{"id":"https://openalex.org/A5023873147","orcid":null,"observed_orcids":[],"display_name":"Esa Lappi","raw_author_names":["Esa Lappi","LAPPI, ESA","Lappi, Esa"],"full_name":"Esa Lappi","works_count":17,"cited_by_count":32,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":3,"i10_index":0},"ids":{"openalex":"https://openalex.org/A5023873147","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I2801260548","ror":"https://ror.org/04avm2781","display_name":"Finnish Defence Forces","country_code":"FI","type":"other","lineage":["https://openalex.org/I2801260548"]},"years":[2013,2012,2009]},{"institution":{"id":"https://openalex.org/I4387155790","ror":"https://ror.org/02kpw7e71","display_name":"Puolustusvoimien tutkimuslaitos","country_code":"FI","type":"government","lineage":["https://openalex.org/I2801260548","https://openalex.org/I4387155790"]},"years":[2016]}],"last_known_institutions":null,"topics":[{"id":"https://openalex.org/T13371","display_name":"Military Defense Systems Analysis","count":12,"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/T12888","display_name":"Military Strategy and Technology","count":9,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T11195","display_name":"Simulation Techniques and Applications","count":7,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"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/T11317","display_name":"Fire dynamics and safety research","count":3,"subfield":{"id":"https://openalex.org/subfields/2213","display_name":"Safety, Risk, Reliability and Quality"},"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/T14270","display_name":"Simulation and Modeling Applications","count":3,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T13371","display_name":"Military Defense Systems Analysis","value":0.000162,"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/T12888","display_name":"Military Strategy and Technology","value":5.11e-05,"subfield":{"id":"https://openalex.org/subfields/2207","display_name":"Control and Systems 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/T11195","display_name":"Simulation Techniques and Applications","value":3.63e-05,"subfield":{"id":"https://openalex.org/subfields/1803","display_name":"Management Science and Operations Research"},"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/T12661","display_name":"Iterative Methods for Nonlinear Equations","value":2.05e-05,"subfield":{"id":"https://openalex.org/subfields/2612","display_name":"Numerical Analysis"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T12102","display_name":"Fire effects on concrete materials","value":2e-05,"subfield":{"id":"https://openalex.org/subfields/2205","display_name":"Civil and Structural Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"42475967","wikidata":"https://www.wikidata.org/wiki/Q194292","display_name":"Operations research","score":0.6630236506462097},{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.6407254338264465},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.41255927085876465},{"id":"154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","score":0.40049999952316284},{"id":"201995342","wikidata":"https://www.wikidata.org/wiki/Q682496","display_name":"Systems engineering","score":0.39559105038642883}],"counts_by_year":[{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2005,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2008,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2009,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2010,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2011,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2012,"works_count":4,"oa_works_count":0,"cited_by_count":2},{"year":2013,"works_count":1,"oa_works_count":0,"cited_by_count":2},{"year":2014,"works_count":1,"oa_works_count":0,"cited_by_count":3},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2016,"works_count":1,"oa_works_count":1,"cited_by_count":8},{"year":2017,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":5},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":1},{"year":2023,"works_count":1,"oa_works_count":0,"cited_by_count":1},{"year":2024,"works_count":1,"oa_works_count":1,"cited_by_count":1},{"year":2026,"works_count":1,"oa_works_count":1,"cited_by_count":1}],"display_name_alternatives":["Esa Lappi","LAPPI, ESA","Lappi, Esa"],"block_key":"e lappi","works_api_url":"https://api.openalex.org/works?filter=author.id:A5023873147","awards_count":0,"updated_date":"2026-11-04T11:47:51","created_date":"2016-06-24T00:00:00"}