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We apply topological data analysis (TDA) to speech classification problems and to the introspection of a pretrained speech model, HuBERT. To this end, we introduce a number of topological and algebraic features derived from Transformer…

This work proposes an automatic methodology for modeling complex systems. Our methodology is based on the combination of Grammatical Evolution and classical regression to obtain an optimal set of features that take part of a linear and…

分布式、并行与集群计算 · 计算机科学 2024-07-02 Patricia Arroba , José L. Risco-Martín , Marina Zapater , José M. Moya , José L. Ayala

Auto Feature Engineering (AFE) plays a crucial role in developing practical machine learning pipelines by automating the transformation of raw data into meaningful features that enhance model performance. By generating features in a…

Decision tree ensembles are widely used and competitive learning models. Despite their success, popular toolkits for learning tree ensembles have limited modeling capabilities. For instance, these toolkits support a limited number of loss…

机器学习 · 计算机科学 2022-05-20 Shibal Ibrahim , Hussein Hazimeh , Rahul Mazumder

Time-series prediction involves forecasting future values using machine learning models. Feature engineering, whereby existing features are transformed to make new ones, is critical for enhancing model performance, but is often manual and…

机器学习 · 计算机科学 2025-08-21 Andrew Murray , Danial Dervovic , Michael Cashmore

Learning algorithms produce software models for realising critical classification tasks. Decision trees models are simpler than other models such as neural network and they are used in various critical domains such as the medical and the…

机器学习 · 计算机科学 2020-10-27 Tianqi Xiao , Omer Nguena Timo , Florent Avellaneda , Yasir Malik , Stefan Bruda

Even though, many researchers tried to explore the various possibilities on multi objective feature selection, still it is yet to be explored with best of its capabilities in data mining applications rather than going for developing new…

神经与进化计算 · 计算机科学 2016-10-26 Mrutyunjaya Panda

Evaluating the mechanical response of fiber-reinforced composites can be extremely time consuming and expensive. Machine learning (ML) techniques offer a means for faster predictions via models trained on existing input-output pairs and…

材料科学 · 物理学 2024-10-03 Yixuan Sun , Imad Hanhan , Michael D. Sangid , Guang Lin

In this paper, Whisper, a large-scale pre-trained model for automatic speech recognition, is proposed to apply to speaker verification. A partial multi-scale feature aggregation (PMFA) approach is proposed based on a subset of Whisper…

声音 · 计算机科学 2024-08-29 Yiyang Zhao , Shuai Wang , Guangzhi Sun , Zehua Chen , Chao Zhang , Mingxing Xu , Thomas Fang Zheng

Feature selection reduces the dimensionality of data by identifying a subset of the most informative features. In this paper, we propose an innovative framework for unsupervised feature selection, called fractal autoencoders (FAE). It…

机器学习 · 计算机科学 2022-01-06 Xinxing Wu , Qiang Cheng

Random forest (RF) stands out as a highly favored machine learning approach for classification problems. The effectiveness of RF hinges on two key factors: the accuracy of individual trees and the diversity among them. In this study, we…

机器学习 · 计算机科学 2024-10-28 Ye-eun Kim , Seoung Yun Kim , Hyunjoong Kim

Stakeholders make various types of decisions with respect to requirements, design, management, and so on during the software development life cycle. Nevertheless, these decisions are typically not well documented and classified due to…

软件工程 · 计算机科学 2021-05-05 Liming Fu , Peng Liang , Xueying Li , Chen Yang

Classical models for supervised machine learning, such as decision trees, are efficient and interpretable predictors, but their quality is highly dependent on the particular choice of input features. Although neural networks can learn…

机器学习 · 计算机科学 2025-10-17 Gabriel Poesia , Georgia Gabriela Sampaio

Despite the widely reported success of embedding-based machine learning methods on natural language processing tasks, the use of more easily interpreted engineered features remains common in fields such as cognitive impairment (CI)…

机器学习 · 计算机科学 2020-10-14 Benjamin Eyre , Aparna Balagopalan , Jekaterina Novikova

Human agents routinely reason on instances with incomplete and muddied data (and weigh the cost of obtaining further features). In contrast, much of ML is devoted to the unrealistic, sterile environment where all features are observed and…

机器学习 · 计算机科学 2024-10-08 Yang Li , Junier Oliva

In the last years decision-focused learning framework, also known as predict-and-optimize, have received increasing attention. In this setting, the predictions of a machine learning model are used as estimated cost coefficients in the…

机器学习 · 计算机科学 2022-06-20 Jayanta Mandi , Víctor Bucarey , Maxime Mulamba , Tias Guns

Diffusion Models represent a significant advancement in generative modeling, employing a dual-phase process that first degrades domain-specific information via Gaussian noise and restores it through a trainable model. This framework enables…

神经与进化计算 · 计算机科学 2024-11-21 Benedikt Hartl , Yanbo Zhang , Hananel Hazan , Michael Levin

Hearing Aid (HA) algorithms need to be tuned ("fitted") to match the impairment of each specific patient. The lack of a fundamental HA fitting theory is a strong contributing factor to an unsatisfying sound experience for about 20% of…

机器学习 · 统计学 2016-09-07 Thijs van de Laar , Bert de Vries

Meta-learning, decision fusion, hybrid models, and representation learning are topics of investigation with significant traction in time-series forecasting research. Of these two specific areas have shown state-of-the-art results in…

机器学习 · 计算机科学 2023-03-21 Terence L. van Zyl

Due to the fast-growing volume of text documents and reviews in recent years, current analyzing techniques are not competent enough to meet the users' needs. Using feature selection techniques not only support to understand data better but…

信息检索 · 计算机科学 2020-04-29 Amir Javadpour , Samira Rezaei , Kuan-Ching Li , Guojun Wang