-
Pu, H.-T.: Exploration of personalized information service for OPAC (1997)
0.01
0.011013014 = product of:
0.03854555 = sum of:
0.02136895 = product of:
0.053422377 = sum of:
0.025633242 = weight(_text_:retrieval in 1772) [ClassicSimilarity], result of:
0.025633242 = score(doc=1772,freq=2.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.23394634 = fieldWeight in 1772, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=1772)
0.027789133 = weight(_text_:system in 1772) [ClassicSimilarity], result of:
0.027789133 = score(doc=1772,freq=2.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.2435858 = fieldWeight in 1772, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.0546875 = fieldNorm(doc=1772)
0.4 = coord(2/5)
0.0171766 = product of:
0.0343532 = sum of:
0.0343532 = weight(_text_:22 in 1772) [ClassicSimilarity], result of:
0.0343532 = score(doc=1772,freq=2.0), product of:
0.12684377 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03622214 = queryNorm
0.2708308 = fieldWeight in 1772, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=1772)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- Library OPACs have long been the gateways between users and information. They present to users the achievements of library automation, and are the most widely available automated retrieval systems and the first that many user encounter. Current trends in OPAC design are toward a user oriented, individual information service which can meet the different needs of users with a variety of background and interests. Compared with the rather inactive, short term and general information service of conventional systems, this type of system focuses on active, long term and personalized service. Proposes a framework for the design of such an OPAC and discusses some recent developments in personalized information service
- Date
- 4. 8.1998 19:36:22
-
Yi, H.; Shubai, L.: Application of classification in information organization under the networking environment (1998)
0.01
0.007282694 = product of:
0.025489427 = sum of:
0.0058590267 = product of:
0.029295133 = sum of:
0.029295133 = weight(_text_:retrieval in 3236) [ClassicSimilarity], result of:
0.029295133 = score(doc=3236,freq=2.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.26736724 = fieldWeight in 3236, 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=3236)
0.2 = coord(1/5)
0.0196304 = product of:
0.0392608 = sum of:
0.0392608 = weight(_text_:22 in 3236) [ClassicSimilarity], result of:
0.0392608 = score(doc=3236,freq=2.0), product of:
0.12684377 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03622214 = queryNorm
0.30952093 = fieldWeight in 3236, 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=3236)
0.5 = coord(1/2)
0.2857143 = coord(2/7)
- Abstract
- Classification plays a very important role in the traditional organization and manual retrieval of documents. The advantages of classification are becoming evident again in the networked environment, in the areas of online browsing, organization of non text information, management of hypertext, and as a common language for the organization of information, which will promote the integration of classification schemes and thesauri
- Source
- Journal of the China Society for Scientific and Technical Information. 17(1998) no.1, S.19-22
-
Huang, M.-H.: ¬The evaluation of information retrieval systems (1997)
0.01
0.0068324776 = product of:
0.04782734 = sum of:
0.04782734 = product of:
0.11956835 = sum of:
0.063425824 = weight(_text_:retrieval in 1827) [ClassicSimilarity], result of:
0.063425824 = score(doc=1827,freq=6.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.5788671 = fieldWeight in 1827, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.078125 = fieldNorm(doc=1827)
0.056142528 = weight(_text_:system in 1827) [ClassicSimilarity], result of:
0.056142528 = score(doc=1827,freq=4.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.49211764 = fieldWeight in 1827, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.078125 = fieldNorm(doc=1827)
0.4 = coord(2/5)
0.14285715 = coord(1/7)
- Abstract
- Describes the current status of retrieval system evaluation and predicts its future development. discusses various performance measures and 'utility' concepts from a historical perspective. Also addresses the current status of search evaluation and dicusses the empirical findings of retrieval system evaluation
-
Jin, Z.; Yuan, C.: On the ambiguity of information retrieval for visualization (1998)
0.01
0.0051628156 = product of:
0.036139708 = sum of:
0.036139708 = product of:
0.09034927 = sum of:
0.058590267 = weight(_text_:retrieval in 3216) [ClassicSimilarity], result of:
0.058590267 = score(doc=3216,freq=8.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.5347345 = fieldWeight in 3216, 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=3216)
0.03175901 = weight(_text_:system in 3216) [ClassicSimilarity], result of:
0.03175901 = score(doc=3216,freq=2.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.27838376 = fieldWeight in 3216, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.0625 = fieldNorm(doc=3216)
0.4 = coord(2/5)
0.14285715 = coord(1/7)
- Abstract
- Addresses the issue of ambiguity of information retrieval for visualization in respect of distance and angle retrieval. Analyzes the cause of the ambiguitiy, its impact on information retrieval, and its resolution. Describes a system where the techniques described are realized
-
Tseng, Y.-H.: Keyword extraction techniques and relevance feedback (1997)
0.00
0.0041249837 = product of:
0.028874883 = sum of:
0.028874883 = product of:
0.07218721 = sum of:
0.044398077 = weight(_text_:retrieval in 1830) [ClassicSimilarity], result of:
0.044398077 = score(doc=1830,freq=6.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.40520695 = fieldWeight in 1830, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=1830)
0.027789133 = weight(_text_:system in 1830) [ClassicSimilarity], result of:
0.027789133 = score(doc=1830,freq=2.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.2435858 = fieldWeight in 1830, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.0546875 = fieldNorm(doc=1830)
0.4 = coord(2/5)
0.14285715 = coord(1/7)
- Abstract
- Automatic keyword extraction is an important and fundamental technology in an advanced information retrieval systems. Briefly compares several major keyword extraction methods, lists their advantages and disadvantages, and reports recent research progress in Taiwan. Also describes the application of a keyword extraction algorithm in an information retrieval system for relevance feedback. Preliminary analysis shows that the error rate of extracting relevant keywords is 18%, and that the precision rate is over 50%. The main disadvantage of this approach is that the extraction results depend on the retrieval results, which in turn depend on the data held by the database. Apart from collecting more data, this problem can be alleviated by the application of a thesaurus constructed by the same keyword extraction algorithm
-
Wu, C.-J.: Experiments on using the Dublin Core to reduce the retrieval error ratio (1998)
0.00
0.0041249837 = product of:
0.028874883 = sum of:
0.028874883 = product of:
0.07218721 = sum of:
0.044398077 = weight(_text_:retrieval in 5201) [ClassicSimilarity], result of:
0.044398077 = score(doc=5201,freq=6.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.40520695 = fieldWeight in 5201, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=5201)
0.027789133 = weight(_text_:system in 5201) [ClassicSimilarity], result of:
0.027789133 = score(doc=5201,freq=2.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.2435858 = fieldWeight in 5201, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.0546875 = fieldNorm(doc=5201)
0.4 = coord(2/5)
0.14285715 = coord(1/7)
- Abstract
- In order to test the power of metadata on information retrieval, an experiment was designed and conducted on a group of 7 graduate students using the Dublin Core as the cataloguing metadata. Results show that, on average, the retrieval error rate is only 2.9 per cent for the MES system (http://140.136.85.194), which utilizes the Dublin Core to describe the documents on the World Wide Web, in contrast to 20.7 per cent for the 7 famous search engines including HOTBOT, GAIS, LYCOS, EXCITE, INFOSEEK, YAHOO, and OCTOPUS. The very low error rate indicates that the users can use the information of the Dublin Core to decide whether to retrieve the documents or not
-
Wu, C.-J.: Metadata and future developments in cataloguing (1997)
0.00
0.003710458 = product of:
0.025973205 = sum of:
0.025973205 = product of:
0.06493301 = sum of:
0.025633242 = weight(_text_:retrieval in 2826) [ClassicSimilarity], result of:
0.025633242 = score(doc=2826,freq=2.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.23394634 = fieldWeight in 2826, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.0546875 = fieldNorm(doc=2826)
0.039299767 = weight(_text_:system in 2826) [ClassicSimilarity], result of:
0.039299767 = score(doc=2826,freq=4.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.34448233 = fieldWeight in 2826, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.0546875 = fieldNorm(doc=2826)
0.4 = coord(2/5)
0.14285715 = coord(1/7)
- Abstract
- Metadata is a resource which can assist the information retrieval of digital documents on the Internet. In designing a metadata system, it is necessary to consider the characteristics of digital documents, such as the variety of file formats, frequent format transformation and the difficulty of distinguishing between the different versions. Provides a brief analysis of some existing metadata formats, and introduces several pronciples for the future development of cataloguing on the Internet. Briefly describes the Metadata Experimental System (MES) currently under development, and located at the author's homepage
-
Huang, S.-l.: Data structure and searching strategy (1995)
0.00
0.0034888082 = product of:
0.024421657 = sum of:
0.024421657 = product of:
0.06105414 = sum of:
0.029295133 = weight(_text_:retrieval in 157) [ClassicSimilarity], result of:
0.029295133 = score(doc=157,freq=2.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.26736724 = fieldWeight in 157, 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=157)
0.03175901 = weight(_text_:system in 157) [ClassicSimilarity], result of:
0.03175901 = score(doc=157,freq=2.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.27838376 = fieldWeight in 157, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.0625 = fieldNorm(doc=157)
0.4 = coord(2/5)
0.14285715 = coord(1/7)
- Abstract
- Reports the results of a study of the effectiveness of online searching which used TULIPS, the National Taiwan University's OPAC system, to examine the relationship between data structure and information retrieval systems. Results show the efficiency of online searching can be improved by the use of indexes and by searching by subject
-
Tsai, B.-s.: Infomapping in information retrieval (1997)
0.00
0.003136654 = product of:
0.021956576 = sum of:
0.021956576 = product of:
0.054891437 = sum of:
0.03107218 = weight(_text_:retrieval in 2877) [ClassicSimilarity], result of:
0.03107218 = score(doc=2877,freq=4.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.2835858 = fieldWeight in 2877, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.046875 = fieldNorm(doc=2877)
0.023819257 = weight(_text_:system in 2877) [ClassicSimilarity], result of:
0.023819257 = score(doc=2877,freq=2.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.20878783 = fieldWeight in 2877, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.046875 = fieldNorm(doc=2877)
0.4 = coord(2/5)
0.14285715 = coord(1/7)
- Abstract
- Capability and capacity in handling the topology of a special subject information field has made infomapping techniques and systems instrumental in information searching, monitoring and navigation. Applying the technique to communication networks can reveal the intellectual relationships among junior and senior researchers in the field, and can also show the continuing popularity of a particular researcher's citation record over time. Reports the use of Java in making a cartoon series of chronological maps based on citation analysis on a special subject field (nutrition and dietetics). The map making methods, Java programming, and statistical analysis of the map data are presented, and the advantage and significance of constructing Java maps in enhancing information retrieval discussed. Further technical developments in applying VRML to link together a 3-D spatial indexing system and a 2-D HTML Web site are suggested
-
Lee, Y.-R.: ¬A study on the conditions of using OPAC access points and subject searching by users (1997)
0.00
0.0028043431 = product of:
0.0196304 = sum of:
0.0196304 = product of:
0.0392608 = sum of:
0.0392608 = weight(_text_:22 in 933) [ClassicSimilarity], result of:
0.0392608 = score(doc=933,freq=2.0), product of:
0.12684377 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03622214 = queryNorm
0.30952093 = fieldWeight in 933, 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=933)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Source
- Bulletin of library and information science. 1997, no.22, S.39-55
-
Lin, W.-Y.C.: ¬The concept and applications of faceted classifications (2006)
0.00
0.0028043431 = product of:
0.0196304 = sum of:
0.0196304 = product of:
0.0392608 = sum of:
0.0392608 = weight(_text_:22 in 5083) [ClassicSimilarity], result of:
0.0392608 = score(doc=5083,freq=2.0), product of:
0.12684377 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03622214 = queryNorm
0.30952093 = fieldWeight in 5083, 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=5083)
0.5 = coord(1/2)
0.14285715 = coord(1/7)
- Date
- 27. 5.2007 22:19:35
-
Huang, M.-h.: Five fundamental concepts in information retrieval (1996)
0.00
0.0018121665 = product of:
0.012685165 = sum of:
0.012685165 = product of:
0.063425824 = sum of:
0.063425824 = weight(_text_:retrieval in 7689) [ClassicSimilarity], result of:
0.063425824 = score(doc=7689,freq=6.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.5788671 = fieldWeight in 7689, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.078125 = fieldNorm(doc=7689)
0.2 = coord(1/5)
0.14285715 = coord(1/7)
- Abstract
- Discusses the 5 fundamental concepts of information retrieval addressed by Patrick Wilson - information, aboutness, relevance, need and use. Although it is impossible to reach consensus definitions for these concepts it can be helpful for future discussions in information retrieval researches
-
Shuiqing, H.; Hanqing, H.: ¬The realizing of Chinese PRECIS on computer (1991)
0.00
0.0015879505 = product of:
0.011115653 = sum of:
0.011115653 = product of:
0.055578265 = sum of:
0.055578265 = weight(_text_:system in 2129) [ClassicSimilarity], result of:
0.055578265 = score(doc=2129,freq=2.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.4871716 = fieldWeight in 2129, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.109375 = fieldNorm(doc=2129)
0.2 = coord(1/5)
0.14285715 = coord(1/7)
- Theme
- Preserved Context Index System (PRECIS)
-
Longshu, L.; Xia, Z.: On an aproximate fuzzy information retrieval agent (1998)
0.00
0.0014497333 = product of:
0.010148132 = sum of:
0.010148132 = product of:
0.05074066 = sum of:
0.05074066 = weight(_text_:retrieval in 3294) [ClassicSimilarity], result of:
0.05074066 = score(doc=3294,freq=6.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.46309367 = fieldWeight in 3294, 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=3294)
0.2 = coord(1/5)
0.14285715 = coord(1/7)
- Abstract
- Discusses online approximate information retrieval based on fuzzy mathematics. Defines fuzzy semantics. Presents an approximate fuzzy matching algorithm and an algorithm for a fuzzy word indexing agent for approximate retrieval. Also presents a case study demonstrating approximate fuzzy matching
-
Chen, C.C.; Chen, H.H.; Chen, K.H.: ¬The design of the XML/Metadata management system (2000)
0.00
0.0013611005 = product of:
0.009527703 = sum of:
0.009527703 = product of:
0.047638513 = sum of:
0.047638513 = weight(_text_:system in 4633) [ClassicSimilarity], result of:
0.047638513 = score(doc=4633,freq=2.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.41757566 = fieldWeight in 4633, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.09375 = fieldNorm(doc=4633)
0.2 = coord(1/5)
0.14285715 = coord(1/7)
-
Tseng, Y.H.; Lin, Y.I.: Evaluation of fuzzy search, term suggestion, and term relevance feedback in an OPAC system (1998)
0.00
0.0013611005 = product of:
0.009527703 = sum of:
0.009527703 = product of:
0.047638513 = sum of:
0.047638513 = weight(_text_:system in 6430) [ClassicSimilarity], result of:
0.047638513 = score(doc=6430,freq=2.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.41757566 = fieldWeight in 6430, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.09375 = fieldNorm(doc=6430)
0.2 = coord(1/5)
0.14285715 = coord(1/7)
-
Yongcheng, W.; Xiaoming, G.; Lixia, W.: Automatic indexing on subject of Chinese text (1998)
0.00
0.0011342503 = product of:
0.007939752 = sum of:
0.007939752 = product of:
0.03969876 = sum of:
0.03969876 = weight(_text_:system in 3241) [ClassicSimilarity], result of:
0.03969876 = score(doc=3241,freq=2.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.3479797 = fieldWeight in 3241, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.078125 = fieldNorm(doc=3241)
0.2 = coord(1/5)
0.14285715 = coord(1/7)
- Abstract
- Outlines the underlying ideas, the basic algorithm and structure of CSAIS 2.1, an automatic indexing system for the subjects of Chinese documents, developed by the authors in 1993
-
Huang, S.-L.: ¬The conceptual model of computer aided Chinese classification system (1997)
0.00
9.624433E-4 = product of:
0.0067371028 = sum of:
0.0067371028 = product of:
0.033685513 = sum of:
0.033685513 = weight(_text_:system in 1807) [ClassicSimilarity], result of:
0.033685513 = score(doc=1807,freq=4.0), product of:
0.11408355 = queryWeight, product of:
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.03622214 = queryNorm
0.29527056 = fieldWeight in 1807, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.1495528 = idf(docFreq=5152, maxDocs=44218)
0.046875 = fieldNorm(doc=1807)
0.2 = coord(1/5)
0.14285715 = coord(1/7)
- Abstract
- In a prototype model of a computer aided Chinese classification system, 4 different modules were included: the keyword searching type, user's predomination type, expert wizard type and versatile type. These 4 modules work in different ways whilst sharing the same concept. The keyword searching type finds the most suitable category by scanning the keywords of all categories in a database; it is useful for entrance level staff. The user's predomination type allows the user to key in the proper category to size down the number of returning data; the user then picks the best category by browsing the built in keywords. This module is suitable for professional librarians. The expert wizard type actively leads the user to choose the best category one by one. The versatile type is a mixture of the other 3 types
-
Hsueh, L.-K.: ¬The application of PRECIS in indexing Chinese documents : an experimental study (1993)
0.00
8.3700387E-4 = product of:
0.0058590267 = sum of:
0.0058590267 = product of:
0.029295133 = sum of:
0.029295133 = weight(_text_:retrieval in 6706) [ClassicSimilarity], result of:
0.029295133 = score(doc=6706,freq=2.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.26736724 = fieldWeight in 6706, 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=6706)
0.2 = coord(1/5)
0.14285715 = coord(1/7)
- Abstract
- Describes a study aimed at exploring possible applications for PRECIS for indexing Chinese documents, generating Chinses subject indexes, and for facilitating online information retrieval. A random sample of 498 Chinese subject indexing strings was taken from the Index to Chinese Periodical Literature and a comprehensive test of the PRECIS role operators was carried out. 18 problem areas were isolated and grouped into 8 categories. These problems stemmed mainly from syntactic differences between English and Chinese. Suggests modifications of and additions to the existing role operators and the accompanying software to overcome these problems
-
Yiqun, W.; Zhonghui, Z.; Li, Z.: Experimental study of machine factors and cognitive abilities of users (1998)
0.00
8.3700387E-4 = product of:
0.0058590267 = sum of:
0.0058590267 = product of:
0.029295133 = sum of:
0.029295133 = weight(_text_:retrieval in 5225) [ClassicSimilarity], result of:
0.029295133 = score(doc=5225,freq=2.0), product of:
0.109568894 = queryWeight, product of:
3.024915 = idf(docFreq=5836, maxDocs=44218)
0.03622214 = queryNorm
0.26736724 = fieldWeight in 5225, 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=5225)
0.2 = coord(1/5)
0.14285715 = coord(1/7)
- Abstract
- Describes 3 experiments undertaken to research how machine factors influence the cognitive abilities of users. The experiments dealt with presentation programs of retrieval results and user selectivity, thesaurus construction and accuracy of the subject words ascertained by the user, and menu layout and time taken by the user. Discusses findings and the satisfaction of users with present databases
