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๐Ÿ” david callan ๐Ÿ“‚ Engineering
Showing 64 results for "david callan" in Engineering
Engineering Preprint PDF DOI

Symmetry Is Almost All You Need: Robust Stability with Uncertainty Induced by Symmetric SRG Regions

Ding Zhang, Di Zhao, Philipp Braun, Jianqi Chen ยท 2026

This paper investigates the robust stability problem of a feedback system in the presence of uncertainties induced by graphical regions in the plane where the scaled relative graphs (SRGs) reside. Ourโ€ฆ

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Engineering Preprint PDF DOI

Optimal GNSS Time Tracking for Long-term Stable Time Realisation in Synchronised Atomic Clocks

Maitreyee Dutta, Jiayu Chen, Masakazu Koike, Yuichiro Yano, Yuko Hanado, Takayuki Ishizaki ยท 2026

In this manuscript, we propose a novel optimal Global Navigation Satellite System (GNSS) time tracking algorithm to collectively steer an ensemble consisting of synchronising miniature atomic clocks tโ€ฆ

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Engineering Preprint PDF DOI

NavTrust: Benchmarking Trustworthiness for Embodied Navigation

Huaide Jiang, Yash Chaudhary, Yuping Wang, Zehao Wang, Raghav Sharma, Manan Mehta, Yang Zhou, Lichao Sun, Zhiwen Fan, Zhengzhong Tu, Jiachen Li ยท 2026

There are two major categories of embodied navigation: Vision-Language Navigation (VLN), where agents navigate by following natural language instructions; and Object-Goal Navigation (OGN), where agentโ€ฆ

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Engineering Preprint PDF DOI

CarPLAN: Context-Adaptive and Robust Planning with Dynamic Scene Awareness for Autonomous Driving

Junyong Yun, Jungho Kim, ByungHyun Lee, Dongyoung Lee, Sehwan Choi, Seunghyeop Nam, Kichun Jo, Jun Won Choi ยท 2026

Imitation learning (IL) is widely used for motion planning in autonomous driving due to its data efficiency and access to real-world driving data. For safe and robust real-world driving, IL-based planโ€ฆ

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Engineering Preprint PDF DOI

Unified Learning of Temporal Task Structure and Action Timing for Bimanual Robot Manipulation

Christian Dreher, Patrick Dormanns, Andre Meixner, Tamim Asfour ยท 2026

Temporal task structure is fundamental for bimanual manipulation: a robot must not only know that one action precedes or overlaps another, but also when each action should occur and how long it shouldโ€ฆ

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Engineering Preprint PDF DOI

U-DAVI: Uncertainty-Aware Diffusion-Prior-Based Amortized Variational Inference for Image Reconstruction

Ayush Varshney, Katherine L. Bouman, Berthy T. Feng ยท 2026

Ill-posed imaging inverse problems remain challenging due to the ambiguity in mapping degraded observations to clean images. Diffusion-based generative priors have recently shown promise, but typicallโ€ฆ

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Engineering Preprint PDF DOI

A Modern System Recipe for Situated Embodied Human-Robot Conversation with Real-Time Multimodal LLMs and Tool-Calling

Dong Won Lee, Sarah Gillet, Louis-Philippe Morency, Cynthia Breazeal, Hae Won Park ยท 2026

Situated embodied conversation requires robots to interleave real-time dialogue with active perception: deciding what to look at, when to look, and what to say under tight latency constraints. We presโ€ฆ

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Engineering Preprint PDF DOI

Sounding Highlights: Dual-Pathway Audio Encoders for Audio-Visual Video Highlight Detection

Seohyun Joo, Yoori Oh ยท 2026

Audio-visual video highlight detection aims to automatically identify the most salient moments in videos by leveraging both visual and auditory cues. However, existing models often underutilize the auโ€ฆ

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Engineering Preprint PDF DOI

Synthetic Singers: A Review of Deep-Learning-based Singing Voice Synthesis Approaches

Changhao Pan, Dongyu Yao, Yu Zhang, Wenxiang Guo, Jingyu Lu, Zhiyuan Zhu, Zhou Zhao ยท 2026

Recent advances in singing voice synthesis (SVS) have attracted substantial attention from both academia and industry. With the advent of large language models and novel generative paradigms, producinโ€ฆ

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Engineering Preprint PDF DOI

Calling for Backup: How Children Navigate Successive Robot Communication Failures

Maria Teresa Parreira, Isabel Neto, Filipa Rocha, Wendy Ju ยท 2026

How do children respond to repeated robot errors? While prior research has examined adult reactions to successive robot errors, children's responses remain largely unexplored. In this study, we explorโ€ฆ

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Engineering Preprint PDF DOI

A Neural Network-Based Real-time Casing Collar Recognition System for Downhole Instruments

Si-Yu Xiao, Xin-Di Zhao, Xiang-Zhan Wang, Tian-Hao Mao, Ying-Kai Liao, Xing-Yu Liao, Yu-Qiao Chen, Jun-Jie Wang, Shuang Liu, Tu-Pei Chen, Yang Liu ยท 2025

Casing collar locator (CCL) measurements are widely used as reliable depth markers for positioning downhole instruments in cased-hole operations, enabling accurate depth control for operations such asโ€ฆ

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Engineering Preprint PDF DOI

Gallant: Voxel Grid-based Humanoid Locomotion and Local-navigation across 3D Constrained Terrains

Qingwei Ben, Botian Xu, Kailin Li, Feiyu Jia, Wentao Zhang, Jingping Wang, Jingbo Wang, Dahua Lin, Jiangmiao Pang ยท 2025

Robust humanoid locomotion requires accurate and globally consistent perception of the surrounding 3D environment. However, existing perception modules, mainly based on depth images or elevation maps,โ€ฆ

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Engineering Preprint PDF DOI

Geometric Decentralized Stability Certificate for Power Systems Based on Projecting DW Shells

Linbin Huang, Liangxiao Luo, Ruohan Leng, Huanhai Xin, Dan Wang, Florian Dorfler ยท 2025

The development of decentralized stability conditions has gained considerable attention due to the need to analyze multi-agent network systems, such as heterogeneous multi-converter power systems. A rโ€ฆ

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Engineering Preprint PDF DOI

Fair-CoPlan: Negotiated Flight Planning with Fair Deconfliction for Urban Air Mobility

Nicole Fronda, Phil Smith, Bardh Hoxha, Yash Pant, Houssam Abbas ยท 2025

Urban Air Mobility (UAM) is an emerging transportation paradigm in which Uncrewed Aerial Systems (UAS) autonomously transport passengers and goods in cities. The UAS have different operators with diffโ€ฆ

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Engineering Preprint PDF DOI

Large Kernel MedNeXt for Breast Tumor Segmentation and Self-Normalizing Network for pCR Classification in Magnetic Resonance Images

Toufiq Musah ยท 2025

Accurate breast tumor segmentation in dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is important for downstream tasks such as pathological complete response (pCR) assessment. In this โ€ฆ

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Engineering Preprint PDF DOI

MIMII-Agent: Leveraging LLMs with Function Calling for Relative Evaluation of Anomalous Sound Detection

Harsh Purohit, Tomoya Nishida, Kota Dohi, Takashi Endo, Yohei Kawaguchi ยท 2025

This paper proposes a method for generating machine-type-specific anomalies to evaluate the relative performance of unsupervised anomalous sound detection (UASD) systems across different machine typesโ€ฆ

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Engineering Preprint PDF DOI

The Phantom of Davis-Wielandt Shell: A Unified Framework for Graphical Stability Analysis of MIMO LTI Systems

Ding Zhang, Xiaokan Yang, Axel Ringh, Li Qiu ยท 2025

This paper presents a unified framework based on Davis-Wielandt (DW) shell for graphical stability analysis of multi-input and multi-output linear time-invariant feedback systems. Connections between โ€ฆ

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Engineering Preprint PDF DOI

The Milieu, Science & Logic of Feedback Control

Robert R. Bitmead ยท 2025

'The cardinal sin in control is to believe that the plant is given' Karl Astrom. Astrom, a towering figure of control theory and practice and awardee of the 1993 IEEE Medal of Honor for his work on adโ€ฆ

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Biologically Inspired Deep Learning Approaches for Fetal Ultrasound Image Classification

Rinat Prochii, Elizaveta Dakhova, Pavel Birulin, Maxim Sharaev ยท 2025

Accurate classification of second-trimester fetal ultrasound images remains challenging due to low image quality, high intra-class variability, and significant class imbalance. In this work, we introdโ€ฆ

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Compact Amplified Laser Power Stabilization Using Robust Active Disturbance Rejection Control with Sensor Noise Decoupling

Yanpei Shi, Jingxuan Zhang, Zhuo Shi, Chenyao Zhang, Yuze Guo, Rui Feng ยท 2025

Laser power instability, encompassing random jitter and slow drift, severely limits the performance of optically pumped magnetometers (OPMs) in detecting ultra-weak magnetic fields, especially in largโ€ฆ

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