{"id":"https://openalex.org/W2904671425","doi":"https://doi.org/10.1007/s00779-018-01190-0","title":"Energy-efficient prediction of smartphone unlocking","display_name":"Energy-efficient prediction of smartphone unlocking","publication_year":2018,"publication_date":"2018-12-12","ids":{"openalex":"https://openalex.org/W2904671425","doi":"https://doi.org/10.1007/s00779-018-01190-0","mag":"2904671425"},"language":"en","primary_location":{"id":"doi:10.1007/s00779-018-01190-0","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00779-018-01190-0","pdf_url":null,"source":{"id":"https://openalex.org/S58126648","display_name":"Personal and Ubiquitous Computing","issn_l":"1617-4909","issn":["1617-4909","1617-4917"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Personal and Ubiquitous Computing","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/A5016521970","display_name":"Chu Luo","orcid":"https://orcid.org/0000-0002-3814-1074"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":true,"raw_author_name":"Chu Luo","raw_affiliation_strings":["The University of Melbourne, Melbourne, Australia"],"affiliations":[{"raw_affiliation_string":"The University of Melbourne, Melbourne, Australia","institution_ids":["https://openalex.org/I165779595"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061704516","display_name":"Aku Visuri","orcid":"https://orcid.org/0000-0001-7127-4031"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Aku Visuri","raw_affiliation_strings":["University of Oulu, Oulu, Finland"],"affiliations":[{"raw_affiliation_string":"University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5069507748","display_name":"Simon Klakegg","orcid":"https://orcid.org/0000-0002-2978-6938"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Simon Klakegg","raw_affiliation_strings":["University of Oulu, Oulu, Finland"],"affiliations":[{"raw_affiliation_string":"University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003896144","display_name":"Niels van Berkel","orcid":"https://orcid.org/0000-0001-5106-7692"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Niels van Berkel","raw_affiliation_strings":["The University of Melbourne, Melbourne, Australia"],"affiliations":[{"raw_affiliation_string":"The University of Melbourne, Melbourne, Australia","institution_ids":["https://openalex.org/I165779595"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5024805223","display_name":"Zhanna Sarsenbayeva","orcid":"https://orcid.org/0000-0002-1247-6036"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Zhanna Sarsenbayeva","raw_affiliation_strings":["The University of Melbourne, Melbourne, Australia"],"affiliations":[{"raw_affiliation_string":"The University of Melbourne, Melbourne, Australia","institution_ids":["https://openalex.org/I165779595"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085270359","display_name":"Antti M\u00f6tt\u00f6nen","orcid":null},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Antti M\u00f6tt\u00f6nen","raw_affiliation_strings":["University of Oulu, Oulu, Finland"],"affiliations":[{"raw_affiliation_string":"University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023644163","display_name":"Jorge Gon\u00e7alves","orcid":"https://orcid.org/0000-0002-0117-0322"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Jorge Goncalves","raw_affiliation_strings":["The University of Melbourne, Melbourne, Australia"],"affiliations":[{"raw_affiliation_string":"The University of Melbourne, Melbourne, Australia","institution_ids":["https://openalex.org/I165779595"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019022931","display_name":"Theodoros Anagnostopoulos","orcid":"https://orcid.org/0000-0002-5587-2848"},"institutions":[{"id":"https://openalex.org/I4210094138","display_name":"University of West Attica","ror":"https://ror.org/00r2r5k05","country_code":"GR","type":"education","lineage":["https://openalex.org/I4210094138"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Theodoros Anagnostopoulos","raw_affiliation_strings":["University of West Attica, Athens, Greece"],"affiliations":[{"raw_affiliation_string":"University of West Attica, Athens, Greece","institution_ids":["https://openalex.org/I4210094138"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046354027","display_name":"Denzil Ferreira","orcid":"https://orcid.org/0000-0002-2195-0449"},"institutions":[{"id":"https://openalex.org/I98381234","display_name":"University of Oulu","ror":"https://ror.org/03yj89h83","country_code":"FI","type":"education","lineage":["https://openalex.org/I98381234"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Denzil Ferreira","raw_affiliation_strings":["University of Oulu, Oulu, Finland"],"affiliations":[{"raw_affiliation_string":"University of Oulu, Oulu, Finland","institution_ids":["https://openalex.org/I98381234"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080043050","display_name":"Huber Flores","orcid":"https://orcid.org/0000-0003-4551-629X"},"institutions":[{"id":"https://openalex.org/I133731052","display_name":"University of Helsinki","ror":"https://ror.org/040af2s02","country_code":"FI","type":"education","lineage":["https://openalex.org/I133731052"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Huber Flores","raw_affiliation_strings":["University of Helsinki, Helsinki, Finland"],"affiliations":[{"raw_affiliation_string":"University of Helsinki, Helsinki, Finland","institution_ids":["https://openalex.org/I133731052"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087672786","display_name":"Eduardo Velloso","orcid":"https://orcid.org/0000-0003-4414-2249"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Eduardo Velloso","raw_affiliation_strings":["The University of Melbourne, Melbourne, Australia"],"affiliations":[{"raw_affiliation_string":"The University of Melbourne, Melbourne, Australia","institution_ids":["https://openalex.org/I165779595"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5015873569","display_name":"Vassilis Kostakos","orcid":"https://orcid.org/0000-0003-2804-6038"},"institutions":[{"id":"https://openalex.org/I165779595","display_name":"University of Melbourne","ror":"https://ror.org/01ej9dk98","country_code":"AU","type":"education","lineage":["https://openalex.org/I165779595"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Vassilis Kostakos","raw_affiliation_strings":["The University of Melbourne, Melbourne, Australia"],"affiliations":[{"raw_affiliation_string":"The University of Melbourne, Melbourne, Australia","institution_ids":["https://openalex.org/I165779595"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":12,"corresponding_author_ids":["https://openalex.org/A5016521970"],"corresponding_institution_ids":["https://openalex.org/I165779595"],"apc_list":{"value":2490,"currency":"EUR","value_usd":3090},"apc_paid":null,"fwci":0.391,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.64982339,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":97},"biblio":{"volume":"23","issue":"1","first_page":"159","last_page":"177"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12238","display_name":"Green IT and Sustainability","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12238","display_name":"Green IT and Sustainability","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12607","display_name":"Personal Information Management and User Behavior","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/1802","display_name":"Information Systems and Management"},"field":{"id":"https://openalex.org/fields/18","display_name":"Decision Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T11704","display_name":"Mobile Crowdsensing and Crowdsourcing","score":0.9926000237464905,"subfield":{"id":"https://openalex.org/subfields/1706","display_name":"Computer Science Applications"},"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":0.88322514295578},{"id":"https://openalex.org/keywords/session","display_name":"Session (web analytics)","score":0.6778720617294312},{"id":"https://openalex.org/keywords/predictability","display_name":"Predictability","score":0.6449528336524963},{"id":"https://openalex.org/keywords/event","display_name":"Event (particle physics)","score":0.6193296313285828},{"id":"https://openalex.org/keywords/mobile-phone","display_name":"Mobile phone","score":0.5014955997467041},{"id":"https://openalex.org/keywords/phone","display_name":"Phone","score":0.5002624988555908},{"id":"https://openalex.org/keywords/efficient-energy-use","display_name":"Efficient energy use","score":0.4842238426208496},{"id":"https://openalex.org/keywords/field","display_name":"Field (mathematics)","score":0.4748002588748932},{"id":"https://openalex.org/keywords/software","display_name":"Software","score":0.4213239550590515},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.4066261053085327},{"id":"https://openalex.org/keywords/human\u2013computer-interaction","display_name":"Human\u2013computer interaction","score":0.3814297318458557},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.32611024379730225},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.14515867829322815},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.14273640513420105}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.88322514295578},{"id":"https://openalex.org/C2779182362","wikidata":"https://www.wikidata.org/wiki/Q17126187","display_name":"Session (web analytics)","level":2,"score":0.6778720617294312},{"id":"https://openalex.org/C197640229","wikidata":"https://www.wikidata.org/wiki/Q2534066","display_name":"Predictability","level":2,"score":0.6449528336524963},{"id":"https://openalex.org/C2779662365","wikidata":"https://www.wikidata.org/wiki/Q5416694","display_name":"Event (particle physics)","level":2,"score":0.6193296313285828},{"id":"https://openalex.org/C2777421447","wikidata":"https://www.wikidata.org/wiki/Q17517","display_name":"Mobile phone","level":2,"score":0.5014955997467041},{"id":"https://openalex.org/C2778707766","wikidata":"https://www.wikidata.org/wiki/Q202064","display_name":"Phone","level":2,"score":0.5002624988555908},{"id":"https://openalex.org/C2742236","wikidata":"https://www.wikidata.org/wiki/Q924713","display_name":"Efficient energy use","level":2,"score":0.4842238426208496},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.4748002588748932},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.4213239550590515},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.4066261053085327},{"id":"https://openalex.org/C107457646","wikidata":"https://www.wikidata.org/wiki/Q207434","display_name":"Human\u2013computer interaction","level":1,"score":0.3814297318458557},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.32611024379730225},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.14515867829322815},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.14273640513420105},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"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/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","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/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1007/s00779-018-01190-0","is_oa":false,"landing_page_url":"https://doi.org/10.1007/s00779-018-01190-0","pdf_url":null,"source":{"id":"https://openalex.org/S58126648","display_name":"Personal and Ubiquitous Computing","issn_l":"1617-4909","issn":["1617-4909","1617-4917"],"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":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Personal and Ubiquitous Computing","raw_type":"journal-article"},{"id":"pmh:oai:oulu.fi:nbnfi-fe201903077772","is_oa":false,"landing_page_url":"http://urn.fi/urn:nbn:fi-fe201903077772","pdf_url":null,"source":{"id":"https://openalex.org/S4306400284","display_name":"University of Oulu Repository (University of Oulu)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I98381234","host_organization_name":"University of Oulu","host_organization_lineage":["https://openalex.org/I98381234"],"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/article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7","score":0.9100000262260437}],"awards":[],"funders":[{"id":"https://openalex.org/F4320309327","display_name":"Google","ror":"https://ror.org/00njsd438"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":48,"referenced_works":["https://openalex.org/W1541162784","https://openalex.org/W1768994003","https://openalex.org/W1875061881","https://openalex.org/W1963976346","https://openalex.org/W1966756171","https://openalex.org/W1974962426","https://openalex.org/W1981911218","https://openalex.org/W1988195734","https://openalex.org/W1989261555","https://openalex.org/W1989982952","https://openalex.org/W1996204262","https://openalex.org/W2005567524","https://openalex.org/W2007226101","https://openalex.org/W2009573649","https://openalex.org/W2012035409","https://openalex.org/W2021291149","https://openalex.org/W2031305127","https://openalex.org/W2042974601","https://openalex.org/W2060118520","https://openalex.org/W2070561555","https://openalex.org/W2075743842","https://openalex.org/W2078074240","https://openalex.org/W2083464143","https://openalex.org/W2087898910","https://openalex.org/W2090073010","https://openalex.org/W2095284697","https://openalex.org/W2099913530","https://openalex.org/W2104471998","https://openalex.org/W2106884373","https://openalex.org/W2120761625","https://openalex.org/W2122632934","https://openalex.org/W2122855803","https://openalex.org/W2125801575","https://openalex.org/W2130763650","https://openalex.org/W2131147042","https://openalex.org/W2133253683","https://openalex.org/W2133990480","https://openalex.org/W2137100320","https://openalex.org/W2142678266","https://openalex.org/W2149684865","https://openalex.org/W2152560486","https://openalex.org/W2153635508","https://openalex.org/W2155261478","https://openalex.org/W2165669526","https://openalex.org/W2395408443","https://openalex.org/W2665467093","https://openalex.org/W2907983438","https://openalex.org/W2911964244"],"related_works":["https://openalex.org/W2726467123","https://openalex.org/W2064726690","https://openalex.org/W4252678288","https://openalex.org/W1607297154","https://openalex.org/W4210820789","https://openalex.org/W2913177154","https://openalex.org/W4237782192","https://openalex.org/W4235131201","https://openalex.org/W1541571860","https://openalex.org/W2137338429"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2021,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}