-
Matthews, B.; Jones, C.; Puzon, B.; Moon, J.; Tudhope, D.; Golub, K.; Nielsen, M.L.: ¬An evaluation of enhancing social tagging with a knowledge organization system (2010)
0.01
0.008009318 = product of:
0.016018637 = sum of:
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = weight(_text_:k in 4171) [ClassicSimilarity], result of:
0.032037273 = score(doc=4171,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.19720423 = fieldWeight in 4171, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=4171)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Sun, A.; Bhowmick, S.S.; Nguyen, K.T.N.; Bai, G.: Tag-based social image retrieval : an empirical evaluation (2011)
0.01
0.008009318 = product of:
0.016018637 = sum of:
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = weight(_text_:k in 4938) [ClassicSimilarity], result of:
0.032037273 = score(doc=4938,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.19720423 = fieldWeight in 4938, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=4938)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Tags associated with social images are valuable information source for superior image search and retrieval experiences. Although various heuristics are valuable to boost tag-based search for images, there is a lack of general framework to study the impact of these heuristics. Specifically, the task of ranking images matching a given tag query based on their associated tags in descending order of relevance has not been well studied. In this article, we take the first step to propose a generic, flexible, and extensible framework for this task and exploit it for a systematic and comprehensive empirical evaluation of various methods for ranking images. To this end, we identified five orthogonal dimensions to quantify the matching score between a tagged image and a tag query. These five dimensions are: (i) tag relatedness to measure the degree of effectiveness of a tag describing the tagged image; (ii) tag discrimination to quantify the degree of discrimination of a tag with respect to the entire tagged image collection; (iii) tag length normalization analogous to document length normalization in web search; (iv) tag-query matching model for the matching score computation between an image tag and a query tag; and (v) query model for tag query rewriting. For each dimension, we identify a few implementations and evaluate their impact on NUS-WIDE dataset, the largest human-annotated dataset consisting of more than 269K tagged images from Flickr. We evaluated 81 single-tag queries and 443 multi-tag queries over 288 search methods and systematically compare their performances using standard metrics including Precision at top-K, Mean Average Precision (MAP), Recall, and Normalized Discounted Cumulative Gain (NDCG).
-
Yoon, K.: Conceptual syntagmatic associations in user tagging (2012)
0.01
0.008009318 = product of:
0.016018637 = sum of:
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = weight(_text_:k in 240) [ClassicSimilarity], result of:
0.032037273 = score(doc=240,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.19720423 = fieldWeight in 240, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=240)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Knautz, K.; Stock, W.G.: Collective indexing of emotions in videos (2011)
0.01
0.008009318 = product of:
0.016018637 = sum of:
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = weight(_text_:k in 295) [ClassicSimilarity], result of:
0.032037273 = score(doc=295,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.19720423 = fieldWeight in 295, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=295)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Weiand, K.; Hartl, A.; Hausmann, S.; Furche, T.; Bry, F.: Keyword-based search over semantic data (2012)
0.01
0.008009318 = product of:
0.016018637 = sum of:
0.016018637 = product of:
0.032037273 = sum of:
0.032037273 = weight(_text_:k in 432) [ClassicSimilarity], result of:
0.032037273 = score(doc=432,freq=2.0), product of:
0.16245733 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.045509085 = queryNorm
0.19720423 = fieldWeight in 432, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=432)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Danowski, P.: Authority files and Web 2.0 : Wikipedia and the PND. An Example (2007)
0.01
0.007707316 = product of:
0.015414632 = sum of:
0.015414632 = product of:
0.030829264 = sum of:
0.030829264 = weight(_text_:22 in 1291) [ClassicSimilarity], result of:
0.030829264 = score(doc=1291,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.19345059 = fieldWeight in 1291, 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=1291)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Content
- Vortrag anlässlich des Workshops: "Extending the multilingual capacity of The European Library in the EDL project Stockholm, Swedish National Library, 22-23 November 2007".
-
Chen, M.; Liu, X.; Qin, J.: Semantic relation extraction from socially-generated tags : a methodology for metadata generation (2008)
0.01
0.007707316 = product of:
0.015414632 = sum of:
0.015414632 = product of:
0.030829264 = sum of:
0.030829264 = weight(_text_:22 in 2648) [ClassicSimilarity], result of:
0.030829264 = score(doc=2648,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.19345059 = fieldWeight in 2648, 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=2648)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
-
Kim, H.L.; Scerri, S.; Breslin, J.G.; Decker, S.; Kim, H.G.: ¬The state of the art in tag ontologies : a semantic model for tagging and folksonomies (2008)
0.01
0.007707316 = product of:
0.015414632 = sum of:
0.015414632 = product of:
0.030829264 = sum of:
0.030829264 = weight(_text_:22 in 2650) [ClassicSimilarity], result of:
0.030829264 = score(doc=2650,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.19345059 = fieldWeight in 2650, 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=2650)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
-
Choi, Y.; Syn, S.Y.: Characteristics of tagging behavior in digitized humanities online collections (2016)
0.01
0.007707316 = product of:
0.015414632 = sum of:
0.015414632 = product of:
0.030829264 = sum of:
0.030829264 = weight(_text_:22 in 2891) [ClassicSimilarity], result of:
0.030829264 = score(doc=2891,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.19345059 = fieldWeight in 2891, 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=2891)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 21. 4.2016 11:23:22
-
Qin, C.; Liu, Y.; Mou, J.; Chen, J.: User adoption of a hybrid social tagging approach in an online knowledge community (2019)
0.01
0.007707316 = product of:
0.015414632 = sum of:
0.015414632 = product of:
0.030829264 = sum of:
0.030829264 = weight(_text_:22 in 5492) [ClassicSimilarity], result of:
0.030829264 = score(doc=5492,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.19345059 = fieldWeight in 5492, 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=5492)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
-
Bentley, C.M.; Labelle, P.R.: ¬A comparison of social tagging designs and user participation (2008)
0.01
0.006165853 = product of:
0.012331706 = sum of:
0.012331706 = product of:
0.024663411 = sum of:
0.024663411 = weight(_text_:22 in 2657) [ClassicSimilarity], result of:
0.024663411 = score(doc=2657,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.15476047 = fieldWeight in 2657, 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=2657)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
-
DeZelar-Tiedman, V.: Doing the LibraryThing(TM) in an academic library catalog (2008)
0.01
0.006165853 = product of:
0.012331706 = sum of:
0.012331706 = product of:
0.024663411 = sum of:
0.024663411 = weight(_text_:22 in 2666) [ClassicSimilarity], result of:
0.024663411 = score(doc=2666,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.15476047 = fieldWeight in 2666, 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=2666)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
-
Vander Wal, T.: Welcome to the Matrix! (2008)
0.01
0.006165853 = product of:
0.012331706 = sum of:
0.012331706 = product of:
0.024663411 = sum of:
0.024663411 = weight(_text_:22 in 2881) [ClassicSimilarity], result of:
0.024663411 = score(doc=2881,freq=2.0), product of:
0.15936506 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045509085 = queryNorm
0.15476047 = fieldWeight in 2881, 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=2881)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 6.2009 9:15:45
