{"id":"https://openalex.org/W2041140023","doi":"https://doi.org/10.1007/s10115-004-0180-7","title":"Canonical forms for labelled trees and their applications in frequent subtree mining","display_name":"Canonical forms for labelled trees and their applications in frequent subtree mining","publication_year":2004,"publication_date":"2004-08-30","ids":{"openalex":"https://openalex.org/W2041140023","doi":"https://doi.org/10.1007/s10115-004-0180-7","mag":"2041140023"},"language":"en","primary_location":{"id":"doi:10.1007/s10115-004-0180-7","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s10115-004-0180-7","pdf_url":null,"source":{"id":"https://openalex.org/S81770430","display_name":"Knowledge and Information Systems","issn_l":"0219-1377","issn":["0219-1377","0219-3116"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Knowledge and Information 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/A5075969864","display_name":"Y\u00fcn Chi","orcid":"https://orcid.org/0000-0002-8441-3974"},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Yun Chi","raw_affiliation_strings":["Department of Computer Science, University of California, Los Angeles, CA, 90095, USA","Department of Computer Science, University of California, 90095, Los Angeles, CA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of California, Los Angeles, CA, 90095, USA","institution_ids":["https://openalex.org/I161318765"]},{"raw_affiliation_string":"Department of Computer Science, University of California, 90095, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I161318765"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109444205","display_name":"Yirong Yang","orcid":null},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yirong Yang","raw_affiliation_strings":["Department of Computer Science, University of California, Los Angeles, CA, 90095, USA","Department of Computer Science, University of California, 90095, Los Angeles, CA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of California, Los Angeles, CA, 90095, USA","institution_ids":["https://openalex.org/I161318765"]},{"raw_affiliation_string":"Department of Computer Science, University of California, 90095, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I161318765"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5113699788","display_name":"Richard R. Muntz","orcid":null},"institutions":[{"id":"https://openalex.org/I161318765","display_name":"University of California, Los Angeles","ror":"https://ror.org/046rm7j60","country_code":"US","type":"education","lineage":["https://openalex.org/I161318765"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Richard R. Muntz","raw_affiliation_strings":["Department of Computer Science, University of California, Los Angeles, CA, 90095, USA","Department of Computer Science, University of California, 90095, Los Angeles, CA, USA"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of California, Los Angeles, CA, 90095, USA","institution_ids":["https://openalex.org/I161318765"]},{"raw_affiliation_string":"Department of Computer Science, University of California, 90095, Los Angeles, CA, USA","institution_ids":["https://openalex.org/I161318765"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5075969864"],"corresponding_institution_ids":["https://openalex.org/I161318765"],"apc_list":{"value":2290,"currency":"EUR","value_usd":2890},"apc_paid":null,"fwci":5.4295,"has_fulltext":false,"cited_by_count":90,"citation_normalized_percentile":{"value":0.96132135,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"8","issue":"2","first_page":"203","last_page":"234"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9998999834060669,"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":0.9998999834060669,"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/T10538","display_name":"Data Mining Algorithms and Applications","score":0.9995999932289124,"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"}},{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9965999722480774,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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/enumeration","display_name":"Enumeration","score":0.7599936723709106},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6532193422317505},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.6505385637283325},{"id":"https://openalex.org/keywords/tree","display_name":"Tree (set theory)","score":0.6500325798988342},{"id":"https://openalex.org/keywords/canonical-form","display_name":"Canonical form","score":0.6309938430786133},{"id":"https://openalex.org/keywords/xml","display_name":"XML","score":0.5529744625091553},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.47512370347976685},{"id":"https://openalex.org/keywords/search-tree","display_name":"Search tree","score":0.4596824645996094},{"id":"https://openalex.org/keywords/tree-structure","display_name":"Tree structure","score":0.44098901748657227},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.40759867429733276},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.33056640625},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.30856451392173767},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.2362411618232727},{"id":"https://openalex.org/keywords/database","display_name":"Database","score":0.20070958137512207},{"id":"https://openalex.org/keywords/search-algorithm","display_name":"Search algorithm","score":0.17496824264526367},{"id":"https://openalex.org/keywords/binary-tree","display_name":"Binary tree","score":0.13437116146087646}],"concepts":[{"id":"https://openalex.org/C156340839","wikidata":"https://www.wikidata.org/wiki/Q2704791","display_name":"Enumeration","level":2,"score":0.7599936723709106},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6532193422317505},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6505385637283325},{"id":"https://openalex.org/C113174947","wikidata":"https://www.wikidata.org/wiki/Q2859736","display_name":"Tree (set theory)","level":2,"score":0.6500325798988342},{"id":"https://openalex.org/C204707403","wikidata":"https://www.wikidata.org/wiki/Q1152398","display_name":"Canonical form","level":2,"score":0.6309938430786133},{"id":"https://openalex.org/C8797682","wikidata":"https://www.wikidata.org/wiki/Q2115","display_name":"XML","level":2,"score":0.5529744625091553},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.47512370347976685},{"id":"https://openalex.org/C207024777","wikidata":"https://www.wikidata.org/wiki/Q621673","display_name":"Search tree","level":3,"score":0.4596824645996094},{"id":"https://openalex.org/C163797641","wikidata":"https://www.wikidata.org/wiki/Q2067937","display_name":"Tree structure","level":3,"score":0.44098901748657227},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.40759867429733276},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.33056640625},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.30856451392173767},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.2362411618232727},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.20070958137512207},{"id":"https://openalex.org/C125583679","wikidata":"https://www.wikidata.org/wiki/Q755673","display_name":"Search algorithm","level":2,"score":0.17496824264526367},{"id":"https://openalex.org/C197855036","wikidata":"https://www.wikidata.org/wiki/Q380172","display_name":"Binary tree","level":2,"score":0.13437116146087646},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/s10115-004-0180-7","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s10115-004-0180-7","pdf_url":null,"source":{"id":"https://openalex.org/S81770430","display_name":"Knowledge and Information Systems","issn_l":"0219-1377","issn":["0219-1377","0219-3116"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319900","host_organization_name":"Springer Science+Business Media","host_organization_lineage":["https://openalex.org/P4310319900","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Science+Business Media","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Knowledge and Information Systems","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.72.5137","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.72.5137","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.nec-labs.com/~ychi/publication/kais05_canonical.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":41,"referenced_works":["https://openalex.org/W1521063","https://openalex.org/W56896489","https://openalex.org/W1121883017","https://openalex.org/W1484413656","https://openalex.org/W1494160116","https://openalex.org/W1506285740","https://openalex.org/W1514542003","https://openalex.org/W1520566981","https://openalex.org/W1559144499","https://openalex.org/W1580557562","https://openalex.org/W1581082785","https://openalex.org/W1602595918","https://openalex.org/W1641749581","https://openalex.org/W1655990431","https://openalex.org/W1844644571","https://openalex.org/W1882453461","https://openalex.org/W1948092788","https://openalex.org/W1997276658","https://openalex.org/W2011039300","https://openalex.org/W2030766291","https://openalex.org/W2032226242","https://openalex.org/W2047715328","https://openalex.org/W2050137450","https://openalex.org/W2086974119","https://openalex.org/W2100588761","https://openalex.org/W2108150886","https://openalex.org/W2118349699","https://openalex.org/W2122303450","https://openalex.org/W2136593687","https://openalex.org/W2141115288","https://openalex.org/W2144903778","https://openalex.org/W2147924997","https://openalex.org/W2156210689","https://openalex.org/W2170726034","https://openalex.org/W2476096155","https://openalex.org/W2495758475","https://openalex.org/W4241307704","https://openalex.org/W4241634004","https://openalex.org/W4250027622","https://openalex.org/W4254829975","https://openalex.org/W4285719527"],"related_works":["https://openalex.org/W2968666469","https://openalex.org/W2376256808","https://openalex.org/W4232075465","https://openalex.org/W2359095153","https://openalex.org/W2166955450","https://openalex.org/W2227684440","https://openalex.org/W2349743712","https://openalex.org/W1559350420","https://openalex.org/W1529499406","https://openalex.org/W2092152400"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":5},{"year":2019,"cited_by_count":4},{"year":2018,"cited_by_count":6},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":6},{"year":2014,"cited_by_count":5},{"year":2013,"cited_by_count":10},{"year":2012,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}