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2345 items

  • A Mathematical Learning Environment Based on Serbian Language Resources

    Radojičić Marija, Obradović Ivan, Stanković Ranka, Utvić Miloć, Kaplar Sebastijan (2018)
    In recent years, in line with ever growing usage of Information technology, the learning environments are changing. The amount of available learning materials in various forms has increased. These new environments demand comprehensive learning systems, which enable management of the learning corpus with special attention paid to relevant lexical resources. In this paper we present the concept of a Mathematical Learning Environment in Serbian (MLES), which is based on a corpus of mathematical materials and various lexical resources, enabling ...
    mathematical content, text processing, mathematical formulae
    ... It supports indexing and search of mathematical content on the web using a full text search engine. To that end the solution uses linearization, transformation rules, generalization rules and ordering algorithm, which simplify the complex and highly symbolic mathematical structures into ...
    ... includes the theory graphs as the modular representation paradigm for mathematical knowledge. MathHub.info is an archive system for encoded knowledge and MathWebSearch is an example of a search engine enabling the search of mathematical formulae on the Web. The engine harvests the web for content ...
    ... presentation of mathematical encoded text [8]. The software solution is based on the concepts of math block identification and vector representation, with special attention paid to the search of mathematical topics using clusters and relevance ranking. The system provides ranked listing of results ...

  • Digital Library From A Domain Of Criminalistics As A Foundation For A Forensic Text Analysis

    Dalibor Vorkapić, Aleksandra Tomašević, Miljana Mladenović, Ranka Stanković, Nikola Vulović (2017)
    U ovom radu predstavljen je model koji omogućava prikupljanje, pripremu, opis metapodataka, upravljanje i eksploataciju, uključujući pretragu punog teksta dokumenata iz domena kriminalistike napisanih na srpskom jeziku. Predloženi pristup primenjuje se na veb portalu koji sakuplja različite tekstove nastale iz časopisa Akademije za kriminalistiku i policijske studije, Krivičnog zakona Srbije, konferencija „Tara“ i „Reiss“, kao i iz nekih doktorskih disertacija vezanih za ovu oblast istraživanje. Nakon obrade teksta, korpus koji sadrži preko 5500 stranica običnog teksta, kreiran je i ...
    Omeka, Wordnet, pretraga punog teksta, morfološka i semantička pretraga teksta, proširenje upita
    ... and improved by query expansion via web service relaying on the Serbian morphological dictionary and the Serbian WordNet semantic network for providing morphological and semantic text search expansion. The paper outlines possibilities for further use and analysis on a digital library as a corpus, ...
    ... Resources and Tools to Improve the Performance of Web Search Engines”, in Proceedings of the Sixth Interantional Conference on Language To keep development and use of the applications and resources at the same time, without frequent conversions, the strategy for the development was to support original ...
    ... property protection, the source, size and type of files on access to the source, the size and display format, and using them to actively monitor the number of users who visit and use certain content.13 Web platform Omeka use Dublin Core as a standard for displaying metadata. The Dublin Core includes ...

  • SrpELTeC: A Serbian Literary Corpus for Distant Reading

    Ranka Stanković, Cvetana Krstev, Duško Vitas (2024)
    U članku je predstavljen SrpELTeC, korpus razvijen u okviru akcije COST Distant Reading for European Literary History (CA16204). Svi romani u SrpELTeC-u su odabrani, pripremljeni i obeleženi korišćenjem zajedničkih principa uspostavljenih za sve jezičke zbirke u Evropskoj zbirci književnog teksta (ELTeC). Navedeni su izazovi i rešenja u pripremi SrpELTeC od nule. Svi romani su ručno kodirani u TEI sa bogatim metapodacima i strukturnim napomenama. Automatska anotacija je uključivala POS-označavanje, lematizaciju i imenovane entitete, oslanjajući se na resurse za obradu ...
    digital humanities, Serbian literature, text corpora, distant reading , linked data, named entity recognition, text analytics

  • Classification of Terms on a Positive-Negative Feelings Polarity Scale Based on Emoticons

    Mihailo Škorić (2017)
    The goal of this paper is to draw attention to the possibility of using emoticon-riddled text on the web in language-neutral sentiment analysis. It introduces several innovations in the existing framework of research and tests their effectiveness. It also presents a software tool especially made for that purpose, explains how it builds a database with sentimental value of terms and offers the user manual. Finally, it presents a software tool that tests the new database and gives some examples ...
    data mining, information extraction, emotions, text on the web
    ... Polarity Scale Based on Emoticons UDC 811.163.41’322.2 DOI 10.18485/infotheca.2017.17.1.4 ABSTRACT: The goal of this paper is to draw attention to the possibility of using emoticon-riddled text on the web in language- neutral sentiment analysis. It introduces sev- eral innovations in the existing framework ...
    ... with sentimental value of terms and offers the user manual. Finally, it presents a software tool that tests the new database and gives some examples of the analysis of the ob- tained results. KEYWORDS: data mining, information extraction, emotions, text on the web. PAPER SUBMITTED: 24 January 2017 PAPER ...
    ... need to confirm the process in an additional dialog box that will appear on the screen. Once the user is satisfied with the settings he can switch to the sec- ond part of the extraction, which is done by pressing ekstraktuj vrednosti iz teksta (extract values from the text) button on the production tab ...

  • E-Connecting Balkan Languages

    Cvetana Krstev, Ranka Stanković, Duško Vitas, Svetla Koeva (2009)
    In this paper we present a versatile language processing tool that can be successfully used for many Balkan languages. This tool relies for its work on several sophisticated textual and lexical resources that were developed for most of Balkan languages. These resources are based on several de facto standards in natural language processing.
    Query expansion, e-dictionary, wordnet, proper name, aligned text
    ... not experiment with morphological expansion for these languages. The possibility and the need for some of the functions developed within WS4LR to become also available on the web led to the development of the WS4QE web application for lexical resources. This application is still under ...
    ... and puti. The second one is restricted to poetical usage and a user can choose to delete it from the expended query if the working text is not of that kind. Figure 2. The original query keyword glava is shown in the upper left corner. The chosen query expansions are shown on the left side ...
    ... cases (n514, n518, n586, n3827, n4049) for the Serbian čamac and barka the near hyponym лодка is used. This is not an unexpected result; it only proves that searching with the help of semantic networks, on web for instance, can be useful, which is the ultimate goal of our experiments. Figure ...

  • Extraction of Bilingual Terminology Using Graphs, Dictionaries and GIZA++

    Branislava Šandrih, Ranka Stanković (2020)
    U nauci, industriji i mnogim istraživačkim oblastima, terminologija se brzo razvija. Najčešće, jezik koji je „lingua franca“ za većinu ovih oblasti je engleski. Kao posledica toga, za mnoga polja termini domena su koncipirani na engleskom, a kasnije se prevode na druge jezike. U ovom radu predstavljamo pristup za automatsko izdvajanje dvojezične terminologije za englesko-srpski jezički par koji se oslanja na usaglašeni dvojezični korpus domena, ekstraktor terminologije za ciljni jezik i alat za usklađivanje delova. Ispitujemo performanse metode na domenu ...
    ekstrakcija terminologije, validacija terminologije, GIZA++, grafovi, Unitex, klasifikacija teksta
    ... conducted and discussed in the later text. The proposed approach is based on the following hypothesis: On the basis of bilingual, aligned, domain-specific textual re- sources, a terminological list and/or a term extraction tool in a source language, and a system for the extraction of terminology- specific ...
    ... (Input iii) was done: (a) on the target language part of the aligned chunks (chunk); (b) on the target language part of the aligned input sentences (text). Infotheca Vol. 19, No. 2, December 2019 129 Šandrih B., Stanković R., “Extraction of Bilingual . . . ”, pp. 119–138 The summary of results obtained ...
    ... overview of previous work on this topic is given in Section 2. Lexical resources and tools that were used in the experiments in Subsection 3. The proposed approach is thoroughly explained in Section 4. Results and a discussion are given in Section 5. A Web application that implements the proposed technique ...

  • Development Of The Serbian Geological Resources Portal

    Ranka Stanković, Jelena Prodanović, Olivera Kitanović, Velizar Nikolić (2011)
    ... available. The web portal for geological resources of Serbia was created with the aid of modern web and GIS tech- nologies. The largest part was realized with the use of the PHP (Hypertext Preprocessor) script language on server side and the XHTML (eXtensible HyperText Markup Language) language on the client ...
    ... Current activities in the development of GeolISS components, as well as the activities related to the portal, are focused on the migration to the ArcGIS 10 platform, the implementation and inten- sive use of web services and web applications which consume them. Further steps encompass the creation of a lexicon ...
    ... Google Maps API6. During the development of the portal, the emphasis was placed on the use of modern technologies. Thus, the result was a comprehensive solution, visually and technologically in compliance with modern concepts in the creation of web applica- tions, offering the user a simple and intuitive ...

  • The Usage of Various Lexical Resources and Tools to Improve the Performance of Web Search Engines

    Krstev Cvetana, Stanković Ranka, Vitas Duško, Obradović Ivan (2008)
    In this paper we present how resources and tools developed within the Human Language Technology Group at the University of Belgrade can be used for tuning queries before submitting them to a web search engine. We argue that the selection of words chosen for a query, which are of paramount importance for the quality of results obtained by the query, can be substantially improved by using various lexical resources, such as morphological dictionaries and wordnets. These dictionaries enable semantic ...
    LR web services, MultiWord Expressions & Collocations, Information Extraction, Information Retrieval
    ... delivering a query to a web search engine the user is typically interested in information available on the web related to a particular topic. The result of this query is a selection of web pages the search engine determines as relevant to the query. The information the user is interested in ...
    ... For instance, a query with slati poruku ‘to send a message’ returns only pages that contain the verb slati in the infinitive form, or the verbal noun slanje ‘sending’ and omits numerous pages on the Web containing other verb forms like, for instance, šaljem poruku ‘(I) send a message’. In some ...
    ... means that the recall has been quadrupled. Thus we may conclude that a considerable increase of recall was obtained in all three examples. Figure 5. Results for expanded query for ‘istraživač’ 223 6. Conclusion Given the rapidly growing number of documents on the web, the formulation ...

  • Vebran Web Services for Corpus Query Expansion

    Ranka Stanković, Miloš Utvić (2020)
    U ovom radu se govori o razvoju veb usluga Vebran i njihovoj primeni u poboljšanju pretraživanja korpusa. Veb-servisi Vebran koriste se za konsultovanje spoljnih leksičkih izvora za srpski jezik (uglavnom elektronski morfološki rečnici i srpski Vordnet) i proširivanje korisničkih upita radi dobijanja relevantnijih rezultata iz srpskih korpusa.
    corpus search, web service, Serbian lexical resources, query expansion
    ... paper, we will focus on corpus case study. The query expansion will rely on different lexical resources to support the search: 1) morphological electronic dictionaries; 2) WordNets and 3) terminological databases. The new web services named Vebran are developed as an up- grade of the previous service w ...
    ... ifying the term X and the relation (semantic or morphological) which should exist between X and the requested lemmas or word forms. Based on the client’s request, Vebran services consult external lexical resources (see Sec- tion 3) and generate a response to the client. Communication with Vebran Web Services ...
    ... through the semantic network (wordnet). The emphasis in this paper is on morpho- logical query expansion supported by Vebran web services. Services consult external lexical resources and produce regular expressions that improve re- call of the retrieved inflected forms for a given lemma. The described ...

  • It-Sr-NER: Web Services for Recognizing and Linking Named Entities in Text and Displaying Them on a Web Map

    Olja Perišić, Ranka Stanković, Milica Ikonić Nešić, Mihailo Škorić (2023)
    The paper will present the results of the project `“It-Sr-NER: Web services for named entities recognition, linking and mapping,” in which teams from the University of Turin and the Society for Language Resources and Technologies JeRTeh participated, and whose goal was the development of the It-Sr-NER web service for named entity annotations in the text and displaying them on the map. Named entities in these services are names of persons, places, organizations, demonyms (ethnicities), events and works of art.
    General Engineering

  • LRMI markup of OER content within the BAEKTEL project

    Ranka Stanković, Daniela Carlucci, Olivera Kitanović, Nikola Vulović, Bojan Zlatić (2015)
    ... y [13]. The Schema.org metadata has the goal to improve the display of search results, thus making it easier for users to find the right web pages. The machine readable information inserted into the code of web pages helps search engines interpret the sense of the text on those pages ...
    ... approach is that the choice of a standardized learning object metadata vocabulary has valuable and beneficial implications. Within the BAEKTEL platform, machine readable information is inserted into the code of web pages, which helps search engines interpret the sense of the text on those pages, but ...
    ... way. 7. CONCLUSION The future of the web, what some call Web 3.0, is based on semantic search and algorithms that will help machines make sense of the data on web pages, interrelate it, and ultimately enable more adaptive learning environments for students. So the more material we tag with ...

  • EUROLAN 2021: Introduction to Linked Data for Linguistics Online Training School

    Milan Dojchinovski, Julia Bosque Gil, Jorge Gracia, Ranka Stanković (2021)
    Prva škola za obuku polaznika koju je organizovala COST akcija NexusLinguarum održana je od 8. do 12. februara 2021. godine sa ciljem da studenti, istraživači i stručnjaci nauče osnove lingvističke nauke o podacima. Tokom obuke polaznici su se upoznali sa širokim spektrom tema: od semantičkog veba, RDF -a i ontologija, do modeliranja i pretraživanja jezičkih podataka pomoću najsavremenijih ontoloških modela i alata. Škola je održana u okviru serije letnjih škola EUROLAN-a i organizovalo ju je virtuelno (onlajn) nekoliko instituta; ...
    nauka o lingvističkim podacima, povezani podaci u lingvistici, jezički podaci, EUROLAN, NexusLinguarum, COST akcija, škola za obuku
    ... blocks in the envisioned multilingual and interoperable web- oriented ecosystem. The present contribution summarises the organisation, content and results of this training school and is based on Deliverable D1.13 of the Action. 2 The training school program The training school has been developed for ...
    ... from Semantic Web, RDF and on- tologies, to modeling and querying linguis- tic data with state-of-the-art ontology mod- els and tools. The training school was orga- nized under the umbrella of the EUROLAN series of summer schools and was hosted vir- tually (online) by several institutions: the Ro- manian ...
    ... Dha- naraj, James Hollenbach, Adam Lerer, and David Sheets. 2006. “Tab- ulator: Exploring and analyzing linked data on the semantic web.” In Proceedings of the 3rd international semantic web user interaction work- shop, 2006:159. Athens, Georgia. 20. Supporting material 118 Infotheca Vol. 21, No. 1, September ...

  • Bridging Computational Lexicography and Corpus Linguistics: A Query Extension for OntoLex-FrAC

    Christian Chiarcos, Ranka Stanković, Maxim Ionov, Gilles Sérasset (2024)
    OntoLex, dominantni standard zajednice za mašinski čitljive leksičke resurse u kontekstu RDF-a, Linked Data i tehnologija Semantičkog veba, trenutno se proširuje sa posebnim modulom za Frekvencije, Primere i Informacije zasnovane na Korpusu (OntoLex-FrAC). Predlažemo novi komponent za OntoLex-FrAC, koji se bavi inkorporacijom korpusnih upita za (a) povezivanje rečnika sa korpusnim mašinama, (b) omogućavanje RDF baziranih web servisa da dinamički razmenjuju korpusne upite i podatke odgovora, i (c) korišćenje konvencionalnih upitačkih jezika za formalizaciju unutrašnje strukture kolokacija, skica reči i ...
    standardizacija, digitalna leksikografija, OntoLex, upiti korpusa, povezani podaci, Lingvistički povezani otvoreni podaci

  • An aproach to Implementation of blended learning in a university setting

    Ivan Obradović, Ranka Stanković, Olivera Kitanović, Jelena Prodanović (2011)
    ... services enable transformation of the today's Web of information and data into the Web of knowledge – the Semantic Web [5]. As the main Semantic Web tool, ontologies can be integrated into repositories of learning objects to organize the different concepts covered by the resources stored in a so called ...
    ... information sharing between teachers and students and among students themselves. Besides chats and forums as the most widespread forms of interaction on the web, Moodle also offers the possibility of sending personal messages to users, akin to an internal e-mailing system. Finally, Moodle ...
    ... integrating multiple tutors on the web. Given that a Serbian thesaurus of geological terms is already developed (http://geoliss.ekoplan.gov.rs/term) and that it contains more than 3000 dictionary entries and the same number of English equivalents, and that the development of an ontology ...

  • Infotheca (Q25460443) in Wikidata

    Ranka Stanković, Lazar Davidović (2021)
    Vikipodaci su baza znanja Zadužbine Vikimedija koja predstavlja zajednički izvor različitih vrsta podataka koje koriste ne samo drugi Vikipedijini projekti, već sve više i brojne aplikacije semantičkog veba. U ovom radu ćemo prezentovati primer integracije Vikipodataka sa digitalnim bibliotekama i eksternim sistemima, kao i mogućnost ubrzanja pripreme i unosa podataka na primeru radova iz časopisa za digitalnu humanistiku Infoteka.
    semantički veb,otvoreni povezani podaci, vikpodaci,Infoteka, metapodaci časopisa
    ... 87–98 of many machine readable resources, like DBPedia,2 for example, relying on the standardized languages of the semantic web. The concept of the seman- tic web and open linked data technologies expand the traditional web by using a standard markup language and similar processing tools, where RDF (Resource ...
    ... Wikidata on the resources that can be used to corroborate the claims made in Wikidata, Wikipedia or elsewhere. At the time when we are inundated by false information on the web, proper corroboration of information by relevant sources certainly plays a key role. Since we wanted to automatize the process ...
    ... data on the web. The Scholia project3 (Nielsen, Mietchen, and Willighagen 2017) is one of the first comprehensive endeavours of its kind aimed at representing biblio- graphical data, scholarly profiles of authors and institutions using Wikidata. The results of this particular project and the availability ...

  • An Integrated Environment for Management and Exploitation of Linguistic Resources

    Ranka Stanković, Ivan Obradović (2009)
    ... in the text. The text in English is on the left hand side, and the corre- sponding text in Serbian on the right. Given the fact that the compound “poreska obaveza” was not in the dictionary of compounds, a straightforward gen- eration of its inflected forms was not possible. Thus the sys- ...
    ... application WS4QE applied on different resources: web, aligned text and spatial database. II.LINGUISTIC RESOURCES In this Section we offer a brief description of three most important linguistic resources for Serbian developed within the HLT Group. Namely, the system of morphological dic- tionaries of ...
    ... various tasks within the Group. Based on WS4LR, a web application named WS4QE (Workstation for Query Expansion) has further been devel- oped within the Group, with the aim of supporting the de- velopment and usage of linguistic resources for Serbian via the web. In parallel with ...

  • WebGIS Cadastre of Abandoned Mines in Autonomous Province of Vojvodina

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2015)
    ... INSPIRE implies the possibility of combining spatial data and web services from various sources throughout the European Union in a consistent way without specific human or hardware requirements, relying on EN ISO 19115 and EN ISO 19119 [3]. The GeoMine (USA) geoportal supports the decision-making ...
    ... commercial organizations, but not data related to user accounts and data dictionary. 3.3 Web application for textual (attribute) data Authorized users can use the protected part of the application on the following pages: Users, Industrial organizations, Registries, Abandoned facilities, Directories ...
    ... needed to create a web GIS application. WebGIS application Cadastre abandoned mines in Vojvodina is publicly available. A simple search panel enables retrieval of abandoned mines, and a systematized database is available that for the first time brought together all the available data on abandoned mines ...

  • Improvement of geodatabase queries within GeolISS

    Ranka Stanković (2008)
    ... software that make up the WS4LR system. The diagram on figure 4 demonstrates some components and their inter-relationships. The core of the system WS4LR_Core is used by two components: the stand-alone Windows application WS4LR.exe and the web service wsQueryExpand.asmx. Web application WS4QE.aspx manages ...
    ... with accompanying web services, which provide for management of tasks on the web. Figure 5. WS4LR component diagram Ranka Stanković 71 WS4LR, written in C#, is organized in modules which perform different functions. A Component diagram (Fig. 4) illustrates the pieces of software ...
    ... can be applied on TXM documents in order to retrieve aligned segments that correspond to search criteria in the source and target language. A filtered TMX document is transformed into XML, TXT and HTML output files by XSLT transformations. The developed web application receives the user query, and ...

  • A WebGIS Decision Support System for Management of Abandoned Mines

    Ranka Stanković, Nikola Vulović, Nikola Lilić, Ivan Obradović, Radule Tošović, Milica Pešić-Georgiadis (2016)
    ... applications. Figure 9. The web GIS services published on GeoServer. Open Geospatial Consortium (OGC) is the main international and industrial organization for standardization in the field of geospatial data. Web Map Service (WMS) is an OGC standard and at the same time the most popular and most widely ...
    ... abandoned mines index, name of the object or settlement or district where abandoned mines are located. Search results are displayed in a pop-up window on the map. For each search result, detailed information about the selected object can be viewed on a separate web page. The multimedia gallery of abandoned ...
    ... as well as web search and visualization [25]. With regard to the objective and purpose of the research, the method of remote sensing was used to extract potential areas of anthropogenic impacts on the territory of Vojvodina, using morphological indicators of anthropogenic influence as the main criteria ...

  • Srbija u OneGeology Europe

    Danka Blagojević, Ranka Stanković, Petar Stejić, Velizar Nikolić (2014)
    Геолошки завод Србије као носилац Пројекта ОneGeologyEurope заједно са Рударско геолошким факултетом и Министарством за природне ресурсе, рударство и просторно планирање су се укључили у међународни Пројекат OneGeology Europe у мају 2013. године у већ поодмаклој фази израде Пројекта. До краја 2013. године испунили су завршене активности које треба да доведу до пуноправног укључења у Пројекат чиме је Република Србија нашла своје место на Геолошкој карти Европе 1:1М. Геолошка карта Србије 1:1М представља компилациону односно поједностављену верзију ОГК 1:500 ...
    OneGeologyEurope, метаподаци, хармонизација података, вишејезични мета-информациони систем
    ... strips on the generated map. Web services are hosted on the server http://gzs.rgf.rs/ at the Faculty of Mining and Geology, and after providing the technological requirements for the Geological Survey of Serbia, services will be transferred and service metadata URL will be updated in the metadata ...
    ... geological strips on the generated map. Web services are hosted on the server http://gzs.rgf.rs/ at the Faculty of Mining and Geology, and after providing the technological requirements for the Geological Survey of Serbia, services will be transferred and service metadata URL will be updated in the metadata catalog ...
    ... coverage data. SLD addresses the need for users and software to be able to control the visual portrayal of the geospatial data. SLD provides the users: people and software agents (web services) the chance to control the visual display of the geospatial data. For the purpose of these maps, 1G styles ...