Search Results for author: Ashish Khetan

Found 19 papers, 5 papers with code

TADPOLE: Task ADapted Pre-Training via AnOmaLy DEtection

no code implementations EMNLP 2021 Vivek Madan, Ashish Khetan, Zohar Karnin

In this paper, we address the problem for the case when the downstream corpus is too small for additional pre-training.

Anomaly Detection Data Augmentation +1

Representation Projection Invariance Mitigates Representation Collapse

no code implementations23 May 2022 Anastasia Razdaibiedina, Ashish Khetan, Zohar Karnin, Daniel Khashabi, Vishaal Kapoor, Vivek Madan

In this paper, we propose Representation Projection Invariance (REPINA), a novel regularization method to maintain the information content of representation and reduce representation collapse during fine-tuning by discouraging undesirable changes in the representations.

Pyramid-BERT: Reducing Complexity via Successive Core-set based Token Selection

no code implementations ACL 2022 Xin Huang, Ashish Khetan, Rene Bidart, Zohar Karnin

Transformer-based language models such as BERT have achieved the state-of-the-art performance on various NLP tasks, but are computationally prohibitive.

Domain Adaptation via Anaomaly Detection

no code implementations1 Jan 2021 Vivek Madan, Ashish Khetan, Zohar Karnin

The need for such a method is clear as it is infeasible to collect a large pre-training corpus for every possible domain.

Anomaly Detection Domain Adaptation +1

TabTransformer: Tabular Data Modeling Using Contextual Embeddings

12 code implementations11 Dec 2020 Xin Huang, Ashish Khetan, Milan Cvitkovic, Zohar Karnin

We propose TabTransformer, a novel deep tabular data modeling architecture for supervised and semi-supervised learning.

tabular-classification Unsupervised Pre-training

PruneNet: Channel Pruning via Global Importance

no code implementations22 May 2020 Ashish Khetan, Zohar Karnin

The methods that start with a pretrained network either prune channels uniformly across the layers or prune channels based on the basic statistics of the network parameters.

schuBERT: Optimizing Elements of BERT

no code implementations ACL 2020 Ashish Khetan, Zohar Karnin

In this work we revisit the architecture choices of BERT in efforts to obtain a lighter model.

Differentiable Architecture Compression

no code implementations ICLR 2020 Shashank Singh, Ashish Khetan, Zohar Karnin

In many learning situations, resources at inference time are significantly more constrained than resources at training time.

Image Classification Model Compression

Robust conditional GANs under missing or uncertain labels

no code implementations9 Jun 2019 Kiran Koshy Thekumparampil, Sewoong Oh, Ashish Khetan

Matching the performance of conditional Generative Adversarial Networks with little supervision is an important task, especially in venturing into new domains.

DARC: Differentiable ARchitecture Compression

no code implementations20 May 2019 Shashank Singh, Ashish Khetan, Zohar Karnin

In many learning situations, resources at inference time are significantly more constrained than resources at training time.

Image Classification Model Compression +1

Number of Connected Components in a Graph: Estimation via Counting Patterns

no code implementations1 Dec 2018 Ashish Khetan, Harshay Shah, Sewoong Oh

This representation is crucial in introducing a novel estimator for the number of connected components for general graphs, under the knowledge of the spectral gap of the original graph.

Robustness of Conditional GANs to Noisy Labels

2 code implementations NeurIPS 2018 Kiran Koshy Thekumparampil, Ashish Khetan, Zinan Lin, Sewoong Oh

When the distribution of the noise is known, we introduce a novel architecture which we call Robust Conditional GAN (RCGAN).

Learning From Noisy Singly-labeled Data

1 code implementation ICLR 2018 Ashish Khetan, Zachary C. Lipton, Anima Anandkumar

We propose a new algorithm for jointly modeling labels and worker quality from noisy crowd-sourced data.

PacGAN: The power of two samples in generative adversarial networks

7 code implementations NeurIPS 2018 Zinan Lin, Ashish Khetan, Giulia Fanti, Sewoong Oh

Generative adversarial networks (GANs) are innovative techniques for learning generative models of complex data distributions from samples.

Two-sample testing Vocal Bursts Valence Prediction

Matrix Norm Estimation from a Few Entries

1 code implementation NeurIPS 2017 Ashish Khetan, Sewoong Oh

This paper focuses on the technical challenges in accurately estimating the Schatten norms from a sampling of a matrix.

Collaborative Filtering Matrix Completion

Spectrum Estimation from a Few Entries

no code implementations18 Mar 2017 Ashish Khetan, Sewoong Oh

We propose first estimating the Schatten $k$-norms of a matrix, and then applying Chebyshev approximation to the spectral sum function or applying moment matching in Wasserstein distance to recover the singular values.

Collaborative Filtering Matrix Completion

Computational and Statistical Tradeoffs in Learning to Rank

no code implementations NeurIPS 2016 Ashish Khetan, Sewoong Oh

For massive and heterogeneous modern datasets, it is of fundamental interest to provide guarantees on the accuracy of estimation when computational resources are limited.

Learning-To-Rank

Achieving Budget-optimality with Adaptive Schemes in Crowdsourcing

no code implementations NeurIPS 2016 Ashish Khetan, Sewoong Oh

Under this generalized Dawid-Skene model, we characterize the fundamental trade-off between budget and accuracy.

Data-driven Rank Breaking for Efficient Rank Aggregation

no code implementations21 Jan 2016 Ashish Khetan, Sewoong Oh

Rank aggregation systems collect ordinal preferences from individuals to produce a global ranking that represents the social preference.

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