{"id":"https://openalex.org/W1996650547","doi":"https://doi.org/10.1016/0004-3702(77)90014-5","title":"Directed recursive labelnode hypergraphs: A new representation-language","display_name":"Directed recursive labelnode hypergraphs: A new representation-language","publication_year":1977,"publication_date":"1977-08-01","ids":{"openalex":"https://openalex.org/W1996650547","doi":"https://doi.org/10.1016/0004-3702(77)90014-5","mag":"1996650547"},"language":"en","primary_location":{"id":"doi:10.1016/0004-3702(77)90014-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0004-3702(77)90014-5","pdf_url":null,"source":{"id":"https://openalex.org/S196139623","display_name":"Artificial Intelligence","issn_l":"0004-3702","issn":["0004-3702","1872-7921"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Artificial Intelligence","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/A5001111183","display_name":"Harold Boley","orcid":"https://orcid.org/0000-0002-8940-7469"},"institutions":[{"id":"https://openalex.org/I159176309","display_name":"Universit\u00e4t Hamburg","ror":"https://ror.org/00g30e956","country_code":"DE","type":"education","lineage":["https://openalex.org/I159176309"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Harold Boley","raw_affiliation_strings":["Institut fuer Informatik, Universit\u00e4t Hamburg, Schl\u00fcterstr. 70, 2000 Hamburg 13, Federal Republic of Germany","Institut fuer Informatik, Universit\u00e4t Hamburg, Hamburg, Federal Republic of Germany#TAB#"],"affiliations":[{"raw_affiliation_string":"Institut fuer Informatik, Universit\u00e4t Hamburg, Schl\u00fcterstr. 70, 2000 Hamburg 13, Federal Republic of Germany","institution_ids":["https://openalex.org/I159176309"]},{"raw_affiliation_string":"Institut fuer Informatik, Universit\u00e4t Hamburg, Hamburg, Federal Republic of Germany#TAB#","institution_ids":["https://openalex.org/I159176309"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5001111183"],"corresponding_institution_ids":["https://openalex.org/I159176309"],"apc_list":{"value":3670,"currency":"USD","value_usd":3670},"apc_paid":null,"fwci":4.9897,"has_fulltext":false,"cited_by_count":52,"citation_normalized_percentile":{"value":0.94831939,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"9","issue":"1","first_page":"49","last_page":"85"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10215","display_name":"Semantic Web and Ontologies","score":0.9965000152587891,"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/T10215","display_name":"Semantic Web and Ontologies","score":0.9965000152587891,"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/T10181","display_name":"Natural Language Processing Techniques","score":0.9955000281333923,"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/T11450","display_name":"Model-Driven Software Engineering Techniques","score":0.9955000281333923,"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/representation","display_name":"Representation (politics)","score":0.7081674337387085},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.665702223777771},{"id":"https://openalex.org/keywords/directed-graph","display_name":"Directed graph","score":0.5076004266738892},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.4878816604614258},{"id":"https://openalex.org/keywords/matching","display_name":"Matching (statistics)","score":0.46347129344940186},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.34291595220565796},{"id":"https://openalex.org/keywords/natural-language-processing","display_name":"Natural language processing","score":0.3389033377170563},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2850226163864136},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.24599289894104004}],"concepts":[{"id":"https://openalex.org/C2776359362","wikidata":"https://www.wikidata.org/wiki/Q2145286","display_name":"Representation (politics)","level":3,"score":0.7081674337387085},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.665702223777771},{"id":"https://openalex.org/C146380142","wikidata":"https://www.wikidata.org/wiki/Q1137726","display_name":"Directed graph","level":2,"score":0.5076004266738892},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.4878816604614258},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.46347129344940186},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.34291595220565796},{"id":"https://openalex.org/C204321447","wikidata":"https://www.wikidata.org/wiki/Q30642","display_name":"Natural language processing","level":1,"score":0.3389033377170563},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2850226163864136},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.24599289894104004},{"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/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C94625758","wikidata":"https://www.wikidata.org/wiki/Q7163","display_name":"Politics","level":2,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1016/0004-3702(77)90014-5","is_oa":false,"landing_page_url":"https://doi.org/10.1016/0004-3702(77)90014-5","pdf_url":null,"source":{"id":"https://openalex.org/S196139623","display_name":"Artificial Intelligence","issn_l":"0004-3702","issn":["0004-3702","1872-7921"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320990","host_organization_name":"Elsevier BV","host_organization_lineage":["https://openalex.org/P4310320990"],"host_organization_lineage_names":["Elsevier BV"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Artificial Intelligence","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Quality Education","score":0.4099999964237213,"id":"https://metadata.un.org/sdg/4"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320324595","display_name":"Universiteit Antwerpen","ror":"https://ror.org/008x57b05"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":42,"referenced_works":["https://openalex.org/W2751752","https://openalex.org/W60164676","https://openalex.org/W61655999","https://openalex.org/W140652779","https://openalex.org/W1482143660","https://openalex.org/W1488252886","https://openalex.org/W1493530513","https://openalex.org/W1500643282","https://openalex.org/W1508363014","https://openalex.org/W1527127371","https://openalex.org/W1544328856","https://openalex.org/W1552704885","https://openalex.org/W1582861705","https://openalex.org/W1601555688","https://openalex.org/W1967374219","https://openalex.org/W2010013526","https://openalex.org/W2014344082","https://openalex.org/W2027482475","https://openalex.org/W2134199742","https://openalex.org/W2144772043","https://openalex.org/W2146316484","https://openalex.org/W2165467455","https://openalex.org/W2175268987","https://openalex.org/W2185907055","https://openalex.org/W2561277497","https://openalex.org/W2914032487","https://openalex.org/W2989733306","https://openalex.org/W3021292343","https://openalex.org/W4285719527","https://openalex.org/W6602464106","https://openalex.org/W6602527391","https://openalex.org/W6629403180","https://openalex.org/W6629665881","https://openalex.org/W6629846547","https://openalex.org/W6632481500","https://openalex.org/W6633149838","https://openalex.org/W6635125888","https://openalex.org/W6678067405","https://openalex.org/W6679797431","https://openalex.org/W6681987914","https://openalex.org/W6770073058","https://openalex.org/W6821371934"],"related_works":["https://openalex.org/W1972035260","https://openalex.org/W2062195135","https://openalex.org/W2794488505","https://openalex.org/W4301594054","https://openalex.org/W2795079307","https://openalex.org/W3125889879","https://openalex.org/W2793058541","https://openalex.org/W3124422538","https://openalex.org/W2295467472","https://openalex.org/W2912612369"],"abstract_inverted_index":null,"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":2},{"year":2016,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}