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Segmentation of medical images is an essential part in the process of diagnostics. Physicians require an automatic, robust and valid results. Hidden Markov Random Fields (HMRF) provide powerful model. This latter models the segmentation…

图像与视频处理 · 电气工程与系统科学 2020-05-20 EL-Hachemi Guerrout , Ramdane Mahiou , Dominique Michelucci , Boukabene Randa , Ouali Assia

We present LS-CRF, a new method for very efficient large-scale training of Conditional Random Fields (CRFs). It is inspired by existing closed-form expressions for the maximum likelihood parameters of a generative graphical model with tree…

机器学习 · 计算机科学 2014-03-28 Alexander Kolesnikov , Matthieu Guillaumin , Vittorio Ferrari , Christoph H. Lampert

Current State-of-the-Art models in Named Entity Recognition (NER) are neural models with a Conditional Random Field (CRF) as the final network layer, and pre-trained "contextual embeddings". The CRF layer is used to facilitate global…

计算与语言 · 计算机科学 2021-03-25 Brian Lester , Daniel Pressel , Amy Hemmeter , Sagnik Ray Choudhury

A Kernel Adaptive Metropolis-Hastings algorithm is introduced, for the purpose of sampling from a target distribution with strongly nonlinear support. The algorithm embeds the trajectory of the Markov chain into a reproducing kernel Hilbert…

This paper addresses the problem of video object segmentation, where the initial object mask is given in the first frame of an input video. We propose a novel spatio-temporal Markov Random Field (MRF) model defined over pixels to handle…

计算机视觉与模式识别 · 计算机科学 2018-03-28 Linchao Bao , Baoyuan Wu , Wei Liu

Neural network models have recently received heated research attention in the natural language processing community. Compared with traditional models with discrete features, neural models have two main advantages. First, they take…

计算与语言 · 计算机科学 2017-08-25 Jie Yang , Zhiyang Teng , Meishan Zhang , Yue Zhang

The use of LLMs for natural language processing has become a popular trend in the past two years, driven by their formidable capacity for context comprehension and learning, which has inspired a wave of research from academics and industry…

计算与语言 · 计算机科学 2024-04-09 Faren Yan , Peng Yu , Xin Chen

Large language models have shown impressive capabilities across a variety of NLP tasks, yet their generating text autoregressively is time-consuming. One way to speed them up is speculative decoding, which generates candidate segments (a…

计算与语言 · 计算机科学 2024-01-15 Sen Yang , Shujian Huang , Xinyu Dai , Jiajun Chen

Tensor network (TN) techniques - often used in the context of quantum many-body physics - have shown promise as a tool for tackling machine learning (ML) problems. The application of TNs to ML, however, has mostly focused on supervised and…

统计力学 · 物理学 2020-02-14 Edward Gillman , Dominic C. Rose , Juan P. Garrahan

We propose a simple tractable pair hidden Markov model for pairwise sequence alignment that accounts for the presence of short tandem repeats. Using the framework of gain functions, we design several optimization criteria for decoding this…

定量方法 · 定量生物学 2013-07-31 Michal Nánási , Tomáš Vinař , Broňa Brejová

In this paper, we introduce Max Markov Chain (MMC), a novel representation for a useful subset of High-order Markov Chains (HMCs) with sparse correlations among the states. MMC is parsimony while retaining the expressiveness of HMCs. Even…

人工智能 · 计算机科学 2022-11-04 Yu Zhang , Mitchell Bucklew

In this work we present a new framework for neural networks compression with fine-tuning, which we called Neural Network Compression Framework (NNCF). It leverages recent advances of various network compression methods and implements some…

计算机视觉与模式识别 · 计算机科学 2021-01-01 Alexander Kozlov , Ivan Lazarevich , Vasily Shamporov , Nikolay Lyalyushkin , Yury Gorbachev

The primary challenge for handwriting recognition systems lies in managing long-range contextual dependencies, an issue that traditional models often struggle with. To mitigate it, attention mechanisms have recently been employed to enhance…

计算机视觉与模式识别 · 计算机科学 2024-09-10 Sara Ferro , Alessandro Torcinovich , Arianna Traviglia , Marcello Pelillo

Breaking down a document or a conversation into multiple contiguous segments based on its semantic structure is an important and challenging problem in NLP, which can assist many downstream tasks. However, current works on topic…

The latest developments in Natural Language Processing (NLP) have demonstrated remarkable progress in a code-text retrieval problem. As the Transformer-based models used in this task continue to increase in size, the computational costs and…

机器学习 · 计算机科学 2024-05-08 Karim Galliamov , Leila Khaertdinova , Karina Denisova

We present a novel cost function for semi-supervised learning of neural networks that encourages compact clustering of the latent space to facilitate separation. The key idea is to dynamically create a graph over embeddings of labeled and…

Multi-Task Learning (MTL) networks have emerged as a promising method for transferring learned knowledge across different tasks. However, MTL must deal with challenges such as: overfitting to low resource tasks, catastrophic forgetting, and…

机器学习 · 计算机科学 2022-04-22 Jonathan Pilault , Amine Elhattami , Christopher Pal

A novel framework named Markov Clustering Network (MCN) is proposed for fast and robust scene text detection. MCN predicts instance-level bounding boxes by firstly converting an image into a Stochastic Flow Graph (SFG) and then performing…

计算机视觉与模式识别 · 计算机科学 2018-05-23 Zichuan Liu , Guosheng Lin , Sheng Yang , Jiashi Feng , Weisi Lin , Wang Ling Goh

Rule mining in knowledge graphs enables interpretable link prediction. However, deep learning-based rule mining methods face significant memory and time challenges for large-scale knowledge graphs, whereas traditional approaches, limited by…

人工智能 · 计算机科学 2025-05-20 Mingyang Li , Song Wang , Ning Cai

Neural networks are among the state-of-the-art techniques for language modeling. Existing neural language models typically map discrete words to distributed, dense vector representations. After information processing of the preceding…

计算与语言 · 计算机科学 2016-10-14 Yunchuan Chen , Lili Mou , Yan Xu , Ge Li , Zhi Jin