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Learning semantic-rich representations from raw unlabeled time series data is critical for downstream tasks such as classification and forecasting. Contrastive learning has recently shown its promising representation learning capability in…

机器学习 · 计算机科学 2023-03-31 Qianwen Meng , Hangwei Qian , Yong Liu , Lizhen Cui , Yonghui Xu , Zhiqi Shen

Image retrieval methods that employ hashing or vector quantization have achieved great success by taking advantage of deep learning. However, these approaches do not meet expectations unless expensive label information is sufficient. To…

计算机视觉与模式识别 · 计算机科学 2020-06-15 Young Kyun Jang , Nam Ik Cho

Recently, many software tools have been developed to perform quantification in LC-MS analyses. However, most of them are specific to either a quantification strategy (e.g. label-free or isotopic labelling) or a mass-spectrometry system…

定量方法 · 定量生物学 2011-09-27 Benoît Valot , Olivier Langella , Edlira Nano , Michel Zivy

Real-time object detection plays a vital role in various computer vision applications. However, deploying real-time object detectors on resource-constrained platforms poses challenges due to high computational and memory requirements. This…

计算机视觉与模式识别 · 计算机科学 2023-07-12 Mingze Wang , Huixin Sun , Jun Shi , Xuhui Liu , Baochang Zhang , Xianbin Cao

Supervised contrastive learning has achieved remarkable success by leveraging label information; however, determining positive samples in multi-label scenarios remains a critical challenge. In multi-label supervised contrastive learning…

机器学习 · 计算机科学 2025-09-30 Guangming Huang , Yunfei Long , Cunjin Luo

Embedding high-dimensional data into resource-limited quantum devices remains a significant challenge for practical quantum machine learning. In multimodal face anti-spoofing, while linear compression methods such as principal component…

量子物理 · 物理学 2026-03-31 Wanqi Sun , Jungang Xu , Chenghua Duan

It is critical to deploy complicated neural network models on hardware with limited resources. This paper proposes a novel model quantization method, named the Low-Cost Proxy-Based Adaptive Mixed-Precision Model Quantization (LCPAQ), which…

计算机视觉与模式识别 · 计算机科学 2024-04-04 Junzhe Chen , Qiao Yang , Senmao Tian , Shunli Zhang

In order to deploy deep models in a computationally efficient manner, model quantization approaches have been frequently used. In addition, as new hardware that supports mixed bitwidth arithmetic operations, recent research on mixed…

机器学习 · 计算机科学 2022-07-12 Xijie Huang , Zhiqiang Shen , Shichao Li , Zechun Liu , Xianghong Hu , Jeffry Wicaksana , Eric Xing , Kwang-Ting Cheng

Mixture of autoregressions (MoAR) models provide a model-based approach to the clustering of time series data. The maximum likelihood (ML) estimation of MoAR models requires the evaluation of products of large numbers of densities of normal…

统计计算 · 统计学 2016-10-19 Hien D Nguyen , Geoffrey J McLachlan , Pierre Orban , Pierre Bellec , Andrew L Janke

Multi-target regression is concerned with the prediction of multiple continuous target variables using a shared set of predictors. Two key challenges in multi-target regression are: (a) modelling target dependencies and (b) scalability to…

机器学习 · 计算机科学 2020-03-24 Eleftherios Spyromitros-Xioufis , Konstantinos Sechidis , Ioannis Vlahavas

By summarizing longer consumer health questions into shorter and essential ones, medical question-answering systems can more accurately understand consumer intentions and retrieve suitable answers. However, medical question summarization is…

计算与语言 · 计算机科学 2025-10-01 Wenpeng Lu , Sibo Wei , Xueping Peng , Yi-fei Wang , Usman Naseem , Shoujin Wang

Recently, contrastive learning (CL) plays an important role in exploring complementary information for multi-view clustering (MVC) and has attracted increasing attention. Nevertheless, real-world multi-view data suffer from data…

机器学习 · 计算机科学 2025-12-29 Hongqing He , Jie Xu , Wenyuan Yang , Yonghua Zhu , Guoqiu Wen , Xiaofeng Zhu

Parameter quantization for Large Language Models (LLMs) has attracted increasing attentions recently in reducing memory costs and improving computational efficiency. Early approaches have been widely adopted. However, the existing methods…

机器学习 · 计算机科学 2024-06-04 Haoyu Wang , Bei Liu , Hang Shao , Bo Xiao , Ke Zeng , Guanglu Wan , Yanmin Qian

Post-training of LLMs with RLHF, and subsequently preference optimization algorithms such as DPO, IPO, etc., made a big difference in improving human alignment. However, all such techniques can only work with a single (human) objective. In…

机器学习 · 计算机科学 2025-05-19 Akhil Agnihotri , Rahul Jain , Deepak Ramachandran , Zheng Wen

Prior authorization (PA) requires interpretation of complex and fragmented coverage policies, yet existing retrieval-augmented systems rely on static top-$K$ strategies with fixed numbers of retrieved sections. Such fixed retrieval can be…

信息检索 · 计算机科学 2026-04-08 Ruslan Sharifullin , Maxim Gorshkov , Hannah Clay

This paper suggests the use of projective clustering based product quantization for improving nearest neighbor and max-inner-product vector search (MIPS) algorithms. We provide anisotropic and quantized variants of projective clustering…

数据结构与算法 · 计算机科学 2021-12-07 Aditya Krishnan , Edo Liberty

The ever-growing computational complexity of Large Language Models (LLMs) necessitates efficient deployment strategies. The current state-of-the-art approaches for Post-training Quantization (PTQ) often require calibration to achieve the…

计算与语言 · 计算机科学 2024-05-24 Alireza Ghaffari , Sharareh Younesian , Vahid Partovi Nia , Boxing Chen , Masoud Asgharian

Multilabel representation learning is recognized as a challenging problem that can be associated with either label dependencies between object categories or data-related issues such as the inherent imbalance of positive/negative samples.…

计算机视觉与模式识别 · 计算机科学 2023-07-11 Ahmad Sajedi , Samir Khaki , Konstantinos N. Plataniotis , Mahdi S. Hosseini

The Quality-Diversity (QD) optimization aims to discover a collection of high-performing solutions that simultaneously exhibit diverse behaviors within a user-defined behavior space. This paradigm has stimulated significant research…

机器学习 · 计算机科学 2026-02-03 Xi Lin , Ping Guo , Yilu Liu , Qingfu Zhang , Jianyong Sun

We propose a quantization based approach for fast approximate Maximum Inner Product Search (MIPS). Each database vector is quantized in multiple subspaces via a set of codebooks, learned directly by minimizing the inner product quantization…

人工智能 · 计算机科学 2015-09-07 Ruiqi Guo , Sanjiv Kumar , Krzysztof Choromanski , David Simcha