Tootfinder

Towards Multimodal Understanding via Stable Diffusion as a Task-Aware Feature Extractor
Vatsal Agarwal, Matthew Gwilliam, Gefen Kohavi, Eshan Verma, Daniel Ulbricht, Abhinav Shrivastava
https://arxiv.org/abs/2507.07106

Towards Multimodal Understanding via Stable Diffusion as a Task-Aware Feature Extractor
Recent advances in multimodal large language models (MLLMs) have enabled image-based question-answering capabilities. However, a key limitation is the use of CLIP as the visual encoder; while it can capture coarse global information, it often can miss fine-grained details that are relevant to the input query. To address these shortcomings, this work studies whether pre-trained text-to-image diffusion models can serve as instruction-aware visual encoders. Through an analysis of their internal re…

Measurement of the CP asymmetry in $D^ \to \pi^ \pi^0$ decays at Belle II
Collaboration, Adachi, Aggarwal, Ahmed, Aihara, Akopov, Alghamdi, Alhakami, Aloisio, Amos, Angelsmark, Ky, Antonioli, Asner, Atmacan, Aushev, Aversano, Ayad, Babu, Bae, Baghel, Bambade, Banerjee, Bansal, Barrett, Bartl, Baudot, Baur, Beaubien, Becherer, Becker, Bennett, Bernlochner, Bertacchi, Bertemes, Bertholet, Bessner, Bettarini, Bhardwaj, Bhuyan, Bianchi, Biswas, Bobrov, Bodrov, Bondar, Bonvicini, Borah, B…

Measurement of the CP asymmetry in $D^+ \to π^+ π^0$ decays at Belle II
We measure the CP asymmetry in $D^+ \to π^+ π^0$ decays reconstructed in $e^+ e^-$ collisions at the Belle II experiment using a data set corresponding to an integrated luminosity of 428 fb$^{-1}$. A control sample of $D^+ \to π^+ K_{S}$ decays is used to correct for detection and production asymmetries. The result, $A_{CP}(D^+ \to π^+π^0) =(-1.8 \pm 0.9 \pm 0.1)\%$, where the first uncertainty is statistical and the second systematic, is the most precise determination to date. It agrees w…

Frobenius and Verschiebung for $K$-theory of endomorphisms
Sanjana Agarwal, Jonathan Campbell, Diego Manco, Kate Ponto, Zhonghui Sun
https://arxiv.org/abs/2507.05956

Frobenius and Verschiebung for $K$-theory of endomorphisms
We show that the Frobenius and Verschiebung maps that are fundamental to Witt vectors lift to the reduced K-theory of endomorphisms. In particular, we define Frobenius and Verschiebung maps for the reduced K-theory of twisted endomorphisms of modules over non commutative rings and show they have the expected behavior after applying the iterated trace map

Learning To Communicate Over An Unknown Shared Network
Shivangi Agarwal, Adi Asija, Sanjit K. Kaul, Arani Bhattacharya, Saket Anand
https://arxiv.org/abs/2507.06499

Learning To Communicate Over An Unknown Shared Network
As robots (edge-devices, agents) find uses in an increasing number of settings and edge-cloud resources become pervasive, wireless networks will often be shared by flows of data traffic that result from communication between agents and corresponding edge-cloud. In such settings, agent communicating with the edge-cloud is unaware of state of network resource, which evolves in response to not just agent's own communication at any given time but also to communication by other agents, which stays u…

An SBC-based controller and processor for the laboratory model of PRATUSH Digital Receiver
Srivani K. S., Girish B. S., Mayuri Sathyanarayana Rao, Saurabh Singh, Adarsh Kumar Dash, Narendra S., Yash Agrawal, Keerthipriya S., Somashekar R., Madhavi S., Jacob Rajan, Udaya Shankar N., Seetha S
https://arxiv.org/abs/2507.05655

An SBC-based controller and processor for the laboratory model of PRATUSH Digital Receiver
Probing ReionizATion of the Universe using Signal from Hydrogen (PRATUSH) is a proposed space-based radiometer that aims to detect the sky-averaged 21-cm signal from Cosmic Dawn - a crucial phase in the cosmic evolution of the Universe. PRATUSH will operate in the frequency range of 55-110 MHz. PRATUSH will conduct observations in low earth orbit in its first phase, followed by lunar orbit in the second phase. Digital correlation spectrometer is an integral subsystem of PRATUSH radiometer, enab…

"What's Up, Doc?": Analyzing How Users Seek Health Information in Large-Scale Conversational AI Datasets
Akshay Paruchuri, Maryam Aziz, Rohit Vartak, Ayman Ali, Best Uchehara, Xin Liu, Ishan Chatterjee, Monica Agrawal
https://arxiv.org/abs/2506.21532

"What's Up, Doc?": Analyzing How Users Seek Health Information in Large-Scale Conversational AI Datasets
People are increasingly seeking healthcare information from large language models (LLMs) via interactive chatbots, yet the nature and inherent risks of these conversations remain largely unexplored. In this paper, we filter large-scale conversational AI datasets to achieve HealthChat-11K, a curated dataset of 11K real-world conversations composed of 25K user messages. We use HealthChat-11K and a clinician-driven taxonomy for how users interact with LLMs when seeking healthcare information in or…

A weighted divisor problem and exponential sum
Kritika Aggarwal, Debika Banerjee
https://arxiv.org/abs/2507.01891 https://arxiv.org/p…

A weighted divisor problem and exponential sum
In this paper, we investigate a weighted divisor problem involving the exponential sum of $D_{(1)}(n)$, the $n$th coefficient in the Dirichlet series expansion of $ζ'(s)^2$. We establish a truncated Voronoï type formula for the error term of $\sum_{n\leq x}D_{(1)}(n)e(nh/k)$, analogous to the results obtained by Jutila. Utilizing this truncated formula, we derive a mean square estimate of the error term. In addition, we study the associated Riesz sum and the corresponding error term, along wi…

Search for an Axion-Like Particle in $B\rightarrow K^{(*)} a (\rightarrow\gamma\gamma)$ Decays at Belle
, Collaborations, , Adachi, Aggarwal, Ahmed, Ahn, Aihara, Akopov, Alghamdi, Alhakami, Aloisio, Althubiti, Amos, Angelsmark, Ky, Antonioli, Asner, Atmacan, Aushev, Aushev, Aversano, Ayad, Babu, Bae, Baghel, Bahinipati, Bambade, Banerjee, Bansal, Barrett, Bartl, Baudot, Baur, Beaubien, Becherer, Becker, Bennett, Bernlochner, Bertacchi, Bertemes, Bertholet, Bessner, Bettarini, Bhuyan, B…

Search for an Axion-Like Particle in $B\rightarrow K^{(*)} a (\rightarrowγγ)$ Decays at Belle
We report a search for an axion-like particle $a$ in $B\rightarrow K^{(*)} a (\rightarrowγγ)$ decays using data collected with the Belle detector at the KEKB asymmetric energy electron-positron collider. The search is based on a $711 \mathrm{fb^{-1}}$ data sample collected at the $Υ4S$ resonance energy, corresponding to a sample of $772\times10^6$ $Υ4S$ events. In this study, we search for the decay of the axion-like particle into a pair of photons, $a \rightarrow γγ$. We scan the two-pho…

Observation of the decays $B^{ } \to \Sigma_{c}(2455)^{ } \overline{\Xi}_{c}^{-}$ and $B^{0} \to \Sigma_{c}(2455)^{0} \overline{\Xi}_{c}^{0}$
, Collaborations, , Abumusabh, Adachi, Aggarwal, Ahmed, Ahn, Aihara, Akopov, Alghamdi, Alhakami, Aloisio, Althubiti, Amos, Ky, Asner, Atmacan, Aushev, Aushev, Ayad, Babu, Bae, Baghel, Bahinipati, Bambade, Banerjee, Barrett, Bartl, Baudot, Baur, Beaubien, Becherer, Becker, Bennett, Bernlochner, Bertacchi, Bertemes, Bertholet, Bessner, Bettarini, …

Observation of the decays $B^{+} \to Σ_{c}(2455)^{++} \overlineΞ_{c}^{-}$ and $B^{0} \to Σ_{c}(2455)^{0} \overlineΞ_{c}^{0}$
We report the first observation of the two-body baryonic decays $B^{+} \to Σ_{c}(2455)^{++} \overlineΞ_{c}^{-}$ and $B^{0} \to Σ_{c}(2455)^{0} \overlineΞ_{c}^{0}$ with significances of $7.3\,σ$ and $6.2\,σ$, respectively, including statistical and systematic uncertainties. The branching fractions are measured to be $\mathcal{B}(B^{+} \to Σ_{c}(2455)^{++} \overlineΞ_{c}^{-}) = (5.74 \pm 1.11 \pm 0.42_{-1.53}^{+2.47}) \times 10^{-4}$ and $\mathcal{B}(B^{0} \to Σ_{c}(2455)^{0} \overlineΞ…

Radio emission from airplanes as observed with RNO-G
G Collaboration, S. Agarwal, J. A. Aguilar, N. Alden, S. Ali, P. Allison, M. Betts, D. Besson, A. Bishop, O. Botner, S. Bouma, S. Buitink, R. Camphyn, J. Chan, S. Chiche, B. A. Clark, A. Coleman, K. Couberly, S. de Kockere, K. D. de Vries, C. Deaconu, P. Giri, C. Glaser, T. Gl\"usenkamp, H. Gui, A. Hallgren, S. Hallmann, J. C. Hanson, K. Helbing, B. Hendricks, J. Henrichs, N. Heyer, C. Hornhuber, E. Huesca Santiago, K. Hughes, A…

Radio emission from airplanes as observed with RNO-G
This paper describes how intentional and unintentional radio emission from airplanes is recorded with the Radio Neutrino Observatory Greenland (RNO-G). We characterize the received signals and define a procedure to extract a clean set of impulsive signals. These signals are highly suitable for instrument calibration, also for future experiments. A set of signals is used to probe the timing precision of RNO-G in-situ, which is found to match expectations. We also discuss the impact of these sign…