Search Results for author: Armita Nourmohammad

Found 12 papers, 7 papers with code

Holographic-(V)AE: an end-to-end SO(3)-Equivariant (Variational) Autoencoder in Fourier Space

1 code implementation30 Sep 2022 Gian Marco Visani, Michael N. Pun, Arman Angaji, Armita Nourmohammad

Group-equivariant neural networks have emerged as a data-efficient approach to solve classification and regression tasks, while respecting the relevant symmetries of the data.

Design of an optimal combination therapy with broadly neutralizing antibodies to suppress HIV-1

no code implementations30 Nov 2021 Colin LaMont, Jakub Otwinowski, Kanika Vanshylla, Henning Gruell, Florian Klein, Armita Nourmohammad

Lastly, we show that a cocktail of three bNAbs is necessary to suppress the chances of viral escape below 1%, and we predict the optimal composition of such a bNAb cocktail.

MINIMALIST: Mutual INformatIon Maximization for Amortized Likelihood Inference from Sampled Trajectories

1 code implementation3 Jun 2021 Giulio Isacchini, Natanael Spisak, Armita Nourmohammad, Thierry Mora, Aleksandra M. Walczak

One class of methods uses data simulated with different parameters to infer models of the likelihood-to-evidence ratio, or equivalently the posterior function.

Time Series Time Series Analysis

Deep generative selection models of T and B cell receptor repertoires with soNNia

1 code implementation5 Nov 2020 Giulio Isacchini, Aleksandra M Walczak, Thierry Mora, Armita Nourmohammad

Additionally to these functional roles, T and B-cell lymphocytes rely on the diversity of their receptor chains to recognize different pathogens.

BIG-bench Machine Learning

Optimal evolutionary decision-making to store immune memory

no code implementations2 Jul 2020 Oskar H Schnaack, Armita Nourmohammad

The adaptive immune system provides a diverse set of molecules that can mount specific responses against a multitude of pathogens.

Decision Making Specificity

SOS: Online probability estimation and generation of T and B cell receptors

no code implementations29 Mar 2020 Giulio Isacchini, Carlos Olivares, Armita Nourmohammad, Aleksandra M. Walczak, Thierry Mora

Recent advances in modelling VDJ recombination and subsequent selection of T and B cell receptors provide useful tools to analyze and compare immune repertoires across time, individuals, and tissues.

Optimal evolutionary control for artificial selection on molecular phenotypes

no code implementations31 Dec 2019 Armita Nourmohammad, Ceyhun Eksin

Controlling an evolving population is an important task in modern molecular genetics, including directed evolution for improving the activity of molecules and enzymes, in breeding experiments in animals and in plants, and in devising public health strategies to suppress evolving pathogens.

On generative models of T-cell receptor sequences

1 code implementation27 Nov 2019 Giulio Isacchini, Zachary Sethna, Yuval Elhanati, Armita Nourmohammad, Aleksandra M. Walczak, Thierry Mora

T-cell receptors (TCR) are key proteins of the adaptive immune system, generated randomly in each individual, whose diversity underlies our ability to recognize infections and malignancies.

Quantitative Methods

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