{"id":"https://openalex.org/W4414760840","doi":"https://doi.org/10.1145/3711875.3729156","title":"Detection and Tracking of Drone Swarms using LiDAR","display_name":"Detection and Tracking of Drone Swarms using LiDAR","publication_year":2025,"publication_date":"2025-06-23","ids":{"openalex":"https://openalex.org/W4414760840","doi":"https://doi.org/10.1145/3711875.3729156"},"language":"en","primary_location":{"id":"doi:10.1145/3711875.3729156","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3711875.3729156","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3711875.3729156","source":null,"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 23rd Annual International Conference on Mobile Systems, Applications and Services","raw_type":"proceedings-article"},"type":"conference-paper","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://dl.acm.org/doi/pdf/10.1145/3711875.3729156","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5001470491","display_name":"Tasnim Azad Abir","orcid":"https://orcid.org/0000-0002-0591-9775"},"institutions":[{"id":"https://openalex.org/I189196454","display_name":"The University of Texas at Arlington","ror":"https://ror.org/019kgqr73","country_code":"US","type":"education","lineage":["https://openalex.org/I189196454"]},{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Tasnim Azad Abir","raw_affiliation_strings":["Airspace Forensics, Amherst, MA, USA","The University of Texas at Arlington, Arlington, TX, USA","University of Massachusetts Amherst, Amherst, MA, USA"],"raw_orcid":"https://orcid.org/0000-0002-0591-9775","affiliations":[{"raw_affiliation_string":"Airspace Forensics, Amherst, MA, USA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"The University of Texas at Arlington, Arlington, TX, USA","institution_ids":["https://openalex.org/I189196454"]},{"raw_affiliation_string":"University of Massachusetts Amherst, Amherst, MA, USA","institution_ids":["https://openalex.org/I24603500"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109565548","display_name":"Vu Le","orcid":"https://orcid.org/0009-0008-7616-7073"},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Vu Le","raw_affiliation_strings":["University of Massachusetts Amherst, Amherst, MA, USA"],"raw_orcid":"https://orcid.org/0009-0008-7616-7073","affiliations":[{"raw_affiliation_string":"University of Massachusetts Amherst, Amherst, MA, USA","institution_ids":["https://openalex.org/I24603500"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5069802566","display_name":"Endrowednes Kuantama","orcid":"https://orcid.org/0000-0002-1615-7243"},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]},{"id":"https://openalex.org/I99043593","display_name":"Macquarie University","ror":"https://ror.org/01sf06y89","country_code":"AU","type":"education","lineage":["https://openalex.org/I99043593"]}],"countries":["AU","US"],"is_corresponding":false,"raw_author_name":"Endrowednes Kuantama","raw_affiliation_strings":["Airspace Forensics, Amherst, MA, USA","Macquarie University, Sydney, New South Wales, Australia"],"raw_orcid":"https://orcid.org/0000-0002-1615-7243","affiliations":[{"raw_affiliation_string":"Airspace Forensics, Amherst, MA, USA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"Macquarie University, Sydney, New South Wales, Australia","institution_ids":["https://openalex.org/I99043593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084884730","display_name":"Pranjol Sen Gupta","orcid":"https://orcid.org/0000-0002-0146-9148"},"institutions":[{"id":"https://openalex.org/I189196454","display_name":"The University of Texas at Arlington","ror":"https://ror.org/019kgqr73","country_code":"US","type":"education","lineage":["https://openalex.org/I189196454"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Pranjol Sen Gupta","raw_affiliation_strings":["University of Texas at Arlington, Arlington, TX, USA"],"raw_orcid":"https://orcid.org/0000-0002-0146-9148","affiliations":[{"raw_affiliation_string":"University of Texas at Arlington, Arlington, TX, USA","institution_ids":["https://openalex.org/I189196454"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5119820124","display_name":"Austin Copley","orcid":null},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Austin Copley","raw_affiliation_strings":["Airspace Forensics, Amherst, MA, USA","University of Massachusetts Amherst, Amherst, MA, USA"],"raw_orcid":"https://orcid.org/0009-0002-2083-5999","affiliations":[{"raw_affiliation_string":"Airspace Forensics, Amherst, MA, USA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"University of Massachusetts Amherst, Amherst, MA, USA","institution_ids":["https://openalex.org/I24603500"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010362532","display_name":"Judith M. Dawes","orcid":"https://orcid.org/0000-0001-9819-1746"},"institutions":[{"id":"https://openalex.org/I99043593","display_name":"Macquarie University","ror":"https://ror.org/01sf06y89","country_code":"AU","type":"education","lineage":["https://openalex.org/I99043593"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Judith Dawes","raw_affiliation_strings":["Macquarie University, Sydney, New South Wales, Australia"],"raw_orcid":"https://orcid.org/0000-0001-9819-1746","affiliations":[{"raw_affiliation_string":"Macquarie University, Sydney, New South Wales, Australia","institution_ids":["https://openalex.org/I99043593"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082235371","display_name":"Mohammad A. Islam","orcid":"https://orcid.org/0000-0002-5778-4366"},"institutions":[{"id":"https://openalex.org/I189196454","display_name":"The University of Texas at Arlington","ror":"https://ror.org/019kgqr73","country_code":"US","type":"education","lineage":["https://openalex.org/I189196454"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Mohammad Islam","raw_affiliation_strings":["University of Texas at Arlington, Arlington, TX, USA"],"raw_orcid":"https://orcid.org/0000-0002-5778-4366","affiliations":[{"raw_affiliation_string":"University of Texas at Arlington, Arlington, TX, USA","institution_ids":["https://openalex.org/I189196454"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085205626","display_name":"Richard Han","orcid":"https://orcid.org/0000-0002-2161-8622"},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]},{"id":"https://openalex.org/I99043593","display_name":"Macquarie University","ror":"https://ror.org/01sf06y89","country_code":"AU","type":"education","lineage":["https://openalex.org/I99043593"]}],"countries":["AU","US"],"is_corresponding":false,"raw_author_name":"Richard Han","raw_affiliation_strings":["Airspace Forensics, Amherst, MA, USA","Macquarie University, Sydney, New South Wales, Australia"],"raw_orcid":"https://orcid.org/0000-0002-2161-8622","affiliations":[{"raw_affiliation_string":"Airspace Forensics, Amherst, MA, USA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"Macquarie University, Sydney, New South Wales, Australia","institution_ids":["https://openalex.org/I99043593"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5077347243","display_name":"Phuc Nguyen","orcid":"https://orcid.org/0000-0001-8078-4463"},"institutions":[{"id":"https://openalex.org/I24603500","display_name":"University of Massachusetts Amherst","ror":"https://ror.org/0072zz521","country_code":"US","type":"education","lineage":["https://openalex.org/I24603500"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Phuc Nguyen","raw_affiliation_strings":["Airspace Forensics, Amherst, MA, USA","University of Massachusetts Amherst, Amherst, MA, USA"],"raw_orcid":"https://orcid.org/0000-0001-8078-4463","affiliations":[{"raw_affiliation_string":"Airspace Forensics, Amherst, MA, USA","institution_ids":["https://openalex.org/I24603500"]},{"raw_affiliation_string":"University of Massachusetts Amherst, Amherst, MA, USA","institution_ids":["https://openalex.org/I24603500"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":true,"cited_by_count":4,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"500","last_page":"514"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11133","display_name":"UAV Applications and Optimization","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T11133","display_name":"UAV Applications and Optimization","score":0.9993000030517578,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10249","display_name":"Distributed Control Multi-Agent Systems","score":0.9945999979972839,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/drone","display_name":"Drone","score":0.9433000087738037},{"id":"https://openalex.org/keywords/leverage","display_name":"Leverage (statistics)","score":0.4779999852180481},{"id":"https://openalex.org/keywords/swarm-behaviour","display_name":"Swarm behaviour","score":0.46779999136924744},{"id":"https://openalex.org/keywords/tracking-system","display_name":"Tracking system","score":0.37209999561309814},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.35690000653266907},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.3564000129699707},{"id":"https://openalex.org/keywords/tracking","display_name":"Tracking (education)","score":0.3504999876022339},{"id":"https://openalex.org/keywords/cluster-analysis","display_name":"Cluster analysis","score":0.34529998898506165}],"concepts":[{"id":"https://openalex.org/C59519942","wikidata":"https://www.wikidata.org/wiki/Q650665","display_name":"Drone","level":2,"score":0.9433000087738037},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6758000254631042},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6140999794006348},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.5792999863624573},{"id":"https://openalex.org/C153083717","wikidata":"https://www.wikidata.org/wiki/Q6535263","display_name":"Leverage (statistics)","level":2,"score":0.4779999852180481},{"id":"https://openalex.org/C181335050","wikidata":"https://www.wikidata.org/wiki/Q14915018","display_name":"Swarm behaviour","level":2,"score":0.46779999136924744},{"id":"https://openalex.org/C154586513","wikidata":"https://www.wikidata.org/wiki/Q4420972","display_name":"Tracking system","level":3,"score":0.37209999561309814},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.35690000653266907},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.3564000129699707},{"id":"https://openalex.org/C2775936607","wikidata":"https://www.wikidata.org/wiki/Q466845","display_name":"Tracking (education)","level":2,"score":0.3504999876022339},{"id":"https://openalex.org/C73555534","wikidata":"https://www.wikidata.org/wiki/Q622825","display_name":"Cluster analysis","level":2,"score":0.34529998898506165},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.3393000066280365},{"id":"https://openalex.org/C51399673","wikidata":"https://www.wikidata.org/wiki/Q504027","display_name":"Lidar","level":2,"score":0.3248000144958496},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.3192000091075897},{"id":"https://openalex.org/C89600930","wikidata":"https://www.wikidata.org/wiki/Q1423946","display_name":"Segmentation","level":2,"score":0.31189998984336853},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.30809998512268066},{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.3034000098705292},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.3034000098705292},{"id":"https://openalex.org/C13662910","wikidata":"https://www.wikidata.org/wiki/Q193139","display_name":"Trajectory","level":2,"score":0.29649999737739563},{"id":"https://openalex.org/C2780009758","wikidata":"https://www.wikidata.org/wiki/Q6804172","display_name":"Measure (data warehouse)","level":2,"score":0.2858999967575073},{"id":"https://openalex.org/C2776151529","wikidata":"https://www.wikidata.org/wiki/Q3045304","display_name":"Object detection","level":3,"score":0.2563999891281128},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.2551000118255615}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3711875.3729156","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3711875.3729156","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3711875.3729156","source":null,"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 23rd Annual International Conference on Mobile Systems, Applications and Services","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1145/3711875.3729156","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3711875.3729156","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3711875.3729156","source":null,"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 23rd Annual International Conference on Mobile Systems, Applications and Services","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1289983310","display_name":"Collaborative Research: CSR:Small:Sustainable Wearable Sensing System for Continuous Tree Health Monitoring","funder_award_id":"2403528","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G5726634749","display_name":"Collaborative Research: CCSS: Continuous Facial Sensing and 3D Reconstruction via Single-ear Wearable Biosensors","funder_award_id":"2401415","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G7219921668","display_name":"Collaborative Research: DESC: Type I: A User-Interactive Approach to Water Management for Sustainable Data Centers: From Water Efficiency to Self-Sufficiency","funder_award_id":"2324915","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G7281113688","display_name":"Utilizing Conducted Electromagnetic Interference (EMI) for Low-Cost Server-Level Power Monitoring in Data Centers","funder_award_id":"2152357","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W4414760840.pdf","grobid_xml":"https://content.openalex.org/works/W4414760840.grobid-xml"},"referenced_works_count":73,"referenced_works":["https://openalex.org/W1977556410","https://openalex.org/W2085261163","https://openalex.org/W2113551198","https://openalex.org/W2146881125","https://openalex.org/W2151631165","https://openalex.org/W2160821342","https://openalex.org/W2170901118","https://openalex.org/W2325424008","https://openalex.org/W2601243251","https://openalex.org/W2625718276","https://openalex.org/W2725499676","https://openalex.org/W2743170747","https://openalex.org/W2802021785","https://openalex.org/W2895257011","https://openalex.org/W2899870034","https://openalex.org/W2964138953","https://openalex.org/W2968296999","https://openalex.org/W2986330405","https://openalex.org/W3013242928","https://openalex.org/W3021999445","https://openalex.org/W3035472153","https://openalex.org/W3088390462","https://openalex.org/W3092550519","https://openalex.org/W3095662029","https://openalex.org/W3110331327","https://openalex.org/W3117551912","https://openalex.org/W3118773768","https://openalex.org/W3134172789","https://openalex.org/W3134305423","https://openalex.org/W3135585884","https://openalex.org/W3156565641","https://openalex.org/W3164526661","https://openalex.org/W3165932260","https://openalex.org/W3207941059","https://openalex.org/W3216283721","https://openalex.org/W4200076741","https://openalex.org/W4200275927","https://openalex.org/W4200614367","https://openalex.org/W4205574455","https://openalex.org/W4205774966","https://openalex.org/W4210674304","https://openalex.org/W4210760290","https://openalex.org/W4213083750","https://openalex.org/W4214734027","https://openalex.org/W4226427184","https://openalex.org/W4234466445","https://openalex.org/W4280578907","https://openalex.org/W4281791312","https://openalex.org/W4289535519","https://openalex.org/W4296705186","https://openalex.org/W4303627857","https://openalex.org/W4308993149","https://openalex.org/W4312127938","https://openalex.org/W4313245725","https://openalex.org/W4313315451","https://openalex.org/W4318777538","https://openalex.org/W4321488911","https://openalex.org/W4321843488","https://openalex.org/W4381163413","https://openalex.org/W4386493592","https://openalex.org/W4386919843","https://openalex.org/W4387251877","https://openalex.org/W4387255167","https://openalex.org/W4387385741","https://openalex.org/W4388266596","https://openalex.org/W4388901570","https://openalex.org/W4390231943","https://openalex.org/W4391026942","https://openalex.org/W4391422345","https://openalex.org/W4392892982","https://openalex.org/W4394621877","https://openalex.org/W4399359185","https://openalex.org/W4402731291"],"related_works":[],"abstract_inverted_index":{"This":[0],"paper":[1],"introduces":[2],"LiSWARM,":[3,151],"a":[4,15,76,87,154,163],"low-cost":[5],"LiDAR":[6],"system":[7,132],"to":[8,58,68,81,89,135,157,174],"detect":[9],"and":[10,21,24,85,104,110,125,128,141,187,194],"track":[11,90],"individual":[12],"drones":[13,27,127,140],"in":[14,28,96,138],"large":[16],"swarm.":[17,98],"LiSWARM":[18,102,176],"provides":[19],"robust":[20,64],"precise":[22],"localization":[23],"recognition":[25],"of":[26,93,150,166],"3D":[29],"space,":[30],"which":[31],"is":[32],"not":[33],"possible":[34],"with":[35,162],"state-of-the-art":[36],"drone":[37,95,120,144,185],"tracking":[38,143],"systems":[39],"that":[40,130],"rely":[41],"on":[42],"radio-frequency":[43],"(RF),":[44],"acoustic,":[45],"or":[46],"RGB":[47],"image":[48],"signatures.":[49],"It":[50],"includes":[51],"(1)":[52],"an":[53],"efficient":[54],"data":[55,71],"processing":[56],"pipeline":[57],"process":[59],"the":[60,73,83,91,97,101,131,148,159,172],"point":[61],"clouds,":[62],"(2)":[63],"priority-aware":[65],"clustering":[66],"algorithms":[67],"isolate":[69],"swarm":[70,164],"from":[72],"background,":[74],"(3)":[75],"reliable":[77],"neural":[78],"network-based":[79],"algorithm":[80],"recognize":[82],"drones,":[84],"(4)":[86],"technique":[88],"trajectory":[92],"every":[94],"We":[99],"develop":[100],"prototype":[103],"validate":[105],"it":[106],"through":[107],"both":[108],"in-lab":[109],"field":[111],"experiments.":[112],"Notably,":[113],"we":[114,152],"measure":[115],"its":[116],"performance":[117,161],"during":[118],"two":[119],"light":[121],"shows":[122],"involving":[123],"150":[124],"500":[126],"confirm":[129],"achieves":[133],"up":[134],"98%":[136],"accuracy":[137],"recognizing":[139],"reliably":[142],"trajectories.":[145],"To":[146],"evaluate":[147],"scalability":[149],"conduct":[153],"thorough":[155],"analysis":[156],"benchmark":[158],"system's":[160],"consisting":[165],"15,000":[167],"drones.":[168],"The":[169],"results":[170],"demonstrate":[171],"potential":[173],"leverage":[175],"for":[177],"other":[178],"applications,":[179],"such":[180,191],"as":[181,192],"battlefield":[182],"operations,":[183],"errant":[184],"detection,":[186],"securing":[188],"sensitive":[189],"areas":[190],"airports":[193],"prisons.":[195]},"counts_by_year":[{"year":2026,"cited_by_count":4}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}