-
Li, L.; Shang, Y.; Zhang, W.: Improvement of HITS-based algorithms on Web documents
0.44
0.43778247 = product of:
0.87556493 = sum of:
0.048722174 = product of:
0.14616652 = sum of:
0.14616652 = weight(_text_:3a in 2514) [ClassicSimilarity], result of:
0.14616652 = score(doc=2514,freq=2.0), product of:
0.26007444 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.03067635 = queryNorm
0.56201804 = fieldWeight in 2514, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.33333334 = coord(1/3)
0.20671068 = weight(_text_:2f in 2514) [ClassicSimilarity], result of:
0.20671068 = score(doc=2514,freq=4.0), product of:
0.26007444 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.03067635 = queryNorm
0.7948135 = fieldWeight in 2514, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.20671068 = weight(_text_:2f in 2514) [ClassicSimilarity], result of:
0.20671068 = score(doc=2514,freq=4.0), product of:
0.26007444 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.03067635 = queryNorm
0.7948135 = fieldWeight in 2514, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.20671068 = weight(_text_:2f in 2514) [ClassicSimilarity], result of:
0.20671068 = score(doc=2514,freq=4.0), product of:
0.26007444 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.03067635 = queryNorm
0.7948135 = fieldWeight in 2514, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.20671068 = weight(_text_:2f in 2514) [ClassicSimilarity], result of:
0.20671068 = score(doc=2514,freq=4.0), product of:
0.26007444 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.03067635 = queryNorm
0.7948135 = fieldWeight in 2514, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
8.478011 = idf(docFreq=24, maxDocs=44218)
0.046875 = fieldNorm(doc=2514)
0.5 = coord(5/10)
- Content
- Vgl.: http%3A%2F%2Fdelab.csd.auth.gr%2F~dimitris%2Fcourses%2Fir_spring06%2Fpage_rank_computing%2Fp527-li.pdf. Vgl. auch: http://www2002.org/CDROM/refereed/643/.
-
Lewandowski, D.: Query understanding (2011)
0.01
0.006352222 = product of:
0.06352222 = sum of:
0.06352222 = product of:
0.09528333 = sum of:
0.062033553 = weight(_text_:2010 in 344) [ClassicSimilarity], result of:
0.062033553 = score(doc=344,freq=2.0), product of:
0.14672957 = queryWeight, product of:
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.03067635 = queryNorm
0.4227747 = fieldWeight in 344, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.0625 = fieldNorm(doc=344)
0.033249777 = weight(_text_:22 in 344) [ClassicSimilarity], result of:
0.033249777 = score(doc=344,freq=2.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.30952093 = fieldWeight in 344, 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=344)
0.6666667 = coord(2/3)
0.1 = coord(1/10)
- Abstract
- In diesem Kapitel wird beschrieben, wie Suchmaschinen Suchanfragen interpretieren können, um letztendlich den Nutzern besser auf ihren Kontext zugeschnittene Ergebnisse liefern zu können. Nach einer Diskussion der Notwendigkeit und der Einsatzmöglichkeiten des Query Understanding wird aufgezeigt, auf welcher Datenbasis und an welchen Ansatzpunkten Suchanfragen interpretiert werden können. Dann erfolgt eine Erläuterung der Interpretationsmöglichkeiten anhand der Suchanfragen-Facetten von Calderon-Benavides et al. (2010), welcher sich eine Diskussion der Verfahren zur Ermittlung der Facetten anschließt.
- Date
- 18. 9.2018 18:22:18
-
Fluhr, C.: Crosslingual access to photo databases (2012)
0.01
0.0058928686 = product of:
0.029464342 = sum of:
0.021151898 = product of:
0.06345569 = sum of:
0.06345569 = weight(_text_:problem in 93) [ClassicSimilarity], result of:
0.06345569 = score(doc=93,freq=6.0), product of:
0.1302053 = queryWeight, product of:
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03067635 = queryNorm
0.48735106 = fieldWeight in 93, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.046875 = fieldNorm(doc=93)
0.33333334 = coord(1/3)
0.008312443 = product of:
0.02493733 = sum of:
0.02493733 = weight(_text_:22 in 93) [ClassicSimilarity], result of:
0.02493733 = score(doc=93,freq=2.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.23214069 = fieldWeight in 93, 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=93)
0.33333334 = coord(1/3)
0.2 = coord(2/10)
- Abstract
- This paper is about search of photos in photo databases of agencies which sell photos over the Internet. The problem is far from the behavior of photo databases managed by librarians and also far from the corpora generally used for research purposes. The descriptions use mainly single words and it is well known that it is not the best way to have a good search. This increases the problem of semantic ambiguity. This problem of semantic ambiguity is crucial for cross-language querying. On the other hand, users are not aware of documentation techniques and use generally very simple queries but want to get precise answers. This paper gives the experience gained in a 3 year use (2006-2008) of a cross-language access to several of the main international commercial photo databases. The languages used were French, English, and German.
- Date
- 17. 4.2012 14:25:22
-
Bressan, M.; Peserico, E.: Choose the damping, choose the ranking? (2010)
0.00
0.0048977295 = product of:
0.024488647 = sum of:
0.008141369 = product of:
0.024424106 = sum of:
0.024424106 = weight(_text_:problem in 2563) [ClassicSimilarity], result of:
0.024424106 = score(doc=2563,freq=2.0), product of:
0.1302053 = queryWeight, product of:
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03067635 = queryNorm
0.1875815 = fieldWeight in 2563, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03125 = fieldNorm(doc=2563)
0.33333334 = coord(1/3)
0.016347278 = product of:
0.04904183 = sum of:
0.04904183 = weight(_text_:2010 in 2563) [ClassicSimilarity], result of:
0.04904183 = score(doc=2563,freq=5.0), product of:
0.14672957 = queryWeight, product of:
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.03067635 = queryNorm
0.33423275 = fieldWeight in 2563, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.03125 = fieldNorm(doc=2563)
0.33333334 = coord(1/3)
0.2 = coord(2/10)
- Abstract
- To what extent can changes in PageRank's damping factor affect node ranking? We prove that, at least on some graphs, the top k nodes assume all possible k! orderings as the damping factor varies, even if it varies within an arbitrarily small interval (e.g. [0.84999,0.85001][0.84999,0.85001]). Thus, the rank of a node for a given (finite set of discrete) damping factor(s) provides very little information about the rank of that node as the damping factor varies over a continuous interval. We bypass this problem introducing lineage analysis and proving that there is a simple condition, with a "natural" interpretation independent of PageRank, that allows one to verify "in one shot" if a node outperforms another simultaneously for all damping factors and all damping variables (informally, time variant damping factors). The novel notions of strong rank and weak rank of a node provide a measure of the fuzziness of the rank of that node, of the objective orderability of a graph's nodes, and of the quality of results returned by different ranking algorithms based on the random surfer model. We deploy our analytical tools on a 41M node snapshot of the .it Web domain and on a 0.7M node snapshot of the CiteSeer citation graph. Among other findings, we show that rank is indeed relatively stable in both graphs; that "classic" PageRank (d=0.85) marginally outperforms Weighted In-degree (d->0), mainly due to its ability to ferret out "niche" items; and that, for both the Web and CiteSeer, the ideal damping factor appears to be 0.8-0.9 to obtain those items of high importance to at least one (model of randomly surfing) user, but only 0.5-0.6 to obtain those items important to every (model of randomly surfing) user.
- Source
- Journal of discrete algorithms. 8(2010) no.2, S.199-213
- Year
- 2010
-
Marchiori, M.: ¬The quest for correct information on the Web : hyper search engines (1997)
0.00
0.0047890493 = product of:
0.023945246 = sum of:
0.014247394 = product of:
0.04274218 = sum of:
0.04274218 = weight(_text_:problem in 7453) [ClassicSimilarity], result of:
0.04274218 = score(doc=7453,freq=2.0), product of:
0.1302053 = queryWeight, product of:
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03067635 = queryNorm
0.3282676 = fieldWeight in 7453, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.0546875 = fieldNorm(doc=7453)
0.33333334 = coord(1/3)
0.009697851 = product of:
0.029093552 = sum of:
0.029093552 = weight(_text_:22 in 7453) [ClassicSimilarity], result of:
0.029093552 = score(doc=7453,freq=2.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.2708308 = fieldWeight in 7453, 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=7453)
0.33333334 = coord(1/3)
0.2 = coord(2/10)
- Abstract
- Presents a novel method to extract from a web object its hyper informative content, in contrast with current search engines, which only deal with the textual information content. This method is not only valuable per se, but it is shown to be able to considerably increase the precision of current search engines. It integrates with existing search engine technology since it can be implemented on top of every search engine, acting as a post-processor, thus automatically transforming a search engine into its corresponding hyper version. Shows how the hyper information can be usefully employed to face the search engines persuasion problem
- Date
- 1. 8.1996 22:08:06
-
Shapira, B.; Zabar, B.: Personalized search : integrating collaboration and social networks (2011)
0.00
0.004620074 = product of:
0.023100369 = sum of:
0.010176711 = product of:
0.03053013 = sum of:
0.03053013 = weight(_text_:problem in 4140) [ClassicSimilarity], result of:
0.03053013 = score(doc=4140,freq=2.0), product of:
0.1302053 = queryWeight, product of:
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03067635 = queryNorm
0.23447686 = fieldWeight in 4140, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.0390625 = fieldNorm(doc=4140)
0.33333334 = coord(1/3)
0.012923657 = product of:
0.03877097 = sum of:
0.03877097 = weight(_text_:2010 in 4140) [ClassicSimilarity], result of:
0.03877097 = score(doc=4140,freq=2.0), product of:
0.14672957 = queryWeight, product of:
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.03067635 = queryNorm
0.2642342 = fieldWeight in 4140, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.0390625 = fieldNorm(doc=4140)
0.33333334 = coord(1/3)
0.2 = coord(2/10)
- Abstract
- Despite improvements in their capabilities, search engines still fail to provide users with only relevant results. One reason is that most search engines implement a "one size fits all" approach that ignores personal preferences when retrieving the results of a user's query. Recent studies (Smyth, 2010) have elaborated the importance of personalizing search results and have proposed integrating recommender system methods for enhancing results using contextual and extrinsic information that might indicate the user's actual needs. In this article, we review recommender system methods used for personalizing and improving search results and examine the effect of two such methods that are merged for this purpose. One method is based on collaborative users' knowledge; the second integrates information from the user's social network. We propose new methods for collaborative-and social-based search and demonstrate that each of these methods, when separately applied, produce more accurate search results than does a purely keyword-based search engine (referred to as "standard search engine"), where the social search engine is more accurate than is the collaborative one. However, separately applied, these methods do not produce a sufficient number of results (low coverage). Nevertheless, merging these methods with those implemented by standard search engines overcomes the low-coverage problem and produces personalized results for users that display significantly more accurate results while also providing sufficient coverage than do standard search engines. The improvement, however, is significant only for topics for which the diversity of terms used for queries among users is low.
-
Mukherjea, S.; Hirata, K.; Hara, Y.: Towards a multimedia World-Wide Web information retrieval engine (1997)
0.00
0.0041048992 = product of:
0.020524496 = sum of:
0.012212053 = product of:
0.03663616 = sum of:
0.03663616 = weight(_text_:problem in 2678) [ClassicSimilarity], result of:
0.03663616 = score(doc=2678,freq=2.0), product of:
0.1302053 = queryWeight, product of:
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03067635 = queryNorm
0.28137225 = fieldWeight in 2678, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.046875 = fieldNorm(doc=2678)
0.33333334 = coord(1/3)
0.008312443 = product of:
0.02493733 = sum of:
0.02493733 = weight(_text_:22 in 2678) [ClassicSimilarity], result of:
0.02493733 = score(doc=2678,freq=2.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = 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)
0.33333334 = coord(1/3)
0.2 = coord(2/10)
- 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
-
Bilal, D.: Children's use of the Yahooligans! Web search engine : III. Cognitive and physical behaviors on fully self-generated search tasks (2002)
0.00
0.0041048992 = product of:
0.020524496 = sum of:
0.012212053 = product of:
0.03663616 = sum of:
0.03663616 = weight(_text_:problem in 5228) [ClassicSimilarity], result of:
0.03663616 = score(doc=5228,freq=2.0), product of:
0.1302053 = queryWeight, product of:
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03067635 = queryNorm
0.28137225 = fieldWeight in 5228, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.046875 = fieldNorm(doc=5228)
0.33333334 = coord(1/3)
0.008312443 = product of:
0.02493733 = sum of:
0.02493733 = weight(_text_:22 in 5228) [ClassicSimilarity], result of:
0.02493733 = score(doc=5228,freq=2.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.23214069 = fieldWeight in 5228, 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=5228)
0.33333334 = coord(1/3)
0.2 = coord(2/10)
- Abstract
- Bilal, in this third part of her Yahooligans! study looks at children's performance with self-generated search tasks, as compared to previously assigned search tasks looking for differences in success, cognitive behavior, physical behavior, and task preference. Lotus ScreenCam was used to record interactions and post search interviews to record impressions. The subjects, the same 22 seventh grade children in the previous studies, generated topics of interest that were mediated with the researcher into more specific topics where necessary. Fifteen usable sessions form the basis of the study. Eleven children were successful in finding information, a rate of 73% compared to 69% in assigned research questions, and 50% in assigned fact-finding questions. Eighty-seven percent began using one or two keyword searches. Spelling was a problem. Successful children made fewer keyword searches and the number of search moves averaged 5.5 as compared to 2.4 on the research oriented task and 3.49 on the factual. Backtracking and looping were common. The self-generated task was preferred by 47% of the subjects.
-
Bouidghaghen, O.; Tamine, L.: Spatio-temporal based personalization for mobile search (2012)
0.00
0.0041048992 = product of:
0.020524496 = sum of:
0.012212053 = product of:
0.03663616 = sum of:
0.03663616 = weight(_text_:problem in 108) [ClassicSimilarity], result of:
0.03663616 = score(doc=108,freq=2.0), product of:
0.1302053 = queryWeight, product of:
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03067635 = queryNorm
0.28137225 = fieldWeight in 108, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.046875 = fieldNorm(doc=108)
0.33333334 = coord(1/3)
0.008312443 = product of:
0.02493733 = sum of:
0.02493733 = weight(_text_:22 in 108) [ClassicSimilarity], result of:
0.02493733 = score(doc=108,freq=2.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.23214069 = fieldWeight in 108, 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=108)
0.33333334 = coord(1/3)
0.2 = coord(2/10)
- Abstract
- The explosion of the information available on the Internet has made traditional information retrieval systems, characterized by one size fits all approaches, less effective. Indeed, users are overwhelmed by the information delivered by such systems in response to their queries, particularly when the latter are ambiguous. In order to tackle this problem, the state-of-the-art reveals that there is a growing interest towards contextual information retrieval (CIR) which relies on various sources of evidence issued from the user's search background and environment, in order to improve the retrieval accuracy. This chapter focuses on mobile context, highlights challenges they present for IR, and gives an overview of CIR approaches applied in this environment. Then, the authors present an approach to personalize search results for mobile users by exploiting both cognitive and spatio-temporal contexts. The experimental evaluation undertaken in front of Yahoo search shows that the approach improves the quality of top search result lists and enhances search result precision.
- Date
- 20. 4.2012 13:19:22
-
Loia, V.; Pedrycz, W.; Senatore, S.; Sessa, M.I.: Web navigation support by means of proximity-driven assistant agents (2006)
0.00
0.0034207494 = product of:
0.017103747 = sum of:
0.010176711 = product of:
0.03053013 = sum of:
0.03053013 = weight(_text_:problem in 5283) [ClassicSimilarity], result of:
0.03053013 = score(doc=5283,freq=2.0), product of:
0.1302053 = queryWeight, product of:
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03067635 = queryNorm
0.23447686 = fieldWeight in 5283, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.0390625 = fieldNorm(doc=5283)
0.33333334 = coord(1/3)
0.0069270367 = product of:
0.02078111 = sum of:
0.02078111 = weight(_text_:22 in 5283) [ClassicSimilarity], result of:
0.02078111 = score(doc=5283,freq=2.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.19345059 = fieldWeight in 5283, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=5283)
0.33333334 = coord(1/3)
0.2 = coord(2/10)
- Abstract
- The explosive growth of the Web and the consequent exigency of the Web personalization domain have gained a key position in the direction of customization of the Web information to the needs of specific users, taking advantage of the knowledge acquired from the analysis of the user's navigational behavior (usage data) in correlation with other information collected in the Web context, namely, structure, content, and user profile data. This work presents an agent-based framework designed to help a user in achieving personalized navigation, by recommending related documents according to the user's responses in similar-pages searching mode. Our agent-based approach is grounded in the integration of different techniques and methodologies into a unique platform featuring user profiling, fuzzy multisets, proximity-oriented fuzzy clustering, and knowledge-based discovery technologies. Each of these methodologies serves to solve one facet of the general problem (discovering documents relevant to the user by searching the Web) and is treated by specialized agents that ultimately achieve the final functionality through cooperation and task distribution.
- Date
- 22. 7.2006 16:59:13
-
Werner, K.: das Confirmation/Disconfirmation-Paradigma der Kundenzufriedenheit im Kontext des Information Retrieval : Größere Zufriedenheit durch bessere Suchmaschinen? (2010)
0.00
0.0032694556 = product of:
0.032694556 = sum of:
0.032694556 = product of:
0.09808366 = sum of:
0.09808366 = weight(_text_:2010 in 4016) [ClassicSimilarity], result of:
0.09808366 = score(doc=4016,freq=5.0), product of:
0.14672957 = queryWeight, product of:
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.03067635 = queryNorm
0.6684655 = fieldWeight in 4016, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.0625 = fieldNorm(doc=4016)
0.33333334 = coord(1/3)
0.1 = coord(1/10)
- Source
- Information - Wissenschaft und Praxis. 61(2010) H.6/7, S.385-396
- Year
- 2010
-
Croft, W.B.; Metzler, D.; Strohman, T.: Search engines : information retrieval in practice (2010)
0.00
0.0029013536 = product of:
0.029013537 = sum of:
0.029013537 = product of:
0.08704061 = sum of:
0.08704061 = weight(_text_:2010 in 2605) [ClassicSimilarity], result of:
0.08704061 = score(doc=2605,freq=7.0), product of:
0.14672957 = queryWeight, product of:
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.03067635 = queryNorm
0.59320426 = fieldWeight in 2605, product of:
2.6457512 = tf(freq=7.0), with freq of:
7.0 = termFreq=7.0
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.046875 = fieldNorm(doc=2605)
0.33333334 = coord(1/3)
0.1 = coord(1/10)
- Classification
- TK 5105.884 .C765 2010
- LCC
- TK 5105.884 .C765 2010
- Year
- 2010
-
Knitel, M.; Labner, J.; Oberhauser, O.: Sachliche Erschließung und die neue Suchmaschine des Österreichischen Bibliothekenverbundes (2010)
0.00
0.0028607734 = product of:
0.028607734 = sum of:
0.028607734 = product of:
0.0858232 = sum of:
0.0858232 = weight(_text_:2010 in 4207) [ClassicSimilarity], result of:
0.0858232 = score(doc=4207,freq=5.0), product of:
0.14672957 = queryWeight, product of:
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.03067635 = queryNorm
0.5849073 = fieldWeight in 4207, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.0546875 = fieldNorm(doc=4207)
0.33333334 = coord(1/3)
0.1 = coord(1/10)
- Source
- B.I.T.online. 13(2010) H.3, S.275-285
- Year
- 2010
-
Herrera-Viedma, E.; Pasi, G.: Soft approaches to information retrieval and information access on the Web : an introduction to the special topic section (2006)
0.00
0.0027365999 = product of:
0.013682999 = sum of:
0.008141369 = product of:
0.024424106 = sum of:
0.024424106 = weight(_text_:problem in 5285) [ClassicSimilarity], result of:
0.024424106 = score(doc=5285,freq=2.0), product of:
0.1302053 = queryWeight, product of:
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03067635 = queryNorm
0.1875815 = fieldWeight in 5285, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03125 = fieldNorm(doc=5285)
0.33333334 = coord(1/3)
0.0055416296 = product of:
0.016624888 = sum of:
0.016624888 = weight(_text_:22 in 5285) [ClassicSimilarity], result of:
0.016624888 = score(doc=5285,freq=2.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.15476047 = fieldWeight in 5285, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=5285)
0.33333334 = coord(1/3)
0.2 = coord(2/10)
- Abstract
- The World Wide Web is a popular and interactive medium used to collect, disseminate, and access an increasingly huge amount of information, which constitutes the mainstay of the so-called information and knowledge society. Because of its spectacular growth, related to both Web resources (pages, sites, and services) and number of users, the Web is nowadays the main information repository and provides some automatic systems for locating, accessing, and retrieving information. However, an open and crucial question remains: how to provide fast and effective retrieval of the information relevant to specific users' needs. This is a very hard and complex task, since it is pervaded with subjectivity, vagueness, and uncertainty. The expression soft computing refers to techniques and methodologies that work synergistically with the aim of providing flexible information processing tolerant of imprecision, vagueness, partial truth, and approximation. So, soft computing represents a good candidate to design effective systems for information access and retrieval on the Web. One of the most representative tools of soft computing is fuzzy set theory. This special topic section collects research articles witnessing some recent advances in improving the processes of information access and retrieval on the Web by using soft computing tools, and in particular, by using fuzzy sets and/or integrating them with other soft computing tools. In this introductory article, we first review the problem of Web retrieval and the concept of soft computing technology. We then briefly introduce the articles in this section and conclude by highlighting some future research directions that could benefit from the use of soft computing technologies.
- Date
- 22. 7.2006 16:59:33
-
Averesch, D.: Googeln ohne Google : Mit alternativen Suchmaschinen gelingt ein neutraler Überblick (2010)
0.00
0.0027306264 = product of:
0.027306262 = sum of:
0.027306262 = product of:
0.04095939 = sum of:
0.028490728 = weight(_text_:2010 in 3374) [ClassicSimilarity], result of:
0.028490728 = score(doc=3374,freq=3.0), product of:
0.14672957 = queryWeight, product of:
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.03067635 = queryNorm
0.19417168 = fieldWeight in 3374, product of:
1.7320508 = tf(freq=3.0), with freq of:
3.0 = termFreq=3.0
4.7831497 = idf(docFreq=1005, maxDocs=44218)
0.0234375 = fieldNorm(doc=3374)
0.012468665 = weight(_text_:22 in 3374) [ClassicSimilarity], result of:
0.012468665 = score(doc=3374,freq=2.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.116070345 = fieldWeight in 3374, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0234375 = fieldNorm(doc=3374)
0.6666667 = coord(2/3)
0.1 = coord(1/10)
- Date
- 3. 5.1997 8:44:22
- Year
- 2010
-
Großjohann, K.: Gathering-, Harvesting-, Suchmaschinen (1996)
0.00
0.0023511145 = product of:
0.023511145 = sum of:
0.023511145 = product of:
0.07053343 = sum of:
0.07053343 = weight(_text_:22 in 3227) [ClassicSimilarity], result of:
0.07053343 = score(doc=3227,freq=4.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.6565931 = fieldWeight in 3227, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=3227)
0.33333334 = coord(1/3)
0.1 = coord(1/10)
- Date
- 7. 2.1996 22:38:41
- Pages
- 22 S
-
Höfer, W.: Detektive im Web (1999)
0.00
0.0023511145 = product of:
0.023511145 = sum of:
0.023511145 = product of:
0.07053343 = sum of:
0.07053343 = weight(_text_:22 in 4007) [ClassicSimilarity], result of:
0.07053343 = score(doc=4007,freq=4.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.6565931 = fieldWeight in 4007, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=4007)
0.33333334 = coord(1/3)
0.1 = coord(1/10)
- Date
- 22. 8.1999 20:22:06
-
Rensman, J.: Blick ins Getriebe (1999)
0.00
0.0023511145 = product of:
0.023511145 = sum of:
0.023511145 = product of:
0.07053343 = sum of:
0.07053343 = weight(_text_:22 in 4009) [ClassicSimilarity], result of:
0.07053343 = score(doc=4009,freq=4.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.6565931 = fieldWeight in 4009, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=4009)
0.33333334 = coord(1/3)
0.1 = coord(1/10)
- Date
- 22. 8.1999 21:22:59
-
Knight, J.P.: Resource discovery on the Internet (1996)
0.00
0.002302727 = product of:
0.02302727 = sum of:
0.02302727 = product of:
0.069081806 = sum of:
0.069081806 = weight(_text_:problem in 2604) [ClassicSimilarity], result of:
0.069081806 = score(doc=2604,freq=4.0), product of:
0.1302053 = queryWeight, product of:
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.03067635 = queryNorm
0.5305606 = fieldWeight in 2604, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.244485 = idf(docFreq=1723, maxDocs=44218)
0.0625 = fieldNorm(doc=2604)
0.33333334 = coord(1/3)
0.1 = coord(1/10)
- Abstract
- Resource discovery is the problem of locating, and keeping track of, documents and other resources available on the Internet. Investigates some of the techniques that are currently being employed to help solve this problem. These include manually created catalogue records, centralized robot indexes, distributed indexing technology and author supplied metadata
-
Stock, M.; Stock, W.G.: Recherchieren im Internet (2004)
0.00
0.0022166518 = product of:
0.022166518 = sum of:
0.022166518 = product of:
0.06649955 = sum of:
0.06649955 = weight(_text_:22 in 4686) [ClassicSimilarity], result of:
0.06649955 = score(doc=4686,freq=2.0), product of:
0.10742335 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03067635 = queryNorm
0.61904186 = fieldWeight in 4686, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=4686)
0.33333334 = coord(1/3)
0.1 = coord(1/10)
- Date
- 27.11.2005 18:04:22
