{"id":"https://openalex.org/W2082657468","doi":"https://doi.org/10.1017/s0956796800003749","title":"Combinators for breadth-first search","display_name":"Combinators for breadth-first search","publication_year":2000,"publication_date":"2000-07-01","ids":{"openalex":"https://openalex.org/W2082657468","doi":"https://doi.org/10.1017/s0956796800003749","mag":"2082657468"},"language":"en","primary_location":{"id":"doi:10.1017/s0956796800003749","is_oa":true,"landing_page_url":"https://doi.org/10.1017/s0956796800003749","pdf_url":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/60383337C85657F3F6549C18F4E345BA/S0956796800003749a.pdf/div-class-title-combinators-for-breadth-first-search-div.pdf","source":{"id":"https://openalex.org/S12266929","display_name":"Journal of Functional Programming","issn_l":"0956-7968","issn":["0956-7968","1469-7653"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Functional Programming","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/60383337C85657F3F6549C18F4E345BA/S0956796800003749a.pdf/div-class-title-combinators-for-breadth-first-search-div.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5109566571","display_name":"Michael Z. Spivey","orcid":null},"institutions":[{"id":"https://openalex.org/I40120149","display_name":"University of Oxford","ror":"https://ror.org/052gg0110","country_code":"GB","type":"education","lineage":["https://openalex.org/I40120149"]}],"countries":["GB"],"is_corresponding":true,"raw_author_name":"MICHAEL SPIVEY","raw_affiliation_strings":["Oxford University Computing Laboratory, Wolfson Building, Parks Road, Oxford OX1 3QD, UK","Oxford University Computing Laboratory   Wolfson Building, Parks Road   Oxford OX1 3QD, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Oxford University Computing Laboratory, Wolfson Building, Parks Road, Oxford OX1 3QD, UK","institution_ids":["https://openalex.org/I40120149"]},{"raw_affiliation_string":"Oxford University Computing Laboratory   Wolfson Building, Parks Road   Oxford OX1 3QD, UK","institution_ids":["https://openalex.org/I40120149"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5109566571"],"corresponding_institution_ids":["https://openalex.org/I40120149"],"apc_list":null,"apc_paid":null,"fwci":1.062,"has_fulltext":true,"cited_by_count":20,"citation_normalized_percentile":{"value":0.83453153,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"10","issue":"4","first_page":"397","last_page":"408"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9991999864578247,"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"}},"topics":[{"id":"https://openalex.org/T10126","display_name":"Logic, programming, and type systems","score":0.9991999864578247,"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/T10260","display_name":"Software Engineering Research","score":0.9987000226974487,"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/T10743","display_name":"Software Testing and Debugging Techniques","score":0.9962000250816345,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"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/computer-science","display_name":"Computer science","score":0.8739559650421143},{"id":"https://openalex.org/keywords/programmer","display_name":"Programmer","score":0.7612444758415222},{"id":"https://openalex.org/keywords/lazy-evaluation","display_name":"Lazy evaluation","score":0.7003642916679382},{"id":"https://openalex.org/keywords/combinatory-logic","display_name":"Combinatory logic","score":0.6682877540588379},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.5957663655281067},{"id":"https://openalex.org/keywords/clarity","display_name":"CLARITY","score":0.5101264119148254},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.5050628781318665},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.46911361813545227},{"id":"https://openalex.org/keywords/extension","display_name":"Extension (predicate logic)","score":0.42317867279052734},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.4118127226829529},{"id":"https://openalex.org/keywords/functional-programming","display_name":"Functional programming","score":0.3647046387195587}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8739559650421143},{"id":"https://openalex.org/C2778514511","wikidata":"https://www.wikidata.org/wiki/Q1374194","display_name":"Programmer","level":2,"score":0.7612444758415222},{"id":"https://openalex.org/C128099668","wikidata":"https://www.wikidata.org/wiki/Q573952","display_name":"Lazy evaluation","level":3,"score":0.7003642916679382},{"id":"https://openalex.org/C79678938","wikidata":"https://www.wikidata.org/wiki/Q1481571","display_name":"Combinatory logic","level":2,"score":0.6682877540588379},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.5957663655281067},{"id":"https://openalex.org/C2777146004","wikidata":"https://www.wikidata.org/wiki/Q14949826","display_name":"CLARITY","level":2,"score":0.5101264119148254},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.5050628781318665},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.46911361813545227},{"id":"https://openalex.org/C2778029271","wikidata":"https://www.wikidata.org/wiki/Q5421931","display_name":"Extension (predicate logic)","level":2,"score":0.42317867279052734},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.4118127226829529},{"id":"https://openalex.org/C42383842","wikidata":"https://www.wikidata.org/wiki/Q193076","display_name":"Functional programming","level":2,"score":0.3647046387195587},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","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},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1017/s0956796800003749","is_oa":true,"landing_page_url":"https://doi.org/10.1017/s0956796800003749","pdf_url":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/60383337C85657F3F6549C18F4E345BA/S0956796800003749a.pdf/div-class-title-combinators-for-breadth-first-search-div.pdf","source":{"id":"https://openalex.org/S12266929","display_name":"Journal of Functional Programming","issn_l":"0956-7968","issn":["0956-7968","1469-7653"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Functional Programming","raw_type":"journal-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.28.2420","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.28.2420","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://spivey.oriel.ox.ac.uk/~mike/bfs/bfs.ps","raw_type":"text"}],"best_oa_location":{"id":"doi:10.1017/s0956796800003749","is_oa":true,"landing_page_url":"https://doi.org/10.1017/s0956796800003749","pdf_url":"https://www.cambridge.org/core/services/aop-cambridge-core/content/view/60383337C85657F3F6549C18F4E345BA/S0956796800003749a.pdf/div-class-title-combinators-for-breadth-first-search-div.pdf","source":{"id":"https://openalex.org/S12266929","display_name":"Journal of Functional Programming","issn_l":"0956-7968","issn":["0956-7968","1469-7653"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310311721","host_organization_name":"Cambridge University Press","host_organization_lineage":["https://openalex.org/P4310311721","https://openalex.org/P4310311702"],"host_organization_lineage_names":["Cambridge University Press","University of Cambridge"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Functional Programming","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2082657468.pdf","grobid_xml":"https://content.openalex.org/works/W2082657468.grobid-xml"},"referenced_works_count":4,"referenced_works":["https://openalex.org/W1507155521","https://openalex.org/W1558180172","https://openalex.org/W2096947206","https://openalex.org/W2149935768"],"related_works":["https://openalex.org/W2949151943","https://openalex.org/W1793478138","https://openalex.org/W2521829344","https://openalex.org/W1734457603","https://openalex.org/W4235947164","https://openalex.org/W1492479631","https://openalex.org/W2011055092","https://openalex.org/W1550884307","https://openalex.org/W4247231006","https://openalex.org/W2113898191"],"abstract_inverted_index":{"Every":[0],"functional":[1],"programmer":[2],"knows":[3],"the":[4,23,26,36,44,54,115,128,136,159,163],"technique":[5,40],"of":[6,12,22,38,106,130,138,145],"\u201creplacing":[7],"failure":[8],"by":[9,89],"a":[10,65,90,103,119],"list":[11,27,142],"successes\u201d":[13,39],"(Wadler,":[14],"1985),":[15],"but":[16],"wise":[17],"programmers":[18],"are":[19,125],"aware":[20],"also":[21],"possibility":[24],"that":[25,79,101],"will":[28,133],"be":[29,156],"empty":[30],"or":[31,84],"(worse)":[32],"divergent.":[33],"In":[34],"fact,":[35],"\u201clists":[37],"is":[41,56],"equivalent":[42],"to":[43,63,113],"incomplete":[45],"depth-first":[46],"search":[47],"strategy":[48],"used":[49,165],"in":[50,158,166],"Prolog.":[51],"At":[52],"heart,":[53],"idea":[55],"quite":[57],"simple:":[58],"whenever":[59],"we":[60,86],"might":[61],"want":[62],"use":[64],"\u2018multi-function\u2019":[66],"such":[67],"as":[68,123],"\u2018":[69],"f":[70,93],"\u2019":[71],"[ratio":[72,94],"][ratio":[73,95],"]":[74,77,96],"\u03b1":[75,97],"[Rarr":[76],"\u03b2":[78,99],"can":[80],"return":[81],"many":[82],"results":[83],"none,":[85],"replace":[87],"it":[88],"genuine":[91],"function":[92],"\u2192":[98],"stream":[100,105,151],"returns":[102],"lazy":[104,111,148],"results,":[107],"and":[108,121,144],"rely":[109],"on":[110],"evaluation":[112],"compute":[114],"answers":[116],"one":[117],"at":[118],"time,":[120],"only":[122],"they":[124],"needed.":[126],"For":[127],"sake":[129],"clarity,":[131],"I":[132],"distinguish":[134],"between":[135],"types":[137],"finite":[139],"lists":[140],"(\u03b1":[141,150],")":[143],"potentially":[146],"infinite,":[147],"streams":[149],"),":[152],"though":[153],"both":[154],"may":[155],"implemented":[157],"same":[160],"way.":[161],"Following":[162],"conventions":[164],"ML,":[167],"type":[168],"constructors":[169],"follow":[170],"their":[171],"argument":[172],"types.":[173]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-05-27T06:14:07.914337","created_date":"2025-10-10T00:00:00"}
