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Designing neural networks typically relies on manual trial and error or a neural architecture search (NAS) followed by weight training. The former is time-consuming and labor-intensive, while the latter often discretizes architecture search…

Machine Learning · Computer Science 2025-11-19 Zitong Huang , Mansooreh Montazerin , Ajitesh Srivastava

Spiking neural networks (SNNs) offer a promising pathway to implement deep neural networks (DNNs) in a more energy-efficient manner since their neurons are sparsely activated and inferences are event-driven. However, there have been very…

Neural and Evolutionary Computing · Computer Science 2024-06-28 Changze Lv , Jianhan Xu , Xiaoqing Zheng

Semi-Supervised Variational Autoencoders (SSVAEs) are widely used models for data efficient learning. In this paper, we question the adequacy of the standard design of sequence SSVAEs for the task of text classification as we exhibit two…

Computation and Language · Computer Science 2021-09-28 Ghazi Felhi , Joseph Le Roux , Djamé Seddah

Sparse Autoencoders (SAEs) have been successfully used to probe Large Language Models (LLMs) and extract interpretable concepts from their internal representations. These concepts are linear combinations of neuron activations that…

Computation and Language · Computer Science 2026-02-23 Mathis Le Bail , Jérémie Dentan , Davide Buscaldi , Sonia Vanier

Recent years have witnessed a surge of interests of using neural topic models for automatic topic extraction from text, since they avoid the complicated mathematical derivations for model inference as in traditional topic models such as…

Computation and Language · Computer Science 2020-04-28 Rui Wang , Xuemeng Hu , Deyu Zhou , Yulan He , Yuxuan Xiong , Chenchen Ye , Haiyang Xu

Neural Audio Codecs (NACs) are widely adopted in modern speech systems, yet how they encode linguistic and paralinguistic information remains unclear. Improving the interpretability of NAC representations is critical for understanding and…

With the expansion of AI-powered virtual assistants, there is a need for low-power keyword spotting systems providing a "wake-up" mechanism for subsequent computationally expensive speech recognition. One promising approach is the use of…

Neural and Evolutionary Computing · Computer Science 2024-10-28 Mattias Nilsson , Ton Juny Pina , Lyes Khacef , Foteini Liwicki , Elisabetta Chicca , Fredrik Sandin

Even though BERT achieves successful performance improvements in various supervised learning tasks, applying BERT for unsupervised tasks still holds a limitation that it requires repetitive inference for computing contextual language…

Computation and Language · Computer Science 2020-04-20 Joongbo Shin , Yoonhyung Lee , Seunghyun Yoon , Kyomin Jung

Deep learning models exhibit a preference for statistical fitting over logical reasoning. Spurious correlations might be memorized when there exists statistical bias in training data, which severely limits the model performance especially…

Machine Learning · Computer Science 2021-09-13 Wei Wang , Boxin Wang , Ning Shi , Jinfeng Li , Bingyu Zhu , Xiangyu Liu , Rong Zhang

In this paper, we propose a method for incremental learning of two distinct tasks over time: acoustic scene classification (ASC) and audio tagging (AT). We use a simple convolutional neural network (CNN) model as an incremental learner to…

Audio and Speech Processing · Electrical Eng. & Systems 2023-08-25 Manjunath Mulimani , Annamaria Mesaros

Sparse Autoencoders (SAEs) have become an important tool in mechanistic interpretability, helping to analyze internal representations in both Large Language Models (LLMs) and Vision Transformers (ViTs). By decomposing polysemantic…

Machine Learning · Computer Science 2026-05-11 Jakub Stępień , Marcin Mazur , Jacek Tabor , Przemysław Spurek

We propose a novel method that leverages sparse autoencoders (SAEs) and clustering techniques to analyze the internal token representations of large language models (LLMs) and guide generations in mathematical reasoning tasks. Our approach…

Artificial Intelligence · Computer Science 2025-10-03 Daniel Zhao , Abhilash Shankarampeta , Lanxiang Hu , Tajana Rosing , Hao Zhang

In this paper, we propose a winner-take-all method for learning hierarchical sparse representations in an unsupervised fashion. We first introduce fully-connected winner-take-all autoencoders which use mini-batch statistics to directly…

Machine Learning · Computer Science 2015-06-09 Alireza Makhzani , Brendan Frey

Text classification in education, usually called auto-tagging, is the automated process of assigning relevant tags to educational content, such as questions and textbooks. However, auto-tagging suffers from a data scarcity problem, which…

Computation and Language · Computer Science 2023-06-01 Hyun Seung Lee , Seungtaek Choi , Yunsung Lee , Hyeongdon Moon , Shinhyeok Oh , Myeongho Jeong , Hyojun Go , Christian Wallraven

Active learning is an iterative labeling process that is used to obtain a small labeled subset, despite the absence of labeled data, thereby enabling to train a model for supervised tasks such as text classification. While active learning…

Computation and Language · Computer Science 2024-10-07 Christopher Schröder , Gerhard Heyer

Sparse Autoencoders have emerged as powerful tools for interpreting the internal representations of Large Language Models, yet they often fail to capture domain-specific features not prevalent in their training corpora. This paper…

Machine Learning · Computer Science 2025-07-18 Nikita Koriagin , Yaroslav Aksenov , Daniil Laptev , Gleb Gerasimov , Nikita Balagansky , Daniil Gavrilov

The autoencoder is an artificial neural network model that learns hidden representations of unlabeled data. With a linear transfer function it is similar to the principal component analysis (PCA). While both methods use weight vectors for…

Computer Vision and Pattern Recognition · Computer Science 2019-02-04 Ya Ju Fan

We argue that training autoencoders to reconstruct inputs from noised versions of their encodings, when combined with perceptual losses, yields encodings that are structured according to a perceptual hierarchy. We demonstrate the emergence…

Sound · Computer Science 2025-11-11 Mathias Rose Bjare , Giorgia Cantisani , Marco Pasini , Stefan Lattner , Gerhard Widmer

We propose a method for image categorization and retrieval that leverages graphs and a graph attention network (GAT)-based autoencoder. Our approach is representative-centric, that is, we execute the categorization and retrieval process via…

Computer Vision and Pattern Recognition · Computer Science 2025-10-21 Duygu Sap , Martin Lotz , Connor Mattinson

Autonomous robotic systems and self driving cars rely on accurate perception of their surroundings as the safety of the passengers and pedestrians is the top priority. Semantic segmentation is one the essential components of environmental…

Computer Vision and Pattern Recognition · Computer Science 2021-02-10 Ran Cheng , Ryan Razani , Ehsan Taghavi , Enxu Li , Bingbing Liu