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A vital step towards the widespread adoption of neural retrieval models is their resource efficiency throughout the training, indexing and query workflows. The neural IR community made great advancements in training effective dual-encoder…

Information Retrieval · Computer Science 2021-05-27 Sebastian Hofstätter , Sheng-Chieh Lin , Jheng-Hong Yang , Jimmy Lin , Allan Hanbury

Despite the recent success on image classification, self-training has only achieved limited gains on structured prediction tasks such as neural machine translation (NMT). This is mainly due to the compositionality of the target space, where…

Computation and Language · Computer Science 2020-12-08 Minkai Xu , Mingxuan Wang , Zhouhan Lin , Hao Zhou , Weinan Zhang , Lei Li

In neural Information Retrieval, ongoing research is directed towards improving the first retriever in ranking pipelines. Learning dense embeddings to conduct retrieval using efficient approximate nearest neighbors methods has proven to…

Information Retrieval · Computer Science 2021-07-14 Thibault Formal , Benjamin Piwowarski , Stéphane Clinchant

Contrastive Language-Image Pre-training (CLIP) has become a cornerstone in vision-language representation learning, powering diverse downstream tasks and serving as the default vision backbone in multimodal large language models (MLLMs).…

Computer Vision and Pattern Recognition · Computer Science 2026-01-29 Chuan Qin , Constantin Venhoff , Sonia Joseph , Fanyi Xiao , Stefan Scherer

Image-text retrieval (ITR) is a task to retrieve the relevant images/texts, given the query from another modality. The conventional dense retrieval paradigm relies on encoding images and texts into dense representations using dual-stream…

Computer Vision and Pattern Recognition · Computer Science 2023-02-07 Ziyang luo , Pu Zhao , Can Xu , Xiubo Geng , Tao Shen , Chongyang Tao , Jing Ma , Qingwen lin , Daxin Jiang

Large language models (LLMs) have demonstrated significant potential in enhancing dense retrieval through query augmentation. However, most existing methods treat the LLM and the retriever as separate modules, overlooking the alignment…

Information Retrieval · Computer Science 2025-05-30 Sijia Yao , Pengcheng Huang , Zhenghao Liu , Yu Gu , Yukun Yan , Shi Yu , Ge Yu

This paper proposes to learn high-performance deep ConvNets with sparse neural connections, referred to as sparse ConvNets, for face recognition. The sparse ConvNets are learned in an iterative way, each time one additional layer is…

Computer Vision and Pattern Recognition · Computer Science 2015-12-08 Yi Sun , Xiaogang Wang , Xiaoou Tang

We consider the problem of accurate sparse fine-tuning of large language models (LLMs), that is, fine-tuning pretrained LLMs on specialized tasks, while inducing sparsity in their weights. On the accuracy side, we observe that standard…

Computation and Language · Computer Science 2023-10-16 Eldar Kurtic , Denis Kuznedelev , Elias Frantar , Michael Goin , Dan Alistarh

We demonstrate the possibility of what we call sparse learning: accelerated training of deep neural networks that maintain sparse weights throughout training while achieving dense performance levels. We accomplish this by developing sparse…

Machine Learning · Computer Science 2019-08-27 Tim Dettmers , Luke Zettlemoyer

Convolutional neural networks (CNNs) have allowed remarkable advances in single image super-resolution (SISR) over the last decade. Most SR methods based on CNNs have focused on achieving performance gains in terms of quality metrics, such…

Computer Vision and Pattern Recognition · Computer Science 2020-07-16 Wonkyung Lee , Junghyup Lee , Dohyung Kim , Bumsub Ham

Masked Discrete Diffusion Models (MDMs) have achieved strong performance across a wide range of multimodal tasks, including image understanding, generation, and editing. However, their inference speed remains suboptimal due to the need to…

Computer Vision and Pattern Recognition · Computer Science 2025-12-17 Shufan Li , Jiuxiang Gu , Kangning Liu , Zhe Lin , Zijun Wei , Aditya Grover , Jason Kuen

As a result of several successful applications in computer vision and image processing, sparse representation (SR) has attracted significant attention in multi-sensor image fusion. Unlike the traditional multiscale transforms (MSTs) that…

Computer Vision and Pattern Recognition · Computer Science 2017-02-14 Qiang Zhang , Yi Liu , Rick S. Blum , Jungong Han , Dacheng Tao

Learned sparse retrieval (LSR) is a family of neural retrieval methods that transform queries and documents into sparse weight vectors aligned with a vocabulary. While LSR approaches like Splade work well for short passages, it is unclear…

Information Retrieval · Computer Science 2023-05-31 Thong Nguyen , Sean MacAvaney , Andrew Yates

Large language models are expensive to deploy. We introduce Sparse Knowledge Distillation (SparseKD), a post-training method that compresses transformer models by combining structured SVD pruning with self-referential knowledge…

Machine Learning · Computer Science 2026-02-03 Aaron R. Flouro , Shawn P. Chadwick

State-of-the-art approaches toward image restoration can be classified into model-based and learning-based. The former - best represented by sparse coding techniques - strive to exploit intrinsic prior knowledge about the unknown…

Image and Video Processing · Electrical Eng. & Systems 2018-11-29 Fangfang Wu , Weisheng Dong , Guangming Shi , Xin Li

Sparse representations using overcomplete dictionaries have proved to be a powerful tool in many signal processing applications such as denoising, super-resolution, inpainting, compression or classification. The sparsity of the…

Machine Learning · Statistics 2018-03-01 Jeremy Aghaei Mazaheri , Elif Vural , Claude Labit , Christine Guillemot

Speculative decoding (SD) accelerates Large Language Model (LLM) generation by using an efficient draft model to propose the next few tokens, which are verified by the LLM in a single forward call, reducing latency while preserving its…

Computation and Language · Computer Science 2025-05-30 Milan Gritta , Huiyin Xue , Gerasimos Lampouras

Diffusion models (DMs) are a powerful type of generative models that have achieved state-of-the-art results in various image synthesis tasks and have shown potential in other domains, such as natural language processing and temporal data…

Machine Learning · Computer Science 2026-02-05 Inês Cardoso Oliveira , Decebal Constantin Mocanu , Luis A. Leiva

Sparse document representations have been widely used to retrieve relevant documents via exact lexical matching. Owing to the pre-computed inverted index, it supports fast ad-hoc search but incurs the vocabulary mismatch problem. Although…

Information Retrieval · Computer Science 2023-10-06 Eunseong Choi , Sunkyung Lee , Minjin Choi , Hyeseon Ko , Young-In Song , Jongwuk Lee

Continual learning seeks to maintain stable adaptation under non-stationary environments, yet this problem becomes particularly challenging in object detection, where most existing methods implicitly assume relatively balanced visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-30 Rangya Zhang , Jiaping Xiao , Lu Bai , Yuhang Zhang , Mir Feroskhan