{"id":"https://openalex.org/W2153679132","doi":"https://doi.org/10.1109/infcom.2009.5062245","title":"Faster DFAs through Simple and Efficient Inverse Homomorphisms","display_name":"Faster DFAs through Simple and Efficient Inverse Homomorphisms","publication_year":2009,"publication_date":"2009-04-01","ids":{"openalex":"https://openalex.org/W2153679132","doi":"https://doi.org/10.1109/infcom.2009.5062245","mag":"2153679132"},"language":"en","primary_location":{"id":"doi:10.1109/infcom.2009.5062245","is_oa":false,"landing_page_url":"https://doi.org/10.1109/infcom.2009.5062245","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE INFOCOM 2009","raw_type":"proceedings-article"},"type":"conference-paper","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/A5056667178","display_name":"Domenico Ficara","orcid":"https://orcid.org/0009-0009-0203-331X"},"institutions":[{"id":"https://openalex.org/I108290504","display_name":"University of Pisa","ror":"https://ror.org/03ad39j10","country_code":"IT","type":"education","lineage":["https://openalex.org/I108290504"]},{"id":"https://openalex.org/I4210160382","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Pisa","ror":"https://ror.org/05symbg58","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210160382"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"D. Ficara","raw_affiliation_strings":["Dept. of Inf. Eng., Univ. of Pisa, Pisa","Department of Information Engineering, University of Pisa, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Inf. Eng., Univ. of Pisa, Pisa","institution_ids":["https://openalex.org/I108290504","https://openalex.org/I4210160382"]},{"raw_affiliation_string":"Department of Information Engineering, University of Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021026284","display_name":"Stefano Giordano","orcid":"https://orcid.org/0000-0002-1408-7528"},"institutions":[{"id":"https://openalex.org/I108290504","display_name":"University of Pisa","ror":"https://ror.org/03ad39j10","country_code":"IT","type":"education","lineage":["https://openalex.org/I108290504"]},{"id":"https://openalex.org/I4210160382","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Pisa","ror":"https://ror.org/05symbg58","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210160382"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"S. Giordano","raw_affiliation_strings":["Dept. of Inf. Eng., Univ. of Pisa, Pisa","Department of Information Engineering, University of Pisa, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Inf. Eng., Univ. of Pisa, Pisa","institution_ids":["https://openalex.org/I108290504","https://openalex.org/I4210160382"]},{"raw_affiliation_string":"Department of Information Engineering, University of Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051501620","display_name":"Gregorio Procissi","orcid":"https://orcid.org/0000-0001-5604-6129"},"institutions":[{"id":"https://openalex.org/I108290504","display_name":"University of Pisa","ror":"https://ror.org/03ad39j10","country_code":"IT","type":"education","lineage":["https://openalex.org/I108290504"]},{"id":"https://openalex.org/I4210160382","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Pisa","ror":"https://ror.org/05symbg58","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210160382"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"G. Procissi","raw_affiliation_strings":["Dept. of Inf. Eng., Univ. of Pisa, Pisa","Department of Information Engineering, University of Pisa, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Inf. Eng., Univ. of Pisa, Pisa","institution_ids":["https://openalex.org/I108290504","https://openalex.org/I4210160382"]},{"raw_affiliation_string":"Department of Information Engineering, University of Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070487616","display_name":"Fabio Vitucci","orcid":null},"institutions":[{"id":"https://openalex.org/I108290504","display_name":"University of Pisa","ror":"https://ror.org/03ad39j10","country_code":"IT","type":"education","lineage":["https://openalex.org/I108290504"]},{"id":"https://openalex.org/I4210160382","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Pisa","ror":"https://ror.org/05symbg58","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210160382"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"F. Vitucci","raw_affiliation_strings":["Dept. of Inf. Eng., Univ. of Pisa, Pisa","Department of Information Engineering, University of Pisa, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Inf. Eng., Univ. of Pisa, Pisa","institution_ids":["https://openalex.org/I108290504","https://openalex.org/I4210160382"]},{"raw_affiliation_string":"Department of Information Engineering, University of Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024205614","display_name":"Gianni Antichi","orcid":"https://orcid.org/0000-0002-6063-4975"},"institutions":[{"id":"https://openalex.org/I108290504","display_name":"University of Pisa","ror":"https://ror.org/03ad39j10","country_code":"IT","type":"education","lineage":["https://openalex.org/I108290504"]},{"id":"https://openalex.org/I4210160382","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Pisa","ror":"https://ror.org/05symbg58","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210160382"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"G. Antichi","raw_affiliation_strings":["Dept. of Inf. Eng., Univ. of Pisa, Pisa","Department of Information Engineering, University of Pisa, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Inf. Eng., Univ. of Pisa, Pisa","institution_ids":["https://openalex.org/I108290504","https://openalex.org/I4210160382"]},{"raw_affiliation_string":"Department of Information Engineering, University of Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102953878","display_name":"Andrea Di Pietro","orcid":"https://orcid.org/0009-0007-2668-899X"},"institutions":[{"id":"https://openalex.org/I108290504","display_name":"University of Pisa","ror":"https://ror.org/03ad39j10","country_code":"IT","type":"education","lineage":["https://openalex.org/I108290504"]},{"id":"https://openalex.org/I4210160382","display_name":"Istituto Nazionale di Fisica Nucleare, Sezione di Pisa","ror":"https://ror.org/05symbg58","country_code":"IT","type":"facility","lineage":["https://openalex.org/I160013858","https://openalex.org/I4210160382"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"A. Di Pietro","raw_affiliation_strings":["Dept. of Inf. Eng., Univ. of Pisa, Pisa","Department of Information Engineering, University of Pisa, Italy"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Dept. of Inf. Eng., Univ. of Pisa, Pisa","institution_ids":["https://openalex.org/I108290504","https://openalex.org/I4210160382"]},{"raw_affiliation_string":"Department of Information Engineering, University of Pisa, Italy","institution_ids":["https://openalex.org/I108290504"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"2851","last_page":"2855"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12326","display_name":"Network Packet Processing and Optimization","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"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/T12326","display_name":"Network Packet Processing and Optimization","score":1.0,"subfield":{"id":"https://openalex.org/subfields/1708","display_name":"Hardware and Architecture"},"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/T10400","display_name":"Network Security and Intrusion Detection","score":0.9961000084877014,"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/T11269","display_name":"Algorithms and Data Compression","score":0.9908000230789185,"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/computer-science","display_name":"Computer science","score":0.825986385345459},{"id":"https://openalex.org/keywords/homomorphism","display_name":"Homomorphism","score":0.6730496287345886},{"id":"https://openalex.org/keywords/memory-footprint","display_name":"Memory footprint","score":0.6534793972969055},{"id":"https://openalex.org/keywords/finite-state-machine","display_name":"Finite-state machine","score":0.6155063509941101},{"id":"https://openalex.org/keywords/regular-expression","display_name":"Regular expression","score":0.571506917476654},{"id":"https://openalex.org/keywords/tree-traversal","display_name":"Tree traversal","score":0.5653268694877625},{"id":"https://openalex.org/keywords/deterministic-finite-automaton","display_name":"Deterministic finite automaton","score":0.5637155175209045},{"id":"https://openalex.org/keywords/deep-packet-inspection","display_name":"Deep packet inspection","score":0.5419921875},{"id":"https://openalex.org/keywords/byte","display_name":"Byte","score":0.5277132391929626},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.5119260549545288},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.48951399326324463},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4555136561393738},{"id":"https://openalex.org/keywords/state","display_name":"State (computer science)","score":0.44195878505706787},{"id":"https://openalex.org/keywords/reduction","display_name":"Reduction (mathematics)","score":0.41278257966041565},{"id":"https://openalex.org/keywords/network-packet","display_name":"Network packet","score":0.3622398376464844},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.214885413646698},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1374969184398651},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.08941909670829773}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.825986385345459},{"id":"https://openalex.org/C4042151","wikidata":"https://www.wikidata.org/wiki/Q215111","display_name":"Homomorphism","level":2,"score":0.6730496287345886},{"id":"https://openalex.org/C74912251","wikidata":"https://www.wikidata.org/wiki/Q6815727","display_name":"Memory footprint","level":2,"score":0.6534793972969055},{"id":"https://openalex.org/C167822520","wikidata":"https://www.wikidata.org/wiki/Q176452","display_name":"Finite-state machine","level":2,"score":0.6155063509941101},{"id":"https://openalex.org/C121329065","wikidata":"https://www.wikidata.org/wiki/Q185612","display_name":"Regular expression","level":2,"score":0.571506917476654},{"id":"https://openalex.org/C140745168","wikidata":"https://www.wikidata.org/wiki/Q1210082","display_name":"Tree traversal","level":2,"score":0.5653268694877625},{"id":"https://openalex.org/C104091681","wikidata":"https://www.wikidata.org/wiki/Q837528","display_name":"Deterministic finite automaton","level":3,"score":0.5637155175209045},{"id":"https://openalex.org/C204679922","wikidata":"https://www.wikidata.org/wiki/Q734252","display_name":"Deep packet inspection","level":3,"score":0.5419921875},{"id":"https://openalex.org/C43364308","wikidata":"https://www.wikidata.org/wiki/Q8799","display_name":"Byte","level":2,"score":0.5277132391929626},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.5119260549545288},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.48951399326324463},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4555136561393738},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.44195878505706787},{"id":"https://openalex.org/C111335779","wikidata":"https://www.wikidata.org/wiki/Q3454686","display_name":"Reduction (mathematics)","level":2,"score":0.41278257966041565},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.3622398376464844},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.214885413646698},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1374969184398651},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.08941909670829773},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/infcom.2009.5062245","is_oa":false,"landing_page_url":"https://doi.org/10.1109/infcom.2009.5062245","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE INFOCOM 2009","raw_type":"proceedings-article"},{"id":"pmh:oai:arpi.unipi.it:11568/196256","is_oa":false,"landing_page_url":"http://hdl.handle.net/11568/196256","pdf_url":null,"source":{"id":"https://openalex.org/S4377196265","display_name":"CINECA IRIS Institutial research information system (University of Pisa)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I108290504","host_organization_name":"University of Pisa","host_organization_lineage":["https://openalex.org/I108290504"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"info:eu-repo/semantics/conferenceObject"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W2002089154","https://openalex.org/W2006508099","https://openalex.org/W2015535429","https://openalex.org/W2096474000","https://openalex.org/W2113422425","https://openalex.org/W2113425091","https://openalex.org/W2119423764","https://openalex.org/W2139418336","https://openalex.org/W2149695592","https://openalex.org/W2153244370","https://openalex.org/W2167971042","https://openalex.org/W3144157896","https://openalex.org/W4240018668","https://openalex.org/W4242309756","https://openalex.org/W4302339081","https://openalex.org/W6674967098"],"related_works":["https://openalex.org/W1999162684","https://openalex.org/W2159281873","https://openalex.org/W2113425091","https://openalex.org/W2015535429","https://openalex.org/W2022407883","https://openalex.org/W2137664506","https://openalex.org/W1969792688","https://openalex.org/W4242309756","https://openalex.org/W2051822997","https://openalex.org/W2325454122"],"abstract_inverted_index":{"Performing":[0],"deep":[1],"packet":[2],"inspection":[3],"at":[4],"high":[5],"speed":[6,75],"is":[7,102,132],"a":[8,46,127],"fundamental":[9],"task":[10],"for":[11,37,89],"network":[12],"security":[13],"and":[14,31,124],"application-specific":[15],"services.":[16],"In":[17,40],"state-of-the-art":[18],"systems,":[19],"sets":[20],"of":[21,49,58,65,68,81,108],"signatures":[22],"to":[23,51,104,117,134],"be":[24,118],"searched":[25],"are":[26,35],"described":[27],"by":[28,77],"regular":[29],"expressions,":[30],"finite":[32],"automata":[33],"(FAs)":[34],"employed":[36,103],"the":[38,56,63,79,85,106,111],"search.":[39],"particular,":[41],"deterministic":[42],"FAs":[43],"(DFAs)":[44],"need":[45],"large":[47],"amount":[48,80,107],"memory":[50,66],"represent":[52],"current":[53],"sets,":[54],"therefore":[55],"target":[57],"many":[59],"works":[60],"has":[61],"been":[62],"reduction":[64],"footprint":[67],"DFAs.":[69],"This":[70],"paper,":[71],"instead,":[72],"focuses":[73],"on":[74],"multiplication":[76],"enlarging":[78],"bytes":[82],"observed":[83],"in":[84,110],"text":[86],"(i.e.,":[87],"searching":[88],"k-bytes":[90],"per":[91],"state-traversal).":[92],"For":[93],"this":[94],"purpose,":[95],"an":[96],"interesting":[97],"yet":[98],"simple":[99],"inverse":[100],"homomorphism":[101],"reduce":[105],"transitions":[109],"modified":[112],"DFA.":[113],"The":[114],"algorithm":[115],"results":[116],"remarkably":[119],"faster":[120],"than":[121],"standard":[122],"DFAs,":[123],"provides":[125],"also":[126],"good":[128],"compression":[129],"scheme":[130],"that":[131],"orthogonal":[133],"other":[135],"schemes.":[136]},"counts_by_year":[{"year":2024,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}