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Pre-trained Transformer language models (LM) have become go-to text representation encoders. Prior research fine-tunes deep LMs to encode text sequences such as sentences and passages into single dense vector representations for efficient…

计算与语言 · 计算机科学 2021-09-22 Luyu Gao , Jamie Callan

In this paper, we aim at automatically searching an efficient network architecture for dense image prediction. Particularly, we follow the encoder-decoder style and focus on designing a connectivity structure for the decoder. To achieve…

计算机视觉与模式识别 · 计算机科学 2019-08-06 Huikai Wu , Junge Zhang , Kaiqi Huang

Recent rapid advancements in deep pre-trained language models and the introductions of large datasets have powered research in embedding-based dense retrieval. While several good research papers have emerged, many of them come with their…

信息检索 · 计算机科学 2022-03-14 Luyu Gao , Xueguang Ma , Jimmy Lin , Jamie Callan

Retrieval over large codebases is a key component of modern LLM-based software engineering systems. Existing approaches predominantly rely on dense embedding models, while learned sparse retrieval (LSR) remains largely unexplored for code.…

信息检索 · 计算机科学 2026-03-24 Simon Lupart , Maxime Louis , Thibault Formal , Hervé Déjean , Stéphane Clinchant

Learned sparse retrieval (LSR) is a family of first-stage retrieval methods that are trained to generate sparse lexical representations of queries and documents for use with an inverted index. Many LSR methods have been recently introduced,…

信息检索 · 计算机科学 2023-03-28 Thong Nguyen , Sean MacAvaney , Andrew Yates

Behavioral patterns captured in embeddings learned from interaction data are pivotal across various stages of production recommender systems. However, in the initial retrieval stage, practitioners face an inherent tradeoff between embedding…

信息检索 · 计算机科学 2026-02-11 Vojtěch Vančura , Martin Spišák , Rodrigo Alves , Ladislav Peška

The non-uniform sampling is a powerful approach to enable fast acquisition but requires sophisticated reconstruction algorithms. Faithful reconstruction from partial sampled exponentials is highly expected in general signal processing and…

Techniques for automatically designing deep neural network architectures such as reinforcement learning based approaches have recently shown promising results. However, their success is based on vast computational resources (e.g. hundreds…

机器学习 · 计算机科学 2017-11-22 Han Cai , Tianyao Chen , Weinan Zhang , Yong Yu , Jun Wang

Recent binary representation learning models usually require sophisticated binary optimization, similarity measure or even generative models as auxiliaries. However, one may wonder whether these non-trivial components are needed to…

计算机视觉与模式识别 · 计算机科学 2019-08-27 Yuming Shen , Jie Qin , Jiaxin Chen , Li Liu , Fan Zhu

Blind image restoration is a non-convex problem which involves restoration of images from an unknown blur kernel. The factors affecting the performance of this restoration are how much prior information about an image and a blur kernel are…

计算机视觉与模式识别 · 计算机科学 2015-12-15 Chia-Chen Lee , Wen-Liang Hwang

Many recent approaches of passage retrieval are using dense embeddings generated from deep neural models, called "dense passage retrieval". The state-of-the-art end-to-end dense passage retrieval systems normally deploy a deep neural model…

信息检索 · 计算机科学 2022-10-11 Yifan Wang , Haodi Ma , Daisy Zhe Wang

A central problem in neuroscience is reconstructing neuronal circuits on the synapse level. Due to a wide range of scales in brain architecture such reconstruction requires imaging that is both high-resolution and high-throughput. Existing…

计算机视觉与模式识别 · 计算机科学 2012-10-03 Tao Hu , Juan Nunez-Iglesias , Shiv Vitaladevuni , Lou Scheffer , Shan Xu , Mehdi Bolorizadeh , Harald Hess , Richard Fetter , Dmitri Chklovskii

Recent research demonstrates the effectiveness of using fine-tuned language models~(LM) for dense retrieval. However, dense retrievers are hard to train, typically requiring heavily engineered fine-tuning pipelines to realize their full…

信息检索 · 计算机科学 2021-08-13 Luyu Gao , Jamie Callan

In this paper we propose a convolutional neural network that is designed to upsample a series of sparse range measurements based on the contextual cues gleaned from a high resolution intensity image. Our approach draws inspiration from…

计算机视觉与模式识别 · 计算机科学 2019-07-11 Shreyas S. Shivakumar , Ty Nguyen , Ian D. Miller , Steven W. Chen , Vijay Kumar , Camillo J. Taylor

Learned Sparse Retrieval (LSR) combines the efficiency of bi-encoders with the transparency of lexical matching, but existing approaches struggle to scale beyond English. We introduce MILCO, an LSR architecture that maps queries and…

信息检索 · 计算机科学 2026-03-20 Thong Nguyen , Yibin Lei , Jia-Huei Ju , Eugene Yang , Andrew Yates

Rapid advances in GPU hardware and multiple areas of Deep Learning open up a new opportunity for billion-scale information retrieval with exhaustive search. Building on top of the powerful concept of semantic learning, this paper proposes a…

信息检索 · 计算机科学 2018-02-20 Ying Shan , Jian Jiao , Jie Zhu , JC Mao

Linear probes and sparse autoencoders consistently recover meaningful structure from transformer representations -- yet why should such simple methods succeed in deep, nonlinear systems? We show this is not merely an empirical regularity…

机器学习 · 计算机科学 2026-02-11 Andres Saurez , Yousung Lee , Dongsoo Har

Image compression and reconstruction are crucial for various digital applications. While contemporary neural compression methods achieve impressive compression rates, the adoption of such technology has been largely hindered by the…

机器学习 · 计算机科学 2025-10-06 Ethan G. Rogers , Cheng Wang

If modern computers are sometimes superior to humans in some specialized tasks such as playing chess or browsing a large database, they can't beat the efficiency of biological vision for such simple tasks as recognizing and following an…

神经元与认知 · 定量生物学 2009-11-13 Laurent Perrinet

Although remarkable progress has been made on single image super-resolution due to the revival of deep convolutional neural networks, deep learning methods are confronted with the challenges of computation and memory consumption in…

计算机视觉与模式识别 · 计算机科学 2020-01-01 Dehua Song , Chang Xu , Xu Jia , Yiyi Chen , Chunjing Xu , Yunhe Wang