{"id":"https://openalex.org/W2069779156","doi":"https://doi.org/10.1007/bf01932132","title":"Counting labels in binary trees","display_name":"Counting labels in binary trees","publication_year":1990,"publication_date":"1990-03-01","ids":{"openalex":"https://openalex.org/W2069779156","doi":"https://doi.org/10.1007/bf01932132","mag":"2069779156"},"language":"en","primary_location":{"id":"doi:10.1007/bf01932132","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01932132","pdf_url":null,"source":{"id":"https://openalex.org/S125499977","display_name":"BIT Numerical Mathematics","issn_l":"0006-3835","issn":["0006-3835","1572-9125"],"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":"BIT","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/A5103348244","display_name":"Renzo Sprugnoli","orcid":null},"institutions":[{"id":"https://openalex.org/I4210157811","display_name":"Centro di Ricerca in Matematica Pura ed Applicata","ror":"https://ror.org/04fv5g904","country_code":"IT","type":"nonprofit","lineage":["https://openalex.org/I4210157811"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Renzo Sprugnoli","raw_affiliation_strings":["Dipartimento di Matematica Pura \u00e8 Applicata, Via Belzoni, 7, 1 35131, Padova, Italy","Dipartimento di Matematica Pura \u00e8 Applicata, Padova, Italy"],"affiliations":[{"raw_affiliation_string":"Dipartimento di Matematica Pura \u00e8 Applicata, Via Belzoni, 7, 1 35131, Padova, Italy","institution_ids":["https://openalex.org/I4210157811"]},{"raw_affiliation_string":"Dipartimento di Matematica Pura \u00e8 Applicata, Padova, Italy","institution_ids":["https://openalex.org/I4210157811"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5103348244"],"corresponding_institution_ids":["https://openalex.org/I4210157811"],"apc_list":{"value":2390,"currency":"EUR","value_usd":2990},"apc_paid":null,"fwci":0.5379,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.67829656,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"30","issue":"1","first_page":"62","last_page":"69"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.9980999827384949,"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":0.9980999827384949,"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/T10948","display_name":"Advanced Combinatorial Mathematics","score":0.9976999759674072,"subfield":{"id":"https://openalex.org/subfields/2607","display_name":"Discrete Mathematics and Combinatorics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11269","display_name":"Algorithms and Data Compression","score":0.9896000027656555,"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/permutation","display_name":"Permutation (music)","score":0.6789489984512329},{"id":"https://openalex.org/keywords/binary-tree","display_name":"Binary tree","score":0.6783025860786438},{"id":"https://openalex.org/keywords/binary-number","display_name":"Binary number","score":0.6599025130271912},{"id":"https://openalex.org/keywords/random-binary-tree","display_name":"Random binary tree","score":0.6238324046134949},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.6175297498703003},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.5739027261734009},{"id":"https://openalex.org/keywords/ternary-search-tree","display_name":"Ternary search tree","score":0.5411909818649292},{"id":"https://openalex.org/keywords/binary-search-tree","display_name":"Binary search tree","score":0.5157985687255859},{"id":"https://openalex.org/keywords/weight-balanced-tree","display_name":"Weight-balanced tree","score":0.4651075005531311},{"id":"https://openalex.org/keywords/enumeration","display_name":"Enumeration","score":0.4568125009536743},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.35588401556015015},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3368721902370453},{"id":"https://openalex.org/keywords/arithmetic","display_name":"Arithmetic","score":0.32103079557418823},{"id":"https://openalex.org/keywords/tree-structure","display_name":"Tree structure","score":0.13461285829544067},{"id":"https://openalex.org/keywords/interval-tree","display_name":"Interval tree","score":0.08712548017501831},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.060542523860931396}],"concepts":[{"id":"https://openalex.org/C21308566","wikidata":"https://www.wikidata.org/wiki/Q7169365","display_name":"Permutation (music)","level":2,"score":0.6789489984512329},{"id":"https://openalex.org/C197855036","wikidata":"https://www.wikidata.org/wiki/Q380172","display_name":"Binary tree","level":2,"score":0.6783025860786438},{"id":"https://openalex.org/C48372109","wikidata":"https://www.wikidata.org/wiki/Q3913","display_name":"Binary number","level":2,"score":0.6599025130271912},{"id":"https://openalex.org/C11829167","wikidata":"https://www.wikidata.org/wiki/Q751292","display_name":"Random binary tree","level":3,"score":0.6238324046134949},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.6175297498703003},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.5739027261734009},{"id":"https://openalex.org/C136519935","wikidata":"https://www.wikidata.org/wiki/Q2859802","display_name":"Ternary search tree","level":5,"score":0.5411909818649292},{"id":"https://openalex.org/C91154448","wikidata":"https://www.wikidata.org/wiki/Q623818","display_name":"Binary search tree","level":3,"score":0.5157985687255859},{"id":"https://openalex.org/C57900377","wikidata":"https://www.wikidata.org/wiki/Q7979855","display_name":"Weight-balanced tree","level":4,"score":0.4651075005531311},{"id":"https://openalex.org/C156340839","wikidata":"https://www.wikidata.org/wiki/Q2704791","display_name":"Enumeration","level":2,"score":0.4568125009536743},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.35588401556015015},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3368721902370453},{"id":"https://openalex.org/C94375191","wikidata":"https://www.wikidata.org/wiki/Q11205","display_name":"Arithmetic","level":1,"score":0.32103079557418823},{"id":"https://openalex.org/C163797641","wikidata":"https://www.wikidata.org/wiki/Q2067937","display_name":"Tree structure","level":3,"score":0.13461285829544067},{"id":"https://openalex.org/C84927040","wikidata":"https://www.wikidata.org/wiki/Q6057306","display_name":"Interval tree","level":4,"score":0.08712548017501831},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.060542523860931396},{"id":"https://openalex.org/C24890656","wikidata":"https://www.wikidata.org/wiki/Q82811","display_name":"Acoustics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/bf01932132","is_oa":false,"landing_page_url":"https://doi.org/10.1007/bf01932132","pdf_url":null,"source":{"id":"https://openalex.org/S125499977","display_name":"BIT Numerical Mathematics","issn_l":"0006-3835","issn":["0006-3835","1572-9125"],"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":"BIT","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W1974139773","https://openalex.org/W1993449345","https://openalex.org/W2011885499","https://openalex.org/W2046448824","https://openalex.org/W2053949821","https://openalex.org/W2056975861","https://openalex.org/W2989713547"],"related_works":["https://openalex.org/W2077383771","https://openalex.org/W270522628","https://openalex.org/W2091985989","https://openalex.org/W4367055576","https://openalex.org/W4376140277","https://openalex.org/W2146997899","https://openalex.org/W2501849745","https://openalex.org/W3169685561","https://openalex.org/W4231913352","https://openalex.org/W1510719821"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}