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In particular, the results have shown the correctness of the formulation, a drop in the performance of the algorithm when the number of measurements is limited, the competitiveness with respect to some classical baseline methods in the ideal case, and the possibility of improving the performance by increasing the number of measurements.<\/jats:p>","DOI":"10.1007\/s42484-024-00155-2","type":"journal-article","created":{"date-parts":[[2024,4,23]],"date-time":"2024-04-23T16:01:58Z","timestamp":1713888118000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":33,"title":["A quantum k-nearest neighbors algorithm based on the Euclidean distance estimation"],"prefix":"10.1007","volume":"6","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-7475-7183","authenticated-orcid":false,"given":"Enrico","family":"Zardini","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6524-0601","authenticated-orcid":false,"given":"Enrico","family":"Blanzieri","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-5915-6796","authenticated-orcid":false,"given":"Davide","family":"Pastorello","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"297","published-online":{"date-parts":[[2024,4,23]]},"reference":[{"key":"155_CR1","doi-asserted-by":"publisher","unstructured":"Abbas A, Sutter D, Zoufal C et al (2021) The power of quantum neural networks. 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