{"id":"https://openalex.org/W2025864627","doi":"https://doi.org/10.1145/114325.103714","title":"A dynamic hash method with signature","display_name":"A dynamic hash method with signature","publication_year":1991,"publication_date":"1991-05-01","ids":{"openalex":"https://openalex.org/W2025864627","doi":"https://doi.org/10.1145/114325.103714","mag":"2025864627"},"language":"en","primary_location":{"is_oa":true,"landing_page_url":"https://doi.org/10.1145/114325.103714","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/114325.103714","source":{"id":"https://openalex.org/S90119964","display_name":"ACM Transactions on Database Systems","issn_l":"0362-5915","issn":["0362-5915","1557-4644"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true},"type":"article","type_crossref":"journal-article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"bronze","oa_url":"https://dl.acm.org/doi/pdf/10.1145/114325.103714","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5000145862","display_name":"F. Cesarini","orcid":null},"institutions":[{"id":"https://openalex.org/I45084792","display_name":"University of Florence","ror":"https://ror.org/04jr1s763","country_code":"IT","type":"education","lineage":["https://openalex.org/I45084792"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"F. Cesarini","raw_affiliation_strings":["University of Florence , Florence , Italy"],"affiliations":[{"raw_affiliation_string":"University of Florence , Florence , Italy","institution_ids":["https://openalex.org/I45084792"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5072297116","display_name":"G. Soda","orcid":"https://orcid.org/0000-0003-1807-1539"},"institutions":[{"id":"https://openalex.org/I45084792","display_name":"University of Florence","ror":"https://ror.org/04jr1s763","country_code":"IT","type":"education","lineage":["https://openalex.org/I45084792"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"G. Soda","raw_affiliation_strings":["University of Florence , Florence , Italy"],"affiliations":[{"raw_affiliation_string":"University of Florence , Florence , Italy","institution_ids":["https://openalex.org/I45084792"]}]}],"institution_assertions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.652,"has_fulltext":true,"fulltext_origin":"pdf","cited_by_count":7,"citation_normalized_percentile":{"value":0.648127,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":74,"max":76},"biblio":{"volume":"16","issue":"2","first_page":"309","last_page":"337"},"is_retracted":false,"is_paratext":false,"primary_topic":{"id":"https://openalex.org/T11269","display_name":"Algorithms and Data Compression","score":0.9998,"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/T11269","display_name":"Algorithms and Data Compression","score":0.9998,"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/T11181","display_name":"Advanced Data Storage Technologies","score":0.9994,"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/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9975,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/signature","display_name":"Signature (topology)","score":0.6326931}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8959676},{"id":"https://openalex.org/C99138194","wikidata":"https://www.wikidata.org/wiki/Q183427","display_name":"Hash function","level":2,"score":0.83132434},{"id":"https://openalex.org/C2779696439","wikidata":"https://www.wikidata.org/wiki/Q7512811","display_name":"Signature (topology)","level":2,"score":0.6326931},{"id":"https://openalex.org/C135783594","wikidata":"https://www.wikidata.org/wiki/Q5678864","display_name":"Hash chain","level":3,"score":0.5370141},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.5156273},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.4651049},{"id":"https://openalex.org/C190157925","wikidata":"https://www.wikidata.org/wiki/Q1968605","display_name":"SHA-2","level":4,"score":0.43766928},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3634867},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.1515845},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","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":1,"locations":[{"is_oa":true,"landing_page_url":"https://doi.org/10.1145/114325.103714","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/114325.103714","source":{"id":"https://openalex.org/S90119964","display_name":"ACM Transactions on Database Systems","issn_l":"0362-5915","issn":["0362-5915","1557-4644"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true}],"best_oa_location":{"is_oa":true,"landing_page_url":"https://doi.org/10.1145/114325.103714","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/114325.103714","source":{"id":"https://openalex.org/S90119964","display_name":"ACM Transactions on Database Systems","issn_l":"0362-5915","issn":["0362-5915","1557-4644"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true},"sustainable_development_goals":[{"score":0.7,"display_name":"Reduced inequalities","id":"https://metadata.un.org/sdg/10"}],"grants":[],"datasets":[],"versions":[],"referenced_works_count":22,"referenced_works":["https://openalex.org/W101498165","https://openalex.org/W1493980934","https://openalex.org/W1503711371","https://openalex.org/W1557376435","https://openalex.org/W1963493704","https://openalex.org/W1965516463","https://openalex.org/W1989315967","https://openalex.org/W1994963518","https://openalex.org/W2003392144","https://openalex.org/W2017899932","https://openalex.org/W2052207834","https://openalex.org/W2060907649","https://openalex.org/W2073767883","https://openalex.org/W2087966340","https://openalex.org/W2091108070","https://openalex.org/W2099117306","https://openalex.org/W2102439204","https://openalex.org/W2148227902","https://openalex.org/W2296380339","https://openalex.org/W2912815185","https://openalex.org/W2915063781","https://openalex.org/W3189934495"],"related_works":["https://openalex.org/W4252190074","https://openalex.org/W4200497776","https://openalex.org/W3151879525","https://openalex.org/W2982222368","https://openalex.org/W2509647301","https://openalex.org/W2154676777","https://openalex.org/W2110701844","https://openalex.org/W2103058157","https://openalex.org/W2069568684","https://openalex.org/W122749164"],"abstract_inverted_index":{"We":[0],"present":[1],"a":[2,11,22,68],"dynamic":[3],"external":[4],"hash":[5,27],"method":[6],"that":[7],"allows":[8],"retrieval":[9],"of":[10,67,86],"record":[12],"by":[13,65],"only":[14],"one":[15,59,79],"access":[16,80],"to":[17,42,53,58,81],"mass":[18],"storage":[19,82],"while":[20],"maintaining":[21],"high":[23],"load":[24],"factor.":[25],"The":[26],"function":[28],"is":[29],"based":[30],"on":[31,50],"generalized":[32],"spiral":[33],"storage.":[34],"Both":[35],"primary":[36,73],"and":[37,46,74,77],"overflow":[38,56,75],"records":[39,76],"are":[40],"allocated":[41],"the":[43,84,95],"same":[44],"file,":[45],"file":[47],"expansion":[48],"depends":[49],"being":[51],"able":[52],"allocate":[54],"every":[55],"chain":[57],"bucket.":[60],"An":[61],"in-core":[62],"index,":[63],"built":[64],"means":[66],"signature":[69],"function,":[70],"discriminates":[71],"between":[72],"assures":[78],"in":[83],"case":[85],"either":[87],"successful":[88],"or":[89],"unsuccessful":[90],"searching.":[91],"Simulation":[92],"results":[93],"confirm":[94],"good":[96],"expected":[97],"performance.":[98]},"cited_by_api_url":"https://api.openalex.org/works?filter=cites:W2025864627","counts_by_year":[{"year":2015,"cited_by_count":1}],"updated_date":"2024-12-12T11:39:18.281040","created_date":"2016-06-24"}