19 papers · ranked by Valyu relevance
Qilu Zhang, Hongying Tang, Wen Chen, Ziyi Song + 1 more
—Accurately and efficiently addressing the multiple source localization (MSL) problem in urban environments, particularly designing a general method adaptable to an arbitrary number of sources, plays a crucial role in various fields such as cognitive radio (CR). Existing methods either fail to effectively utilize…
David Hart, Simon Polishchuk, Moritz Dannhauer
An electroencephalogram (EEG) is an electrical measurement of brain activity using electrodes placed on the scalp surface. After EEG measurements are collected, numerical methods and algorithms can be employed to analyze these measurements and attempt to identify the source locations of brain activity. These…
O'Connor, Kesler, Jess, Julia M. + 4 more
We address the problem of localizing the source of infection in an undirected, tree-structured network under a susceptible–infected outbreak model. The infection propagates with independent random time increments (i.e., edge-delays) between neighboring nodes, while only the infection times of a subset of nodes can be…
Yansong Wang, Qisen Chai, Longlong Lin, Tao Jia
Source localization is a representative inverse inference task in information propagation, aiming to identify the source node or node set that triggers the propagation results based on the observed information. A primary challenge is quantifying the inherent uncertainty between observed outcomes and potential sources.…
Amita Giri, Lukas Hecker, John C. Mosher, Amir Adler + 1 more
Accurate localization of neural sources in Magnetoencephalography (MEG) and Electroencephalography (EEG) is essential for advancing clinical and research applications in neuroscience. Traditional approaches like dipole fitting (e.g., MUSIC, RAP-MUSIC) are limited to discrete focal sources, while distributed source…
Yibin Ling, Catherine H. Frank, Naoki Dominguez Kondo, Jose Ramos Mendez + 2 more
$\text{FOV}=2D-(a+r)\frac{\text{BSD}}{\text{BDD}}-(a+r)$ where is detector half-width (25 cm), is BB pattern half-width (for a 6 × 6 cm2 square, a = 3cm), and r is BB radius (5 mm). 2.6.3#### Simulation3: Source shift in different directions We evaluated the robustness of source localization under different source…
Ignacy Czajkowski, Robert Paluch
Source localization in complex networks is a rapidly advancing field with numerous real-world applications, including determining the source of misinformation. In this work, we model information spread across several real-world and synthetic complex networks using our Generalized Fractional…
Michael B. Eisen, Patrick O. Brown, Ana Sanz Matias
Accurately localizing vocalizing animals from passive acoustic recordings remains challenging in complex outdoor soundscapes. Although automated detection and classification of bird calls have advanced rapidly, reliable spatial localization has lagged, particularly for small arrays of autonomous recorders operating…
Xiaofeng Huang, Yang Liu, Longbin Yang, Longjun Dong + 1 more
Acoustic emission (AE) source localization provides important spatial information for damage characterization and fracture evolution analysis in construction materials, while its accuracy and applicability are strongly dependent on sensor network design. This study proposes an optimization framework for selecting an…
Dexian Li, Longjun Dong, Xuemei Wang, Guoxiang Cheng + 4 more
Accurate acoustic emission (AE) source localization in complex structures remains challenging due to non-straight wave propagation paths and the difficulty of obtaining reliable wave velocity models. To address these issues, this study proposes a velocity-free AE source localization method based on an any-angle…
Fangfang Guo, Sharmodeep Bhattacharyya, Shirshendu Chatterjee, David Gent + 1 more
Identifying spatial origins of biological invasions, disease outbreaks, or environmental contaminants is critical for timely intervention. However, existing methods struggle to resolve overlapping signals from multiple sources or account for extreme zero/one inflation in bounded data. We developed HiBASIL (Hierarchical…
Lakshmi Narasimhan Govindarajan, Sagarika Alavilli, Josh H. McDermott
Sensory input is often ambiguous, leading to uncertain interpretations of the external world. Estimates of perceptual uncertainty might be useful in guiding behavior, but it remains unclear whether humans explicitly represent uncertainty in naturalistic settings, and whether any such representations are normatively…
Ishani Janveja, Jida Zhang, Emerson Sie, Deepak Vasisht
This paper focuses on 3D localization of transmitting satellites in low Earth orbits (LEO). 3D localization of transmitters in low orbits is an important emerging problem for many applications such as spectrum management, orbit determination, and backup for GPS failures in orbit. We present StarLoc -- a system to…
Franz-Ullrich Müller, Sebastian Roth, Julian Angermeier, Werner Hemmert + 1 more
Accurate measurement of sound localization depends not only on the acoustic setup but also on the response method used to report the perceived source direction, particularly when visual cues from loudspeaker arrays are minimized. This study compared two response tracking methods specifically designed for concealed…
Alexandria McPherson, Sepp Sanchirico, Albert Xu, Eric Larson + 4 more
Magnetoencephalography (MEG) measures human neural activity non-invasively with spatio-temporal precision, and has been foundational in enabling impactful discoveries in cognitive neuroscience. New on-scalp MEG sensor technologies, such as OPM-MEG, offer the opportunity to capture more information about the neuronal…
Md Afif Al Mamun, Gias Uddin
Bug localization remains a key bottleneck in downstream software maintenance tasks, including root cause analysis, triage, and automated program repair (APR), despite recent advances in large language model (LLM)-based repair systems. File-level bug localization is especially critical in hierarchical pipelines, where…
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Extreme weather events increasingly threaten coastal water quality, yet the mechanisms by which tropical cyclones impair microbial conditions remain poorly quantified. We develop a Large Language Model–Assisted Microbial Source Tracking (LAMST) framework to trace the origins of microbial threats—fecal indicator…
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In the United States, people of color are disproportionately and unjustly exposed to air pollution. Historically, environmental policy has emphasized aggregate emission reductions; yet major emission reduction scenarios do not sufficiently mitigate relative exposure disparities. Here, we show that without focusing on…
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Vibrational exciton models are widely used for the simulation of biomolecular vibrational spectra, in particular of two-dimensional infrared (2D-IR) spectra. The parameters entering such models, specifically harmonic local-mode frequencies and harmonic coupling constants, are provided by vibrational maps, which have…