-
Duval, B.K.; Main, L.: Searching on the Net : general overview (1996)
0.16
0.16340889 = product of:
0.24511333 = sum of:
0.075914174 = weight(_text_:search in 7268) [ClassicSimilarity], result of:
0.075914174 = score(doc=7268,freq=4.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.43445963 = fieldWeight in 7268, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.0625 = fieldNorm(doc=7268)
0.16919915 = sum of:
0.11470887 = weight(_text_:engines in 7268) [ClassicSimilarity], result of:
0.11470887 = score(doc=7268,freq=2.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.44908544 = fieldWeight in 7268, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0625 = fieldNorm(doc=7268)
0.054490287 = weight(_text_:22 in 7268) [ClassicSimilarity], result of:
0.054490287 = score(doc=7268,freq=2.0), product of:
0.17604718 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05027291 = queryNorm
0.30952093 = fieldWeight in 7268, 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=7268)
0.6666667 = coord(2/3)
- Abstract
- First of a 3 part series discussing how to access and use Web search engines on the Internet. Distinguishes between FTP sites, Gopher sites, Usenet News sites and Web sites. Considers subject searching versus keyword; how to improve search strategies and success rates; bookmarks; Yahoo!, Lycos; InfoSeek; Magellan; Excite; Inktomi; HotBot and AltaVista
- Date
- 6. 3.1997 16:22:15
-
Quint, B.; Liddy, E.: Search engine designer for tomorrow : interview with TextWise's Elizabeth Liddy (1998)
0.16
0.16340889 = product of:
0.24511333 = sum of:
0.075914174 = weight(_text_:search in 2288) [ClassicSimilarity], result of:
0.075914174 = score(doc=2288,freq=4.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.43445963 = fieldWeight in 2288, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.0625 = fieldNorm(doc=2288)
0.16919915 = sum of:
0.11470887 = weight(_text_:engines in 2288) [ClassicSimilarity], result of:
0.11470887 = score(doc=2288,freq=2.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.44908544 = fieldWeight in 2288, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0625 = fieldNorm(doc=2288)
0.054490287 = weight(_text_:22 in 2288) [ClassicSimilarity], result of:
0.054490287 = score(doc=2288,freq=2.0), product of:
0.17604718 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05027291 = queryNorm
0.30952093 = fieldWeight in 2288, 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=2288)
0.6666667 = coord(2/3)
- Abstract
- Presents an interview with E. Liddy, president and CEO of Textwise, a US research and development company designing advanced natural language search engines for government and commercial clients. Describes the company's current products and projects for 1998, and considers how these new advanced information analysis systems will affect the role of information professionals
- Source
- Searcher. 6(1998) no.3, S.19-22
-
Brandt, D.S.: Relevancy and searching the Internet (1996)
0.16
0.1602636 = product of:
0.24039538 = sum of:
0.11621937 = weight(_text_:search in 5665) [ClassicSimilarity], result of:
0.11621937 = score(doc=5665,freq=6.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.66512775 = fieldWeight in 5665, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.078125 = fieldNorm(doc=5665)
0.12417601 = product of:
0.24835202 = sum of:
0.24835202 = weight(_text_:engines in 5665) [ClassicSimilarity], result of:
0.24835202 = score(doc=5665,freq=6.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.9722986 = fieldWeight in 5665, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.078125 = fieldNorm(doc=5665)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Considers issues of relevancy when searching the Internet. Compares the value and trade offs involved when using subject-oriented and comprehensive resources and search engines. Discusses relevance or results ranking used by a number of Internet search engines
- Content
- Beitrag zu den verschiedenen search engines des Internet
-
Overton, R.: Search engines get faster and faster, but not always better (1996)
0.16
0.1602636 = product of:
0.24039538 = sum of:
0.11621937 = weight(_text_:search in 5669) [ClassicSimilarity], result of:
0.11621937 = score(doc=5669,freq=6.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.66512775 = fieldWeight in 5669, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.078125 = fieldNorm(doc=5669)
0.12417601 = product of:
0.24835202 = sum of:
0.24835202 = weight(_text_:engines in 5669) [ClassicSimilarity], result of:
0.24835202 = score(doc=5669,freq=6.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.9722986 = fieldWeight in 5669, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.078125 = fieldNorm(doc=5669)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Good article listing the pros and cons of the most popular search engines. Grades search engines and recommends thoch ones to use and not to use. Also provides good table of features
-
Edwards, D.H.: Evaluating Internet search tools : a librarian's guide (1997)
0.16
0.15705857 = product of:
0.23558784 = sum of:
0.13419856 = weight(_text_:search in 1455) [ClassicSimilarity], result of:
0.13419856 = score(doc=1455,freq=8.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.7680234 = fieldWeight in 1455, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.078125 = fieldNorm(doc=1455)
0.10138928 = product of:
0.20277856 = sum of:
0.20277856 = weight(_text_:engines in 1455) [ClassicSimilarity], result of:
0.20277856 = score(doc=1455,freq=4.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.79387844 = fieldWeight in 1455, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.078125 = fieldNorm(doc=1455)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Addresses features of Internet search tools and how to evaluate them. Explains the types of tools available (subject guides, search engines and meta search engines) and how they work. Covers common features, unique features, scope and currency
-
Sullivan D.: ¬The webmaster's guide to search engines and directories (1996)
0.16
0.1570256 = product of:
0.2355384 = sum of:
0.113871254 = weight(_text_:search in 5672) [ClassicSimilarity], result of:
0.113871254 = score(doc=5672,freq=4.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6516894 = fieldWeight in 5672, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.09375 = fieldNorm(doc=5672)
0.12166713 = product of:
0.24333426 = sum of:
0.24333426 = weight(_text_:engines in 5672) [ClassicSimilarity], result of:
0.24333426 = score(doc=5672,freq=4.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.9526541 = fieldWeight in 5672, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.09375 = fieldNorm(doc=5672)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Very thourough report on search engines. Has several sections including What's new, Tips for success, Frequently Asked Questions and an good list of features in a table format
-
Machovec, G.S.: World Wide Web search engines : Altavista and Yahoo (1996)
0.16
0.1570256 = product of:
0.2355384 = sum of:
0.113871254 = weight(_text_:search in 5679) [ClassicSimilarity], result of:
0.113871254 = score(doc=5679,freq=4.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6516894 = fieldWeight in 5679, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.09375 = fieldNorm(doc=5679)
0.12166713 = product of:
0.24333426 = sum of:
0.24333426 = weight(_text_:engines in 5679) [ClassicSimilarity], result of:
0.24333426 = score(doc=5679,freq=4.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.9526541 = fieldWeight in 5679, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.09375 = fieldNorm(doc=5679)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Reviews 2 WWW search engines: AltaVista and Yahoo. Gives a background to the development of the services and explains how they work
-
Piggott, S.: Meta-links : major search engines on the Internet (1996)
0.16
0.1570256 = product of:
0.2355384 = sum of:
0.113871254 = weight(_text_:search in 5784) [ClassicSimilarity], result of:
0.113871254 = score(doc=5784,freq=4.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6516894 = fieldWeight in 5784, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.09375 = fieldNorm(doc=5784)
0.12166713 = product of:
0.24333426 = sum of:
0.24333426 = weight(_text_:engines in 5784) [ClassicSimilarity], result of:
0.24333426 = score(doc=5784,freq=4.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.9526541 = fieldWeight in 5784, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.09375 = fieldNorm(doc=5784)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Lists 13 commercial search engines operating on the Internet with brief notes on their characteristics and facilities
-
Peterson, R.E.: Eight Internet search engines compared (1996)
0.16
0.1570256 = product of:
0.2355384 = sum of:
0.113871254 = weight(_text_:search in 2328) [ClassicSimilarity], result of:
0.113871254 = score(doc=2328,freq=4.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6516894 = fieldWeight in 2328, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.09375 = fieldNorm(doc=2328)
0.12166713 = product of:
0.24333426 = sum of:
0.24333426 = weight(_text_:engines in 2328) [ClassicSimilarity], result of:
0.24333426 = score(doc=2328,freq=4.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.9526541 = fieldWeight in 2328, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.09375 = fieldNorm(doc=2328)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Beitrag über robotergestützte search engines des Internet
-
Tomaiuolo, N.G.; Packer, J.G.: ¬An analysis of Internet search engines : assessment of over 200 search queries (1996)
0.15
0.15388535 = product of:
0.23082802 = sum of:
0.1314872 = weight(_text_:search in 5816) [ClassicSimilarity], result of:
0.1314872 = score(doc=5816,freq=12.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.75250614 = fieldWeight in 5816, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.0625 = fieldNorm(doc=5816)
0.099340804 = product of:
0.19868161 = sum of:
0.19868161 = weight(_text_:engines in 5816) [ClassicSimilarity], result of:
0.19868161 = score(doc=5816,freq=6.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.7778389 = fieldWeight in 5816, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0625 = fieldNorm(doc=5816)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Reports the results of searches on 200 topics carried out on 5 Internet search engines (Magellan, Point, Lycos, InfoSeek and AltaVista). Describes the methodology followed and the results of the study. Gives a chart showing 30 of the search queries, with the performance of each search engine. Indicates some of the limitations of the search engines
-
Lawrence, S.; Giles, C.L.: Inquirus, the NECI meta search engine (1998)
0.15
0.15293524 = product of:
0.22940284 = sum of:
0.08135357 = weight(_text_:search in 3604) [ClassicSimilarity], result of:
0.08135357 = score(doc=3604,freq=6.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.46558946 = fieldWeight in 3604, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.0546875 = fieldNorm(doc=3604)
0.14804927 = sum of:
0.10037026 = weight(_text_:engines in 3604) [ClassicSimilarity], result of:
0.10037026 = score(doc=3604,freq=2.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.39294976 = fieldWeight in 3604, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0546875 = fieldNorm(doc=3604)
0.047679 = weight(_text_:22 in 3604) [ClassicSimilarity], result of:
0.047679 = score(doc=3604,freq=2.0), product of:
0.17604718 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05027291 = queryNorm
0.2708308 = fieldWeight in 3604, 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=3604)
0.6666667 = coord(2/3)
- Abstract
- Presents Inquirus, a WWW meta search engine which works by downloading and analysing the individual documents. It makes improvements over existing search engines in a number of areas: more useful document summaries incorporating query term context, identification of both pages which no longer exist and pages which no longer contain the query terms, advanced detection of duplicate pages, improved document ranking using proximity information, dramatically improved precision for certain queries by using specific expressive forms, and quick jump links and highlighting when viewing the full document
- Date
- 1. 8.1996 22:08:06
-
Balas, J.: ¬The importance of mastering search engines (1998)
0.15
0.15151244 = product of:
0.22726867 = sum of:
0.1150513 = weight(_text_:search in 3999) [ClassicSimilarity], result of:
0.1150513 = score(doc=3999,freq=12.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.65844285 = fieldWeight in 3999, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.0546875 = fieldNorm(doc=3999)
0.112217374 = product of:
0.22443475 = sum of:
0.22443475 = weight(_text_:engines in 3999) [ClassicSimilarity], result of:
0.22443475 = score(doc=3999,freq=10.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.87866247 = fieldWeight in 3999, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0546875 = fieldNorm(doc=3999)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- To use the electronic resources of the Internet effectively, reference librarians must learn to use the various search engines to their best advantage. Describes the following Web sites which provide help for librarians in improving their Internet searching skills: the Bergen County Cooperative Library System which has links to some well-known directories and search engines; the Spider's Apprentice, which provides ratings and in-depth analysis of search engines, a FAQ document useful to the beginning searcher, and an online discussion forum; ZDNet's WebSearchUser which has feature articles, reviews and tutorials; and Search Engine Watch which reports new developments in search engines. URLs for these and other resources are given
-
Mukherjea, S.; Hirata, K.; Hara, Y.: Towards a multimedia World-Wide Web information retrieval engine (1997)
0.15
0.15034318 = product of:
0.22551477 = sum of:
0.0986154 = weight(_text_:search in 2678) [ClassicSimilarity], result of:
0.0986154 = score(doc=2678,freq=12.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.5643796 = fieldWeight in 2678, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.046875 = fieldNorm(doc=2678)
0.12689936 = sum of:
0.08603165 = weight(_text_:engines in 2678) [ClassicSimilarity], result of:
0.08603165 = score(doc=2678,freq=2.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.33681408 = fieldWeight in 2678, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.046875 = fieldNorm(doc=2678)
0.040867712 = weight(_text_:22 in 2678) [ClassicSimilarity], result of:
0.040867712 = score(doc=2678,freq=2.0), product of:
0.17604718 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.05027291 = queryNorm
0.23214069 = fieldWeight in 2678, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2678)
0.6666667 = coord(2/3)
- Abstract
- Describes a search engine that integrate text and image search. 1 or more Web site can be indexed for both textual and image information, allowing the user to search based on keywords or images or both. Another problem with the current search engines is that they show the results as pages of scrolled lists; this is not very user-friendly. The search engine allows the user to visualise to results in various ways. Explains the indexing and searching techniques of the search engine and highlights several features of the querying interface to make the retrieval process more efficient. Use examples to show the usefulness of the technology
- Date
- 1. 8.1996 22:08:06
-
Sullivan D.: ¬The major search engines (1998)
0.15
0.14804515 = product of:
0.22206771 = sum of:
0.10735885 = weight(_text_:search in 5731) [ClassicSimilarity], result of:
0.10735885 = score(doc=5731,freq=2.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6144187 = fieldWeight in 5731, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.125 = fieldNorm(doc=5731)
0.11470887 = product of:
0.22941774 = sum of:
0.22941774 = weight(_text_:engines in 5731) [ClassicSimilarity], result of:
0.22941774 = score(doc=5731,freq=2.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.8981709 = fieldWeight in 5731, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.125 = fieldNorm(doc=5731)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
-
Sullivan D.: How search engines rank web pages (1998)
0.15
0.14804515 = product of:
0.22206771 = sum of:
0.10735885 = weight(_text_:search in 5808) [ClassicSimilarity], result of:
0.10735885 = score(doc=5808,freq=2.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6144187 = fieldWeight in 5808, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.125 = fieldNorm(doc=5808)
0.11470887 = product of:
0.22941774 = sum of:
0.22941774 = weight(_text_:engines in 5808) [ClassicSimilarity], result of:
0.22941774 = score(doc=5808,freq=2.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.8981709 = fieldWeight in 5808, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.125 = fieldNorm(doc=5808)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
-
Sullivan D.: How search engines work (1998)
0.15
0.14804515 = product of:
0.22206771 = sum of:
0.10735885 = weight(_text_:search in 6318) [ClassicSimilarity], result of:
0.10735885 = score(doc=6318,freq=2.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6144187 = fieldWeight in 6318, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.125 = fieldNorm(doc=6318)
0.11470887 = product of:
0.22941774 = sum of:
0.22941774 = weight(_text_:engines in 6318) [ClassicSimilarity], result of:
0.22941774 = score(doc=6318,freq=2.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.8981709 = fieldWeight in 6318, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.125 = fieldNorm(doc=6318)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
-
Barlow, L.: ¬The spider's apprentice : how to use Web search engines (1997)
0.15
0.14804515 = product of:
0.22206771 = sum of:
0.10735885 = weight(_text_:search in 7534) [ClassicSimilarity], result of:
0.10735885 = score(doc=7534,freq=2.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6144187 = fieldWeight in 7534, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.125 = fieldNorm(doc=7534)
0.11470887 = product of:
0.22941774 = sum of:
0.22941774 = weight(_text_:engines in 7534) [ClassicSimilarity], result of:
0.22941774 = score(doc=7534,freq=2.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.8981709 = fieldWeight in 7534, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.125 = fieldNorm(doc=7534)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
-
Sullivan D.: Search engines features chart (1998)
0.15
0.14804515 = product of:
0.22206771 = sum of:
0.10735885 = weight(_text_:search in 6615) [ClassicSimilarity], result of:
0.10735885 = score(doc=6615,freq=2.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6144187 = fieldWeight in 6615, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.125 = fieldNorm(doc=6615)
0.11470887 = product of:
0.22941774 = sum of:
0.22941774 = weight(_text_:engines in 6615) [ClassicSimilarity], result of:
0.22941774 = score(doc=6615,freq=2.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.8981709 = fieldWeight in 6615, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.125 = fieldNorm(doc=6615)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
-
Clarke, S.J.; Willett, P.: Estimating the recall performance of Web search engines (1997)
0.15
0.14804515 = product of:
0.22206771 = sum of:
0.10735885 = weight(_text_:search in 760) [ClassicSimilarity], result of:
0.10735885 = score(doc=760,freq=8.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6144187 = fieldWeight in 760, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.0625 = fieldNorm(doc=760)
0.11470887 = product of:
0.22941774 = sum of:
0.22941774 = weight(_text_:engines in 760) [ClassicSimilarity], result of:
0.22941774 = score(doc=760,freq=8.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.8981709 = fieldWeight in 760, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.0625 = fieldNorm(doc=760)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
- Abstract
- Reports a comparison of the retrieval effectiveness of the AltaVista, Excite and Lycos Web search engines. Describes a method for comparing the recall of the 3 sets of searches, despite the fact that they are carried out on non identical sets of Web pages. It is thus possible, unlike previous comparative studies of Web search engines, to consider both recall and precision when evaluating the effectiveness of search engines
-
Hahn, T.B.: Text retrieval online : historical persepctive on Web search engines (1998)
0.15
0.14804515 = product of:
0.22206771 = sum of:
0.10735885 = weight(_text_:search in 1313) [ClassicSimilarity], result of:
0.10735885 = score(doc=1313,freq=2.0), product of:
0.1747324 = queryWeight, product of:
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.05027291 = queryNorm
0.6144187 = fieldWeight in 1313, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.475677 = idf(docFreq=3718, maxDocs=44218)
0.125 = fieldNorm(doc=1313)
0.11470887 = product of:
0.22941774 = sum of:
0.22941774 = weight(_text_:engines in 1313) [ClassicSimilarity], result of:
0.22941774 = score(doc=1313,freq=2.0), product of:
0.25542772 = queryWeight, product of:
5.080822 = idf(docFreq=746, maxDocs=44218)
0.05027291 = queryNorm
0.8981709 = fieldWeight in 1313, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.080822 = idf(docFreq=746, maxDocs=44218)
0.125 = fieldNorm(doc=1313)
0.5 = coord(1/2)
0.6666667 = coord(2/3)
