{"id":"https://openalex.org/A5070797772","orcid":"https://orcid.org/0000-0001-5063-5264","observed_orcids":["https://orcid.org/0000-0001-5063-5264","https://orcid.org/0000-0003-3366-5642"],"display_name":"Chang Ma","raw_author_names":["Chang MA","Chang Ma","M. Chang","Ma, Chang"],"full_name":"Chang Ma","works_count":32,"cited_by_count":176,"summary_stats":{"2yr_mean_citedness":3.1,"h_index":8,"i10_index":7},"ids":{"openalex":"https://openalex.org/A5070797772","orcid":"https://orcid.org/0000-0001-5063-5264","observed_orcids":["https://orcid.org/0000-0001-5063-5264","https://orcid.org/0000-0003-3366-5642"]},"affiliations":[{"institution":{"id":"https://openalex.org/I143593769","ror":"https://ror.org/01vyrm377","display_name":"East China University of Science and Technology","country_code":"CN","type":"education","lineage":["https://openalex.org/I143593769"]},"years":[2011]},{"institution":{"id":"https://openalex.org/I154570441","ror":"https://ror.org/02t274463","display_name":"University of California, Santa Barbara","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]},"years":[2002]},{"institution":{"id":"https://openalex.org/I162868743","ror":"https://ror.org/012tb2g32","display_name":"Tianjin University","country_code":"CN","type":"education","lineage":["https://openalex.org/I162868743"]},"years":[2021,2020,2019]},{"institution":{"id":"https://openalex.org/I178232147","ror":"https://ror.org/02wmsc916","display_name":"Guizhou University","country_code":"CN","type":"education","lineage":["https://openalex.org/I178232147"]},"years":[2025]},{"institution":{"id":"https://openalex.org/I180726961","ror":"https://ror.org/01vy4gh70","display_name":"Shenzhen University","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]},"years":[2025]},{"institution":{"id":"https://openalex.org/I20231570","ror":"https://ror.org/02v51f717","display_name":"Peking University","country_code":"CN","type":"education","lineage":["https://openalex.org/I20231570"]},"years":[2022,2017,2013]},{"institution":{"id":"https://openalex.org/I4210112488","ror":"https://ror.org/01fmwwp26","display_name":"China Special Equipment Inspection and Research Institute","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210112488"]},"years":[2024]},{"institution":{"id":"https://openalex.org/I4210164269","ror":"https://ror.org/05h3xe829","display_name":"Shenzhen Nanshan Center for Chronic Disease Control","country_code":"CN","type":"healthcare","lineage":["https://openalex.org/I4210164269"]},"years":[2026,2024]},{"institution":{"id":"https://openalex.org/I4472751","ror":"https://ror.org/05fsfvw79","display_name":"Anhui Normal University","country_code":"CN","type":"education","lineage":["https://openalex.org/I4472751"]},"years":[2025,2024]},{"institution":{"id":"https://openalex.org/I55654194","ror":"https://ror.org/05564e019","display_name":"Inner Mongolia University of Technology","country_code":"CN","type":"education","lineage":["https://openalex.org/I55654194"]},"years":[2024]}],"last_known_institutions":[{"id":"https://openalex.org/I4210164269","ror":"https://ror.org/05h3xe829","display_name":"Shenzhen Nanshan Center for Chronic Disease Control","country_code":"CN","type":"healthcare","lineage":["https://openalex.org/I4210164269"]}],"topics":[{"id":"https://openalex.org/T10638","display_name":"Optical measurement and interference techniques","count":7,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11038","display_name":"Advanced SAR Imaging Techniques","count":5,"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/T10028","display_name":"Topic Modeling","count":3,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10036","display_name":"Advanced Neural Network Applications","count":3,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10181","display_name":"Natural Language Processing Techniques","count":3,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"topic_share":[{"id":"https://openalex.org/T11739","display_name":"Microwave Imaging and Scattering Analysis","value":4.16e-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/T11038","display_name":"Advanced SAR Imaging Techniques","value":3.22e-05,"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/T14339","display_name":"Image Processing and 3D Reconstruction","value":2.51e-05,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10638","display_name":"Optical measurement and interference techniques","value":2.34e-05,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13114","display_name":"Image Processing Techniques and Applications","value":2.21e-05,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"x_concepts":[{"id":"41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","score":0.8690789937973022},{"id":"31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","score":0.8111674785614014},{"id":"154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","score":0.7763313055038452},{"id":"33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","score":0.3389495015144348},{"id":"121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","score":0.23034659028053284}],"counts_by_year":[{"year":1999,"works_count":1,"oa_works_count":0,"cited_by_count":0},{"year":2000,"works_count":4,"oa_works_count":0,"cited_by_count":0},{"year":2002,"works_count":2,"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":0,"oa_works_count":0,"cited_by_count":2},{"year":2013,"works_count":2,"oa_works_count":0,"cited_by_count":1},{"year":2014,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2015,"works_count":0,"oa_works_count":0,"cited_by_count":3},{"year":2016,"works_count":0,"oa_works_count":0,"cited_by_count":8},{"year":2017,"works_count":1,"oa_works_count":1,"cited_by_count":8},{"year":2018,"works_count":0,"oa_works_count":0,"cited_by_count":4},{"year":2019,"works_count":5,"oa_works_count":2,"cited_by_count":3},{"year":2020,"works_count":2,"oa_works_count":1,"cited_by_count":8},{"year":2021,"works_count":1,"oa_works_count":0,"cited_by_count":7},{"year":2022,"works_count":3,"oa_works_count":2,"cited_by_count":17},{"year":2023,"works_count":0,"oa_works_count":0,"cited_by_count":15},{"year":2024,"works_count":5,"oa_works_count":1,"cited_by_count":17},{"year":2025,"works_count":3,"oa_works_count":1,"cited_by_count":37},{"year":2026,"works_count":2,"oa_works_count":2,"cited_by_count":29}],"display_name_alternatives":["Chang MA","Chang Ma","M. Chang","Ma, Chang"],"block_key":"c ma","works_api_url":"https://api.openalex.org/works?filter=author.id:A5070797772","awards_count":0,"awards_api_url":"https://api.openalex.org/awards?filter=investigators.author.id:A5070797772","updated_date":"2026-11-10T14:30:39","created_date":"2016-06-24T00:00:00"}
