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There is growing interest in leveraging mechanistic interpretability and controllability to better understand and influence the internal dynamics of large language models (LLMs). However, current methods face fundamental challenges in…

In contrast to fully-supervised models, self-supervised representation learning only needs a fraction of data to be labeled and often achieves the same or even higher downstream performance. The goal is to pre-train deep neural networks on…

机器学习 · 计算机科学 2025-04-09 Friederike Baier , Sebastian Mair , Samuel G. Fadel

Unplanned failures in industrial hydraulic pumps can halt production and incur substantial costs. We explore two unsupervised autoencoder (AE) schemes for early fault detection: a feed-forward model that analyses individual sensor snapshots…

机器学习 · 计算机科学 2026-01-19 P. Sánchez , K. Reyes , B. Radu , E. Fernández

Sparse autoencoders (SAEs) are widely used for interpreting language model activations. A key evaluation metric is the increase in cross-entropy loss between the original model logits and the reconstructed model logits when replacing model…

机器学习 · 计算机科学 2025-04-01 Adam Karvonen

In reinforcement learning, the state of the real world is often represented by feature vectors. However, not all of the features may be pertinent for solving the current task. We propose Feature Selection Explore and Exploit (FS-EE), an…

机器学习 · 计算机科学 2017-03-13 Zhaohan Daniel Guo , Emma Brunskill

Sparse autoencoders (SAEs) have emerged as powerful techniques for interpretability of large language models (LLMs), aiming to decompose hidden states into meaningful semantic features. While several SAE variants have been proposed, there…

机器学习 · 计算机科学 2025-10-03 Xudong Zhu , Mohammad Mahdi Khalili , Zhihui Zhu

Recent work has advocated for the use of deep learning to perform power allocation in the downlink of massive MIMO (maMIMO) networks. Yet, such deep learning models are vulnerable to adversarial attacks. In the context of maMIMO power…

信号处理 · 电气工程与系统科学 2023-03-21 Rajeev Sahay , Minjun Zhang , David J. Love , Christopher G. Brinton

Sparse autoencoders (SAEs) decompose large language model (LLM) activations into latent features that reveal mechanistic structure. Conventional SAEs train on broad data distributions, forcing a fixed latent budget to capture only…

机器学习 · 计算机科学 2025-08-14 Charles O'Neill , Mudith Jayasekara , Max Kirkby

We present a novel feature selection technique, Sparse Linear Centroid-Encoder (SLCE). The algorithm uses a linear transformation to reconstruct a point as its class centroid and, at the same time, uses the $\ell_1$-norm penalty to filter…

机器学习 · 计算机科学 2023-06-12 Tomojit Ghosh , Michael Kirby , Karim Karimov

Zero-Shot Learning is an important paradigm within General-Purpose Artificial Intelligence Systems, particularly in those that operate in open-world scenarios where systems must adapt to new tasks dynamically. Semantic spaces play a pivotal…

机器学习 · 计算机科学 2025-10-07 Juan Jose Herrera-Aranda , Guillermo Gomez-Trenado , Francisco Herrera , Isaac Triguero

Researchers have proposed various methods to extract 3D keypoints from the surface of 3D mesh models over the last decades, but most of them are based on geometric methods, which lack enough flexibility to meet the requirements for various…

计算机视觉与模式识别 · 计算机科学 2016-05-03 Xinyu Lin , Ce Zhu , Qian Zhang , Yipeng Liu

Self-taught learning is a technique that uses a large number of unlabeled data as source samples to improve the task performance on target samples. Compared with other transfer learning techniques, self-taught learning can be applied to a…

机器学习 · 计算机科学 2019-12-03 Siwei Feng , Han Yu , Marco F. Duarte

Forecasting stock market direction is always an amazing but challenging problem in finance. Although many popular shallow computational methods (such as Backpropagation Network and Support Vector Machine) have extensively been proposed,…

计算金融 · 定量金融 2019-12-03 Shaogao Lv , Yongchao Hou , Hongwei Zhou

Sparse autoencoders (SAEs) are widely used in mechanistic interpretability research for large language models; however, the state-of-the-art method of using $k$-sparse autoencoders lacks a theoretical grounding for selecting the…

机器学习 · 计算机科学 2025-08-11 Sewoong Lee , Adam Davies , Marc E. Canby , Julia Hockenmaier

Sparse autoencoders (SAEs) have emerged as a powerful technique for decomposing language model representations into interpretable features. Current interpretation methods infer feature semantics from activation patterns, but overlook that…

机器学习 · 计算机科学 2026-02-02 Yiting Liu , Zhi-Hong Deng

In this paper, we present an automated machine learning (AutoML) approach for network intrusion detection, leveraging a stacked ensemble model developed using the MLJAR AutoML framework. Our methodology combines multiple machine learning…

Training large language models (LLMs) from scratch requires significant computational resources, driving interest in developing smaller, domain-specific LLMs that maintain both efficiency and strong task performance. Medium-sized models…

计算与语言 · 计算机科学 2026-03-02 Chaitali Bhattacharyya , Hyunsei Lee , Junyoung Lee , Shinhyoung Jang , Il hong Suh , Yeseong Kim

This study investigates the effectiveness of several machine learning algorithms for static malware detection using the EMBER dataset, which contains feature representations of Portable Executable (PE) files. We evaluate eight…

密码学与安全 · 计算机科学 2025-07-28 Md Min-Ha-Zul Abedin , Tazqia Mehrub

Intermediate layers of large language models (LLMs) best predict human brain responses to language, one of the most robust findings in computational neurolinguistics, yet why remains mechanistically unexplained. We address this gap by…

计算与语言 · 计算机科学 2026-05-25 Dongxin Guo , Jikun Wu , Siu Ming Yiu

Feature selection is a dimensionality reduction technique that selects a subset of representative features from high dimensional data by eliminating irrelevant and redundant features. Recently, feature selection combined with sparse…

计算机视觉与模式识别 · 计算机科学 2018-04-24 Siwei Feng , Marco F. Duarte
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