{"id":"https://openalex.org/W2170477095","doi":"https://doi.org/10.1145/1059513.1059520","title":"The complexity of XPath query evaluation and XML typing","display_name":"The complexity of XPath query evaluation and XML typing","publication_year":2005,"publication_date":"2005-03-01","ids":{"openalex":"https://openalex.org/W2170477095","doi":"https://doi.org/10.1145/1059513.1059520","mag":"2170477095"},"language":"en","primary_location":{"id":"doi:10.1145/1059513.1059520","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1059513.1059520","pdf_url":null,"source":{"id":"https://openalex.org/S118992489","display_name":"Journal of the ACM","issn_l":"0004-5411","issn":["0004-5411","1557-735X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the ACM","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://inria.hal.science/hal-02886548","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5050151740","display_name":"Georg Gottlob","orcid":"https://orcid.org/0000-0002-2353-5230"},"institutions":[{"id":"https://openalex.org/I145847075","display_name":"TU Wien","ror":"https://ror.org/04d836q62","country_code":"AT","type":"education","lineage":["https://openalex.org/I145847075"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Georg Gottlob","raw_affiliation_strings":["Technische Universit\u00e4t Wien, Wien, Austria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Technische Universit\u00e4t Wien, Wien, Austria","institution_ids":["https://openalex.org/I145847075"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101903922","display_name":"Christoph Koch","orcid":"https://orcid.org/0000-0002-9130-7205"},"institutions":[{"id":"https://openalex.org/I145847075","display_name":"TU Wien","ror":"https://ror.org/04d836q62","country_code":"AT","type":"education","lineage":["https://openalex.org/I145847075"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Christoph Koch","raw_affiliation_strings":["Technische Universit\u00e4t Wien, Wien, Austria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Technische Universit\u00e4t Wien, Wien, Austria","institution_ids":["https://openalex.org/I145847075"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091683403","display_name":"Reinhard Pichler","orcid":"https://orcid.org/0000-0002-1760-122X"},"institutions":[{"id":"https://openalex.org/I145847075","display_name":"TU Wien","ror":"https://ror.org/04d836q62","country_code":"AT","type":"education","lineage":["https://openalex.org/I145847075"]}],"countries":["AT"],"is_corresponding":false,"raw_author_name":"Reinhard Pichler","raw_affiliation_strings":["Technische Universit\u00e4t Wien, Wien, Austria"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Technische Universit\u00e4t Wien, Wien, Austria","institution_ids":["https://openalex.org/I145847075"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5042411667","display_name":"Luc Segoufin","orcid":"https://orcid.org/0000-0002-9564-7581"},"institutions":[{"id":"https://openalex.org/I1326498283","display_name":"Institut national de recherche en sciences et technologies du num\u00e9rique","ror":"https://ror.org/02kvxyf05","country_code":"FR","type":"government","lineage":["https://openalex.org/I1326498283"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Luc Segoufin","raw_affiliation_strings":["INRIA, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"INRIA, France","institution_ids":["https://openalex.org/I1326498283"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":7.8396,"has_fulltext":false,"cited_by_count":74,"citation_normalized_percentile":{"value":0.97603198,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"52","issue":"2","first_page":"284","last_page":"335"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9995999932289124,"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"}},"topics":[{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9995999932289124,"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"}},{"id":"https://openalex.org/T10215","display_name":"Semantic Web and Ontologies","score":0.9943000078201294,"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/T10126","display_name":"Logic, programming, and type systems","score":0.9921000003814697,"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/xpath","display_name":"XPath","score":0.952786922454834},{"id":"https://openalex.org/keywords/p","display_name":"P","score":0.8912950754165649},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7285582423210144},{"id":"https://openalex.org/keywords/xml","display_name":"XML","score":0.6210393905639648},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.5210235118865967},{"id":"https://openalex.org/keywords/streaming-xml","display_name":"Streaming XML","score":0.5009479522705078},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.48492199182510376},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.45945674180984497},{"id":"https://openalex.org/keywords/xml-database","display_name":"XML database","score":0.41685807704925537},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.22579550743103027},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.08133092522621155}],"concepts":[{"id":"https://openalex.org/C2780213375","wikidata":"https://www.wikidata.org/wiki/Q16340","display_name":"XPath","level":4,"score":0.952786922454834},{"id":"https://openalex.org/C134026603","wikidata":"https://www.wikidata.org/wiki/Q846354","display_name":"P","level":3,"score":0.8912950754165649},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7285582423210144},{"id":"https://openalex.org/C8797682","wikidata":"https://www.wikidata.org/wiki/Q2115","display_name":"XML","level":2,"score":0.6210393905639648},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.5210235118865967},{"id":"https://openalex.org/C44883583","wikidata":"https://www.wikidata.org/wiki/Q7622687","display_name":"Streaming XML","level":3,"score":0.5009479522705078},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.48492199182510376},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.45945674180984497},{"id":"https://openalex.org/C183068750","wikidata":"https://www.wikidata.org/wiki/Q357393","display_name":"XML database","level":3,"score":0.41685807704925537},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.22579550743103027},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.08133092522621155}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1145/1059513.1059520","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1059513.1059520","pdf_url":null,"source":{"id":"https://openalex.org/S118992489","display_name":"Journal of the ACM","issn_l":"0004-5411","issn":["0004-5411","1557-735X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of the ACM","raw_type":"journal-article"},{"id":"pmh:oai:HAL:hal-02886548v1","is_oa":true,"landing_page_url":"https://inria.hal.science/hal-02886548","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of the ACM (JACM), 2005, 52 (2), pp.284-335. &#x27E8;10.1145/1059513.1059520&#x27E9;","raw_type":"info:eu-repo/semantics/article"},{"id":"pmh:oai:infoscience.epfl.ch:166874","is_oa":true,"landing_page_url":"http://infoscience.epfl.ch/record/166874","pdf_url":null,"source":{"id":"https://openalex.org/S4306400487","display_name":"Infoscience (Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"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:HAL:hal-02886548v1","is_oa":true,"landing_page_url":"https://inria.hal.science/hal-02886548","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of the ACM (JACM), 2005, 52 (2), pp.284-335. &#x27E8;10.1145/1059513.1059520&#x27E9;","raw_type":"info:eu-repo/semantics/article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":50,"referenced_works":["https://openalex.org/W41330591","https://openalex.org/W85324871","https://openalex.org/W1490189322","https://openalex.org/W1497287285","https://openalex.org/W1506378440","https://openalex.org/W1540516609","https://openalex.org/W1557116728","https://openalex.org/W1571327583","https://openalex.org/W1573219107","https://openalex.org/W1579407214","https://openalex.org/W1584587517","https://openalex.org/W1593799327","https://openalex.org/W1716100575","https://openalex.org/W1853742281","https://openalex.org/W1869733288","https://openalex.org/W1965022641","https://openalex.org/W1968327120","https://openalex.org/W1971742702","https://openalex.org/W1979328074","https://openalex.org/W1987709131","https://openalex.org/W1989783863","https://openalex.org/W1989887898","https://openalex.org/W1990483472","https://openalex.org/W1990870868","https://openalex.org/W1991188222","https://openalex.org/W2004485491","https://openalex.org/W2030011197","https://openalex.org/W2031848583","https://openalex.org/W2032411923","https://openalex.org/W2038247515","https://openalex.org/W2045583484","https://openalex.org/W2051700974","https://openalex.org/W2059078591","https://openalex.org/W2064710033","https://openalex.org/W2071260871","https://openalex.org/W2087898817","https://openalex.org/W2099098891","https://openalex.org/W2115309483","https://openalex.org/W2119630998","https://openalex.org/W2148154295","https://openalex.org/W2294348221","https://openalex.org/W2502590327","https://openalex.org/W2561675875","https://openalex.org/W2748837517","https://openalex.org/W4285719527","https://openalex.org/W4391177866","https://openalex.org/W6601718084","https://openalex.org/W6603465292","https://openalex.org/W6630400633","https://openalex.org/W6990023262"],"related_works":["https://openalex.org/W165852420","https://openalex.org/W207633616","https://openalex.org/W1597906172","https://openalex.org/W3129453902","https://openalex.org/W2146200818","https://openalex.org/W2465015636","https://openalex.org/W2298092871","https://openalex.org/W2096267046","https://openalex.org/W2096927233","https://openalex.org/W1525887267"],"abstract_inverted_index":{"We":[0,28],"study":[1,57],"the":[2,32,36,50,58,76,84,96,147,153,162],"complexity":[3,34,38,47,52,78,87,97,154],"of":[4,39,60,71,98],"two":[5],"central":[6],"XML":[7,100,111,142],"processing":[8],"problems.":[9],"The":[10,92],"first":[11],"is":[12,53,79,95,134,144],"XPath":[13,40,72],"1.0":[14,41,73],"query":[15,37],"processing,":[16],"which":[17,75],"has":[18],"been":[19],"shown":[20],"to":[21,121,124,158],"be":[22],"in":[23,25,83,135],"PTIME":[24],"previous":[26],"work.":[27],"prove":[29,131],"that":[30,132,152],"both":[31,118],"data":[33,122,128,143],"and":[35,63,67,115,123,137],"fall":[42],"into":[43],"lower":[44],"(highly":[45],"parallelizable)":[46],"classes,":[48],"while":[49],"combined":[51,77,125,148],"PTIME-hard.":[54],"Subsequently,":[55],"we":[56,130,150],"sources":[59],"this":[61],"hardness":[62],"identify":[64],"a":[65],"large":[66],"practically":[68],"important":[69],"fragment":[70],"for":[74],"LOGCFL-complete":[80],"and,":[81],"therefore,":[82],"highly":[85],"parallelizable":[86],"class":[88],"NC":[89],"2":[90],".":[91],"second":[93],"problem":[94],"validating":[99],"documents":[101],"against":[102],"various":[103],"typing":[104,163],"schemes":[105],"like":[106],"Document":[107],"Type":[108],"Definitions":[109,113],"(DTDs),":[110],"Schema":[112],"(XSDs),":[114],"tree":[116],"automata,":[117],"with":[119],"respect":[120],"complexity.":[126],"For":[127,146],"complexity,":[129,149],"validation":[133],"LOGSPACE":[136,157],"depends":[138],"crucially":[139],"on":[140,161],"how":[141],"represented.":[145],"show":[151],"ranges":[155],"from":[156],"LOGCFL,":[159],"depending":[160],"scheme.":[164]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":3},{"year":2012,"cited_by_count":7}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
