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We propose a new encoder-decoder approach to learn distributed sentence representations that are applicable to multiple purposes. The model is learned by using a convolutional neural network as an encoder to map an input sentence into a…

计算与语言 · 计算机科学 2017-07-28 Zhe Gan , Yunchen Pu , Ricardo Henao , Chunyuan Li , Xiaodong He , Lawrence Carin

The quadratic complexity of self-attention in Transformer models remains a significant bottleneck for processing long sequences and deploying large language models efficiently. For this approach, there has been significant research into…

计算与语言 · 计算机科学 2026-05-26 Spandan Pratyush

Neural Posterior Estimation methods for simulation-based inference can be ill-suited for dealing with posterior distributions obtained by conditioning on multiple observations, as they tend to require a large number of simulator calls to…

机器学习 · 计算机科学 2023-07-11 Tomas Geffner , George Papamakarios , Andriy Mnih

Representing token embeddings as probability distributions over learned manifolds allows for more flexible contextual inference, reducing representational rigidity while enhancing semantic granularity. Comparative evaluations demonstrate…

Deep learning dominates image classification tasks, yet understanding how models arrive at predictions remains a challenge. Much research focuses on local explanations of individual predictions, such as saliency maps, which visualise the…

计算机视觉与模式识别 · 计算机科学 2025-07-01 James Hinns , David Martens

Approximate inference in probability models is a fundamental task in machine learning. Approximate inference provides powerful tools to Bayesian reasoning, decision making, and Bayesian deep learning. The main goal is to estimate the…

机器学习 · 计算机科学 2020-03-10 Jun Han

Capsule networks (see e.g. Hinton et al., 2018) aim to encode knowledge and reason about the relationship between an object and its parts. In this paper we specify a \emph{generative} model for such data, and derive a variational algorithm…

机器学习 · 计算机科学 2022-03-16 Alfredo Nazabal , Nikolaos Tsagkas , Christopher K. I. Williams

We present two analytical formulae for estimating the sensitivity -- namely, the gradient or Jacobian -- at given realizations of an arbitrary-dimensional random vector with respect to its distributional parameters. The first formula…

机器学习 · 统计学 2025-08-14 Pi-Yueh Chuang , Ahmed Attia , Emil Constantinescu

Data encoded as symmetric positive definite (SPD) matrices frequently arise in many areas of computer vision and machine learning. While these matrices form an open subset of the Euclidean space of symmetric matrices, viewing them through…

计算机视觉与模式识别 · 计算机科学 2015-12-18 Anoop Cherian , Suvrit Sra

Traditional saliency map methods, popularized in computer vision, highlight individual points (pixels) of the input that contribute the most to the model's output. However, in time series, they offer limited insights, as semantically…

机器学习 · 计算机科学 2026-05-08 Christodoulos Kechris , Jonathan Dan , David Atienza

Stochastic reduced models are an important tool in climate systems whose many spatial and temporal scales cannot be fully discretized or underlying physics may not be fully accounted for. One form of reduced model, the linear inverse model…

统计方法学 · 统计学 2020-04-29 Dallas Foster , Darin Comeau , Nathan M. Urban

Reasoning about implied relationships (e.g., paraphrastic, common sense, encyclopedic) between pairs of words is crucial for many cross-sentence inference problems. This paper proposes new methods for learning and using embeddings of word…

计算与语言 · 计算机科学 2019-04-09 Mandar Joshi , Eunsol Choi , Omer Levy , Daniel S. Weld , Luke Zettlemoyer

In this paper, we present a full-reference speech quality prediction model with a deep learning approach. The model determines a feature representation of the reference and the degraded signal through a siamese recurrent convolutional…

音频与语音处理 · 电气工程与系统科学 2021-05-04 Gabriel Mittags , Sebastian Möller

Attribution methods correspond to a class of explainability methods (XAI) that aim to assess how individual inputs contribute to a model's decision-making process. We have identified a significant limitation in one type of attribution…

人工智能 · 计算机科学 2024-06-11 Sabine Muzellec , Thomas Fel , Victor Boutin , Léo andéol , Rufin VanRullen , Thomas Serre

We hereby present a solution to a semantic textual similarity (STS) problem in which it is necessary to match two sentences containing, as the only distinguishing factor, highly specific information (such as names, addresses, identification…

计算与语言 · 计算机科学 2023-11-29 Gioele Cadamuro , Marco Gruppo

Transferring reasoning capabilities from larger language models to smaller ones through supervised fine-tuning often fails counterintuitively, with performance degrading despite access to high-quality teacher demonstrations. We identify…

计算与语言 · 计算机科学 2025-09-29 Jaehoon Kim , Kwangwook Seo , Dongha Lee

Feature attribution methods, such as SHAP and LIME, explain machine learning model predictions by quantifying the influence of each input component. When applying feature attributions to explain language models, a basic question is defining…

人机交互 · 计算机科学 2025-09-26 Alan Boyle , Furui Cheng , Vilém Zouhar , Mennatallah El-Assady

Semantic Textual Similarity (STS) is the basis of many applications in Natural Language Processing (NLP). Our system combines convolution and recurrent neural networks to measure the semantic similarity of sentences. It uses a convolution…

计算与语言 · 计算机科学 2018-10-26 Elvys Linhares Pontes , Stéphane Huet , Andréa Carneiro Linhares , Juan-Manuel Torres-Moreno

Sparse autoencoders (SAEs) decompose neural activations into interpretable features. A widely adopted variant, the TopK SAE, reconstructs each token from its K most active latents. However, this approach is inefficient, as some tokens carry…

机器学习 · 计算机科学 2025-09-01 Narmeen Oozeer , Nirmalendu Prakash , Michael Lan , Alice Rigg , Amirali Abdullah

Sparse autoencoders (SAEs) have recently emerged as a powerful tool for language model steering. Prior work has explored top-k SAE latents for steering, but we observe that many dimensions among the top-k latents capture non-semantic…

计算与语言 · 计算机科学 2025-10-03 Jiaqing Xie