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Упит dcterms_subject_txt:Query expansion

118 items

  • A Tool for Enhanced Search of Multilingual Digital Libraries of E-journals

    Ranka Stanković, Cvetana Krstev, Ivan Obradović, Aleksandra Trtovac, Miloš Utvić (2012)
    This paper outlines the main features of Bibliša, a tool that offers various possibilities of enhancing queries submitted to large collections of TMX documents generated from aligned parallel articles residing in multilingual digital libraries of e-journals. The queries initiated by a simple or multiword keyword, in Serbian or English, can be expanded by Bibliša, both semantically and morphologically, using different supporting monolingual and multilingual resources, such as wordnets and electronic dictionaries. The tool operates within a complex system composed ...
    multilingual digital libraries, query expansion, TMX
    ... forwarded for further morphological and semantic expansion, depending on the user’s preferences. Query expansion is basically handled by a web service (wsQueryExpand.asmx) and a web application (VebRanka). VebRanka, a workstation for query expansion, was developed as a web extension of our multipurpose ...
    ... task of query expansion on the web. The web service, which receives the query from the web application, invokes the function library (LeXimirCore), a component of LeXimir. The library uses lexical resources and Unitex (http://igm.univ-mlv.fr/~unitex) routines to perform an expansion of the ...
    ... morphological expansion of queries. As for semantic and bilingual expansion, the system relies on wordnets (Serbian and English at present) and a bilingual English/Serbian dictionary of Library and Information Science technology (see Section 4). Bibliša’s user formulates the initial query in the form ...

  • 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
    ... expand a given user query with a response from Vebran Web Services producing a new query with syntax acceptable by back-end query pro- cessors (OCWB/CQP and NoSketch Engine / Manatee). Figure 3. Query expansion architecture . 4.2 Morphological expansion Morphological query expansion is an alternative ...
    ... Измењено: 2023-10-14 04:09:03 Vebran Web Services for Corpus Query Expansion Ranka Stanković, Miloš Utvić Дигитални репозиторијум Рударско-геолошког факултета Универзитета у Београду [ДР РГФ] Vebran Web Services for Corpus Query Expansion | Ranka Stanković, Miloš Utvić | Infotheca | 2020 | | 10. ...
    ... срећу. This format is used for query expansion in digital libraries Romeka and Biblǐsa, since their query processors require such forms. Web search interfaces for OCWB and NoSketch Engine, CQPweb and Bonito respectively, have been adapted to accept and preprocess user query with an expanded syntax which ...

  • 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
    ... situation expending query with hypernym synsets can be useful. Figure 4. Hypernym/hyponym wordnet hierarchy of the Bulgarian synset {лодка:1, ладия:1}. The corresponding Serbian synset belongs to the similar tree. Figure 5 shows the query expansion form in which the original query brodić is expanded ...
    ... Figure 5. In the query expansion form a user can choose the type of semantic relation for the expansion and the length of the path with this relation she/he wishes to pursue. Since in this case bilingual search is initiated a user can perform the same semantic expansion for the second language ...
    ... nouns then query expansion with Prolex database offers more possibilities. Semantic relations incorporated in this database are adapted to proper names. Here, user can choose to expand his query both on the conceptual and the linguistic level. It can be seen in Figure 9 how a query launched ...

  • Production of morphological dictionaries of multi-word units using a multipurpose tool

    Ranka Stanković, Ivan Obradović, Cvetana Krstev, Duško Vitas (2011)
    The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...
    electronic dictionary, Serbian, morphology, inflection, multi-word units, noun phrases, query expansion
    ... The interface for query expansion has several levels of complexity in both releases (Windows i.e. standalone and web): the simplest includes only morphological expansion of a query, a more complex one adds synonyms, and the most complex level enables the user to expand his/her query in several ways ...
    ... ly generates the inflected forms. Query expansion in the web environment is implemented in a similar way, with different levels for expansion details. VeBrana accepts the query from the user and submits it to the local web service, which then expands the query and forwards it to the Google search ...
    ... ways. For instance, if the initial query is ‘marka’ and a user chooses to semantically expand his/her query with Serbian wordnet then the system will find, among others, two synsets with appropriate literals: {marka, zaštitni znak, brend} ‘trade name’ and {marka, poštanska marka} ‘postage stamp’ ...

  • Automatic construction of a morphological dictionary of multi-word units

    Cvetana Krstev, Ranka Stanković, Ivan Obradović, Duško Vitas, Miloš Utvić (2010)
    The development of a comprehensive morphological dictionary of multi-word units for Serbian is a very demanding task, due to the complexity of Serbian morphology. Manual production of such a dictionary proved to be extremely time-consuming. In this paper we present a procedure that automatically produces dictionary lemmas for a given list of multi-word units. To accomplish this task the procedure relies on data in e-dictionaries of Serbian simple words, which are already well developed. We also offer an evaluation ...
    electronic dictionary, Serbian, morphology, inflection, multiwordn units, noun phrases, query expansion
    ... dictionaries are handled in a different, database environment [13]. Another tool WS4QE (shortened for Work Station for Query Expansion) was developed on basis of LeXimir, and it enables expansion of queries submitted to the Google search engine [6]. Integrated lexical resources enable modifications of user ...
    ... same procedure is used for other languages. Key words: electronic dictionary, Serbian, morphology, inflection, multi- word units, noun phrases, query expansion 1 Introduction We have been developing morphological electronic dictionaries of Serbian for natural language processing for many years now. Our ...

  • 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
    ... components in case of semantic query expansion17, which may, but need not include morphological expansion. The class WNManager for the WordNet resources management provides a semantic expansion of a query that includes introducing literals from the selected synsets. Expansion with additional relations ...
    ... generate expanded query() display form() select l iterals for query() expanded query() find corrensponding synsets() [if morphological expansion not selected] generate literals in selected alphabets() find corresponding wordforms in selected alphabets() select multi l ingual expansion and resources() ...
    ... text and metadata search are customized 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 ...

  • 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
    ... user, when composing a query, might omit some words related to the concept, thus reducing system recall. A simple query expansion by adding the omitted words would seemingly resolve this problem. However, the expansion of the set of words describing a concept in a query, although contributing ...
    ... other relations included in SWN can also be used for the query expansion, for instance the keyword solarni sistem ‘solar system’ can be expanded by Merkur, Venera, Zemlja, Mars, etc. if meronymy is used for query expansion. 4. The expansion of proper names using Prolex which offers to the user ...
    ... 600 obtained by the unexpanded query (Figure 5). The expanded query once again doubled the number of documents obtained. Finally, a second query was performed for the word istraživač. This time a morphological expansion was performed and the semantic expansion omitted, but the extension to Cyrillic ...

  • Keyword-Based Search on Bilingual Digital Libraries

    Ranka Stanković, Cvetana Krstev, Duško Vitas, Nikola Vulović, Olivera Kitanović (2017)
    This paper outlines the main features of Biblisha, a tool that offers various possibilities of enhancing queries submitted to large collections of aligned parallel text residing in bilingual digital library. Biblishsa supports keyword queries as an intuitive way of specifying information needs. The keyword queries initiated, in Serbian or English, can be expanded, both semantically, morphologically and in other language, using different supporting monolingual and bilingual resources. Terminological and lexical resources are of various types, such as wordnets, electronic ...

  • An Integrated Environment for Management and Exploitation of Linguistic Resources

    Ranka Stanković, Ivan Obradović (2009)
    ... WS4QE has been developed, namely query expansion. It should be noted that a more adequate term might be query “refinement”. Namely, besides query expansion, WS4QE allows the user to choose, among the strings offered, the ones to be includ- ed in the query. This means that the user can ...
    ... application for query expansion [12]. In this Section we will offer a few examples demonstrating the pos- sibilities our integrated environment offers in different areas of application. A. Web search The problems in query formulation stem from the fact that the user formulating a query is most ...
    ... possibility to expand the query morphologically, semanti- cally, but also to another language (English). Besides, the user can further fine-tune query formulation, since in addi- tion to being expanded, the query can also be narrowed. Morphological expansion is based on the use of morpho- ...

  • GIS Application Improvement with Multilingual Lexical and Terminological Resources

    Ranka Stanković, Ivan Obradović, Olivera Kitanović (2010)
    ... play an important role in the query expansion application WS4QE, by enabling a more elaborate query expansion that can significantly improve retrieval performances. The use of transducers is especially important in the case of compounds. For instance, if a query is performed with the compound ...
    ... semantic expansion, the query for geological unit retrieval with the term ‘facie’ (‘facija’ in Serbian) in their description field was submitted twice: once without and once with semantic expansion. The first query contained only the word ‘facija’, whereas the second, expanded query included ...
    ... morphological expansion of queries, the latter being very important in highly inflective languages, such as Serbian. Multilingual map annotation is outlined in Section 4 and Query expansion in section 5. 2. GeolISS This system represents a repository for digital archiving, query, retrieving ...

  • Improvement of geodatabase queries within GeolISS

    Ranka Stanković (2008)
    ... service for query expansion 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. Morphological dictionaries enable morphological expansion of the query, very important ...
    ... obtained by the query, can be substantially improved by using various lexical resources, such as morphological dictionaries and a geological dictionary. These lexical resources used within WS4QE (Workstation for query expansion) enable semantic and morphological expansion of the query, the latter being ...
    ... GeolISS query expansion Having in mind the vast amount of textual data in GeolISS (observations, interpretations, field work day books, etc.), morphologic and semantic query expansion is implemented in GeolISS search functions. Apart from HLT lexical resources mentioned, for semantic query expansion ...

  • Hybrid model of evaluation of underground lead–zinc mine capacity expansion project using Monte Carlo simulation and fuzzy numbers

    Gligorić Zoran, Beljić Čedomir, Gluščević Branko, Jovanović Saša (2011)

  • The Nooj System as Module within an Integrated Language Processing Environment

    Ranka Stanković, Duško Vitas, Cvetana Krstev (2008)
    NooJ, electronic dictionary, lexical resources
    ... document 4.2. Query Expansion Query expansion is a name given to a class of techniques in which a query serving as input to a document retriever is evolved in some way with the intent to improve the document retriever's performance, according to some metric. Query expansion is particularly ...
    ... retrieval and related areas. If query is further combined with ILI, a multilingual wordnet pivot, the possibility of searching text resources (web, corpus, text) in different languages with a single query is opened. NooJ supports morphological query expansion and expansion of queries by graphs and ...
    ... components that provide a Boolean query model, because of the expressiveness of the syntax and ease of modifying existing queries. Query expansion is a technique used to boost performance of a document retrieval engine. Common methods of query expansion for Boolean keyword-based document ...

  • Managing mining project documentation using human language technology

    Aleksandra Tomašević, Ranka Stanković, Miloš Utvić, Ivan Obradović, Božo Kolonja (2018)
    Purpose: This paper aims to develop a system, which would enable efficient management and exploitation of documentation in electronic form, related to mining projects, with information retrieval and information extraction (IE) features, using various language resources and natural language processing. Design/methodology/approach: The system is designed to integrate textual, lexical, semantic and terminological resources, enabling advanced document search and extraction of information. These resources are integrated with a set of Web services and applications, for different user profiles and use-cases. Findings: The ...
    Digital libraries, Information retrieval, Data mining, Human language technologies, Project documentation

  • Bilingual lexical extraction based on word alignment for improving corpus search

    Jelena Andonovski, Branislava Šandrih, Olivera Kitanović (2019)
    Library and Information Sciences,Computer Science Applications

  • Softverski alati za korišćenje resursa za srpski jezik

    Ivan Obradović, Ranka Stanković (2008)
    ... namely query expansion. It should be noted that a more adequate term might be query “adjustment”. Namely, besides query expansion, a possibility of choosing the strings to be included in the query is offered to the user, which includes possible deletion of strings from the expanded query if the ...
    ... adjust- ing the query with the choice of concepts and keywords, the precision of the answer obtained for the query can be considerably improved. Figure 11. Combining semantic and morphological query expansion The possibility of combining semantic and morphological query expansion, coupled with ...
    ... search engines. Thus the “working” ac- ronym of this web application – WS4QE (Work- station for Query Expansion). The problem of query formulation stems from the fact that the use formulating the query is most often interested in documents related to a spe- cific concept, the way concepts are defined ...

  • Using Query Expansion for Cross-Lingual Mathematical Terminology Extraction

    Velislava Stoykova, Ranka Stanković (2018)

  • ‘Blue-’ and ‘Brown-speckled’ pottery from Qalhât, the Sultanate of Oman (13–16th centuries): Comparison with traditional Omani 19–20 century productions

    Liliana Gianni, Hélène Renel, Aleksandar Kremenović, Philippe Colomban (2020)
    Representative ‘Blue speckled’ (13–16th centuries) and ‘Brown speckled’ (13–21st century) wares recovered from the excavations in Qalhât or collected around Bahlâ city (Sultanate of Oman) were characterized by XRPD, SEM-EDS, Raman/optical microspectroscopy, and thermal expansion. Minerals present in the body (quartz, augite and albite as major phases, calcite, dolomite, rutile, anatase, phosphate, hematite and magnetite as minor phases) were identified by XRPD and/or Raman spectroscopy. SEM-EDXS microanalysis was performed on the glazes in order to compare their composition, especially ...
    Firing, Glaze, Traditional ceramics, Provenance studies, Augite

  • A bilingual digital library for academic and entrepreneurial knowledge management

    Ranka Stanković, Cvetana Krstev, Biljana Lazić, Dalibor Vorkapić (2015)
    A generic knowledge management process of organization, storage and retrieval of knowledge can suitably be fitted in a digital library. In the digital and knowledge age digital libraries can be used in knowledge management to handle intellectual assets and support knowledge creation. A multilingual digital library either stores content in more than one language or provides multilingual query access to monolingual content. In Serbia 18 of 308 scientific journals regularly published are bi-lingual, with papers simultaneously being in English ...
    Knowledge management, Digital library, Multilingualism, Language Resources, Terminology
    ... services Biblimir RudOnto GeolISSTerm E-dictionaries Grammers …. Vebran Semantical and multilingual query expansion Morphological query expansion LeXimir Keyword query expansion 7 http://geoliss ...
    ... resources of a query language and then finds their equivalents in another language based on inter- lingual relations established in the lexical resources. After refinement of a query (e.g. deleting or adding terms manually), the system performs semantic and multilingual query expansion. If the user ...
    ... specifies, Bibliša forwards this query for further morphological expansion, based on morphological e-dictionaries, the system of rules for multi-word inflection, and finite automata and transducers (Krstev et al, 2008; Krstev 2008). An example of query expansion will be presented in section 5.1 ...

  • Terminological and lexical resources used to provide open multilingual educational resources

    Biljana Lazić, Danica Seničić, Aleksandra Tomašević, Bojan Zlatić (2016)
    Open educational resources (OER) within BAEKTEL (Blending Academic and Entrepreneurial Knowledge in Technology enhanced learning) network will be available in different languages, mostly in the languages of Western Balkans, Russian and English. University of Belgrade (UB) hosts a central repository based on: BAEKTEL Metadata Portal (BMP), terminological web application for management, browse and search of terminological resources, web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), annotation of selected resources and OER repository on local edX ...
    otvoreni obrazovni resursi, leksički resursi, obrada prirodnih jezika, terminologija
    ... Portal (BMP), terminological web application for management, browse and search of terminological resources, web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), annotation of selected resources and OER repository on local edX platform. In order to successfully ...
    ... (BMP) ∑ terminological web application for management, browse and search of terminological resources, ∑ web services for linguistic support (query expansion, information retrieval, OER indexing, etc.), ∑ annotation of selected resources, ∑ OER repository on local edX platform. The BAEKTEL language ...
    ... lexical and textual resources (Image 1). 4. LEXICAL RESOURCES Morphological dictionaries are meant to be used by computers in the process of query expansion. Their usage is necessary because of the rich flexion of Serbian language and other similar languages of Western Balkans. Partners in BAEKTEL ...