Counting is almost all you need

The immune memory repertoire encodes the history of present and past infections and immunological attributes of the individual. As such, multiple methods were proposed to use T-cell receptor (TCR) repertoires to detect disease history. We here show that the counting method outperforms two leading al...

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Main Authors: Ofek Akerman, Haim Isakov, Reut Levi, Vladimir Psevkin, Yoram Louzoun
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Immunology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fimmu.2022.1031011/full
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author Ofek Akerman
Ofek Akerman
Haim Isakov
Reut Levi
Vladimir Psevkin
Yoram Louzoun
author_facet Ofek Akerman
Ofek Akerman
Haim Isakov
Reut Levi
Vladimir Psevkin
Yoram Louzoun
author_sort Ofek Akerman
collection DOAJ
description The immune memory repertoire encodes the history of present and past infections and immunological attributes of the individual. As such, multiple methods were proposed to use T-cell receptor (TCR) repertoires to detect disease history. We here show that the counting method outperforms two leading algorithms. We then show that the counting can be further improved using a novel attention model to weigh the different TCRs. The attention model is based on the projection of TCRs using a Variational AutoEncoder (VAE). Both counting and attention algorithms predict better than current leading algorithms whether the host had CMV and its HLA alleles. As an intermediate solution between the complex attention model and the very simple counting model, we propose a new Graph Convolutional Network approach that obtains the accuracy of the attention model and the simplicity of the counting model. The code for the models used in the paper is provided at: https://github.com/louzounlab/CountingIsAlmostAllYouNeed.
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spelling doaj.art-e0d7d7ca99f64f8c8ccfd092235b73b32023-01-20T12:54:27ZengFrontiers Media S.A.Frontiers in Immunology1664-32242023-01-011310.3389/fimmu.2022.10310111031011Counting is almost all you needOfek Akerman0Ofek Akerman1Haim Isakov2Reut Levi3Vladimir Psevkin4Yoram Louzoun5Department of Mathematics, Bar-Ilan University, Ramat Gan, IsraelDepartment of Computer Science, Bar-Ilan University, Ramat Gan, IsraelDepartment of Mathematics, Bar-Ilan University, Ramat Gan, IsraelDepartment of Mathematics, Bar-Ilan University, Ramat Gan, IsraelDepartment of Mathematics, Bar-Ilan University, Ramat Gan, IsraelDepartment of Mathematics, Bar-Ilan University, Ramat Gan, IsraelThe immune memory repertoire encodes the history of present and past infections and immunological attributes of the individual. As such, multiple methods were proposed to use T-cell receptor (TCR) repertoires to detect disease history. We here show that the counting method outperforms two leading algorithms. We then show that the counting can be further improved using a novel attention model to weigh the different TCRs. The attention model is based on the projection of TCRs using a Variational AutoEncoder (VAE). Both counting and attention algorithms predict better than current leading algorithms whether the host had CMV and its HLA alleles. As an intermediate solution between the complex attention model and the very simple counting model, we propose a new Graph Convolutional Network approach that obtains the accuracy of the attention model and the simplicity of the counting model. The code for the models used in the paper is provided at: https://github.com/louzounlab/CountingIsAlmostAllYouNeed.https://www.frontiersin.org/articles/10.3389/fimmu.2022.1031011/fullrepertoire classificationimmune repertoiremachine learningattentiongraphsT cells
spellingShingle Ofek Akerman
Ofek Akerman
Haim Isakov
Reut Levi
Vladimir Psevkin
Yoram Louzoun
Counting is almost all you need
Frontiers in Immunology
repertoire classification
immune repertoire
machine learning
attention
graphs
T cells
title Counting is almost all you need
title_full Counting is almost all you need
title_fullStr Counting is almost all you need
title_full_unstemmed Counting is almost all you need
title_short Counting is almost all you need
title_sort counting is almost all you need
topic repertoire classification
immune repertoire
machine learning
attention
graphs
T cells
url https://www.frontiersin.org/articles/10.3389/fimmu.2022.1031011/full
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AT haimisakov countingisalmostallyouneed
AT reutlevi countingisalmostallyouneed
AT vladimirpsevkin countingisalmostallyouneed
AT yoramlouzoun countingisalmostallyouneed