{"id":"https://openalex.org/W2169227640","doi":"https://doi.org/10.3233/fi-2010-234","title":"A Note on Two-pebble Automata Over Infinite Alphabets","display_name":"A Note on Two-pebble Automata Over Infinite Alphabets","publication_year":2010,"publication_date":"2010-03-01","ids":{"openalex":"https://openalex.org/W2169227640","doi":"https://doi.org/10.3233/fi-2010-234","mag":"2169227640"},"language":"en","primary_location":{"id":"doi:10.3233/fi-2010-234","is_oa":false,"landing_page_url":"https://doi.org/10.3233/fi-2010-234","pdf_url":null,"source":{"id":"https://openalex.org/S39012697","display_name":"Fundamenta Informaticae","issn_l":"0169-2968","issn":["0169-2968","1875-8681"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310318577","host_organization_name":"IOS Press","host_organization_lineage":["https://openalex.org/P4310318577"],"host_organization_lineage_names":["IOS Press"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Fundamenta Informaticae","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/A5103219563","display_name":"Michael Kaminski","orcid":"https://orcid.org/0000-0002-9848-4191"},"institutions":[{"id":"https://openalex.org/I174306211","display_name":"Technion \u2013 Israel Institute of Technology","ror":"https://ror.org/03qryx823","country_code":"IL","type":"education","lineage":["https://openalex.org/I174306211"]}],"countries":["IL"],"is_corresponding":true,"raw_author_name":"Michael Kaminski","raw_affiliation_strings":["Department of Computer Science, Technion \u2013 Israel\r\t\t\t Institute of Technology Haifa 32000, Israel. E-mail: kaminski@cs.technion.ac.il"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Technion \u2013 Israel\r\t\t\t Institute of Technology Haifa 32000, Israel. E-mail: kaminski@cs.technion.ac.il","institution_ids":["https://openalex.org/I174306211"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5060686021","display_name":"Tony Tan","orcid":"https://orcid.org/0009-0005-8341-2004"},"institutions":[{"id":"https://openalex.org/I174306211","display_name":"Technion \u2013 Israel Institute of Technology","ror":"https://ror.org/03qryx823","country_code":"IL","type":"education","lineage":["https://openalex.org/I174306211"]}],"countries":["IL"],"is_corresponding":false,"raw_author_name":"Tony Tan","raw_affiliation_strings":["Department of Computer Science, Technion \u2013 Israel\r\t\t\t Institute of Technology Haifa 32000, Israel. E-mail: kaminski@cs.technion.ac.il"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Technion \u2013 Israel\r\t\t\t Institute of Technology Haifa 32000, Israel. E-mail: kaminski@cs.technion.ac.il","institution_ids":["https://openalex.org/I174306211"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5103219563"],"corresponding_institution_ids":["https://openalex.org/I174306211"],"apc_list":null,"apc_paid":null,"fwci":1.3729,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.82535159,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"98","issue":"4","first_page":"379","last_page":"390"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11567","display_name":"semigroups and automata theory","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T11567","display_name":"semigroups and automata theory","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"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/T12029","display_name":"DNA and Biological Computing","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/1312","display_name":"Molecular Biology"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},{"id":"https://openalex.org/T12072","display_name":"Machine Learning and Algorithms","score":0.9969000220298767,"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/pebble","display_name":"Pebble","score":0.9504059553146362},{"id":"https://openalex.org/keywords/undecidable-problem","display_name":"Undecidable problem","score":0.7752906084060669},{"id":"https://openalex.org/keywords/automaton","display_name":"Automaton","score":0.767159640789032},{"id":"https://openalex.org/keywords/emptiness","display_name":"Emptiness","score":0.6384696960449219},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.45827341079711914},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4364951252937317},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4335162937641144},{"id":"https://openalex.org/keywords/automata-theory","display_name":"Automata theory","score":0.4235788583755493},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.36029404401779175},{"id":"https://openalex.org/keywords/decidability","display_name":"Decidability","score":0.3341296911239624},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.29386693239212036},{"id":"https://openalex.org/keywords/philosophy","display_name":"Philosophy","score":0.0605921745300293},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.0475691556930542}],"concepts":[{"id":"https://openalex.org/C2777760186","wikidata":"https://www.wikidata.org/wiki/Q14673","display_name":"Pebble","level":2,"score":0.9504059553146362},{"id":"https://openalex.org/C192034797","wikidata":"https://www.wikidata.org/wiki/Q3502995","display_name":"Undecidable problem","level":3,"score":0.7752906084060669},{"id":"https://openalex.org/C112505250","wikidata":"https://www.wikidata.org/wiki/Q787116","display_name":"Automaton","level":2,"score":0.767159640789032},{"id":"https://openalex.org/C2779150620","wikidata":"https://www.wikidata.org/wiki/Q1096367","display_name":"Emptiness","level":2,"score":0.6384696960449219},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.45827341079711914},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4364951252937317},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4335162937641144},{"id":"https://openalex.org/C116248031","wikidata":"https://www.wikidata.org/wiki/Q214526","display_name":"Automata theory","level":3,"score":0.4235788583755493},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.36029404401779175},{"id":"https://openalex.org/C153269930","wikidata":"https://www.wikidata.org/wiki/Q430001","display_name":"Decidability","level":2,"score":0.3341296911239624},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.29386693239212036},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0605921745300293},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0475691556930542},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0},{"id":"https://openalex.org/C27206212","wikidata":"https://www.wikidata.org/wiki/Q34178","display_name":"Theology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.3233/fi-2010-234","is_oa":false,"landing_page_url":"https://doi.org/10.3233/fi-2010-234","pdf_url":null,"source":{"id":"https://openalex.org/S39012697","display_name":"Fundamenta Informaticae","issn_l":"0169-2968","issn":["0169-2968","1875-8681"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310318577","host_organization_name":"IOS Press","host_organization_lineage":["https://openalex.org/P4310318577"],"host_organization_lineage_names":["IOS Press"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Fundamenta Informaticae","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4","score":0.47999998927116394}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W1579407214","https://openalex.org/W2002089154","https://openalex.org/W2004193076","https://openalex.org/W2056665285","https://openalex.org/W2081396910","https://openalex.org/W2096478770","https://openalex.org/W2106304123","https://openalex.org/W2107308446","https://openalex.org/W2116976042","https://openalex.org/W3006217603"],"related_works":["https://openalex.org/W2972379433","https://openalex.org/W2989332944","https://openalex.org/W2021891065","https://openalex.org/W2583549044","https://openalex.org/W2119045600","https://openalex.org/W2584984136","https://openalex.org/W2170336571","https://openalex.org/W2962928105","https://openalex.org/W2020140696","https://openalex.org/W4234189135"],"abstract_inverted_index":{"It":[0],"is":[1,10],"shown":[2],"that":[3,13],"the":[4],"emptiness":[5],"problemfor":[6],"two-pebble":[7,14],"automata":[8,15],"languages":[9],"undecidable":[11],"and":[12],"are":[16],"weaker":[17],"than":[18],"three-pebble":[19],"automata.":[20]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}