Search results for "semantic space"

showing 3 items of 13 documents

Automatic Illustration of Short Texts via Web Images

2015

In this paper we propose a totally unsupervised and automatic illustration method, which aims to find onto the Web a set of images to illustrate the content of an input short text. The text is modelled as a semantic space and a set of relevant keywords is extracted. We compare and discuss different methods to create semantic representations by keyword extraction. Keywords are used to query Google Image Search engine for a list of relevant images. We also extract information from the Web pages that include the retrieved images, to create an Image Semantic Space, which is compared to the Text Semantic Space in order to rank the list of retrieved images. Tests showed that our method achieves v…

Settore ING-INF/05 - Sistemi Di Elaborazione Delle InformazioniWorld Wide WebMultimediaComputer scienceAutomatic Illustration Story Picturing Semantic Similarity Semantic Space Text Analysis Web Image Search Google Image.computer.software_genrecomputerProceedings of the 6th International Conference on Information Visualization Theory and Applications
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Graph-based exploration and clustering analysis of semantic spaces

2019

Abstract The goal of this study is to demonstrate how network science and graph theory tools and concepts can be effectively used for exploring and comparing semantic spaces of word embeddings and lexical databases. Specifically, we construct semantic networks based on word2vec representation of words, which is “learnt” from large text corpora (Google news, Amazon reviews), and “human built” word networks derived from the well-known lexical databases: WordNet and Moby Thesaurus. We compare “global” (e.g., degrees, distances, clustering coefficients) and “local” (e.g., most central nodes and community-type dense clusters) characteristics of considered networks. Our observations suggest that …

Text corpusSemantic spacesComputer Networks and CommunicationsComputer sciencegraph theory0211 other engineering and technologiesWordNetNetwork science02 engineering and technologysemanttinen webSemantic networkword2vec similarity networksWord2vec similarity networksClique relaxationscohesive clusters0202 electrical engineering electronic engineering information engineeringWord2vecCluster analysisThesaurus (information retrieval)021103 operations researchMultidisciplinaryInformation retrievalverkkoteorialcsh:T57-57.97Graph theorycliquesGraph theoryclique relaxationsComputational MathematicsCliqueslcsh:Applied mathematics. Quantitative methodssemantic spaces020201 artificial intelligence & image processingCohesive clusters
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Semantiskā telpa un robežas attēlošana Žana Bodrijāra esejā "Amerika"

2015

Bakalaura darba tēma ir semantiskās telpas un robežas attēlošana Žana Bodrijāra esejā „Amerika”, kas balstās uz semiotiķa Jurija Lotmaņa sižeta teorijas. Lai sekmīgi veiktu izpēti, tika izvirzīts mērķis, izmeklēt un izanalizēt semantisko telpu tekstā, to attēlot un starp to noteikt robežu. Galvenā darba sastāvdaļa ir analīze, kas ar Lotmaņa teorijas palīdzību ļauj izanalizēt sižeta veidošanās pamatprincipus un trīs jomas, kuras nosaka semantisko lauku. Izanalizējot un aprakstot trīs jomas, ir iespējams noteikt robežu un tās nozīmi. Nosauktie elementi ir cieši saistīti, jo tie veido sižeta teorijas jēdzienu. Izstrādātā analīze ir parādījusi, ka dotajā esejā var noteikt pilsētas un tuksneša t…

Valodniecībasemantic fieldLotmansemantic spaceplotboundary
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