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To investigate the heterogeneity in federated learning in real-world scenarios, we generalize the classic federated learning to federated hetero-task learning, which emphasizes the inconsistency across the participants in federated learning…

Machine Learning · Computer Science 2022-06-22 Liuyi Yao , Dawei Gao , Zhen Wang , Yuexiang Xie , Weirui Kuang , Daoyuan Chen , Haohui Wang , Chenhe Dong , Bolin Ding , Yaliang Li

Federated learning (FL) is increasingly being recognized as a key approach to overcoming the data silos that so frequently obstruct the training and deployment of machine-learning models in clinical settings. This work contributes to a…

Machine Learning · Computer Science 2024-07-08 Fatemeh Tavakoli , D. B. Emerson , Sana Ayromlou , John Jewell , Amrit Krishnan , Yuchong Zhang , Amol Verma , Fahad Razak

A study of alternative transforms to FFT in order to compare their potential to enhance resolution and computation time in the framework of THz time domain spectroscopy (THz-TDS) instruments is carried out. Both from simulated and…

Signal Processing · Electrical Eng. & Systems 2021-08-10 Abel Garcia-Devesa , Miguel A Baez-Chorro , Borja Vidal

An optimized phonon approach for the numerical diagonalization of interacting electron-phonon systems is proposed. The variational method is based on an expansion in coherent states that leads to a dramatic truncation in the phonon space.…

Strongly Correlated Electrons · Physics 2009-11-10 V. Cataudella , G. De Filippis , F. Martone , C. A. Perroni

As a key step towards a complete automation of the finite element method, we present a new algorithm for automatic and efficient evaluation of multilinear variational forms. The algorithm has been implemented in the form of a compiler, the…

Numerical Analysis · Mathematics 2011-12-05 Robert C. Kirby , Anders Logg

The aim of this paper is to summarize some recently obtained relations between the Ablowitz-Ladik hierarchy (ALH) and other integrable equations. It has been shown that solutions of finite subsystems of the ALH can be used to derive a wide…

solv-int · Physics 2007-05-23 V. E. Vekslerchik

Measurements of line-of-sight dependent clustering via the galaxy power spectrum's multipole moments constitute a powerful tool for testing theoretical models in large-scale structure. Recent work shows that this measurement, including a…

Cosmology and Nongalactic Astrophysics · Physics 2017-07-19 Nick Hand , Yin Li , Zachary Slepian , Uros Seljak

The construction of high-order structure-preserving numerical schemes to solve hyperbolic conservation laws has attracted a lot of attention in the last decades and various different ansatzes exist. In this paper, we compare three…

Numerical Analysis · Mathematics 2022-03-02 Dorian Hillebrand , Simon-Christian Klein , Philipp Öffner

In this paper we examine the effect of applying ensemble learning to the performance of collaborative filtering methods. We present several systematic approaches for generating an ensemble of collaborative filtering models based on a single…

Information Retrieval · Computer Science 2012-11-14 Ariel Bar , Lior Rokach , Guy Shani , Bracha Shapira , Alon Schclar

Existing LLMs-post-training techniques are broadly categorized into supervised fine-tuning (SFT) and reinforcement fine-tuning (RFT). Each paradigm presents a distinct trade-off: (1) SFT excels at mimicking demonstration data, but can lead…

Machine Learning · Computer Science 2026-05-18 Zeyu Huang , Tianhao Cheng , Zihan Qiu , Zili Wang , Yinghui Xu , Edoardo M. Ponti , Ivan Titov

Information bottleneck (IB) and privacy funnel (PF) are two closely related optimization problems which have found applications in machine learning, design of privacy algorithms, capacity problems (e.g., Mrs. Gerber's Lemma), strong data…

Information Theory · Computer Science 2020-12-30 Shahab Asoodeh , Flavio Calmon

Federated fine-tuning (FedFT) of large language models (LLMs) has emerged as a promising solution for adapting models to distributed data environments while ensuring data privacy. Existing FedFT methods predominantly utilize…

Machine Learning · Computer Science 2025-06-09 Yujia Huo , Jianchun Liu , Hongli Xu , Zhenguo Ma , Shilong Wang , Liusheng Huang

We investigate the transmission of densely multiplexed solitons using a photonic integrated chip and the nonlinear Fourier-transform and analyze required launch conditions, the effect of (de-)multiplexing and noise on the nonlinear…

Signal Processing · Electrical Eng. & Systems 2020-12-04 Jonas Koch , Alvaro Moscoso-Mártir , Juliana Müller , Florian Merget , Stephan Pachnicke , Jeremy Witzens

The influence of a chemically or electrically heterogeneous distribution of interaction sites at a planar substrate on the number density of an adjacent fluid is studied by means of classical density functional theory (DFT). In the case of…

Soft Condensed Matter · Physics 2018-05-25 Maximilian Mußotter , Markus Bier , S. Dietrich

A general lattice Boltzmann method for simulation of fluids with tailored transport coefficients is presented. It is based on the recently introduced quasi-equilibrium kinetic models, and a general lattice Boltzmann implementation is…

Statistical Mechanics · Physics 2007-05-23 S. Ansumali , S. Arcidiacono , S. Chikatamarla , N. I. Prasianakis , A. N. Gorban , I. V. Karlin

Federated recommendation (FR) facilitates collaborative training by aggregating local models from massive devices, enabling client-specific personalization while ensuring privacy. However, we empirically and theoretically demonstrate that…

Distributed, Parallel, and Cluster Computing · Computer Science 2025-08-19 Jundong Chen , Honglei Zhang , Chunxu Zhang , Fangyuan Luo , Yidong Li

Large language models (LLMs) have been applied to a wide range of tasks, including text summarization, web navigation, and chatbots. They have benefitted from supervised fine-tuning (SFT) and reinforcement learning from human feedback…

Computation and Language · Computer Science 2024-08-07 Ryan Aponte , Ryan A. Rossi , Shunan Guo , Franck Dernoncourt , Tong Yu , Xiang Chen , Subrata Mitra , Nedim Lipka

We present a comprehensive investigation of lattice dynamics in the double-helix antiferromagnet FeP by means of high-resolution time-of-flight neutron spectroscopy and ab-initio calculations. Phonons can hybridize with the magnetic…

This paper focuses on \textit{joint detection, tracking and classification} (JDTC) of a target via multi-sensor fusion. The target can be present or not, can belong to different classes, and depending on its class can behave according to…

Signal Processing · Electrical Eng. & Systems 2021-09-24 Gaiyou Li , Ping Wei , Giorgio Battistelli , Luigi Chisci , Lin Gao

Perturbation of logarithmic conformal field theories is investigated using Zamolodchikov's method. We derive conditions for the perturbing operator, such that the perturbed model be integrable. We also consider an example where integrable…

High Energy Physics - Theory · Physics 2008-11-26 M. A. Rajabpour , S. Rouhani
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