{"id":"https://openalex.org/W2102380774","doi":"https://doi.org/10.1109/isspa.2007.4555345","title":"N-gram and Local Context Analysis for Persian text retrieval","display_name":"N-gram and Local Context Analysis for Persian text retrieval","publication_year":2007,"publication_date":"2007-02-01","ids":{"openalex":"https://openalex.org/W2102380774","doi":"https://doi.org/10.1109/isspa.2007.4555345","mag":"2102380774"},"language":"en","primary_location":{"id":"doi:10.1109/isspa.2007.4555345","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isspa.2007.4555345","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2007 9th International Symposium on Signal Processing and Its Applications","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":null,"any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5035988787","display_name":"Abolfazl AleAhmad","orcid":null},"institutions":[{"id":"https://openalex.org/I23946033","display_name":"University of Tehran","ror":"https://ror.org/05vf56z40","country_code":"IR","type":"education","lineage":["https://openalex.org/I23946033"]}],"countries":["IR"],"is_corresponding":true,"raw_author_name":"Abolfazl Aleahmad","raw_affiliation_strings":["Electrical and Computer Engineering Department, University of Tehran, Iran","[Electr. & Comput. Eng. Dept., Univ. of Tehran, Tehran]"],"affiliations":[{"raw_affiliation_string":"Electrical and Computer Engineering Department, University of Tehran, Iran","institution_ids":["https://openalex.org/I23946033"]},{"raw_affiliation_string":"[Electr. & Comput. Eng. Dept., Univ. of Tehran, Tehran]","institution_ids":["https://openalex.org/I23946033"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084078608","display_name":"Parsia Hakimian","orcid":null},"institutions":[{"id":"https://openalex.org/I23946033","display_name":"University of Tehran","ror":"https://ror.org/05vf56z40","country_code":"IR","type":"education","lineage":["https://openalex.org/I23946033"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Parsia Hakimian","raw_affiliation_strings":["Electrical and Computer Engineering Department, University of Tehran, Iran","[Electr. & Comput. Eng. Dept., Univ. of Tehran, Tehran]"],"affiliations":[{"raw_affiliation_string":"Electrical and Computer Engineering Department, University of Tehran, Iran","institution_ids":["https://openalex.org/I23946033"]},{"raw_affiliation_string":"[Electr. & Comput. Eng. Dept., Univ. of Tehran, Tehran]","institution_ids":["https://openalex.org/I23946033"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034802353","display_name":"Farzad Mahdikhani","orcid":null},"institutions":[{"id":"https://openalex.org/I23946033","display_name":"University of Tehran","ror":"https://ror.org/05vf56z40","country_code":"IR","type":"education","lineage":["https://openalex.org/I23946033"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Farzad Mahdikhani","raw_affiliation_strings":["Electrical and Computer Engineering Department, University of Tehran, Iran","[Electr. & Comput. Eng. Dept., Univ. of Tehran, Tehran]"],"affiliations":[{"raw_affiliation_string":"Electrical and Computer Engineering Department, University of Tehran, Iran","institution_ids":["https://openalex.org/I23946033"]},{"raw_affiliation_string":"[Electr. & Comput. Eng. Dept., Univ. of Tehran, Tehran]","institution_ids":["https://openalex.org/I23946033"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5059134555","display_name":"Farhad Oroumchian","orcid":"https://orcid.org/0000-0001-7942-5965"},"institutions":[{"id":"https://openalex.org/I23946033","display_name":"University of Tehran","ror":"https://ror.org/05vf56z40","country_code":"IR","type":"education","lineage":["https://openalex.org/I23946033"]}],"countries":["IR"],"is_corresponding":false,"raw_author_name":"Farhad Oroumchian","raw_affiliation_strings":["Electrical and Computer Engineering Department, University of Tehran, Iran","[Electr. & Comput. Eng. Dept., Univ. of Tehran, Tehran]"],"affiliations":[{"raw_affiliation_string":"Electrical and Computer Engineering Department, University of Tehran, Iran","institution_ids":["https://openalex.org/I23946033"]},{"raw_affiliation_string":"[Electr. & Comput. Eng. Dept., Univ. of Tehran, Tehran]","institution_ids":["https://openalex.org/I23946033"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5035988787"],"corresponding_institution_ids":["https://openalex.org/I23946033"],"apc_list":null,"apc_paid":null,"fwci":7.7274,"has_fulltext":false,"cited_by_count":33,"citation_normalized_percentile":{"value":0.97122909,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"4"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10028","display_name":"Topic Modeling","score":0.9957000017166138,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10028","display_name":"Topic Modeling","score":0.9957000017166138,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11550","display_name":"Text and Document Classification Technologies","score":0.9955999851226807,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10286","display_name":"Information Retrieval and Search Behavior","score":0.9955000281333923,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/persian","display_name":"Persian","score":0.9291304349899292},{"id":"https://openalex.org/keywords/n-gram","display_name":"n-gram","score":0.8149257898330688},{"id":"https://openalex.org/keywords/weighting","display_name":"Weighting","score":0.6987379193305969},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.6551550626754761},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6543737649917603},{"id":"https://openalex.org/keywords/vector-space-model","display_name":"Vector space model","score":0.6312613487243652},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.5504124164581299},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.5170793533325195},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5124445557594299},{"id":"https://openalex.org/keywords/language-model","display_name":"Language model","score":0.45172446966171265},{"id":"https://openalex.org/keywords/context-analysis","display_name":"Context analysis","score":0.4170824885368347},{"id":"https://openalex.org/keywords/linguistics","display_name":"Linguistics","score":0.17933371663093567},{"id":"https://openalex.org/keywords/history","display_name":"History","score":0.1268291473388672},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.06558346748352051}],"concepts":[{"id":"https://openalex.org/C2776527531","wikidata":"https://www.wikidata.org/wiki/Q9168","display_name":"Persian","level":2,"score":0.9291304349899292},{"id":"https://openalex.org/C117884012","wikidata":"https://www.wikidata.org/wiki/Q94489","display_name":"n-gram","level":3,"score":0.8149257898330688},{"id":"https://openalex.org/C183115368","wikidata":"https://www.wikidata.org/wiki/Q856577","display_name":"Weighting","level":2,"score":0.6987379193305969},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.6551550626754761},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6543737649917603},{"id":"https://openalex.org/C89686163","wikidata":"https://www.wikidata.org/wiki/Q1187982","display_name":"Vector space model","level":2,"score":0.6312613487243652},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.5504124164581299},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.5170793533325195},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5124445557594299},{"id":"https://openalex.org/C137293760","wikidata":"https://www.wikidata.org/wiki/Q3621696","display_name":"Language model","level":2,"score":0.45172446966171265},{"id":"https://openalex.org/C52085439","wikidata":"https://www.wikidata.org/wiki/Q5165173","display_name":"Context analysis","level":3,"score":0.4170824885368347},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.17933371663093567},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.1268291473388672},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.06558346748352051},{"id":"https://openalex.org/C2778137410","wikidata":"https://www.wikidata.org/wiki/Q2732820","display_name":"Government (linguistics)","level":2,"score":0.0},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.0},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/isspa.2007.4555345","is_oa":false,"landing_page_url":"https://doi.org/10.1109/isspa.2007.4555345","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2007 9th International Symposium on Signal Processing and Its Applications","raw_type":"proceedings-article"},{"id":"pmh:oai:ro.uow.edu.au:dubaipapers-1009","is_oa":false,"landing_page_url":"https://ro.uow.edu.au/dubaipapers/10","pdf_url":null,"source":{"id":"https://openalex.org/S4306400510","display_name":"Research Online (University of Wollongong)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I204824540","host_organization_name":"University of Wollongong","host_organization_lineage":["https://openalex.org/I204824540"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"University of Wollongong in Dubai - Papers","raw_type":"presentation"},{"id":"pmh:oai:figshare.com:article/27770532","is_oa":true,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"}],"best_oa_location":{"id":"pmh:oai:figshare.com:article/27770532","is_oa":true,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4377196282","display_name":"Figshare","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210132348","host_organization_name":"Figshare (United Kingdom)","host_organization_lineage":["https://openalex.org/I4210132348"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},"sustainable_development_goals":[{"score":0.8100000023841858,"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W1484864540","https://openalex.org/W1608320902","https://openalex.org/W1660390307","https://openalex.org/W1681058265","https://openalex.org/W1979459060","https://openalex.org/W1985035366","https://openalex.org/W2000569744","https://openalex.org/W2002306339","https://openalex.org/W2089656898","https://openalex.org/W2101665961","https://openalex.org/W2106951288","https://openalex.org/W2113332050","https://openalex.org/W2154440221","https://openalex.org/W2292881587","https://openalex.org/W4231856373","https://openalex.org/W4234200495","https://openalex.org/W4285719527","https://openalex.org/W6636268891","https://openalex.org/W6696901431"],"related_works":["https://openalex.org/W2250909759","https://openalex.org/W2532616038","https://openalex.org/W2787311093","https://openalex.org/W155946694","https://openalex.org/W1555968995","https://openalex.org/W4307474317","https://openalex.org/W2147879411","https://openalex.org/W2624072012","https://openalex.org/W2057384730","https://openalex.org/W2008468404"],"abstract_inverted_index":{"The":[0],"Persian":[1,16,31,80,112],"language":[2],"is":[3],"one":[4],"of":[5,15,30],"the":[6,20,34,88,108],"languages":[7],"in":[8,33],"Middle-East,":[9],"so":[10,115],"there":[11,23],"are":[12,24],"significant":[13],"amount":[14],"documents":[17,32],"available":[18],"on":[19,28,62,79],"Web.":[21],"But":[22],"relatively":[25],"few":[26],"studies":[27],"retrieval":[29,114],"literature.":[35],"In":[36],"this":[37],"experimental":[38,83],"study,":[39],"we":[40,71],"assessed":[41,89],"term":[42],"and":[43,49,103],"N-gram":[44],"based":[45,92],"vector":[46,93],"space":[47,94],"model":[48,95],"a":[50,63],"query":[51],"expansion":[52],"method,":[53],"namely,":[54],"local":[55],"context":[56,105],"analysis":[57,106],"using":[58],"different":[59],"weighting":[60,98],"schemes":[61],"realistic":[64],"corpus":[65],"containing":[66],"160000+":[67],"news":[68],"articles.":[69],"Then":[70],"compared":[72],"our":[73],"results":[74,84],"with":[75,96],"previous":[76],"works":[77],"reported":[78],"language.":[81],"Our":[82],"show":[85],"that":[86],"among":[87],"methods,":[90],"4-gram":[91],"Lnu.ltu":[97],"scheme":[99],"has":[100,107],"acceptable":[101],"performance":[102,110],"Local":[104],"best":[109],"for":[111],"text":[113],"far.":[116]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":4},{"year":2012,"cited_by_count":3}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}