{"id":"https://openalex.org/W3098177256","doi":"https://doi.org/10.1111/exsy.12641","title":"Topic identification of <scp>text\u2010based</scp> expert stock comments using multi\u2010level information fusion","display_name":"Topic identification of <scp>text\u2010based</scp> expert stock comments using multi\u2010level information fusion","publication_year":2020,"publication_date":"2020-10-13","ids":{"openalex":"https://openalex.org/W3098177256","doi":"https://doi.org/10.1111/exsy.12641","mag":"3098177256"},"language":"en","primary_location":{"id":"doi:10.1111/exsy.12641","is_oa":false,"landing_page_url":"https://doi.org/10.1111/exsy.12641","pdf_url":null,"source":{"id":"https://openalex.org/S72232612","display_name":"Expert Systems","issn_l":"0266-4720","issn":["0266-4720","1468-0394"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Expert Systems","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5079457723","display_name":"Feng Zhao","orcid":"https://orcid.org/0000-0003-2410-435X"},"institutions":[{"id":"https://openalex.org/I83776822","display_name":"Shandong Institute of Business and Technology","ror":"https://ror.org/03rrkrc24","country_code":"CN","type":"education","lineage":["https://openalex.org/I83776822"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Feng Zhao","raw_affiliation_strings":["School of Computer Science and Technology Shandong Technology and Business University  Yantai China","Shandong Co\u2010Innovation Center of Future Intelligent Computing  Yantai China","School of Computer Science and Technology, Shandong Technology and Business University, Yantai, China","Shandong Co-Innovation Center of Future Intelligent Computing, Yantai, China"],"raw_orcid":"https://orcid.org/0000-0003-2410-435X","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology Shandong Technology and Business University  Yantai China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"Shandong Co\u2010Innovation Center of Future Intelligent Computing  Yantai China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"School of Computer Science and Technology, Shandong Technology and Business University, Yantai, China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"Shandong Co-Innovation Center of Future Intelligent Computing, Yantai, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102745849","display_name":"Jiahui Zhang","orcid":"https://orcid.org/0000-0003-3499-5299"},"institutions":[{"id":"https://openalex.org/I83776822","display_name":"Shandong Institute of Business and Technology","ror":"https://ror.org/03rrkrc24","country_code":"CN","type":"education","lineage":["https://openalex.org/I83776822"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiahui Zhang","raw_affiliation_strings":["School of Computer Science and Technology Shandong Technology and Business University  Yantai China","Shandong Co\u2010Innovation Center of Future Intelligent Computing  Yantai China","Shandong Co-Innovation Center of Future Intelligent Computing, Yantai, China","School of Computer Science and Technology, Shandong Technology and Business University, Yantai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology Shandong Technology and Business University  Yantai China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"Shandong Co\u2010Innovation Center of Future Intelligent Computing  Yantai China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"Shandong Co-Innovation Center of Future Intelligent Computing, Yantai, China","institution_ids":[]},{"raw_affiliation_string":"School of Computer Science and Technology, Shandong Technology and Business University, Yantai, China","institution_ids":["https://openalex.org/I83776822"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100438512","display_name":"Zhiyuan Chen","orcid":"https://orcid.org/0000-0002-4915-1593"},"institutions":[{"id":"https://openalex.org/I83776822","display_name":"Shandong Institute of Business and Technology","ror":"https://ror.org/03rrkrc24","country_code":"CN","type":"education","lineage":["https://openalex.org/I83776822"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhiyuan Chen","raw_affiliation_strings":["School of Computer Science and Technology Shandong Technology and Business University  Yantai China","Shandong Co\u2010Innovation Center of Future Intelligent Computing  Yantai China","School of Computer Science and Technology, Shandong Technology and Business University, Yantai, China","Shandong Co-Innovation Center of Future Intelligent Computing, Yantai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology Shandong Technology and Business University  Yantai China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"Shandong Co\u2010Innovation Center of Future Intelligent Computing  Yantai China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"School of Computer Science and Technology, Shandong Technology and Business University, Yantai, China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"Shandong Co-Innovation Center of Future Intelligent Computing, Yantai, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100455674","display_name":"Xiaofeng Zhang","orcid":"https://orcid.org/0000-0002-9740-1796"},"institutions":[{"id":"https://openalex.org/I182707071","display_name":"Ludong University","ror":"https://ror.org/028h95t32","country_code":"CN","type":"education","lineage":["https://openalex.org/I182707071"]},{"id":"https://openalex.org/I83776822","display_name":"Shandong Institute of Business and Technology","ror":"https://ror.org/03rrkrc24","country_code":"CN","type":"education","lineage":["https://openalex.org/I83776822"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaofeng Zhang","raw_affiliation_strings":["School of Information and Electrical Engineering Ludong University  Yantai China","Shandong Co\u2010Innovation Center of Future Intelligent Computing  Yantai China","Shandong Co-Innovation Center of Future Intelligent Computing, Yantai, China","School of Information and Electrical Engineering, Ludong University, Yantai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Information and Electrical Engineering Ludong University  Yantai China","institution_ids":["https://openalex.org/I182707071"]},{"raw_affiliation_string":"Shandong Co\u2010Innovation Center of Future Intelligent Computing  Yantai China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"Shandong Co-Innovation Center of Future Intelligent Computing, Yantai, China","institution_ids":[]},{"raw_affiliation_string":"School of Information and Electrical Engineering, Ludong University, Yantai, China","institution_ids":["https://openalex.org/I182707071"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101854240","display_name":"Qingsong Xie","orcid":"https://orcid.org/0000-0003-4551-9650"},"institutions":[{"id":"https://openalex.org/I83776822","display_name":"Shandong Institute of Business and Technology","ror":"https://ror.org/03rrkrc24","country_code":"CN","type":"education","lineage":["https://openalex.org/I83776822"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Qingsong Xie","raw_affiliation_strings":["School of Computer Science and Technology Shandong Technology and Business University  Yantai China","Shandong Co\u2010Innovation Center of Future Intelligent Computing  Yantai China","Shandong Co-Innovation Center of Future Intelligent Computing, Yantai, China","School of Computer Science and Technology, Shandong Technology and Business University, Yantai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology Shandong Technology and Business University  Yantai China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"Shandong Co\u2010Innovation Center of Future Intelligent Computing  Yantai China","institution_ids":["https://openalex.org/I83776822"]},{"raw_affiliation_string":"Shandong Co-Innovation Center of Future Intelligent Computing, Yantai, China","institution_ids":[]},{"raw_affiliation_string":"School of Computer Science and Technology, Shandong Technology and Business University, Yantai, China","institution_ids":["https://openalex.org/I83776822"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5101854240"],"corresponding_institution_ids":["https://openalex.org/I83776822"],"apc_list":{"value":3860,"currency":"USD","value_usd":3860},"apc_paid":null,"fwci":0.5576,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.72645791,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"40","issue":"2","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11326","display_name":"Stock Market Forecasting Methods","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11326","display_name":"Stock Market Forecasting Methods","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T10047","display_name":"Financial Markets and Investment Strategies","score":0.9884999990463257,"subfield":{"id":"https://openalex.org/subfields/2003","display_name":"Finance"},"field":{"id":"https://openalex.org/fields/20","display_name":"Economics, Econometrics and Finance"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T13083","display_name":"Advanced Text Analysis Techniques","score":0.984499990940094,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8270777463912964},{"id":"https://openalex.org/keywords/feature-selection","display_name":"Feature selection","score":0.5378363132476807},{"id":"https://openalex.org/keywords/stock","display_name":"Stock (firearms)","score":0.5366435050964355},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.44914793968200684},{"id":"https://openalex.org/keywords/grasp","display_name":"GRASP","score":0.4433537721633911},{"id":"https://openalex.org/keywords/identification","display_name":"Identification (biology)","score":0.421121209859848},{"id":"https://openalex.org/keywords/investment-decisions","display_name":"Investment decisions","score":0.4163210391998291},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.39897093176841736},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.39800238609313965},{"id":"https://openalex.org/keywords/operations-research","display_name":"Operations research","score":0.3270142078399658},{"id":"https://openalex.org/keywords/finance","display_name":"Finance","score":0.1847156584262848}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8270777463912964},{"id":"https://openalex.org/C148483581","wikidata":"https://www.wikidata.org/wiki/Q446488","display_name":"Feature selection","level":2,"score":0.5378363132476807},{"id":"https://openalex.org/C204036174","wikidata":"https://www.wikidata.org/wiki/Q909380","display_name":"Stock (firearms)","level":2,"score":0.5366435050964355},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.44914793968200684},{"id":"https://openalex.org/C171268870","wikidata":"https://www.wikidata.org/wiki/Q1486676","display_name":"GRASP","level":2,"score":0.4433537721633911},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.421121209859848},{"id":"https://openalex.org/C2778865806","wikidata":"https://www.wikidata.org/wiki/Q6060850","display_name":"Investment decisions","level":3,"score":0.4163210391998291},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.39897093176841736},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.39800238609313965},{"id":"https://openalex.org/C42475967","wikidata":"https://www.wikidata.org/wiki/Q194292","display_name":"Operations research","level":1,"score":0.3270142078399658},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.1847156584262848},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.0},{"id":"https://openalex.org/C109574028","wikidata":"https://www.wikidata.org/wiki/Q647525","display_name":"Behavioral economics","level":2,"score":0.0},{"id":"https://openalex.org/C78519656","wikidata":"https://www.wikidata.org/wiki/Q101333","display_name":"Mechanical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1111/exsy.12641","is_oa":false,"landing_page_url":"https://doi.org/10.1111/exsy.12641","pdf_url":null,"source":{"id":"https://openalex.org/S72232612","display_name":"Expert Systems","issn_l":"0266-4720","issn":["0266-4720","1468-0394"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Expert Systems","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1681920267","display_name":"\u6d77\u6d0b\u6d6e\u6e38\u751f\u7269\u7c7b\u522b\u975e\u5747\u8861\u56fe\u50cf\u96c6\u7ec6\u7c92\u5ea6\u8bc6\u522b\u7814\u7a76","funder_award_id":"61972235","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2340832059","display_name":null,"funder_award_id":"61976125","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3827784445","display_name":null,"funder_award_id":"61773244","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G530001944","display_name":"\u80ba\u7ed3\u8282\u5efa\u6a21\u4e0e\u7279\u5f81\u5206\u6790\u5173\u952e\u6280\u672f\u7814\u7a76","funder_award_id":"61873117","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6095985124","display_name":"\u9762\u5411\u56fe\u50cf\u4e0e\u89c6\u9891\u7279\u5f81\u8868\u793a\u7684\u6df1\u5ea6\u7f16\u7801\u65b9\u6cd5\u7814\u7a76","funder_award_id":"61272319","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":32,"referenced_works":["https://openalex.org/W208911654","https://openalex.org/W756026453","https://openalex.org/W1502400145","https://openalex.org/W1543929407","https://openalex.org/W1963789760","https://openalex.org/W1966577984","https://openalex.org/W1966947440","https://openalex.org/W1968361347","https://openalex.org/W1980223370","https://openalex.org/W1981531537","https://openalex.org/W1983381518","https://openalex.org/W2015174807","https://openalex.org/W2024415908","https://openalex.org/W2025053102","https://openalex.org/W2030294385","https://openalex.org/W2032170121","https://openalex.org/W2042200090","https://openalex.org/W2045424838","https://openalex.org/W2076766162","https://openalex.org/W2094665138","https://openalex.org/W2095847349","https://openalex.org/W2108347737","https://openalex.org/W2112527634","https://openalex.org/W2149170345","https://openalex.org/W2153635508","https://openalex.org/W2162523902","https://openalex.org/W2164568552","https://openalex.org/W2171468534","https://openalex.org/W2186830126","https://openalex.org/W3121886485","https://openalex.org/W3122408111","https://openalex.org/W3125952890"],"related_works":["https://openalex.org/W2163296013","https://openalex.org/W165915117","https://openalex.org/W2326995835","https://openalex.org/W2743859443","https://openalex.org/W2059402478","https://openalex.org/W2123347777","https://openalex.org/W4387804363","https://openalex.org/W2477150073","https://openalex.org/W2019547100","https://openalex.org/W4387947522"],"abstract_inverted_index":{"Abstract":[0],"Stock":[1],"investment":[2,36,47],"is":[3,63,166,178],"an":[4,64],"important":[5,65],"mode":[6],"of":[7,14,22,33,54,81,109,175,185],"asset":[8],"allocation":[9],"and":[10,25,35,61],"a":[11,98,105,122,141],"crucial":[12],"means":[13],"financial":[15],"management.":[16],"How":[17],"to":[18,50,87,91,103,170,181],"grasp":[19],"the":[20,31,52,69,136,152,160],"movement":[21],"stock":[23,40,56,82,110,187],"price":[24],"predict":[26],"its":[27],"trend":[28],"have":[29],"been":[30],"focus":[32],"investors":[34],"companies.":[37],"Since":[38],"expert":[39,55,186],"comments":[41,57],"contain":[42],"abundant":[43],"essential":[44],"information":[45,100,163],"for":[46,78],"decisions,":[48],"how":[49],"identify":[51],"topic":[53,79,106],"with":[58,93],"high":[59],"precision":[60],"efficiency":[62],"research":[66],"topic.":[67],"However,":[68],"existing":[70],"methods":[71,120,172],"usually":[72],"employ":[73],"single":[74],"feature":[75,118],"selection":[76,119],"strategies":[77],"identification":[80,107],"comments,":[83],"which":[84,126,148],"may":[85],"lead":[86],"low":[88],"accuracy.":[89],"Thus,":[90],"deal":[92],"this":[94],"limitation,":[95],"we":[96,113,139],"propose":[97,140],"multi\u2010level":[99,162],"fusion":[101,142,164],"method":[102,165],"construct":[104],"system":[108],"comments.":[111,188],"Specifically,":[112],"firstly":[114],"fuse":[115],"various":[116],"complementary":[117],"via":[121],"multi\u2010view":[123],"learning":[124],"framework":[125],"can":[127,149],"comprehensively":[128],"represent":[129],"text\u2010based":[130],"topics.":[131],"In":[132],"addition":[133],",":[134],"regarding":[135],"decision":[137],"process,":[138],"strategy":[143],"based":[144],"on":[145],"belief":[146],"value":[147],"further":[150],"improve":[151],"classification":[153],"performance.":[154],"The":[155],"experimental":[156],"results":[157],"indicate":[158],"that":[159],"proposed":[161],"not":[167],"only":[168],"superior":[169],"other":[171],"in":[173],"terms":[174],"classification,":[176],"it":[177],"also":[179],"able":[180],"accurately":[182],"capture":[183],"topics":[184]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":3}],"updated_date":"2026-06-06T09:05:17.133730","created_date":"2025-10-10T00:00:00"}