{"id":"https://openalex.org/W1977655608","doi":"https://doi.org/10.1145/1739041.1739048","title":"Processing XPath queries with forward and downward axes over XML streams","display_name":"Processing XPath queries with forward and downward axes over XML streams","publication_year":2010,"publication_date":"2010-03-16","ids":{"openalex":"https://openalex.org/W1977655608","doi":"https://doi.org/10.1145/1739041.1739048","mag":"1977655608"},"language":"en","primary_location":{"id":"doi:10.1145/1739041.1739048","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1739041.1739048","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 13th International Conference on Extending Database Technology","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/A5030272842","display_name":"Makoto Onizuka","orcid":"https://orcid.org/0000-0001-5559-8300"},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Makoto Onizuka","raw_affiliation_strings":["NTT Cyber Space Laboratories, NTT Corporation, Yokosuka, Japan","[NTT Cyber Space Laboratories, NTT Corporation, Yokosuka, Japan]"],"affiliations":[{"raw_affiliation_string":"NTT Cyber Space Laboratories, NTT Corporation, Yokosuka, Japan","institution_ids":["https://openalex.org/I2251713219"]},{"raw_affiliation_string":"[NTT Cyber Space Laboratories, NTT Corporation, Yokosuka, Japan]","institution_ids":["https://openalex.org/I2251713219"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5030272842"],"corresponding_institution_ids":["https://openalex.org/I2251713219"],"apc_list":null,"apc_paid":null,"fwci":3.2051,"has_fulltext":false,"cited_by_count":16,"citation_normalized_percentile":{"value":0.91758704,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"27","last_page":"38"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9998000264167786,"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":0.9998000264167786,"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/T11269","display_name":"Algorithms and Data Compression","score":0.9969000220298767,"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":0.9965999722480774,"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":0.9703273773193359},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8550985455513},{"id":"https://openalex.org/keywords/xml","display_name":"XML","score":0.6500054597854614},{"id":"https://openalex.org/keywords/parsing","display_name":"Parsing","score":0.5863118767738342},{"id":"https://openalex.org/keywords/automaton","display_name":"Automaton","score":0.4764150381088257},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.4637613296508789},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.45310917496681213},{"id":"https://openalex.org/keywords/streaming-xml","display_name":"Streaming XML","score":0.44376707077026367},{"id":"https://openalex.org/keywords/simple-api-for-xml","display_name":"Simple API for XML","score":0.43422138690948486},{"id":"https://openalex.org/keywords/transitive-closure","display_name":"Transitive closure","score":0.4270074665546417},{"id":"https://openalex.org/keywords/time-complexity","display_name":"Time complexity","score":0.414783775806427},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.37325698137283325},{"id":"https://openalex.org/keywords/parallel-computing","display_name":"Parallel computing","score":0.3216811716556549},{"id":"https://openalex.org/keywords/xml-database","display_name":"XML database","score":0.2993912100791931},{"id":"https://openalex.org/keywords/xml-signature","display_name":"XML Signature","score":0.1898500621318817},{"id":"https://openalex.org/keywords/efficient-xml-interchange","display_name":"Efficient XML Interchange","score":0.12347158789634705},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.09359782934188843},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.08811140060424805},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.0834665596485138}],"concepts":[{"id":"https://openalex.org/C2780213375","wikidata":"https://www.wikidata.org/wiki/Q16340","display_name":"XPath","level":4,"score":0.9703273773193359},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8550985455513},{"id":"https://openalex.org/C8797682","wikidata":"https://www.wikidata.org/wiki/Q2115","display_name":"XML","level":2,"score":0.6500054597854614},{"id":"https://openalex.org/C186644900","wikidata":"https://www.wikidata.org/wiki/Q194152","display_name":"Parsing","level":2,"score":0.5863118767738342},{"id":"https://openalex.org/C112505250","wikidata":"https://www.wikidata.org/wiki/Q787116","display_name":"Automaton","level":2,"score":0.4764150381088257},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.4637613296508789},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.45310917496681213},{"id":"https://openalex.org/C44883583","wikidata":"https://www.wikidata.org/wiki/Q7622687","display_name":"Streaming XML","level":3,"score":0.44376707077026367},{"id":"https://openalex.org/C8595896","wikidata":"https://www.wikidata.org/wiki/Q577094","display_name":"Simple API for XML","level":5,"score":0.43422138690948486},{"id":"https://openalex.org/C128896722","wikidata":"https://www.wikidata.org/wiki/Q1501387","display_name":"Transitive closure","level":2,"score":0.4270074665546417},{"id":"https://openalex.org/C311688","wikidata":"https://www.wikidata.org/wiki/Q2393193","display_name":"Time complexity","level":2,"score":0.414783775806427},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.37325698137283325},{"id":"https://openalex.org/C173608175","wikidata":"https://www.wikidata.org/wiki/Q232661","display_name":"Parallel computing","level":1,"score":0.3216811716556549},{"id":"https://openalex.org/C183068750","wikidata":"https://www.wikidata.org/wiki/Q357393","display_name":"XML database","level":3,"score":0.2993912100791931},{"id":"https://openalex.org/C34330436","wikidata":"https://www.wikidata.org/wiki/Q979532","display_name":"XML Signature","level":4,"score":0.1898500621318817},{"id":"https://openalex.org/C11508877","wikidata":"https://www.wikidata.org/wiki/Q1124477","display_name":"Efficient XML Interchange","level":3,"score":0.12347158789634705},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.09359782934188843},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.08811140060424805},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0834665596485138}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1739041.1739048","is_oa":false,"landing_page_url":"https://doi.org/10.1145/1739041.1739048","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 13th International Conference on Extending Database Technology","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":27,"referenced_works":["https://openalex.org/W174869497","https://openalex.org/W1607660775","https://openalex.org/W1716100575","https://openalex.org/W1749554492","https://openalex.org/W1912713675","https://openalex.org/W1964356327","https://openalex.org/W1969783316","https://openalex.org/W1971742702","https://openalex.org/W2002089154","https://openalex.org/W2003250112","https://openalex.org/W2033592794","https://openalex.org/W2059040279","https://openalex.org/W2061884758","https://openalex.org/W2096693597","https://openalex.org/W2105009343","https://openalex.org/W2106224013","https://openalex.org/W2107683037","https://openalex.org/W2117242430","https://openalex.org/W2129097092","https://openalex.org/W2134826526","https://openalex.org/W2135611729","https://openalex.org/W2135992300","https://openalex.org/W2157072592","https://openalex.org/W2159701549","https://openalex.org/W2164770381","https://openalex.org/W2171037641","https://openalex.org/W2172247142"],"related_works":["https://openalex.org/W2151886642","https://openalex.org/W2044007894","https://openalex.org/W2375559890","https://openalex.org/W165852420","https://openalex.org/W207633616","https://openalex.org/W3129453902","https://openalex.org/W2096927233","https://openalex.org/W1963648730","https://openalex.org/W2345819528","https://openalex.org/W1487530233"],"abstract_inverted_index":{"We":[0,183],"propose":[1],"an":[2],"XPath":[3,9,20,50,105],"processing":[4],"algorithm":[5,48,88,189],"that":[6,195],"efficiently":[7],"evaluates":[8,49],"queries":[10,51,106],"in":[11,32,62,78,113,141,151,172],"XP{\u2193,":[12,72,114],"\u2192,":[13,73,115],"*,":[14,74],"[]}":[15,75],"over":[16],"XML":[17,33,54,63,128,153],"streams.":[18],"An":[19],"query":[21,67],"is":[22,102,108,124,132,198],"expressed":[23],"with":[24],"axes,":[25],"which":[26,167],"are":[27],"binary":[28],"relations":[29],"between":[30],"nodes":[31],"streams:":[34],"'\u2193'":[35],"identifies":[36],"the":[37,43,59,66,84,138,142,147,152,169,173,185,188],"child/descendant":[38],"axes":[39],"and":[40,57,107,146,193,204],"'\u2192'":[41],"indicates":[42],"following/following-sibling":[44,85],"axes.":[45,86],"The":[46,69,87],"proposed":[47],"within":[52],"one":[53],"parsing":[55],"pass":[56],"outputs":[58],"fragments":[60],"found":[61],"streams":[64],"as":[65,206],"results.":[68],"difficulty":[70],"of":[71,137,176,187],"evaluation":[76],"lies":[77],"establishing":[79],"dynamic":[80],"scope":[81],"control":[82],"for":[83],"uses":[89],"double-layered":[90],"non-deterministic":[91],"finite":[92],"automata":[93],"(NFA)":[94],"to":[95,110,200],"resolve":[96],"this":[97],"issue.":[98],"First":[99],"layer":[100,118,144],"NFA":[101,119,156,178,197],"compiled":[103],"from":[104,134],"able":[109],"evaluate":[111],"sub-queries":[112],"*}.":[116],"Second":[117],"handles":[120],"predicate":[121],"parts.":[122],"It":[123],"dynamically":[125],"maintained":[126],"during":[127],"parsing:":[129],"a":[130,135,163],"state":[131,140,164,174],"constructed":[133],"pair":[136],"corresponding":[139],"first":[143],"automaton":[145],"currently":[148],"parsed":[149],"node":[150],"stream.":[154],"Layered":[155,177,196],"achieves":[157],"O(|D||Q|)":[158],"time":[159],"complexity":[160],"by":[161,179],"introducing":[162],"sharing":[165],"technique,":[166],"avoids":[168],"exponential":[170],"growth":[171],"size":[175],"eliminating":[180],"redundant":[181],"transitions.":[182],"validate":[184],"efficiency":[186],"through":[190],"empirical":[191],"experiments":[192],"show":[194],"up":[199],"four":[201],"times":[202],"faster,":[203],"twice":[205],"fast":[207],"on":[208],"average,":[209],"than":[210],"existing":[211],"algorithms.":[212]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":2},{"year":2012,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}