{"id":"https://openalex.org/W1971137706","doi":"https://doi.org/10.1145/2505515.2507820","title":"Motif discovery in spatial trajectories using grammar inference","display_name":"Motif discovery in spatial trajectories using grammar inference","publication_year":2013,"publication_date":"2013-10-27","ids":{"openalex":"https://openalex.org/W1971137706","doi":"https://doi.org/10.1145/2505515.2507820","mag":"1971137706"},"language":"en","primary_location":{"id":"doi:10.1145/2505515.2507820","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2505515.2507820","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 22nd ACM international conference on Information & Knowledge Management","raw_type":"proceedings-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/A5114778025","display_name":"Tim Oates","orcid":"https://orcid.org/0000-0002-8655-747X"},"institutions":[{"id":"https://openalex.org/I79272384","display_name":"University of Maryland, Baltimore County","ror":"https://ror.org/02qskvh78","country_code":"US","type":"education","lineage":["https://openalex.org/I79272384"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Tim Oates","raw_affiliation_strings":["University of Maryland Baltimore County, Baltimore, MD, USA","University of Maryland Baltimore County, baltimore, MD, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"University of Maryland Baltimore County, Baltimore, MD, USA","institution_ids":["https://openalex.org/I79272384"]},{"raw_affiliation_string":"University of Maryland Baltimore County, baltimore, MD, USA#TAB#","institution_ids":["https://openalex.org/I79272384"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5033884416","display_name":"Arnold P. Boedihardjo","orcid":null},"institutions":[{"id":"https://openalex.org/I1306490931","display_name":"United States Army Corps of Engineers","ror":"https://ror.org/05w4e8v21","country_code":"US","type":"funder","lineage":["https://openalex.org/I1304082316","https://openalex.org/I1306490931","https://openalex.org/I1330347796"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Arnold P. Boedihardjo","raw_affiliation_strings":["U.S. Army Corps of Engineers, Alexandria, VA, USA","U. S. Army Corps of Engineers, Alexandria, VA, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"U.S. Army Corps of Engineers, Alexandria, VA, USA","institution_ids":["https://openalex.org/I1306490931"]},{"raw_affiliation_string":"U. S. Army Corps of Engineers, Alexandria, VA, USA#TAB#","institution_ids":["https://openalex.org/I1306490931"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101558875","display_name":"Jessica Lin","orcid":"https://orcid.org/0000-0002-4887-0692"},"institutions":[{"id":"https://openalex.org/I162714631","display_name":"George Mason University","ror":"https://ror.org/02jqj7156","country_code":"US","type":"education","lineage":["https://openalex.org/I162714631"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Jessica Lin","raw_affiliation_strings":["George Mason University, Fairfax, VA, USA"],"affiliations":[{"raw_affiliation_string":"George Mason University, Fairfax, VA, USA","institution_ids":["https://openalex.org/I162714631"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5108652212","display_name":"Crystal Chen","orcid":null},"institutions":[{"id":"https://openalex.org/I1306490931","display_name":"United States Army Corps of Engineers","ror":"https://ror.org/05w4e8v21","country_code":"US","type":"funder","lineage":["https://openalex.org/I1304082316","https://openalex.org/I1306490931","https://openalex.org/I1330347796"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Crystal Chen","raw_affiliation_strings":["U.S. Army Corps of Engineers, Alexandria, VA, USA","U. S. Army Corps of Engineers, Alexandria, VA, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"U.S. Army Corps of Engineers, Alexandria, VA, USA","institution_ids":["https://openalex.org/I1306490931"]},{"raw_affiliation_string":"U. S. Army Corps of Engineers, Alexandria, VA, USA#TAB#","institution_ids":["https://openalex.org/I1306490931"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5012290838","display_name":"Susan Frankenstein","orcid":null},"institutions":[{"id":"https://openalex.org/I1306490931","display_name":"United States Army Corps of Engineers","ror":"https://ror.org/05w4e8v21","country_code":"US","type":"funder","lineage":["https://openalex.org/I1304082316","https://openalex.org/I1306490931","https://openalex.org/I1330347796"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Susan Frankenstein","raw_affiliation_strings":["U.S. Army Corps of Engineers, Hanover, NH, USA","U.S. Army Corps of Engineers, Hanover, NH, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"U.S. Army Corps of Engineers, Hanover, NH, USA","institution_ids":["https://openalex.org/I1306490931"]},{"raw_affiliation_string":"U.S. Army Corps of Engineers, Hanover, NH, USA#TAB#","institution_ids":["https://openalex.org/I1306490931"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5044136768","display_name":"Sunil Gandhi","orcid":"https://orcid.org/0000-0001-9493-2340"},"institutions":[{"id":"https://openalex.org/I79272384","display_name":"University of Maryland, Baltimore County","ror":"https://ror.org/02qskvh78","country_code":"US","type":"education","lineage":["https://openalex.org/I79272384"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Sunil Gandhi","raw_affiliation_strings":["University of Maryland Baltimore County, Baltimore, MD, USA","University of Maryland Baltimore County, baltimore, MD, USA#TAB#"],"affiliations":[{"raw_affiliation_string":"University of Maryland Baltimore County, Baltimore, MD, USA","institution_ids":["https://openalex.org/I79272384"]},{"raw_affiliation_string":"University of Maryland Baltimore County, baltimore, MD, USA#TAB#","institution_ids":["https://openalex.org/I79272384"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5114778025"],"corresponding_institution_ids":["https://openalex.org/I79272384"],"apc_list":null,"apc_paid":null,"fwci":0.9576,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.73111163,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"1465","last_page":"1468"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9991000294685364,"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"}},"topics":[{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9991000294685364,"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/T12205","display_name":"Time Series Analysis and Forecasting","score":0.9983000159263611,"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/T11309","display_name":"Music and Audio Processing","score":0.9909999966621399,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/grammar-induction","display_name":"Grammar induction","score":0.7893450260162354},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7843114137649536},{"id":"https://openalex.org/keywords/inference","display_name":"Inference","score":0.6984192132949829},{"id":"https://openalex.org/keywords/trajectory","display_name":"Trajectory","score":0.6887532472610474},{"id":"https://openalex.org/keywords/grammar","display_name":"Grammar","score":0.5851291418075562},{"id":"https://openalex.org/keywords/motif","display_name":"Motif (music)","score":0.5599152445793152},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5527059435844421},{"id":"https://openalex.org/keywords/visualization","display_name":"Visualization","score":0.5260636210441589},{"id":"https://openalex.org/keywords/rule-based-machine-translation","display_name":"Rule-based machine translation","score":0.45841097831726074},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.40009981393814087},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.3985486328601837},{"id":"https://openalex.org/keywords/linguistics","display_name":"Linguistics","score":0.078144371509552}],"concepts":[{"id":"https://openalex.org/C56601403","wikidata":"https://www.wikidata.org/wiki/Q5593673","display_name":"Grammar induction","level":3,"score":0.7893450260162354},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7843114137649536},{"id":"https://openalex.org/C2776214188","wikidata":"https://www.wikidata.org/wiki/Q408386","display_name":"Inference","level":2,"score":0.6984192132949829},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.6887532472610474},{"id":"https://openalex.org/C26022165","wikidata":"https://www.wikidata.org/wiki/Q8091","display_name":"Grammar","level":2,"score":0.5851291418075562},{"id":"https://openalex.org/C32276052","wikidata":"https://www.wikidata.org/wiki/Q908349","display_name":"Motif (music)","level":2,"score":0.5599152445793152},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5527059435844421},{"id":"https://openalex.org/C36464697","wikidata":"https://www.wikidata.org/wiki/Q451553","display_name":"Visualization","level":2,"score":0.5260636210441589},{"id":"https://openalex.org/C53893814","wikidata":"https://www.wikidata.org/wiki/Q7378909","display_name":"Rule-based machine translation","level":2,"score":0.45841097831726074},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.40009981393814087},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.3985486328601837},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.078144371509552},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","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":1,"locations":[{"id":"doi:10.1145/2505515.2507820","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2505515.2507820","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 22nd ACM international conference on Information & Knowledge Management","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4","score":0.7799999713897705}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W138607541","https://openalex.org/W1528765510","https://openalex.org/W1564649951","https://openalex.org/W1581745374","https://openalex.org/W1626398438","https://openalex.org/W1981398125","https://openalex.org/W1984525813","https://openalex.org/W2021348813","https://openalex.org/W2035068813","https://openalex.org/W2044023374","https://openalex.org/W2046466133","https://openalex.org/W2092386826","https://openalex.org/W2105686649","https://openalex.org/W2110707662","https://openalex.org/W2136317921","https://openalex.org/W2138745909","https://openalex.org/W2139644595","https://openalex.org/W2140251882","https://openalex.org/W2157325945","https://openalex.org/W2159772324","https://openalex.org/W2164274563","https://openalex.org/W2172017522","https://openalex.org/W2402068992","https://openalex.org/W2949549191","https://openalex.org/W3003570873","https://openalex.org/W3150887284","https://openalex.org/W6713398812"],"related_works":["https://openalex.org/W123468065","https://openalex.org/W1517025915","https://openalex.org/W4237776144","https://openalex.org/W1974236250","https://openalex.org/W3144287057","https://openalex.org/W2170837769","https://openalex.org/W1487802415","https://openalex.org/W2026740477","https://openalex.org/W1964225978","https://openalex.org/W2174380942"],"abstract_inverted_index":{"Spatial":[0],"trajectory":[1,56,76,85,110],"analysis":[2],"is":[3,98],"crucial":[4],"to":[5,48,83,100],"uncovering":[6],"insights":[7],"into":[8],"the":[9,21,63,71,92,102],"motives":[10],"and":[11,33,41,67,87,104,112],"nature":[12],"of":[13,23,73,106],"human":[14],"behavior.":[15],"In":[16],"this":[17],"work,":[18],"we":[19,61],"study":[20],"problem":[22],"discovering":[24,113],"motifs":[25],"in":[26],"trajectories":[27],"based":[28],"on":[29,91],"symbolically":[30],"transformed":[31],"representations":[32],"context":[34],"free":[35],"grammars.":[36],"We":[37],"propose":[38],"a":[39,50,55],"fast":[40],"robust":[42],"grammar":[43,51,81],"induction":[44],"algorithm":[45],"called":[46],"mSEQUITUR":[47,107],"infer":[49],"rule":[52],"set":[53],"from":[54],"for":[57,108],"motif":[58],"generation.":[59],"Second,":[60],"designed":[62],"Symbolic":[64],"Trajectory":[65],"Analysis":[66],"VIsualization":[68],"System":[69],"(STAVIS),":[70],"first":[72],"its":[74],"kind":[75],"analytical":[77],"system":[78],"that":[79],"applies":[80],"inference":[82],"derive":[84],"signatures":[86,111],"enable":[88],"mining":[89],"tasks":[90],"signatures.":[93],"Third,":[94],"an":[95],"empirical":[96],"evaluation":[97],"performed":[99],"demonstrate":[101],"efficiency":[103],"effectiveness":[105],"generating":[109],"motifs.":[114]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}