{"id":"https://openalex.org/W1579989910","doi":"https://doi.org/10.3233/978-1-60750-061-2-74","title":"A First Approach to Activity Recognition using Topic Models","display_name":"A First Approach to Activity Recognition using Topic Models","publication_year":2009,"publication_date":"2009-01-01","ids":{"openalex":"https://openalex.org/W1579989910","doi":"https://doi.org/10.3233/978-1-60750-061-2-74","mag":"1579989910"},"language":"en","primary_location":{"id":"doi:10.3233/978-1-60750-061-2-74","is_oa":false,"landing_page_url":"https://doi.org/10.3233/978-1-60750-061-2-74","pdf_url":null,"source":{"id":"https://openalex.org/S4210201731","display_name":"Frontiers in artificial intelligence and applications","issn_l":"0922-6389","issn":["0922-6389","1879-8314"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers in Artificial Intelligence and Applications","raw_type":"book-chapter"},"type":"book-chapter","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":null,"display_name":"Casale Pierluigi","orcid":null},"institutions":[{"id":"https://openalex.org/I71999127","display_name":"Universitat de Barcelona","ror":"https://ror.org/021018s57","country_code":"ES","type":"education","lineage":["https://openalex.org/I71999127"]}],"countries":["ES"],"is_corresponding":true,"raw_author_name":"Casale Pierluigi","raw_affiliation_strings":["Computer Vision Center, Bellaterra, Spain and Dep. of Applied Mathematics and Analysis, University of Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Vision Center, Bellaterra, Spain and Dep. of Applied Mathematics and Analysis, University of Barcelona, Spain","institution_ids":["https://openalex.org/I71999127"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Pujol Oriol","orcid":null},"institutions":[{"id":"https://openalex.org/I71999127","display_name":"Universitat de Barcelona","ror":"https://ror.org/021018s57","country_code":"ES","type":"education","lineage":["https://openalex.org/I71999127"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Pujol Oriol","raw_affiliation_strings":["Computer Vision Center, Bellaterra, Spain and Dep. of Applied Mathematics and Analysis, University of Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Vision Center, Bellaterra, Spain and Dep. of Applied Mathematics and Analysis, University of Barcelona, Spain","institution_ids":["https://openalex.org/I71999127"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083867344","display_name":"Petia Radeva","orcid":"https://orcid.org/0000-0003-0047-5172"},"institutions":[{"id":"https://openalex.org/I71999127","display_name":"Universitat de Barcelona","ror":"https://ror.org/021018s57","country_code":"ES","type":"education","lineage":["https://openalex.org/I71999127"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Radeva Petia","raw_affiliation_strings":["Computer Vision Center, Bellaterra, Spain and Dep. of Applied Mathematics and Analysis, University of Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Vision Center, Bellaterra, Spain and Dep. of Applied Mathematics and Analysis, University of Barcelona, Spain","institution_ids":["https://openalex.org/I71999127"]}]},{"author_position":"last","author":{"id":null,"display_name":"Vitrià Jordi","orcid":null},"institutions":[{"id":"https://openalex.org/I71999127","display_name":"Universitat de Barcelona","ror":"https://ror.org/021018s57","country_code":"ES","type":"education","lineage":["https://openalex.org/I71999127"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Vitrià Jordi","raw_affiliation_strings":["Computer Vision Center, Bellaterra, Spain and Dep. of Applied Mathematics and Analysis, University of Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Computer Vision Center, Bellaterra, Spain and Dep. of Applied Mathematics and Analysis, University of Barcelona, Spain","institution_ids":["https://openalex.org/I71999127"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I71999127"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.0815732,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"74","last_page":"82"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T11980","display_name":"Human Mobility and Location-Based Analysis","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/3313","display_name":"Transportation"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12205","display_name":"Time Series Analysis and Forecasting","score":0.9937999844551086,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T11719","display_name":"Data Quality and Management","score":0.9921000003814697,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.45999467372894287},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.34400859475135803}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.45999467372894287},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.34400859475135803}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.3233/978-1-60750-061-2-74","is_oa":false,"landing_page_url":"https://doi.org/10.3233/978-1-60750-061-2-74","pdf_url":null,"source":{"id":"https://openalex.org/S4210201731","display_name":"Frontiers in artificial intelligence and applications","issn_l":"0922-6389","issn":["0922-6389","1879-8314"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Frontiers in Artificial Intelligence and Applications","raw_type":"book-chapter"},{"id":"mag:1579989910","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":null,"raw_source_name":null,"raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1880262756","https://openalex.org/W2056443530","https://openalex.org/W2067191022","https://openalex.org/W2099336098","https://openalex.org/W2127218421","https://openalex.org/W2131709365","https://openalex.org/W2142556291","https://openalex.org/W2143554828"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":{"In":[0],"this":[1],"work,":[2],"we":[3,25,28],"present":[4],"a":[5,22,38,58],"first":[6],"approach":[7],"to":[8,57],"activity":[9,64],"patterns":[10],"discovery":[11],"by":[12],"mean":[13],"of":[14,41,50],"topic":[15,42],"models.":[16,43],"Using":[17],"motion":[18],"data":[19,32],"collected":[20],"with":[21],"wearable":[23],"device":[24],"prototype,":[26],"TheBadge,":[27],"analyse":[29],"raw":[30],"accelerometer":[31],"using":[33],"Latent":[34],"Dirichlet":[35],"Allocation":[36],"(LDA),":[37],"particular":[39,48],"instantiation":[40],"Results":[44],"show":[45],"that":[46],"for":[47,54],"values":[49],"the":[51],"parameters":[52],"necessary":[53],"applying":[55],"LDA":[56],"countinous":[59],"dataset,":[60],"good":[61],"accuracies":[62],"in":[63],"classification":[65],"can":[66],"be":[67],"achieved.":[68]},"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2016-06-24T00:00:00"}