{"id":"https://openalex.org/A5103909045","orcid":null,"observed_orcids":[],"display_name":"Ahmed Khellaf","raw_author_names":["Ahmed Khellaf","Khellaf, Ahmed"],"full_name":"Ahmed Khellaf","works_count":9,"cited_by_count":91,"summary_stats":{"2yr_mean_citedness":0.0,"h_index":2,"i10_index":1},"ids":{"openalex":"https://openalex.org/A5103909045","orcid":null,"observed_orcids":[]},"affiliations":[{"institution":{"id":"https://openalex.org/I4210097536","ror":"https://ror.org/00xe6p546","display_name":"University of Guelma","country_code":"DZ","type":"education","lineage":["https://openalex.org/I4210097536"]},"years":[2026,2022,2018]}],"last_known_institutions":[{"id":"https://openalex.org/I4210097536","ror":"https://ror.org/00xe6p546","display_name":"University of Guelma","country_code":"DZ","type":"education","lineage":["https://openalex.org/I4210097536"]}],"topics":[{"id":"https://openalex.org/T10188","display_name":"Advanced machining processes and optimization","count":5,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical 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/T10399","display_name":"Hydrocarbon exploration and reservoir analysis","count":3,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"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/T10965","display_name":"Geological formations and processes","count":3,"subfield":{"id":"https://openalex.org/subfields/1904","display_name":"Earth-Surface Processes"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11301","display_name":"Advanced Surface Polishing Techniques","count":3,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T11451","display_name":"Advanced Machining and Optimization Techniques","count":3,"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"}}],"topic_share":[{"id":"https://openalex.org/T11301","display_name":"Advanced Surface Polishing Techniques","value":2.26e-05,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/T11451","display_name":"Advanced Machining and Optimization Techniques","value":2.04e-05,"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/T10188","display_name":"Advanced machining processes and optimization","value":1.38e-05,"subfield":{"id":"https://openalex.org/subfields/2210","display_name":"Mechanical 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/T13113","display_name":"Engineering Technology and Methodologies","value":7.9e-06,"subfield":{"id":"https://openalex.org/subfields/2209","display_name":"Industrial and Manufacturing 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/T10848","display_name":"Advanced Multi-Objective Optimization Algorithms","value":7.8e-06,"subfield":{"id":"https://openalex.org/subfields/1703","display_name":"Computational Theory and Mathematics"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","score":0.8350613117218018},{"id":"107365816","wikidata":"https://www.wikidata.org/wiki/Q114817","display_name":"Surface roughness","score":0.7202426195144653},{"id":"159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","score":0.5367118120193481},{"id":"191897082","wikidata":"https://www.wikidata.org/wiki/Q11467","display_name":"Metallurgy","score":0.5110341310501099},{"id":"127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","score":0.45410001277923584}],"counts_by_year":[{"year":1991,"works_count":2,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":2,"oa_works_count":2,"cited_by_count":0},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":0},{"year":2018,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2019,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2020,"works_count":0,"oa_works_count":0,"cited_by_count":13},{"year":2021,"works_count":0,"oa_works_count":0,"cited_by_count":10},{"year":2022,"works_count":1,"oa_works_count":1,"cited_by_count":19},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":15},{"year":2024,"works_count":0,"oa_works_count":0,"cited_by_count":7},{"year":2025,"works_count":0,"oa_works_count":0,"cited_by_count":9},{"year":2026,"works_count":2,"oa_works_count":1,"cited_by_count":9}],"display_name_alternatives":["Ahmed Khellaf","Khellaf, Ahmed"],"block_key":"a khellaf","works_api_url":"https://api.openalex.org/works?filter=author.id:A5103909045","updated_date":"2026-11-01T11:00:13","created_date":"2016-06-24T00:00:00"}