Tootfinder

GPS-DRIFT: Marine Surface Robot Localization using IMU-GPS Fusion and Invariant Filtering
Surya Pratap Singh, Tsimafei Lazouski, Maani Ghaffari
https://arxiv.org/abs/2507.02198

GPS-DRIFT: Marine Surface Robot Localization using IMU-GPS Fusion and Invariant Filtering
This paper presents an extension of the DRIFT invariant state estimation framework, enabling robust fusion of GPS and IMU data for accurate pose and heading estimation. Originally developed for testing and usage on a marine autonomous surface vehicle (ASV), this approach can also be utilized on other mobile systems. Building upon the original proprioceptive only DRIFT algorithm, we develop a symmetry-preserving sensor fusion pipeline utilizing the invariant extended Kalman filter (InEKF) to int…

Quantum optical reset with classical memory
Evgeniy O. Kiktenko, Oleg M. Sotnikov, Ilia A. Iakovlev, Yuri A. Biriukov, Aleksey K. Fedorov, Stanislav S. Straupe, Ivan V. Dyakonov, Vladimir V. Mazurenko
https://arxiv.org/abs/2509.02980

Quantum optical reset with classical memory
Dynamic quantum circuits generate states that depend on the measurement results obtained during circuit execution. To date such a quantum computing model has mainly been implemented with qubit-based superconducting hardware utilizing reset operations and classical logic. Here we develop a model of optical reset by using time-bin self-looped interferometers demonstrated in recent experiments. Synchronizing the optical reset with a simple classical device storing history of measurement results al…

MLSD: A Novel Few-Shot Learning Approach to Enhance Cross-Target and Cross-Domain Stance Detection
Parush Gera, Tempestt Neal
https://arxiv.org/abs/2509.03725 https://

MLSD: A Novel Few-Shot Learning Approach to Enhance Cross-Target and Cross-Domain Stance Detection
We present the novel approach for stance detection across domains and targets, Metric Learning-Based Few-Shot Learning for Cross-Target and Cross-Domain Stance Detection (MLSD). MLSD utilizes metric learning with triplet loss to capture semantic similarities and differences between stance targets, enhancing domain adaptation. By constructing a discriminative embedding space, MLSD allows a cross-target or cross-domain stance detection model to acquire useful examples from new target domains. We …

Advanced Printed Sensors for Environmental Applications: A Path Towards Sustainable Monitoring Solutions
Nikolaos Papanikolaou, Doha Touhafi, Jurgen Vandendriessche, Danial Karimi, Sohail Fatimi, Gianluca Cornetta, Abdellah Touhafi
https://arxiv.org/abs/2507.02067

Advanced Printed Sensors for Environmental Applications: A Path Towards Sustainable Monitoring Solutions
Printed sensors represent a transformative advancement in sensor technology, utilizing innovative printing techniques to create flexible, cost-effective, and highly customizable sensing devices. Their versatility allows integration into numerous applications across diverse fields such as monitoring a wide range of environmental factors e.g. air and water quality, soil conditions, and atmospheric changes among others. These sensors demonstrate high sensitivity and accuracy in detecting pollutant…

System Identification via Validation and Adaptation for Model Updating Applied to a Nonlinear Cantilever Beam
Cristian L\'opez, Jackson E. Herzlieb, Keegan J. Moore
https://arxiv.org/abs/2508.00931

System Identification via Validation and Adaptation for Model Updating Applied to a Nonlinear Cantilever Beam
The recently proposed System Identification via Validation and Adaptation (SIVA) method allows system identification, uncertainty quantification, and model validation directly from data. Inspired by generative modeling, SIVA employs a neural network that converts random noise to physically meaningful parameters. The known equation of motion utilizes these parameters to generate fake accelerations, which are compared to real training data using a mean square error loss. For concurrent parameter …

Oscillating chemical reactions enable communication between responsive hydrogels
Joseph J. Webber, Thomas D. Montenegro-Johnson
https://arxiv.org/abs/2508.02399 https://

Oscillating chemical reactions enable communication between responsive hydrogels
Responsive hydrogels can sense environmental stimuli and respond as actuators by expelling water and changing shape. In this article, we develop theory to demonstrate that groups of responsive hydrogels can also communicate with each other, by utilising the effect of elastic deformation on chemical reaction dynamics. Specifically, we consider a system of two spatially-separated chemically responsive hydrogels suspended in a solution in which a Belousov-Zhabotinsky (BZ)-type reaction occurs. Sol…

The clustering of C IV and Si IV at the end of reionisation: A perspective from the E-XQR-30 survey
Louise Welsh, Valentina D'Odorico, Fabio Fontanot, Rebecca Davies, Sarah E. I. Bosman, Guido Cupani, George Becker, Laura Keating, Emma Ryan-Weber, Manuela Bischetti, Martin Haehnelt, Huanqing Chen, Yongda Zhu, Samuel Lai, Michaela Hirschmann, Lizhi Xie, Yuxiang Qin

The clustering of C IV and Si IV at the end of reionisation: A perspective from the E-XQR-30 survey
We aim to study the clustering of metal absorption lines and the structures that they arise in as a function of cosmic time. We focus on C IV and Si IV absorption features that are identified along a given quasar sightline. We exploit the two-point correlation function (2PCF) to investigate the clustering of these structures as a function of their separation. We utilise the E-XQR-30 data to perform a novel analysis at z>5. We also draw on literature surveys (including XQ-100) of lower redshift …

Ami·es journalistes : saviez-vous que vous pouvez trahir vos sources par l'utilisation d'une messagerie chiffrée protégeant mal votre graph social (c'est-Š-dire "qui parle Š qui") ?
Avec la complicité des États-Unis (pour Signal et Matrix) ou de la France (pour Olvid), c'est pourtant le cas.
Pour en savoir plus, je donne une conférence sur la protection des métadonnées par les messageries chiffrées Š @…

PathDB: A system for evaluating regular path queries
Roberto Garc\'ia, Renzo Angles, Vicente Rojas, Sebasti\'an Ferrada
https://arxiv.org/abs/2507.01755

PathDB: A system for evaluating regular path queries
PathDB is a Java-based graph database designed for in-memory data loading and querying. By utilizing Regular Path Queries (RPQ) and a closed path algebra, PathDB processes paths through its three main components: the parser, the logical plan, and the physical plan. This modular design allows for targeted optimizations and modifications without impacting overall functionality. Benchmark experiments illustrate PathDB's execution times and flexibility in handling dynamic and complex path queries, …

On Performance of IoT Networks with Coordinated NOMA Transmission: Covert Monitoring and Information Decoding
Thai-Hoc Vu, Anh-Tu Le, Ngo Hoang Tu, Tan N. Nguyen, Miroslav Voznak
https://arxiv.org/abs/2509.01935

On Performance of IoT Networks with Coordinated NOMA Transmission: Covert Monitoring and Information Decoding
This work investigates the covertness and security performance of Internet-of-Things (IoTs) networks under Rayleigh fading environments. Specifically, a cellular source transmits covert information to cell-edge users with the assistance of an IoT master node, employing a coordinated direct and relay transmission strategy combined with non-orthogonal multiple access (NOMA). This approach not only enhances spectrum utilization but also generates friendly interference to complicate a warden's surv…