{"id":"https://openalex.org/W2740931259","doi":"https://doi.org/10.1007/978-3-319-64471-4_7","title":"On Computing Temporal Aggregates over Null Time Intervals","display_name":"On Computing Temporal Aggregates over Null Time Intervals","publication_year":2017,"publication_date":"2017-01-01","ids":{"openalex":"https://openalex.org/W2740931259","doi":"https://doi.org/10.1007/978-3-319-64471-4_7","mag":"2740931259"},"language":"en","primary_location":{"id":"doi:10.1007/978-3-319-64471-4_7","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-319-64471-4_7","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"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":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"},"type":"book-chapter","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/A5101761689","display_name":"Kai Cheng","orcid":"https://orcid.org/0000-0002-4340-8482"},"institutions":[{"id":"https://openalex.org/I199028557","display_name":"Kyushu Sangyo University","ror":"https://ror.org/01wqrpc44","country_code":"JP","type":"education","lineage":["https://openalex.org/I199028557"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Kai Cheng","raw_affiliation_strings":["Graduate School of Information Science, Kyushu Sangyo University, 2-3-1, Mtsukadai, Higashi-ku, Fukuoka, 813-8503, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Information Science, Kyushu Sangyo University, 2-3-1, Mtsukadai, Higashi-ku, Fukuoka, 813-8503, Japan","institution_ids":["https://openalex.org/I199028557"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5101761689"],"corresponding_institution_ids":["https://openalex.org/I199028557"],"apc_list":{"value":5000,"currency":"EUR","value_usd":5392},"apc_paid":null,"fwci":1.0026,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.76268032,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"67","last_page":"79"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":1.0,"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":1.0,"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/T10317","display_name":"Advanced Database Systems and Queries","score":0.9997000098228455,"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/T10538","display_name":"Data Mining Algorithms and Applications","score":0.996399998664856,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/null","display_name":"Null (SQL)","score":0.7956814765930176},{"id":"https://openalex.org/keywords/interval","display_name":"Interval (graph theory)","score":0.7350523471832275},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7137859463691711},{"id":"https://openalex.org/keywords/tuple","display_name":"Tuple","score":0.6252608895301819},{"id":"https://openalex.org/keywords/temporal-database","display_name":"Temporal database","score":0.512454092502594},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4699844419956207},{"id":"https://openalex.org/keywords/null-model","display_name":"Null model","score":0.4554036557674408},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.34611836075782776},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23580318689346313},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.23498868942260742},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.1917722225189209},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.13996195793151855}],"concepts":[{"id":"https://openalex.org/C203763787","wikidata":"https://www.wikidata.org/wiki/Q371029","display_name":"Null (SQL)","level":2,"score":0.7956814765930176},{"id":"https://openalex.org/C2778067643","wikidata":"https://www.wikidata.org/wiki/Q166507","display_name":"Interval (graph theory)","level":2,"score":0.7350523471832275},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7137859463691711},{"id":"https://openalex.org/C118930307","wikidata":"https://www.wikidata.org/wiki/Q600590","display_name":"Tuple","level":2,"score":0.6252608895301819},{"id":"https://openalex.org/C77277458","wikidata":"https://www.wikidata.org/wiki/Q1969246","display_name":"Temporal database","level":2,"score":0.512454092502594},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4699844419956207},{"id":"https://openalex.org/C36382193","wikidata":"https://www.wikidata.org/wiki/Q7068966","display_name":"Null model","level":2,"score":0.4554036557674408},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.34611836075782776},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23580318689346313},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.23498868942260742},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.1917722225189209},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.13996195793151855}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1007/978-3-319-64471-4_7","is_oa":false,"landing_page_url":"https://doi.org/10.1007/978-3-319-64471-4_7","pdf_url":null,"source":{"id":"https://openalex.org/S106296714","display_name":"Lecture notes in computer science","issn_l":"0302-9743","issn":["0302-9743","1611-3349"],"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":"book series"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Lecture Notes in Computer Science","raw_type":"book-chapter"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Reduced inequalities","id":"https://metadata.un.org/sdg/10","score":0.41999998688697815}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1504193486","https://openalex.org/W1538380742","https://openalex.org/W1579902393","https://openalex.org/W1782046864","https://openalex.org/W2023578311","https://openalex.org/W2028472574","https://openalex.org/W2125317812","https://openalex.org/W2161484642","https://openalex.org/W2491406964","https://openalex.org/W4251391716"],"related_works":["https://openalex.org/W2378195143","https://openalex.org/W2785512550","https://openalex.org/W2261099484","https://openalex.org/W2590847585","https://openalex.org/W2410708459","https://openalex.org/W4288633237","https://openalex.org/W2026080208","https://openalex.org/W1535743328","https://openalex.org/W4283071360","https://openalex.org/W1991717786"],"abstract_inverted_index":null,"counts_by_year":[{"year":2023,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}