Search Results for author: Ritambhara Singh

Found 17 papers, 12 papers with code

Revisiting invariances and introducing priors in Gromov-Wasserstein distances

1 code implementation19 Jul 2023 Pinar Demetci, Quang Huy Tran, Ievgen Redko, Ritambhara Singh

Gromov-Wasserstein distance has found many applications in machine learning due to its ability to compare measures across metric spaces and its invariance to isometric transformations.

Transfer Learning

One-Versus-Others Attention: Scalable Multimodal Integration for Clinical Data

1 code implementation11 Jul 2023 Michal Golovanevsky, Eva Schiller, Akira Nair, Ritambhara Singh, Carsten Eickhoff

Multimodal learning models have become increasingly important as they surpass single-modality approaches on diverse tasks ranging from question-answering to autonomous driving.

Autonomous Driving Question Answering

Multimodal Attention-based Deep Learning for Alzheimer's Disease Diagnosis

1 code implementation17 Jun 2022 Michal Golovanevsky, Carsten Eickhoff, Ritambhara Singh

The objective of this study was to develop a novel multimodal deep learning framework to aid medical professionals in AD diagnosis.

Multi-class Classification Multimodal Deep Learning

Unbalanced CO-Optimal Transport

no code implementations30 May 2022 Quang Huy Tran, Hicham Janati, Nicolas Courty, Rémi Flamary, Ievgen Redko, Pinar Demetci, Ritambhara Singh

With this result in hand, we provide empirical evidence of this robustness for the challenging tasks of heterogeneous domain adaptation with and without varying proportions of classes and simultaneous alignment of samples and features across single-cell measurements.

Domain Adaptation

A Joint Graph and Image Convolution Network for Automatic Brain Tumor Segmentation

1 code implementation12 Sep 2021 Camillo Saueressig, Adam Berkley, Reshma Munbodh, Ritambhara Singh

We present a joint graph convolution-image convolution neural network as our submission to the Brain Tumor Segmentation (BraTS) 2021 challenge.

Brain Tumor Segmentation Segmentation +1

DeepDiff: Deep-learning for predicting Differential gene expression from histone modifications

1 code implementation10 Jul 2018 Arshdeep Sekhon, Ritambhara Singh, Yanjun Qi

In this paper, we develop a novel attention-based deep learning architecture, DeepDiff, that provides a unified and end-to-end solution to model and to interpret how dependencies among histone modifications control the differential patterns of gene regulation.

Attend and Predict: Understanding Gene Regulation by Selective Attention on Chromatin

2 code implementations NeurIPS 2017 Ritambhara Singh, Jack Lanchantin, Arshdeep Sekhon, Yanjun Qi

This paper presents an attention-based deep learning approach; we call AttentiveChrome, that uses a unified architecture to model and to interpret dependencies among chromatin factors for controlling gene regulation.

GaKCo: a Fast GApped k-mer string Kernel using COunting

1 code implementation24 Apr 2017 Ritambhara Singh, Arshdeep Sekhon, Kamran Kowsari, Jack Lanchantin, Beilun Wang, Yanjun Qi

This is because current gk-SK uses a trie-based algorithm to calculate co-occurrence of mismatched substrings resulting in a time cost proportional to $O(\Sigma^{M})$.

Memory Matching Networks for Genomic Sequence Classification

no code implementations22 Feb 2017 Jack Lanchantin, Ritambhara Singh, Yanjun Qi

When analyzing the genome, researchers have discovered that proteins bind to DNA based on certain patterns of the DNA sequence known as "motifs".

Classification General Classification

Transfer String Kernel for Cross-Context DNA-Protein Binding Prediction

1 code implementation12 Sep 2016 Ritambhara Singh, Jack Lanchantin, Gabriel Robins, Yanjun Qi

Related methods in the literature fail to perform such predictions accurately, since they do not consider sample distribution shift of sequence segments from an annotated (source) context to an unannotated (target) context.

Transfer Learning

Deep Motif Dashboard: Visualizing and Understanding Genomic Sequences Using Deep Neural Networks

1 code implementation12 Aug 2016 Jack Lanchantin, Ritambhara Singh, Beilun Wang, Yanjun Qi

In this paper, we propose a toolkit called the Deep Motif Dashboard (DeMo Dashboard) which provides a suite of visualization strategies to extract motifs, or sequence patterns from deep neural network models for TFBS classification.

General Classification

DeepChrome: Deep-learning for predicting gene expression from histone modifications

1 code implementation7 Jul 2016 Ritambhara Singh, Jack Lanchantin, Gabriel Robins, Yanjun Qi

To simultaneously visualize the combinatorial interactions among histone modifications, we propose a novel optimization-based technique that generates feature pattern maps from the learnt deep model.

A constrained L1 minimization approach for estimating multiple Sparse Gaussian or Nonparanormal Graphical Models

1 code implementation11 May 2016 Beilun Wang, Ritambhara Singh, Yanjun Qi

Computationally, this task can be formulated as jointly estimating multiple different, but related, sparse Undirected Graphical Models (UGM) from aggregated samples across several contexts.

Deep Motif: Visualizing Genomic Sequence Classifications

3 code implementations4 May 2016 Jack Lanchantin, Ritambhara Singh, Zeming Lin, Yanjun Qi

This paper applies a deep convolutional/highway MLP framework to classify genomic sequences on the transcription factor binding site task.

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