:
14.0 = termFreq=14.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=3342)
0.25 = coord(2/8)
- Abstract
- Reports results of a postal survey of the use of OPACs in Japanese university libraries based upon an 84.9% return rate. These revealed that 60.4% of university libraries used OPACs, that most libraries were linked to the automated circulation system, but that only 6.5% had Internet connection
- Source
- Annals of Japan Society of Library Science. 41(1995) no.2, S.81-88
-
Watanabe, T.: ¬An experimental OPAC system using NDC8 to improve subject access (1994)
0.01
0.012214197 = product of:
0.048856787 = sum of:
0.033397563 = weight(_text_:retrieval in 403) [ClassicSimilarity], result of:
0.033397563 = score(doc=403,freq=2.0), product of:
0.124912694 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.041294612 = queryNorm
0.26736724 = fieldWeight in 403, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0625 = fieldNorm(doc=403)
0.0154592255 = weight(_text_:of in 403) [ClassicSimilarity], result of:
0.0154592255 = score(doc=403,freq=6.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.23940048 = fieldWeight in 403, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=403)
0.25 = coord(2/8)
- Abstract
- Description of an attempt to improve OPAC subject access at Kobe University Library using Nippon Decimal Classification, 8th ed. (NDC8). Examines the theoretical aspects of using a classification for subject searching, then explains the Kobe system. Using the NDC8 machine-readable data file, a database was created for the OPAC, incorporating class numbers and subject headings. Difficulties arise from subdivisions and the structure of NDC8 itself, but it is an important area for development
- Theme
- Klassifikationssysteme im Online-Retrieval
-
Mirorikawa, N.: Structures of classification systems : hierarchical and multidimensional (1996)
0.01
0.008694583 = product of:
0.03477833 = sum of:
0.027053645 = weight(_text_:of in 6583) [ClassicSimilarity], result of:
0.027053645 = score(doc=6583,freq=24.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.41895083 = fieldWeight in 6583, product of:
4.8989797 = tf(freq=24.0), with freq of:
24.0 = termFreq=24.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0546875 = fieldNorm(doc=6583)
0.007724685 = product of:
0.01544937 = sum of:
0.01544937 = weight(_text_:on in 6583) [ClassicSimilarity], result of:
0.01544937 = score(doc=6583,freq=2.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.17010231 = fieldWeight in 6583, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0546875 = fieldNorm(doc=6583)
0.5 = coord(1/2)
0.25 = coord(2/8)
- Abstract
- Considers classification systems from a structural point of view. Distinguishes between 2 kinds of methods of categorization of classification systems: the first categorized by structure, either hierarchical or multidimensional; and the second by style of expression, either enumerative or sythetic. Identifies 4 leading classification systems according to their structures: DDC, LCC, UDC and Colon Classification. Focuses on DDC referring to 2 interpretatives of its structure, one of which is hierarchical and the other is partially multidimensional. Also relates this to the matter of interpretation of the notation '0', interpreted in one instance as 'generalities', and in another as 'coordination sign'
- Source
- Annals of Japan Society of Library Science. 42(1996) no.2, S.99-110
-
Taniguchi, S.: Reevaluation of the 3-layered model in descriptive cataloguing (1997)
0.01
0.008406645 = product of:
0.03362658 = sum of:
0.025901893 = weight(_text_:of in 91) [ClassicSimilarity], result of:
0.025901893 = score(doc=91,freq=22.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.40111488 = fieldWeight in 91, product of:
4.690416 = tf(freq=22.0), with freq of:
22.0 = termFreq=22.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0546875 = fieldNorm(doc=91)
0.007724685 = product of:
0.01544937 = sum of:
0.01544937 = weight(_text_:on in 91) [ClassicSimilarity], result of:
0.01544937 = score(doc=91,freq=2.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.17010231 = fieldWeight in 91, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0546875 = fieldNorm(doc=91)
0.5 = coord(1/2)
0.25 = coord(2/8)
- Abstract
- Several years ago a conceptual framework was proposed that was designed to capture a bibliographic item by means of a structured approach and to present it in a structured manner in a bibliographic record: the 3-layered approach. Recently IFLA published the report of a study entitled 'Functional requirements for bibliographic records: draft report for worldwide review' for the purpose of a thorough reexamination of the question based on an analysis of user needs. The IFLA report attempted to capture the bibliographic universe through E-R analysis and to define entities, attributes of entities and relationships between them, all of which constitute the bibliographic universe. Compares the 3-layered model and the IFLA model culminating in a reevaluation of the 3-layered model
- Source
- Annals of Japan Society of Library Science. 43(1997) no.1, S.1-18
-
Matsubayashi, M.: ¬The German cataloging rules (RAK) : an introduction and annotated bibliography (1996)
0.01
0.008285422 = product of:
0.033141688 = sum of:
0.017850775 = weight(_text_:of in 497) [ClassicSimilarity], result of:
0.017850775 = score(doc=497,freq=8.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.27643585 = fieldWeight in 497, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=497)
0.015290912 = product of:
0.030581824 = sum of:
0.030581824 = weight(_text_:on in 497) [ClassicSimilarity], result of:
0.030581824 = score(doc=497,freq=6.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.33671528 = fieldWeight in 497, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0625 = fieldNorm(doc=497)
0.5 = coord(1/2)
0.25 = coord(2/8)
- Abstract
- Provides an explpanation of the German cataloguing rules (RAK) focusing on conceptual rules and describes their current situation and the likely nature of future revisions. The special characteristics of RAK are the clearly defined 'basic bibliographic concepts (Grundbegriffe)' as literary units and the related concepts of item (Vorlage), edition (Ausgabe) and work (Werk). RAK will be revised in the near future as RAK2 with a conceptual framework based on AACR2, clearly defined bibliographical concepts on literary units and compatibility with RAK-WB
-
Watanabe, T.: ¬A new tide in the user studies : focusing on C.C. Kuhlthau's cognitive user model (1997)
0.01
0.008253391 = product of:
0.033013564 = sum of:
0.022089208 = weight(_text_:of in 74) [ClassicSimilarity], result of:
0.022089208 = score(doc=74,freq=16.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.34207192 = fieldWeight in 74, product of:
4.0 = tf(freq=16.0), with freq of:
16.0 = termFreq=16.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0546875 = fieldNorm(doc=74)
0.010924355 = product of:
0.02184871 = sum of:
0.02184871 = weight(_text_:on in 74) [ClassicSimilarity], result of:
0.02184871 = score(doc=74,freq=4.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.24056101 = fieldWeight in 74, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0546875 = fieldNorm(doc=74)
0.5 = coord(1/2)
0.25 = coord(2/8)
- Abstract
- Reviews a series of studies conducted by C.C, Kuhlthau who investigated users' information seeking behaviour in libraries over a 10 year period. In her study she constructed and Information Search Process (ISP) Model which represents aspects of user activities as a whole including feelings, thoughts and actions or behaviour. Argues that, while the ISP model sheds new light on user studies, it has problems in the following areas: problem solving processes; the understanding of 'feelings'; and the method of investigating users' information seeking behaviour. Recommends that the ISP model be reconstructed from different perspectives and verified in areas other than libraries. This may lead to the development of a new model of information seeking
- Source
- Annals of Japan Society of Library Science. 43(1997) no.1, S.19-37
-
Ito, J.: Bibliographic structure : focusing on the idea of equivalence (1996)
0.01
0.008110688 = product of:
0.032442752 = sum of:
0.019957775 = weight(_text_:of in 491) [ClassicSimilarity], result of:
0.019957775 = score(doc=491,freq=10.0), product of:
0.06457475 = queryWeight, product of:
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.041294612 = queryNorm
0.3090647 = fieldWeight in 491, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
1.5637573 = idf(docFreq=25162, maxDocs=44218)
0.0625 = fieldNorm(doc=491)
0.012484977 = product of:
0.024969954 = sum of:
0.024969954 = weight(_text_:on in 491) [ClassicSimilarity], result of:
0.024969954 = score(doc=491,freq=4.0), product of:
0.090823986 = queryWeight, product of:
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.041294612 = queryNorm
0.27492687 = fieldWeight in 491, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.199415 = idf(docFreq=13325, maxDocs=44218)
0.0625 = fieldNorm(doc=491)
0.5 = coord(1/2)
0.25 = coord(2/8)
- Abstract
- Examines the conceptual structure of bibliographic relationships between a work and its related bibliographic entities in terms of the idea of equivalence as a mathematical concept. Bibliographic entities, such as the work, the text, the edition, and the printing, are also considered as functional foci resulting from data elements contributed by authors, translators, editors and publishers. Examines 4 types of dominant bibliographic relationships focusing on common structural patterns revealed within each entity
