(19)

(11)

EP 4 244 778 A1

(12)

(43) Date of publication: 20.09.2023 Bulletin 2023/38 (21) Application number: 21815834.3 (22) Date of filing: 05.11.2021

(51) International Patent Classification (IPC):  G06N 10/40(2022.01) G06N 10/20(2022.01) G06N 10/70(2022.01) (52) Cooperative Patent Classification (CPC): G06N 10/40; G06N 10/70; G06N 10/20 (86) International application number: PCT/US2021/058293 (87) International publication number: WO 2022/103666 (19.05.2022 Gazette 2022/20)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 13.11.2020 US 202017098232 13.11.2020 US 202017098237 13.11.2020 US 202017098240 13.11.2020 US 202017098245 13.11.2020 US 202017098248 (71) Applicant: Amazon Technologies Inc. Seattle, Washington 98108-1226 (US)

(72) Inventors: ARRANGOIZ ARRIOLA, Patricio Seattle, Washington 98109-5210 (US) SAFAVI-NAEINI, Amir Seattle, Washington 98109-5210 (US) PAINTER, Oskar Jon Seattle, Washington 98109-5210 (US) HANN, Connor Seattle, Washington 98109-5210 (US) BRANDAO, Fernando Seattle, Washington 98109-5210 (US) NOH, Kyungjoo Seattle, Washington 98109-5210 (US) IVERSON, Joseph Kramer Seattle, Washington 98109-5210 (US) PUTTERMAN, Harald Esko Jakob Seattle, Washington 98109-5210 (US) CHAMBERLAND, Christopher Seattle, Washington 98109-5210 (US) CAMPBELL, Earl Seattle, Washington 98109-5210 (US) (74) Representative: D Young & Co LLP  120 Holborn London EC1N 2DY London EC1N 2DY (GB)