{"id":"https://openalex.org/W7167478000","doi":"https://doi.org/10.1109/icbir69932.2026.11584777","title":"KONSTRAKT-An AI-Powered Job and Project Networking Platform for the Philippine Construction Industry Using TF-IDF and Cosine Similarity Matching","display_name":"KONSTRAKT-An AI-Powered Job and Project Networking Platform for the Philippine Construction Industry Using TF-IDF and Cosine Similarity Matching","publication_year":2026,"publication_date":"2026-05-21","ids":{"openalex":"https://openalex.org/W7167478000","doi":"https://doi.org/10.1109/icbir69932.2026.11584777"},"language":"en","primary_location":{"id":"doi:10.1109/icbir69932.2026.11584777","doi":"https://doi.org/10.1109/icbir69932.2026.11584777","is_oa":true,"landing_page_url":"https://doi.org/10.1109/icbir69932.2026.11584777","pdf_url":null,"source":{"id":"https://openalex.org/S4363608249","display_name":"International Conference on Business and Industrial Research (ICBIR)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 11th International Conference on Business and Industrial Research (ICBIR)","raw_type":"proceedings-article"},"parent_works":[],"lineage":["https://openalex.org/W7167478000"],"child_works_count":0,"type":"conference-paper","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://doi.org/10.1109/icbir69932.2026.11584777","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5140096211","display_name":"John Matthew A. Valdoria","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2800655693","display_name":"Lyceum of the Philippines University","ror":"https://ror.org/027e56k73","country_code":"PH","type":"education","lineage":["https://openalex.org/I2800655693"]}],"countries":["PH"],"is_corresponding":false,"raw_author_name":"John Matthew A. Valdoria","raw_affiliation_strings":["Lyceum of the Philippines University - Manila,Department of College of Technology,Manila,Philippines"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Lyceum of the Philippines University - Manila,Department of College of Technology,Manila,Philippines","institution_ids":["https://openalex.org/I2800655693"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5126300617","display_name":"Arlene Caballero","orcid":"https://orcid.org/0000-0002-7374-4647","observed_orcids":["https://orcid.org/0000-0002-7374-4647"]},"institutions":[{"id":"https://openalex.org/I2800655693","display_name":"Lyceum of the Philippines University","ror":"https://ror.org/027e56k73","country_code":"PH","type":"education","lineage":["https://openalex.org/I2800655693"]}],"countries":["PH"],"is_corresponding":false,"raw_author_name":"Arlene Caballero","raw_affiliation_strings":["Lyceum of the Philippines University - Manila,Department of College of Technology,Manila,Philippines"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Lyceum of the Philippines University - Manila,Department of College of Technology,Manila,Philippines","institution_ids":["https://openalex.org/I2800655693"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5140097497","display_name":"Agather F. Medina","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2800655693","display_name":"Lyceum of the Philippines University","ror":"https://ror.org/027e56k73","country_code":"PH","type":"education","lineage":["https://openalex.org/I2800655693"]}],"countries":["PH"],"is_corresponding":false,"raw_author_name":"Agather F. Medina","raw_affiliation_strings":["Lyceum of the Philippines University - Manila,Department of College of Technology,Manila,Philippines"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Lyceum of the Philippines University - Manila,Department of College of Technology,Manila,Philippines","institution_ids":["https://openalex.org/I2800655693"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I2800655693"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"415","last_page":"420"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13812","display_name":"AI and HR Technologies","score":0.7182999849319458,"subfield":{"id":"https://openalex.org/subfields/1407","display_name":"Organizational Behavior and Human Resource Management"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},"topics":[{"id":"https://openalex.org/T13812","display_name":"AI and HR Technologies","score":0.7182999849319458,"subfield":{"id":"https://openalex.org/subfields/1407","display_name":"Organizational Behavior and Human Resource Management"},"field":{"id":"https://openalex.org/fields/14","display_name":"Business, Management and Accounting"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12501","display_name":"Digital Economy and Work Transformation","score":0.11320000141859055,"subfield":{"id":"https://openalex.org/subfields/3312","display_name":"Sociology and Political Science"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12799","display_name":"Mobile and Web Applications","score":0.052799999713897705,"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/job-matching-platform","display_name":"job matching platform","score":0.7680000066757202},{"id":"https://openalex.org/keywords/construction-workforce","display_name":"construction workforce","score":0.5600000023841858},{"id":"https://openalex.org/keywords/verifiable-credentials","display_name":"verifiable credentials","score":0.7059999704360962},{"id":"https://openalex.org/keywords/tf-idf","display_name":"TF-IDF","score":0.8370000123977661},{"id":"https://openalex.org/keywords/cosine-similarity","display_name":"cosine similarity","score":0.9929999709129333},{"id":"https://openalex.org/keywords/skills-mismatch","display_name":"skills mismatch","score":0.5699999928474426}],"concepts":[{"id":"https://openalex.org/C2984708878","wikidata":"https://www.wikidata.org/wiki/Q385378","display_name":"Construction industry","level":2,"score":0.6330999732017517},{"id":"https://openalex.org/C2780762811","wikidata":"https://www.wikidata.org/wiki/Q1784941","display_name":"Cosine similarity","level":3,"score":0.573199987411499},{"id":"https://openalex.org/C165064840","wikidata":"https://www.wikidata.org/wiki/Q1321061","display_name":"Matching (statistics)","level":2,"score":0.5659000277519226},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.516700029373169},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.3986000120639801},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.3978999853134155},{"id":"https://openalex.org/C117110933","wikidata":"https://www.wikidata.org/wiki/Q811501","display_name":"Construction management","level":2,"score":0.36910000443458557},{"id":"https://openalex.org/C2777986313","wikidata":"https://www.wikidata.org/wiki/Q1661989","display_name":"Industry 4.0","level":2,"score":0.3447999954223633},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.319599986076355},{"id":"https://openalex.org/C143271835","wikidata":"https://www.wikidata.org/wiki/Q254515","display_name":"Similitude","level":2,"score":0.30889999866485596},{"id":"https://openalex.org/C199639397","wikidata":"https://www.wikidata.org/wiki/Q1788588","display_name":"Engineering drawing","level":1,"score":0.29089999198913574},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.28130000829696655},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.2718999981880188},{"id":"https://openalex.org/C107053488","wikidata":"https://www.wikidata.org/wiki/Q2674423","display_name":"Construction engineering","level":1,"score":0.2660999894142151},{"id":"https://openalex.org/C115903868","wikidata":"https://www.wikidata.org/wiki/Q80993","display_name":"Software engineering","level":1,"score":0.25870001316070557}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icbir69932.2026.11584777","doi":"https://doi.org/10.1109/icbir69932.2026.11584777","is_oa":true,"landing_page_url":"https://doi.org/10.1109/icbir69932.2026.11584777","pdf_url":null,"source":{"id":"https://openalex.org/S4363608249","display_name":"International Conference on Business and Industrial Research (ICBIR)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 11th International Conference on Business and Industrial Research (ICBIR)","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1109/icbir69932.2026.11584777","doi":"https://doi.org/10.1109/icbir69932.2026.11584777","is_oa":true,"landing_page_url":"https://doi.org/10.1109/icbir69932.2026.11584777","pdf_url":null,"source":{"id":"https://openalex.org/S4363608249","display_name":"International Conference on Business and Industrial Research (ICBIR)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"conference"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2026 11th International Conference on Business and Industrial Research (ICBIR)","raw_type":"proceedings-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/8","score":1.0,"display_name":"Decent work and economic growth"},{"id":"https://metadata.un.org/sdg/9","score":1.0,"display_name":"Industry, innovation and infrastructure"},{"id":"https://metadata.un.org/sdg/10","score":0.8974000215530396,"display_name":"Reduced inequalities"},{"id":"https://metadata.un.org/sdg/11","score":0.5142999887466431,"display_name":"Sustainable cities and communities"},{"id":"https://metadata.un.org/sdg/1","score":0.41670000553131104,"display_name":"No poverty"}],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W2115747715","https://openalex.org/W2883730939","https://openalex.org/W4386032848","https://openalex.org/W4390453510","https://openalex.org/W4412415157"],"related_works":["https://openalex.org/W4385501033","https://openalex.org/W4240071983","https://openalex.org/W7214759165","https://openalex.org/W7160386191","https://openalex.org/W4413333887","https://openalex.org/W4415958090","https://openalex.org/W7167590547","https://openalex.org/W7203863854","https://openalex.org/W2312228842","https://openalex.org/W7161569100"],"abstract_inverted_index":{"The":[0,133,196],"Philippine":[1],"construction":[2,100],"industry,":[3],"despite":[4],"being":[5],"a":[6,16,81,90,115,173],"key":[7],"economic":[8,200],"driver,":[9],"faces":[10],"persistent":[11],"productivity":[12],"challenges":[13],"stemming":[14],"from":[15,168],"severe":[17],"skills":[18],"mismatch":[19],"and":[20,45,69,92,112,131,141,155,187,194,213,216,220],"dependence":[21],"on":[22,106],"fragmented,":[23],"informal":[24,169],"recruitment":[25,101,170],"networks.":[26],"Approximately":[27],"80%":[28],"of":[29,39,80],"the":[30,46,78,119,166,189,204],"sector's":[31],"workforce":[32,185],"operates":[33],"informally,":[34],"with":[35,177,203],"an":[36,124],"estimated":[37],"65\u201370%":[38],"local":[40],"hiring":[41,84],"conducted":[42],"through":[43],"word-of-mouth":[44],"traditional":[47],"\"standby\"":[48],"system,":[49],"where":[50],"workers":[51,68,193],"physically":[52],"gather":[53],"at":[54],"street":[55],"corners":[56],"awaiting":[57],"daily":[58],"wage":[59],"opportunities.":[60],"These":[61],"inefficiencies":[62],"result":[63],"in":[64,102],"underemployment":[65],"among":[66],"skilled":[67],"recurring":[70],"project":[71],"delays":[72],"for":[73,109,114],"contractors,":[74],"largely":[75],"due":[76],"to":[77,98,145,158,172],"absence":[79],"centralized,":[82],"credentialverified":[83],"channel.":[85],"This":[86],"study":[87],"developed":[88,128],"KONSTRAKT,":[89],"mobile":[91],"web-based":[93],"job":[94],"networking":[95],"platform":[96,197],"designed":[97],"professionalize":[99],"Metro":[103],"Manila.":[104],"Built":[105],"React":[107],"Native":[108],"cross-platform":[110],"accessibility":[111],"Supabase":[113],"secure,":[116],"scalable":[117],"backend,":[118],"platform's":[120],"core":[121],"innovation":[122],"is":[123],"AIpowered":[125],"matching":[126],"engine":[127,134],"using":[129],"Python":[130],"scikit-learn.":[132],"applies":[135],"Term":[136],"Frequency-Inverse":[137],"Document":[138],"Frequency":[139],"(TF-IDF)":[140],"Cosine":[142],"Similarity":[143],"algorithms":[144],"structured":[146],"user":[147],"profiles,":[148],"prioritizing":[149],"verifiable":[150,178],"TESDA":[151],"certifications,":[152],"technical":[153],"skills,":[154],"geolocation":[156],"data":[157],"generate":[159],"accurate":[160],"worker-to-project":[161],"compatibility":[162],"scores.":[163],"By":[164],"transitioning":[165],"industry":[167],"practices":[171],"data-driven":[174],"digital":[175],"marketplace":[176],"credentials,":[179],"KONSTRAKT":[180],"reduces":[181],"search":[182],"friction,":[183],"increases":[184],"visibility,":[186],"bridges":[188],"trust":[190],"gap":[191],"between":[192],"contractors.":[195],"advances":[198],"inclusive":[199],"growth":[201],"aligned":[202],"United":[205],"Nations":[206],"Sustainable":[207],"Development":[208],"Goals":[209],"8":[210],"(Decent":[211],"Work":[212],"Economic":[214],"Growth)":[215],"9":[217],"(Industry,":[218],"Innovation,":[219],"Infrastructure).":[221]},"counts_by_year":[],"updated_date":"2026-11-14T11:04:58.165337","created_date":"2026-07-07T00:00:00"}