{"id":"https://openalex.org/W2148154295","doi":"https://doi.org/10.1109/icde.2003.1260807","title":"XPath query evaluation: improving time and space efficiency","display_name":"XPath query evaluation: improving time and space efficiency","publication_year":2004,"publication_date":"2004-05-06","ids":{"openalex":"https://openalex.org/W2148154295","doi":"https://doi.org/10.1109/icde.2003.1260807","mag":"2148154295"},"language":"en","primary_location":{"id":"doi:10.1109/icde.2003.1260807","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icde.2003.1260807","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings 19th International Conference on Data Engineering (Cat. No.03CH37405)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://infoscience.epfl.ch/record/166891","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":true,"raw_author_name":"G. Gottlob","raw_affiliation_strings":["Inst. f\u00fcr Informationssysteme, Technische Universit\u00e4t Wien, Vienna, Austria"],"affiliations":[{"raw_affiliation_string":"Inst. f\u00fcr Informationssysteme, Technische Universit\u00e4t Wien, Vienna, 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":"C. Koch","raw_affiliation_strings":["Inst. f\u00fcr Informationssysteme, Technische Universit\u00e4t Wien, Vienna, Austria"],"affiliations":[{"raw_affiliation_string":"Inst. f\u00fcr Informationssysteme, Technische Universit\u00e4t Wien, Vienna, Austria","institution_ids":["https://openalex.org/I145847075"]}]},{"author_position":"last","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":"R. Pichler","raw_affiliation_strings":["Inst. f\u00fcr Informationssysteme, Technische Universit\u00e4t Wien, Vienna, Austria"],"affiliations":[{"raw_affiliation_string":"Inst. f\u00fcr Informationssysteme, Technische Universit\u00e4t Wien, Vienna, Austria","institution_ids":["https://openalex.org/I145847075"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5050151740"],"corresponding_institution_ids":["https://openalex.org/I145847075"],"apc_list":null,"apc_paid":null,"fwci":10.2118,"has_fulltext":false,"cited_by_count":64,"citation_normalized_percentile":{"value":0.98266316,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"379","last_page":"390"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9998999834060669,"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":0.9998999834060669,"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/T11106","display_name":"Data Management and Algorithms","score":0.9959999918937683,"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/T10215","display_name":"Semantic Web and Ontologies","score":0.9952999949455261,"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":0.9923633337020874},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.784111499786377},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.6687036752700806},{"id":"https://openalex.org/keywords/query-optimization","display_name":"Query optimization","score":0.5202121138572693},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.45486515760421753},{"id":"https://openalex.org/keywords/relevance","display_name":"Relevance (law)","score":0.4528924822807312},{"id":"https://openalex.org/keywords/path-expression","display_name":"Path expression","score":0.4272823631763458},{"id":"https://openalex.org/keywords/information-retrieval","display_name":"Information retrieval","score":0.41767618060112},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.4113152325153351},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3686733543872833},{"id":"https://openalex.org/keywords/query-language","display_name":"Query language","score":0.26570218801498413},{"id":"https://openalex.org/keywords/xml","display_name":"XML","score":0.1960068941116333}],"concepts":[{"id":"https://openalex.org/C2780213375","wikidata":"https://www.wikidata.org/wiki/Q16340","display_name":"XPath","level":4,"score":0.9923633337020874},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.784111499786377},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.6687036752700806},{"id":"https://openalex.org/C157692150","wikidata":"https://www.wikidata.org/wiki/Q2919848","display_name":"Query optimization","level":2,"score":0.5202121138572693},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.45486515760421753},{"id":"https://openalex.org/C158154518","wikidata":"https://www.wikidata.org/wiki/Q7310970","display_name":"Relevance (law)","level":2,"score":0.4528924822807312},{"id":"https://openalex.org/C61114434","wikidata":"https://www.wikidata.org/wiki/Q7144649","display_name":"Path expression","level":3,"score":0.4272823631763458},{"id":"https://openalex.org/C23123220","wikidata":"https://www.wikidata.org/wiki/Q816826","display_name":"Information retrieval","level":1,"score":0.41767618060112},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.4113152325153351},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3686733543872833},{"id":"https://openalex.org/C192028432","wikidata":"https://www.wikidata.org/wiki/Q845739","display_name":"Query language","level":2,"score":0.26570218801498413},{"id":"https://openalex.org/C8797682","wikidata":"https://www.wikidata.org/wiki/Q2115","display_name":"XML","level":2,"score":0.1960068941116333},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0},{"id":"https://openalex.org/C55348073","wikidata":"https://www.wikidata.org/wiki/Q595926","display_name":"XML validation","level":3,"score":0.0},{"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/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1109/icde.2003.1260807","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icde.2003.1260807","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings 19th International Conference on Data Engineering (Cat. No.03CH37405)","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.20.1071","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.20.1071","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www.dbai.tuwien.ac.at/staff/koch/download/icde2003.pdf","raw_type":"text"},{"id":"pmh:oai:infoscience.epfl.ch:166891","is_oa":true,"landing_page_url":"http://infoscience.epfl.ch/record/166891","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"},{"id":"pmh:oai:ora.ox.ac.uk:uuid:16b16cb2-8d1d-4a01-8f77-7a28691c7fc4","is_oa":false,"landing_page_url":"https://ora.ox.ac.uk/objects/uuid:16b16cb2-8d1d-4a01-8f77-7a28691c7fc4","pdf_url":null,"source":{"id":"https://openalex.org/S4306402636","display_name":"Oxford University Research Archive (ORA) (University of Oxford)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I40120149","host_organization_name":"University of Oxford","host_organization_lineage":["https://openalex.org/I40120149"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Department of Computer Science","raw_type":"Conference item"}],"best_oa_location":{"id":"pmh:oai:infoscience.epfl.ch:166891","is_oa":true,"landing_page_url":"http://infoscience.epfl.ch/record/166891","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"},"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.5699999928474426,"id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W1508914815","https://openalex.org/W1535627680","https://openalex.org/W1540516609","https://openalex.org/W1573972396","https://openalex.org/W1582776257","https://openalex.org/W1593879680","https://openalex.org/W1829663701","https://openalex.org/W1971742702","https://openalex.org/W1977578205","https://openalex.org/W1981870753","https://openalex.org/W1995362929","https://openalex.org/W2029970296","https://openalex.org/W2061884758","https://openalex.org/W2113836856","https://openalex.org/W2122225808","https://openalex.org/W2129524385","https://openalex.org/W2160442532","https://openalex.org/W2616076417","https://openalex.org/W3021222708","https://openalex.org/W4255338640","https://openalex.org/W6630579097","https://openalex.org/W6634723813","https://openalex.org/W6638641923","https://openalex.org/W6643184063","https://openalex.org/W6683775181"],"related_works":["https://openalex.org/W1534104849","https://openalex.org/W2136834295","https://openalex.org/W2068852373","https://openalex.org/W2124793519","https://openalex.org/W2146310406","https://openalex.org/W1958678540","https://openalex.org/W3164787465","https://openalex.org/W2294034341","https://openalex.org/W1485738204","https://openalex.org/W2148154295"],"abstract_inverted_index":{"Contemporary":[0],"XPath":[1,32,78,98,116,129],"query":[2,106,117],"engines":[3],"evaluate":[4],"queries":[5],"in":[6,9,42],"time":[7,36,44,83],"exponential":[8],"the":[10,26,49,52,55],"sizes":[11],"of":[12,51,73,97,105,128],"input":[13],"queries,":[14,56],"a":[15,22,90,101],"fact":[16],"that":[17,74],"has":[18,57],"gone":[19],"unnoticed":[20],"for":[21,31,99,115],"long":[23],"time.":[24],"Recently,":[25],"first":[27],"main-memory":[28],"evaluation":[29,107],"algorithm":[30],"1.0":[33,130],"with":[34,46,81],"polynomial":[35,43],"combined":[37],"complexity,":[38],"i.e.,":[39],"which":[40,100,131],"runs":[41],"both":[45],"respect":[47],"to":[48,136],"size":[50],"data":[53],"and":[54,71,84,93],"been":[58],"published":[59],"(cf.":[60],"[G.":[61],"Gottlob,":[62],"et":[63],"al.,":[64],"(2002)].":[65],"We":[66],"present":[67],"several":[68],"important":[69],"improvements":[70],"extensions":[72],"work,":[75],"including":[76],"new":[77,123],"processing":[79],"algorithms":[80],"improved":[82],"space":[85],"efficiency.":[86],"Moreover,":[87],"we":[88],"define":[89],"very":[91],"large":[92],"practically":[94],"relevant":[95],"fragment":[96],"further":[102],"optimized":[103],"form":[104],"is":[108],"possible.":[109],"Apart":[110],"from":[111],"its":[112],"immediate":[113],"relevance":[114],"processing,":[118],"our":[119],"work":[120],"also":[121],"sheds":[122],"light":[124],"at":[125],"those":[126],"features":[127],"are":[132],"most":[133],"costly":[134],"relative":[135],"their":[137],"practical":[138],"usefulness.":[139]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}
