Tootfinder

Head-steered channel selection method for hearing aid applications using remote microphones
Vasudha Sathyapriyan, Michael S. Pedersen, Mike Brookes, Jan {\O}stergaard, Patrick A. Naylor, Jesper Jensen
https://arxiv.org/abs/2508.06928

Head-steered channel selection method for hearing aid applications using remote microphones
We propose a channel selection method for hearing aid applications using remote microphones, in the presence of multiple competing talkers. The proposed channel selection method uses the hearing aid user's head-steering direction to identify the remote channel originating from the frontal direction of the hearing aid user, which captures the target talker signal. We pose the channel selection task as a multiple hypothesis testing problem, and derive a maximum likelihood solution. Under realisti…

Til avveksling fra mine sedvanlige #EngelskeGloser, tar vi i dag noen #NorskeGloser. Nærmere bestemt noen #TallOrd
En *million* er 10^6 = 1 000 000, det vet de fleste. Amerikanerne …

Experimental Validation for Serial Conjunction of Diffraction-limited Coronagraph and Fiber Nuller
Satoshi Itoh, Taro Matsuo, Reiki Kojima, Takahiro Sumi, Motohide Tamura
https://arxiv.org/abs/2507.18663

Experimental Validation for Serial Conjunction of Diffraction-limited Coronagraph and Fiber Nuller
We report the experimental results of a serially conjoined nuller system, which combines a type of Lyot coronagraph with a fiber nuller. The utilized one-dimensional diffraction-limited coronagraph (1DDLC) has promising features (binary nuller, small inner working angles (IWAs)). Still, it has a performance that is highly sensitive to spectral bandwidth and tilt aberrations. Nevertheless, for the 1DDLC, wavelengths other than the design wavelength introduce leaks with a flat wavefront on the Ly…

Granulation on a quiet K dwarf: HD 166620 I. Spectral signatures as a function of line-formation temperature
Ancy Anna John, Khaled Al Moulla, Niamh K. O Sullivan, Jay Fitzpatrick, Andrew Collier Cameron, Ben S. Lakeland, Michael Cretignier, Annelies Mortier, Tim Naylor, Joe Llama, Suzanne Aigrain, Christian Hartogh, Shweta Dalal, Heather M. Cegla, Christopher A. Watson, Xavier Dumusque, Aldo F. Martinez Fiorenzano

Granulation on a quiet K dwarf: HD 166620 I. Spectral signatures as a function of line-formation temperature
As Radial velocity (RV) spectrographs reach unprecedented precision and stability below 1 m/s, the challenge of granulation in the context of exoplanet detection has intensified. Despite promising advancements in post-processing tools, granulation remains a significant concern for the EPRV community. We present a pilot study to detect and characterise granulation using the High-Accuracy Radial-velocity Planet Searcher for the Northern hemisphere (HARPS-N) spectrograph. We observed HD166620, a K…

Sparse minimum Redundancy Maximum Relevance for feature selection
Peter Naylor, Benjamin Poignard, H\'ector Climente-Gonz\'alez, Makoto Yamada
https://arxiv.org/abs/2508.18901

Sparse minimum Redundancy Maximum Relevance for feature selection
We propose a feature screening method that integrates both feature-feature and feature-target relationships. Inactive features are identified via a penalized minimum Redundancy Maximum Relevance (mRMR) procedure, which is the continuous version of the classic mRMR penalized by a non-convex regularizer, and where the parameters estimated as zero coefficients represent the set of inactive features. We establish the conditions under which zero coefficients are correctly identified to guarantee acc…

The Outbursting YSOs Catalogue (OYCAT)
C. Contreras Pe\~na, J. -E. Lee, G. Herczeg, D. Johnstone, P. \'Abrah\'am, S. Antoniucci, M. Audard, M. Ashraf, G. Baek, A. Caratti o Garatti, A. Carvalho, L. Cieza, F. Cruz-Sa\'enz de Miera, J. Eisl\"offel, D. Froebrich, T. Giannini, J. Green, A. Ghosh, Z. Guo, L. Hillenbrand, K. Hodapp, H. Jheonn, J. Jose, Y. -J. Kim, A. Kosp\'al, H. -G. Lee, P. W. Lucas, T. Magakian, Z. Nagy, T. Naylor, J. P. Ninan, S. Peneva, Bo Reipurth, …

The Outbursting YSOs Catalogue (OYCAT)
YSOs can display unpredictable and high-amplitude rises in brightness that can last from a few months to possibly over 100 years. These types of outbursts are explained by large changes in the mass accretion rate from the disk onto the central star. The outbursts support to a model of star formation (episodic accretion) where stars would spend most of their lifetimes accreting at low rates, and gain most of their mass through these short-lived accretion outbursts. The universality of episodic a…

The differences in the Narrow Line Region of nearby QSOs 1 and 2 -- I: higher excitation and contribution of shocks in type 1's
Gabriel R. Hauschild-Roier, Thaisa Storchi-Bergmann, Rog\'erio Riffel, Vincenzo Mainieri
https://arxiv.org/abs/2508.14668

The differences in the Narrow Line Region of nearby QSOs 1 and 2 -- I: higher excitation and contribution of shocks in type 1's
We compare the excitation of the Narrow-Line Region (NLR) of type 1 and type 2 QSOs for redshifts $0.4 \le z \le 0.5$ via the analysis of their emission line properties in Sloan Digital Sky Survey (SDSS) near-UV/optical spectra. We fit the continuum and emission lines, using two kinematic components for \oiii$λ$5007 and \hb\ (narrow and broad) and a single component for the weaker lines. We find two main differences in the NLR excitation of type 1 and 2 QSOs: (i) QSOs 2 have higher \oiii/\hb\ …

Dark energy constraints in light of theoretical priors
Neel Shah, Kazuya Koyama, Johannes Noller
https://arxiv.org/abs/2507.19450 https://arxiv.org/pdf/250…

Dark energy constraints in light of theoretical priors
In order to derive model-independent observational bounds on dark energy/modified gravity theories, a typical approach is to constrain parametrised models intended to capture the space of dark energy theories. Here we investigate in detail the effect that the nature of these parametrisations can have, finding significant effects on the resulting cosmological dark energy constraints. In order to observationally distinguish well-motivated and physical parametrisations from unphysical ones, it is …

Crosslisted article(s) found for stat.ME. https://arxiv.org/list/stat.ME/new
[1/1]:
- Sparse minimum Redundancy Maximum Relevance for feature selection
Peter Naylor, Benjamin Poignard, H\'ector Climente-Gonz\'alez, Makoto Yamada

Binaural Speech Enhancement Using Complex Convolutional Recurrent Networks
Vikas Tokala, Eric Grinstein, Mike Brookes, Simon Doclo, Jesper Jensen, Patrick A. Naylor
https://arxiv.org/abs/2507.20023

Binaural Speech Enhancement Using Complex Convolutional Recurrent Networks
From hearing aids to augmented and virtual reality devices, binaural speech enhancement algorithms have been established as state-of-the-art techniques to improve speech intelligibility and listening comfort. In this paper, we present an end-to-end binaural speech enhancement method using a complex recurrent convolutional network with an encoder-decoder architecture and a complex LSTM recurrent block placed between the encoder and decoder. A loss function that focuses on the preservation of spa…