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Alexander Liu

5 accepted papers

2026

ARMOR: High-Performance Semi-Structured Pruning via Adaptive Matrix Factorization

ICLR 2026poster

Large language models (LLMs) present significant deployment challenges due to their immense computational and memory requirements. While semi-structured pruning, particularly 2:4 sparsity, offers a path to practical hardware acceleration, existing methods often incur substantial performance degradat…

Cited by 0SourceScholar
2024

Codec-SUPERB: An In-Depth Analysis of Sound Codec Models

ACL 2024findings

The sound codec’s dual roles in minimizing data transmission latency and serving as tokenizers underscore its critical importance.Recent years have witnessed significant developments in codec models.The ideal sound codec should preserve content, paralinguistics, speakers, and audio information.Howev…

2022

Cross-Modal Discrete Representation Learning

ACL 2022long

In contrast to recent advances focusing on high-level representation learning across modalities, in this work we present a self-supervised learning framework that is able to learn a representation that captures finer levels of granularity across different modalities such as concepts or events repres…

2022

Monarch: Expressive Structured Matrices for Efficient and Accurate Training

ICML 2022oral

Large neural networks excel in many domains, but they are expensive to train and fine-tune. A popular approach to reduce their compute or memory requirements is to replace dense weight matrices with structured ones (e.g., sparse, low-rank, Fourier transform). These methods have not seen widespread a…

2021

Spoken Moments: Learning Joint Audio-Visual Representations From Video Descriptions

CVPR 2021poster

When people observe events, they are able to abstract key information and build concise summaries of what is happening. These summaries include contextual and semantic information describing the important high-level details (what, where, who and how) of the observed event and exclude background info…

Cited by 86PDFScholar