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Showing 54 results for "cristobal rivas" in Engineering
Engineering Preprint PDF DOI

HoloBrain-0 Technical Report

Xuewu Lin, Tianwei Lin, Yun Du, Hongyu Xie, Yiwei Jin, Jiawei Li, Shijie Wu, Qingze Wang, Mengdi Li, Mengao Zhao, Ziang Li, Chaodong Huang, Hongzhe Bi, Lichao Huang, Zhizhong Su · 2026

In this work, we introduce HoloBrain-0, a comprehensive Vision-Language-Action (VLA) framework that bridges the gap between foundation model research and reliable real-world robot deployment. The core…

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Engineering Preprint PDF DOI

Necessity of Cooperative Transmissions for Wireless MapReduce

Yue Bi, Michele Wigger · 2026

The paper presents an improved upper bound (achievability result) on the optimal tradeoff between Normalized Delivery Time (NDT) and computation load for distributed computing MapReduce systems in cer…

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Engineering Preprint PDF DOI

CSI-MAE: A Masked Autoencoder-based Channel Foundation Model

Jun Jiang, Xiaolong Ruan, Shugong Xu · 2026

Self-Supervised Learning (SSL) has emerged as a key technique in machine learning, tackling challenges such as limited labeled data, high annotation costs, and variable wireless channel conditions. It…

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Engineering Preprint PDF DOI

Well-Designed k-Space Coverage is Important for Good MRI Denoising

Jiayang Wang, Justin P. Haldar · 2025

Object: Modern computational MRI denoising approaches are often designed assuming fixed k-space coverage. This contrasts with earlier acquisition-design literature that leveraged k-space coverage modi…

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Engineering Preprint PDF DOI

Generative Latent Video Compression

Zongyu Guo, Zhaoyang Jia, Jiahao Li, Xiaoyi Zhang, Bin Li, Yan Lu · 2025

Perceptual optimization is widely recognized as essential for neural compression, yet balancing the rate-distortion-perception tradeoff remains challenging. This difficulty is especially pronounced in…

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Engineering Preprint PDF DOI

Robotic 3D Flower Pose Estimation for Small-Scale Urban Farms

Harsh Muriki, Hong Ray Teo, Ved Sengupta, Ai-Ping Hu · 2025

The small scale of urban farms and the commercial availability of low-cost robots (such as the FarmBot) that automate simple tending tasks enable an accessible platform for plant phenotyping. We have …

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Engineering Preprint PDF DOI

Acrobotics: A Generalist Approach to Quadrupedal Robots' Parkour

Guillaume Gagne-Labelle, Vassil Atanassov, Ioannis Havoutis · 2025

Climbing, crouching, bridging gaps, and walking up stairs are just a few of the advantages that quadruped robots have over wheeled robots, making them more suitable for navigating rough and unstructur…

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Engineering Preprint PDF DOI

Parametric Object Coding in IVAS: Efficient Coding of Multiple Audio Objects at Low Bit Rates

Andrea Eichenseer, Srikanth Korse, Guillaume Fuchs, Markus Multrus · 2025

The recently standardized 3GPP codec for Immersive Voice and Audio Services (IVAS) includes a parametric mode for efficiently coding multiple audio objects at low bit rates. In this mode, parametric s…

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Engineering Preprint PDF DOI

Ark: An Open-source Python-based Framework for Robot Learning

Magnus Dierking, Christopher E. Mower, Sarthak Das, Huang Helong, Jiacheng Qiu, Cody Reading, Wei Chen, Huidong Liang, Huang Guowei, Jan Peters, Quan Xingyue, Jun Wang, Haitham Bou-Ammar · 2025

Robotics has made remarkable hardware strides-from DARPA's Urban and Robotics Challenges to the first humanoid-robot kickboxing tournament-yet commercial autonomy still lags behind progress in machine…

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Engineering Preprint PDF DOI

Can Generalist Vision Language Models (VLMs) Rival Specialist Medical VLMs? Benchmarking and Strategic Insights

Yuan Zhong, Ruinan Jin, Qi Dou, Xiaoxiao Li · 2025

Vision Language Models (VLMs) have shown promise in automating image diagnosis and interpretation in clinical settings. However, developing specialist medical VLMs requires substantial computational r…

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Engineering Preprint PDF DOI

Implicit Neural Representation-Based MRI Reconstruction Method with Sensitivity Map Constraints

Lixuan Rao, Xinlin Zhang, Yiman Huang, Tao Tan, Tong Tong · 2025

Magnetic Resonance Imaging (MRI) is a widely utilized diagnostic tool in clinical settings, but its application is limited by the relatively long acquisition time. As a result, fast MRI reconstruction…

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Engineering Preprint PDF DOI

Damping LFOs: Grid Following with Power Oscillation Damping vs. Grid Forming vs. PSS

Tamojit Chakraborty, Anamitra Pal, Sam Maleki · 2025

Low-frequency oscillations (LFOs) present a significant challenge to the stability and reliability of power systems, especially in grids with a high penetration of renewable energy sources. Traditiona…

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Engineering Preprint PDF DOI

TraceVLA: Visual Trace Prompting Enhances Spatial-Temporal Awareness for Generalist Robotic Policies

Ruijie Zheng, Yongyuan Liang, Shuaiyi Huang, Jianfeng Gao, Hal Daume III, Andrey Kolobov, Furong Huang, Jianwei Yang · 2024

Although large vision-language-action (VLA) models pretrained on extensive robot datasets offer promising generalist policies for robotic learning, they still struggle with spatial-temporal dynamics i…

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Engineering Preprint PDF DOI

From Simulation to Practice: Generalizable Deep Reinforcement Learning for Cellular Schedulers

Petteri Kela, Bryan Liu, Alvaro Valcarce · 2024

Efficient radio packet scheduling remains one of the most challenging tasks in cellular networks, and while heuristic methods exist, practical deep learning-based schedulers that are 3GPP-compliant an…

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Engineering Preprint PDF DOI

HeartBERT: A Self-Supervised ECG Embedding Model for Efficient and Effective Medical Signal Analysis

Saedeh Tahery, Fatemeh Hamid Akhlaghi, Termeh Amirsoleimani · 2024

The HeartBert model is introduced with three primary objectives: reducing the need for labeled data, minimizing computational resources, and simultaneously improving performance in machine learning sy…

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Engineering Preprint PDF DOI

KaLDeX: Kalman Filter based Linear Deformable Cross Attention for Retina Vessel Segmentation

Zhihao Zhao, Yinzheng Zhao, Junjie Yang, Quanmin Liang, Daniel Zapp, Kai Huang, M.Ali Nasseri · 2024

Background and Objective: In the realm of ophthalmic imaging, accurate vascular segmentation is paramount for diagnosing and managing various eye diseases. Contemporary deep learning-based vascular se…

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Engineering Preprint PDF DOI

Fast Extrinsic Calibration for Multiple Inertial Measurement Units in Visual-Inertial System

Youwei Yu, Yanqing Liu, Fengjie Fu, Sihan He, Dongchen Zhu, Lei Wang, Xiaolin Zhang, Jiamao Li · 2024

In this paper, we propose a fast extrinsic calibration method for fusing multiple inertial measurement units (MIMU) to improve visual-inertial odometry (VIO) localization accuracy. Currently, data fus…

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Engineering Preprint PDF DOI

Integrated Decision Making and Trajectory Planning for Autonomous Driving Under Multimodal Uncertainties: A Bayesian Game Approach

Zhenmin Huang, Tong Li, Shaojie Shen, Jun Ma · 2024

Modeling the interaction between traffic agents is a key issue in designing safe and non-conservative maneuvers in autonomous driving. This problem can be challenging when multi-modality and behaviora…

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Engineering Preprint PDF DOI

Speaker-IPL: Unsupervised Learning of Speaker Characteristics with i-Vector based Pseudo-Labels

Zakaria Aldeneh, Takuya Higuchi, Jee-weon Jung, Li-Wei Chen, Stephen Shum, Ahmed Hussen Abdelaziz, Shinji Watanabe, Tatiana Likhomanenko, Barry-John Theobald · 2024

Iterative self-training, or iterative pseudo-labeling (IPL) -- using an improved model from the current iteration to provide pseudo-labels for the next iteration -- has proven to be a powerful approac…

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Engineering Preprint PDF DOI

Grasping Force Control and Adaptation for a Cable-Driven Robotic Hand

Eric Mountain, Ean Weise, Sibo Tian, Beiwen Li, Xiao Liang, Minghui Zheng · 2024

This paper introduces a unique force control and adaptation algorithm for a lightweight and low-complexity five-fingered robotic hand, namely an Integrated-Finger Robotic Hand (IFRH). The force contro…

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