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This study focuses on the problem of credit default prediction, builds a modeling framework based on machine learning, and conducts comparative experiments on a variety of mainstream classification algorithms. Through preprocessing, feature…

机器学习 · 计算机科学 2026-02-24 Shiqi Yang , Ziyi Huang , Wengran Xiao , Xinyu Shen

Unimodality constitutes a key property indicating grouping behavior of the data around a single mode of its density. We propose a method that partitions univariate data into unimodal subsets through recursive splitting around valley points…

机器学习 · 计算机科学 2024-12-23 Paraskevi Chasani , Aristidis Likas

Accurately forecasting ridesourcing demand is important for effective transportation planning and policy-making. With the rise of Artificial Intelligence (AI), researchers have started to utilize machine learning models to forecast travel…

机器学习 · 计算机科学 2021-09-09 Xiaojian Zhang , Xilei Zhao

The contribution of this work is twofold: (1) We introduce a collection of ensemble methods for time series forecasting to combine predictions from base models. We demonstrate insights on the power of ensemble learning for forecasting,…

机器学习 · 计算机科学 2021-04-26 Julia Gastinger , Sébastien Nicolas , Dušica Stepić , Mischa Schmidt , Anett Schülke

Ensemble learning has been widely employed by mobile applications, ranging from environmental sensing to activity recognitions. One of the fundamental issue in ensemble learning is the trade-off between classification accuracy and…

分布式、并行与集群计算 · 计算机科学 2017-01-26 Shaowei Wang , Liusheng Huang , Pengzhan Wang , Hongli Xu , Wei Yang

This work develops formal statistical inference procedures for machine learning ensemble methods. Ensemble methods based on bootstrapping, such as bagging and random forests, have improved the predictive accuracy of individual trees, but…

机器学习 · 统计学 2015-09-11 Lucas Mentch , Giles Hooker

While machine learning has emerged in recent years as a useful tool for rapid prediction of materials properties, generating sufficient data to reliably train models without overfitting is still impractical for many applications. Towards…

材料科学 · 物理学 2022-07-29 Rees Chang , Yu-Xiong Wang , Elif Ertekin

Transportation modes prediction is a fundamental task for decision making in smart cities and traffic management systems. Traffic policies designed based on trajectory mining can save money and time for authorities and the public. It may…

人工智能 · 计算机科学 2018-09-07 Mohammad Etemad , Amilcar Soares Junior , Stan Matwin

This study proposes a Deep Belief Network model to classify traffic flow states. The model is capable of processing massive, high-density, and noise-contaminated data sets generated from smartphone sensors. The statistical features of…

机器学习 · 计算机科学 2017-09-27 Wenwen Tu , Feng Xiao , Liping Fu , Guangyuan Pan

We introduce Statistical Flow Matching (SFM), a novel and mathematically rigorous flow-matching framework on the manifold of parameterized probability measures inspired by the results from information geometry. We demonstrate the…

机器学习 · 计算机科学 2025-11-26 Chaoran Cheng , Jiahan Li , Jian Peng , Ge Liu

Classifier-Free Guidance (CFG) is widely used to improve conditional fidelity in diffusion models, but its impact on sampling dynamics remains poorly understood. Prior studies, often restricted to unimodal conditional distributions or…

机器学习 · 计算机科学 2026-02-19 Cheng Jin , Qitan Shi , Yuantao Gu

We propose CFS, a distributed file system for large scale container platforms. CFS supports both sequential and random file accesses with optimized storage for both large files and small files, and adopts different replication protocols for…

分布式、并行与集群计算 · 计算机科学 2019-11-11 Haifeng Liu , Wei Ding , Yuan Chen , Weilong Guo , Shuoran Liu , Tianpeng Li , Mofei Zhang , Jianxing Zhao , Hongyin Zhu , Zhengyi Zhu

In ride-hailing systems, drivers decide whether to accept or reject ride requests based on factors such as order characteristics, traffic conditions, and personal preferences. Accurately predicting these decisions is essential for improving…

机器学习 · 计算机科学 2025-06-24 Weiming Mai , Jie Gao , Oded Cats

Due to increasing concerns about environmental impact, operating costs, and energy security, public transit agencies are seeking to reduce their fuel use by employing electric vehicles (EVs). However, because of the high upfront cost of…

信号处理 · 电气工程与系统科学 2020-07-21 Afiya Ayman , Michael Wilbur , Amutheezan Sivagnanam , Philip Pugliese , Abhishek Dubey , Aron Laszka

Timestep sampling $p(t)$ is a central design choice in Flow Matching models, yet common practice increasingly favors static middle-biased distributions (e.g., Logit-Normal). We show that this choice induces a speed--quality trade-off:…

机器学习 · 计算机科学 2026-03-16 Pengwei Sun

Machine learning has emerged as a promising approach to path loss prediction, yet its effectiveness often degrades when measurement data are scarce. To address this limitation, we propose an ensemble-based machine learning framework that…

信号处理 · 电气工程与系统科学 2026-05-26 Ahmed P. Mohamed , Byunghyun Lee , Yaguang Zhang , Christopher R. Anderson , David J. Love , James V. Krogmeier

In smart cities, context-aware spatio-temporal crowd flow prediction (STCFP) models leverage contextual features (e.g., weather) to identify unusual crowd mobility patterns and enhance prediction accuracy. However, the best practice for…

人工智能 · 计算机科学 2025-01-08 Liyue Chen , Jiangyi Fang , Tengfei Liu , Fangyuan Gao , Leye Wang

Nowadays, metro systems play an important role in meeting the urban transportation demand in large cities. The understanding of passenger route choice is critical for public transit management. The wide deployment of Automated Fare…

人工智能 · 计算机科学 2016-05-27 Juanjuan Zhao , Fan Zhang , Lai Tu , Chengzhong Xu , Dayong Shen , Chen Tian , Xiang-Yang Li , Zhengxi Li

Accurately estimating aircraft fuel flow is essential for evaluating new procedures, designing next-generation aircraft, and monitoring the environmental impact of current aviation practices. This paper investigates the generalization…

机器学习 · 计算机科学 2025-07-25 Gabriel Jarry , Ramon Dalmau , Philippe Very , Junzi Sun

The decision making involved behind the mode choice is critical for transportation planning. While statistical learning techniques like discrete choice models have been used traditionally, machine learning (ML) models have gained traction…

机器学习 · 计算机科学 2024-01-26 Tanmay Ghosh , Nithin Nagaraj