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Recently the use of mobile technologies in Ecological Momentary Assessments (EMA) and Interventions (EMI) has made it easier to collect data suitable for intra-individual variability studies in the medical field. Nevertheless, especially…

It is well known that the quality and quantity of training data are significant factors which affect the development and performance of machine intelligence algorithms. Without representative data, neither scientists nor algorithms would be…

机器学习 · 计算机科学 2019-01-08 Georgios Mastorakis

The randomized-feature approach has been successfully employed in large-scale kernel approximation and supervised learning. The distribution from which the random features are drawn impacts the number of features required to efficiently…

机器学习 · 统计学 2017-12-20 Shahin Shahrampour , Ahmad Beirami , Vahid Tarokh

The aim of this study was to predict university students' learning performance using different sources of data from an Intelligent Tutoring System. We collected and preprocessed data from 40 students from different multimodal sources:…

计算机与社会 · 计算机科学 2024-03-13 W. Chango , R. Cerezo , M. Sanchez-Santillan , R. Azevedo , C. Romero

The tracking method based on the extreme learning machine (ELM) is efficient and effective. ELM randomly generates input weights and biases in the hidden layer, and then calculates and computes the output weights by reducing the iterative…

机器学习 · 计算机科学 2018-07-27 Jing Zhang , Huibing Wang , Yonggong Ren

A critical factor in adopting machine learning for time-sensitive financial tasks is computational speed, including model training and inference. This paper demonstrates that a broad class of such problems, especially those previously…

计算金融 · 定量金融 2025-05-27 Liexin Cheng , Xue Cheng , Shuaiqiang Liu

Data cleaning is the initial stage of any machine learning project and is one of the most critical processes in data analysis. It is a critical step in ensuring that the dataset is devoid of incorrect or erroneous data. It can be done…

数据库 · 计算机科学 2021-09-16 Ga Young Lee , Lubna Alzamil , Bakhtiyar Doskenov , Arash Termehchy

In recent years, researchers pay growing attention to the few-shot learning (FSL) task to address the data-scarce problem. A standard FSL framework is composed of two components: i) Pre-train. Employ the base data to generate a CNN-based…

计算机视觉与模式识别 · 计算机科学 2021-12-06 Shuai Shao , Lei Xing , Rui Xu , Weifeng Liu , Yan-Jiang Wang , Bao-Di Liu

Datasets nowadays are generally constructed from multiple sources and using different synthetic techniques, making data de-noising and de-duplication crucial before being used for post-training. In this work, we propose to perform…

计算与语言 · 计算机科学 2024-12-24 Qi Jia , Siyu Ren , Ziheng Qin , Fuzhao Xue , Jinjie Ni , Yang You

Humans innately measure distance between instances in an unlabeled dataset using an unknown similarity function. Distance metrics can only serve as proxy for similarity in information retrieval of similar instances. Learning a good…

In general, sufficient data is essential for the better performance and generalization of deep-learning models. However, lots of limitations(cost, resources, etc.) of data collection leads to lack of enough data in most of the areas. In…

计算机视觉与模式识别 · 计算机科学 2020-07-16 Byeongjo Kim , Chanran Kim , Jaehoon Lee , Jein Song , Gyoungsoo Park

Deep learning has revolutionized many industries by enabling models to automatically learn complex patterns from raw data, reducing dependence on manual feature engineering. However, deep learning algorithms are sensitive to input data, and…

机器学习 · 计算机科学 2025-07-21 Mert Sehri , Zehui Hua , Francisco de Assis Boldt , Patrick Dumond

Open Educational Resources (OERs) are openly licensed educational materials that are widely used for learning. Nowadays, many online learning repositories provide millions of OERs. Therefore, it is exceedingly difficult for learners to find…

计算机与社会 · 计算机科学 2021-01-20 Mohammadreza Tavakoli , Mirette Elias , Gábor Kismihók , Sören Auer

As Large Language Models (LLMs) are pre-trained on ultra-large-scale corpora, the problem of data contamination is becoming increasingly serious, and there is a risk that static evaluation benchmarks overestimate the performance of LLMs. To…

计算与语言 · 计算机科学 2025-08-13 Yang Fan

In the past decades, the rapid growth of computer and database technologies has led to the rapid growth of large-scale datasets. On the other hand, data mining applications with high dimensional datasets that require high speed and accuracy…

机器学习 · 计算机科学 2020-08-11 Mehrdad Rostami , Kamal Berahmand , Saman Forouzandeh

In the recent decade, online learning environments have accumulated millions of Open Educational Resources (OERs). However, for learners, finding relevant and high quality OERs is a complicated and time-consuming activity. Furthermore,…

计算机与社会 · 计算机科学 2020-06-01 Mohammadreza Tavakoli , Mirette Elias , Gábor Kismihók , Sören Auer

Discovering the intended items of user queries from a massive repository of items is one of the main goals of an e-commerce search system. Relevance prediction is essential to the search system since it helps improve performance. When…

Learning of interpretable classification models has been attracting much attention for the last few years. Discovery of succinct and contrasting patterns that can highlight the differences between the two classes is very important. Such…

数据库 · 计算机科学 2020-04-20 Hiroaki Iwashita , Takuya Takagi , Hirofumi Suzuki , Keisuke Goto , Kotaro Ohori , Hiroki Arimura

Extreme Learning Machines (ELMs) have become a popular tool in the field of Artificial Intelligence due to their very high training speed and generalization capabilities. Another advantage is that they have a single hyper-parameter that…

机器学习 · 计算机科学 2019-12-05 Nicolás Nieto , Francisco Ibarrola , Victoria Peterson , Hugo Rufiner , Ruben Spies

Instruction tuning is critical to large language models (LLMs) for achieving better instruction following and task adaptation capabilities but its success heavily relies on the training data quality. Many recent methods focus on improving…

计算与语言 · 计算机科学 2024-06-11 Ming Li , Lichang Chen , Jiuhai Chen , Shwai He , Jiuxiang Gu , Tianyi Zhou