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+---
+layout: fellow
+pagetype: fellow
+shortname: Andreylen
+permalink: /fellows/Andreylen.html
+fellow-name: Andrii Len
+title: Andrii Len - IRIS-HEP Fellow
+active: False
+dates:
+  start: 2022-06-27
+  end: 2022-09-18
+  start: 2023-07-03
+  end: 2023-09-22
+photo: /assets/images/team/fellows-2022/Andrii-Len.jpg
+institution: Taras Shevchenko National University of Kyiv
+e-mail: andrlen2002@gmail.com
+projects:
+- project_title: The usage of Deep Learning for QCD background estimation
+  project_goal: >
+    The focus of the present project is to find optimal deep learning models to be used for the separation of signal and background events.
+  mentors:
+  - Ece Asilar (CERN)
+  proposal: /assets/pdf/fellows-2022/211-proposal-Andrii-Len.pdf
+- project_title: Predict CMS data popularity to improve its availability for physics analysis
+  project_goal: >
+    The focus of the project is to aggregate and extract data usage information, find data's features and optimal Machine Learning models to predict the probability that a dataset will be accessed in the next month.
+  mentors:
+  - Dmytro Kovalskyi, Rahul Chauhan, Hasan Ozturk
+  proposal: /assets/pdf/fellows-2023/U009-proposal-Andrii-Len.pdf
+presentations:
+- title: The usage of Deep Learning for QCD background estimation
+  date: 2022-10-19
+  url: https://indico.cern.ch/event/1199559/contributions/5097272/attachments/2531407/4355497/IRIS-Hep%20Andrii_Len_Final_Presentation.pdf
+  meeting: IRIS-HEP Fellows Presentations 2022
+  meetingurl: https://indico.cern.ch/event/1199559/
+  recordingurl: https://youtu.be/gEaqn7C9ipY
+  focus-area: ia
+current_status:
+github-username: Andreylen
+---