-
Hotho, A.; Bloehdorn, S.: Data Mining 2004 : Text classification by boosting weak learners based on terms and concepts (2004)
0.10
0.097582184 = sum of:
0.05333692 = product of:
0.21334767 = sum of:
0.21334767 = weight(_text_:3a in 562) [ClassicSimilarity], result of:
0.21334767 = score(doc=562,freq=2.0), product of:
0.37961 = queryWeight, product of:
8.478011 = idf(docFreq=24, maxDocs=44218)
0.044775832 = queryNorm
0.56201804 = fieldWeight in 562, 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=562)
0.25 = coord(1/4)
0.044245265 = product of:
0.066367894 = sum of:
0.029968852 = weight(_text_:j in 562) [ClassicSimilarity], result of:
0.029968852 = score(doc=562,freq=2.0), product of:
0.14227505 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.044775832 = queryNorm
0.21064025 = fieldWeight in 562, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.046875 = fieldNorm(doc=562)
0.03639904 = weight(_text_:22 in 562) [ClassicSimilarity], result of:
0.03639904 = score(doc=562,freq=2.0), product of:
0.15679733 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044775832 = queryNorm
0.23214069 = fieldWeight in 562, 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=562)
0.6666667 = coord(2/3)
- Content
- Vgl.: http://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CEAQFjAA&url=http%3A%2F%2Fciteseerx.ist.psu.edu%2Fviewdoc%2Fdownload%3Fdoi%3D10.1.1.91.4940%26rep%3Drep1%26type%3Dpdf&ei=dOXrUMeIDYHDtQahsIGACg&usg=AFQjCNHFWVh6gNPvnOrOS9R3rkrXCNVD-A&sig2=5I2F5evRfMnsttSgFF9g7Q&bvm=bv.1357316858,d.Yms.
- Date
- 8. 1.2013 10:22:32
-
HaCohen-Kerner, Y. et al.: Classification using various machine learning methods and combinations of key-phrases and visual features (2016)
0.04
0.036871053 = product of:
0.07374211 = sum of:
0.07374211 = product of:
0.11061315 = sum of:
0.049948085 = weight(_text_:j in 2748) [ClassicSimilarity], result of:
0.049948085 = score(doc=2748,freq=2.0), product of:
0.14227505 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.044775832 = queryNorm
0.35106707 = fieldWeight in 2748, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.078125 = fieldNorm(doc=2748)
0.06066507 = weight(_text_:22 in 2748) [ClassicSimilarity], result of:
0.06066507 = score(doc=2748,freq=2.0), product of:
0.15679733 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044775832 = queryNorm
0.38690117 = fieldWeight in 2748, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=2748)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Date
- 1. 2.2016 18:25:22
- Source
- Semantic keyword-based search on structured data sources: First COST Action IC1302 International KEYSTONE Conference, IKC 2015, Coimbra, Portugal, September 8-9, 2015. Revised Selected Papers. Eds.: J. Cardoso et al
-
Mengle, S.; Goharian, N.: Passage detection using text classification (2009)
0.03
0.025438856 = product of:
0.050877713 = sum of:
0.050877713 = product of:
0.076316565 = sum of:
0.045984026 = weight(_text_:n in 2765) [ClassicSimilarity], result of:
0.045984026 = score(doc=2765,freq=2.0), product of:
0.19305801 = queryWeight, product of:
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.044775832 = queryNorm
0.23818761 = fieldWeight in 2765, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.0390625 = fieldNorm(doc=2765)
0.030332536 = weight(_text_:22 in 2765) [ClassicSimilarity], result of:
0.030332536 = score(doc=2765,freq=2.0), product of:
0.15679733 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044775832 = queryNorm
0.19345059 = fieldWeight in 2765, 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=2765)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Date
- 22. 3.2009 19:14:43
-
Egbert, J.; Biber, D.; Davies, M.: Developing a bottom-up, user-based method of web register classification (2015)
0.02
0.022122633 = product of:
0.044245265 = sum of:
0.044245265 = product of:
0.066367894 = sum of:
0.029968852 = weight(_text_:j in 2158) [ClassicSimilarity], result of:
0.029968852 = score(doc=2158,freq=2.0), product of:
0.14227505 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.044775832 = queryNorm
0.21064025 = fieldWeight in 2158, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.046875 = fieldNorm(doc=2158)
0.03639904 = weight(_text_:22 in 2158) [ClassicSimilarity], result of:
0.03639904 = score(doc=2158,freq=2.0), product of:
0.15679733 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044775832 = queryNorm
0.23214069 = fieldWeight in 2158, 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=2158)
0.6666667 = coord(2/3)
0.5 = coord(1/2)
- Date
- 4. 8.2015 19:22:04
-
Panyr, J.: STEINADLER: ein Verfahren zur automatischen Deskribierung und zur automatischen thematischen Klassifikation (1978)
0.01
0.0133194905 = product of:
0.026638981 = sum of:
0.026638981 = product of:
0.07991694 = sum of:
0.07991694 = weight(_text_:j in 5169) [ClassicSimilarity], result of:
0.07991694 = score(doc=5169,freq=2.0), product of:
0.14227505 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.044775832 = queryNorm
0.5617073 = fieldWeight in 5169, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.125 = fieldNorm(doc=5169)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Cathey, R.J.; Jensen, E.C.; Beitzel, S.M.; Frieder, O.; Grossman, D.: Exploiting parallelism to support scalable hierarchical clustering (2007)
0.01
0.013274446 = product of:
0.026548892 = sum of:
0.026548892 = product of:
0.07964668 = sum of:
0.07964668 = weight(_text_:n in 448) [ClassicSimilarity], result of:
0.07964668 = score(doc=448,freq=6.0), product of:
0.19305801 = queryWeight, product of:
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.044775832 = queryNorm
0.41255307 = fieldWeight in 448, product of:
2.4494898 = tf(freq=6.0), with freq of:
6.0 = termFreq=6.0
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.0390625 = fieldNorm(doc=448)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Abstract
- A distributed memory parallel version of the group average hierarchical agglomerative clustering algorithm is proposed to enable scaling the document clustering problem to large collections. Using standard message passing operations reduces interprocess communication while maintaining efficient load balancing. In a series of experiments using a subset of a standard Text REtrieval Conference (TREC) test collection, our parallel hierarchical clustering algorithm is shown to be scalable in terms of processors efficiently used and the collection size. Results show that our algorithm performs close to the expected O(n**2/p) time on p processors rather than the worst-case O(n**3/p) time. Furthermore, the O(n**2/p) memory complexity per node allows larger collections to be clustered as the number of nodes increases. While partitioning algorithms such as k-means are trivially parallelizable, our results confirm those of other studies which showed that hierarchical algorithms produce significantly tighter clusters in the document clustering task. Finally, we show how our parallel hierarchical agglomerative clustering algorithm can be used as the clustering subroutine for a parallel version of the buckshot algorithm to cluster the complete TREC collection at near theoretical runtime expectations.
-
Choi, B.; Peng, X.: Dynamic and hierarchical classification of Web pages (2004)
0.01
0.013006247 = product of:
0.026012493 = sum of:
0.026012493 = product of:
0.07803748 = sum of:
0.07803748 = weight(_text_:n in 2555) [ClassicSimilarity], result of:
0.07803748 = score(doc=2555,freq=4.0), product of:
0.19305801 = queryWeight, product of:
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.044775832 = queryNorm
0.40421778 = fieldWeight in 2555, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.046875 = fieldNorm(doc=2555)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Abstract
- Automatic classification of Web pages is an effective way to organise the vast amount of information and to assist in retrieving relevant information from the Internet. Although many automatic classification systems have been proposed, most of them ignore the conflict between the fixed number of categories and the growing number of Web pages being added into the systems. They also require searching through all existing categories to make any classification. This article proposes a dynamic and hierarchical classification system that is capable of adding new categories as required, organising the Web pages into a tree structure, and classifying Web pages by searching through only one path of the tree. The proposed single-path search technique reduces the search complexity from (n) to (log(n)). Test results show that the system improves the accuracy of classification by 6 percent in comparison to related systems. The dynamic-category expansion technique also achieves satisfying results for adding new categories into the system as required.
-
Fuhr, N.: Klassifikationsverfahren bei der automatischen Indexierung (1983)
0.01
0.012262408 = product of:
0.024524815 = sum of:
0.024524815 = product of:
0.073574446 = sum of:
0.073574446 = weight(_text_:n in 7697) [ClassicSimilarity], result of:
0.073574446 = score(doc=7697,freq=2.0), product of:
0.19305801 = queryWeight, product of:
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.044775832 = queryNorm
0.38110018 = fieldWeight in 7697, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.0625 = fieldNorm(doc=7697)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Subramanian, S.; Shafer, K.E.: Clustering (2001)
0.01
0.012133013 = product of:
0.024266027 = sum of:
0.024266027 = product of:
0.07279808 = sum of:
0.07279808 = weight(_text_:22 in 1046) [ClassicSimilarity], result of:
0.07279808 = score(doc=1046,freq=2.0), product of:
0.15679733 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044775832 = queryNorm
0.46428138 = fieldWeight in 1046, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=1046)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 5. 5.2003 14:17:22
-
Kleinoeder, H.H.; Puzicha, J.: Automatische Katalogisierung am Beispiel einer Pilotanwendung (2002)
0.01
0.011654554 = product of:
0.023309108 = sum of:
0.023309108 = product of:
0.06992732 = sum of:
0.06992732 = weight(_text_:j in 1154) [ClassicSimilarity], result of:
0.06992732 = score(doc=1154,freq=2.0), product of:
0.14227505 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.044775832 = queryNorm
0.4914939 = fieldWeight in 1154, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.109375 = fieldNorm(doc=1154)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Meder, N.: Artificial intelligence as a tool of classification, or: the network of language games as cognitive paradigm (1985)
0.01
0.010729606 = product of:
0.021459213 = sum of:
0.021459213 = product of:
0.064377636 = sum of:
0.064377636 = weight(_text_:n in 7694) [ClassicSimilarity], result of:
0.064377636 = score(doc=7694,freq=2.0), product of:
0.19305801 = queryWeight, product of:
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.044775832 = queryNorm
0.33346266 = fieldWeight in 7694, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.0546875 = fieldNorm(doc=7694)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Reiner, U.: Automatische DDC-Klassifizierung von bibliografischen Titeldatensätzen (2009)
0.01
0.010110846 = product of:
0.020221692 = sum of:
0.020221692 = product of:
0.06066507 = sum of:
0.06066507 = weight(_text_:22 in 611) [ClassicSimilarity], result of:
0.06066507 = score(doc=611,freq=2.0), product of:
0.15679733 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044775832 = queryNorm
0.38690117 = fieldWeight in 611, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=611)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Date
- 22. 8.2009 12:54:24
-
Panyr, J.: Automatische Klassifikation und Information Retrieval : Anwendung und Entwicklung komplexer Verfahren in Information-Retrieval-Systemen und ihre Evaluierung (1986)
0.01
0.009989617 = product of:
0.019979235 = sum of:
0.019979235 = product of:
0.059937704 = sum of:
0.059937704 = weight(_text_:j in 32) [ClassicSimilarity], result of:
0.059937704 = score(doc=32,freq=2.0), product of:
0.14227505 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.044775832 = queryNorm
0.4212805 = fieldWeight in 32, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.09375 = fieldNorm(doc=32)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Godby, C. J.; Stuler, J.: ¬The Library of Congress Classification as a knowledge base for automatic subject categorization (2001)
0.01
0.009418301 = product of:
0.018836603 = sum of:
0.018836603 = product of:
0.056509808 = sum of:
0.056509808 = weight(_text_:j in 1567) [ClassicSimilarity], result of:
0.056509808 = score(doc=1567,freq=4.0), product of:
0.14227505 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.044775832 = queryNorm
0.39718705 = fieldWeight in 1567, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.0625 = fieldNorm(doc=1567)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Drori, O.; Alon, N.: Using document classification for displaying search results (2003)
0.01
0.009196806 = product of:
0.018393612 = sum of:
0.018393612 = product of:
0.055180833 = sum of:
0.055180833 = weight(_text_:n in 1565) [ClassicSimilarity], result of:
0.055180833 = score(doc=1565,freq=2.0), product of:
0.19305801 = queryWeight, product of:
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.044775832 = queryNorm
0.28582513 = fieldWeight in 1565, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.046875 = fieldNorm(doc=1565)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Finn, A.; Kushmerick, N.: Learning to classify documents according to genre (2006)
0.01
0.009196806 = product of:
0.018393612 = sum of:
0.018393612 = product of:
0.055180833 = sum of:
0.055180833 = weight(_text_:n in 6010) [ClassicSimilarity], result of:
0.055180833 = score(doc=6010,freq=2.0), product of:
0.19305801 = queryWeight, product of:
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.044775832 = queryNorm
0.28582513 = fieldWeight in 6010, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.046875 = fieldNorm(doc=6010)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Teich, E.; Degaetano-Ortlieb, S.; Fankhauser, P.; Kermes, H.; Lapshinova-Koltunski, E.: ¬The linguistic construal of disciplinarity : a data-mining approach using register features (2016)
0.01
0.009196806 = product of:
0.018393612 = sum of:
0.018393612 = product of:
0.055180833 = sum of:
0.055180833 = weight(_text_:n in 3015) [ClassicSimilarity], result of:
0.055180833 = score(doc=3015,freq=2.0), product of:
0.19305801 = queryWeight, product of:
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.044775832 = queryNorm
0.28582513 = fieldWeight in 3015, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.046875 = fieldNorm(doc=3015)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
- Abstract
- We analyze the linguistic evolution of selected scientific disciplines over a 30-year time span (1970s to 2000s). Our focus is on four highly specialized disciplines at the boundaries of computer science that emerged during that time: computational linguistics, bioinformatics, digital construction, and microelectronics. Our analysis is driven by the question whether these disciplines develop a distinctive language use-both individually and collectively-over the given time period. The data set is the English Scientific Text Corpus (scitex), which includes texts from the 1970s/1980s and early 2000s. Our theoretical basis is register theory. In terms of methods, we combine corpus-based methods of feature extraction (various aggregated features [part-of-speech based], n-grams, lexico-grammatical patterns) and automatic text classification. The results of our research are directly relevant to the study of linguistic variation and languages for specific purposes (LSP) and have implications for various natural language processing (NLP) tasks, for example, authorship attribution, text mining, or training NLP tools.
-
Wätjen, H.-J.; Diekmann, B.; Möller, G.; Carstensen, K.-U.: Bericht zum DFG-Projekt: GERHARD : German Harvest Automated Retrieval and Directory (1998)
0.01
0.008324681 = product of:
0.016649362 = sum of:
0.016649362 = product of:
0.049948085 = sum of:
0.049948085 = weight(_text_:j in 3065) [ClassicSimilarity], result of:
0.049948085 = score(doc=3065,freq=2.0), product of:
0.14227505 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.044775832 = queryNorm
0.35106707 = fieldWeight in 3065, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.078125 = fieldNorm(doc=3065)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Wätjen, H.-J.: Automatisches Sammeln, Klassifizieren und Indexieren von wissenschaftlich relevanten Informationsressourcen im deutschen World Wide Web : das DFG-Projekt GERHARD (1998)
0.01
0.008324681 = product of:
0.016649362 = sum of:
0.016649362 = product of:
0.049948085 = sum of:
0.049948085 = weight(_text_:j in 3066) [ClassicSimilarity], result of:
0.049948085 = score(doc=3066,freq=2.0), product of:
0.14227505 = queryWeight, product of:
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.044775832 = queryNorm
0.35106707 = fieldWeight in 3066, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.1774964 = idf(docFreq=5010, maxDocs=44218)
0.078125 = fieldNorm(doc=3066)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
-
Calado, P.; Cristo, M.; Gonçalves, M.A.; Moura, E.S. de; Ribeiro-Neto, B.; Ziviani, N.: Link-based similarity measures for the classification of Web documents (2006)
0.01
0.0076640043 = product of:
0.015328009 = sum of:
0.015328009 = product of:
0.045984026 = sum of:
0.045984026 = weight(_text_:n in 4921) [ClassicSimilarity], result of:
0.045984026 = score(doc=4921,freq=2.0), product of:
0.19305801 = queryWeight, product of:
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.044775832 = queryNorm
0.23818761 = fieldWeight in 4921, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.3116565 = idf(docFreq=1611, maxDocs=44218)
0.0390625 = fieldNorm(doc=4921)
0.33333334 = coord(1/3)
0.5 = coord(1/2)
