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Model merging integrates multiple task-specific models into a single consolidated one. Recent research has made progress in improving merging performance for in-distribution or multi-task scenarios, but domain generalization in model…

Machine Learning · Computer Science 2026-03-10 Levy Chaves , Chao Zhou , Rebekka Burkholz , Eduardo Valle , Sandra Avila

We present two parallel optimization algorithms for a convex function $f$. The first algorithm optimizes over linear inequality constraints in a Hilbert space, $\mathbb H$, and the second over a non convex polyhedron in $\mathbb R^n$. The…

Optimization and Control · Mathematics 2025-10-22 E. Dov Neimand , Serban Sabau

The asymptotic behavior of the first eigenvalues of magnetic Laplacian operators with large magnetic fields and Neumann realization in smooth three-dimensional domains is characterized by model problems inside the domain or on its boundary.…

Spectral Theory · Mathematics 2017-11-23 Virginie Bonnaillie-Noël , Monique Dauge , Nicolas Popoff

This work presents the development of a parallel manipulator used for otological surgery from the perspective of co-design. Co-design refers to the simultaneous involvement of the end-users (surgeons), stakeholders (designers, ergonomic…

Robotics · Computer Science 2024-08-23 Durgesh Haribhau Salunkhe , Guillaume Michel , Shivesh Kumar , Damien Chablat

The class of linear pentapods with a simple singularity variety is obtained by imposing architectural restrictions on the design in such a way that the manipulators singularity variety is linear in orientation position variables. It turns…

Optimization and Control · Mathematics 2019-10-14 Arvin Rasoulzadeh , Georg Nawratil

Motivated by importance of operator spaces contained in the set of all scalar multiples of isometries ($MI$-spaces) in a separable Hilbert space for $C^*$-algebras and E-semigroups we exhibit more properties of such spaces. For example, if…

Operator Algebras · Mathematics 2008-05-23 Waclaw Szymanski

Robot simulators are indispensable tools across many fields, and recent research has significantly improved their functionality by incorporating additional gradient information. However, existing differentiable robot simulators suffer from…

Robotics · Computer Science 2024-12-30 Xiaohan Ye , Xifeng Gao , Kui Wu , Zherong Pan , Taku Komura

This paper investigates the differentiable dynamic modeling of mobile manipulators to facilitate efficient motion planning and physical design of actuators, where the actuator design is parameterized by physically meaningful motor geometry…

Robotics · Computer Science 2024-05-03 Zehui Lu , Yebin Wang

The paper presents a methodology to enhance the stiffness analysis of serial and parallel manipulators with passive joints. It directly takes into account the loading influence on the manipulator configuration and, consequently, on its…

Robotics · Computer Science 2011-04-06 Anatoly Pashkevich , Alexandr Klimchik , Damien Chablat

In contexts such as teleoperation, robot reprogramming, human-robot-interaction, and neural prosthetics, conveying movement commands to a robotic platform is often a limiting factor. Currently, many applications rely on…

Robotics · Computer Science 2019-09-20 A. Jang Sher , U. Huzaifa , J. Li , V. Jain , A. Zurawski , A. LaViers

The paper focuses on the redundancy resolution in kinematic control of a new type of serial manipulator composed of multiple tensegrity segments, which are moving in a multi-obstacle environment. The general problem is decomposed into two…

Robotics · Computer Science 2021-08-03 Wanda Zhao , Anatol Pashkevich , Damien Chablat

In representations using frames, oblique duality appears in situations where the analysis and the synthesis has to be done in different subspaces. In some cases, we cannot obtain an explicit expression for the oblique duals and in others…

Functional Analysis · Mathematics 2023-05-01 Jorge P. Díaz , Sigrid B. Heineken , Patricia M. Morillas

We describe a new Maple package for treating boundary problems for linear ordinary differential equations, allowing two-/multipoint as well as Stieltjes boundary conditions. For expressing differential operators, boundary conditions, and…

Symbolic Computation · Computer Science 2012-10-11 Anja Korporal , Georg Regensburger , Markus Rosenkranz

A new method for the simulation of evolving multi-domains problems has been introduced in a previous work (RealIMotion), Florez et al. (2020). In this article further developments of the model will be presented. The main focus here is a…

Computational Engineering, Finance, and Science · Computer Science 2023-07-19 Sebastian Florez , Julien Fausty , Karen Alvarado , Brayan Murgas , Marc Bernacki

The paper addresses the geometric synthesis of Orthoglide-type mechanism, a family of 3-DOF parallel manipulators for rapid machining applications, which combine advantages of both serial mechanisms and parallel kinematic architectures.…

Robotics · Computer Science 2007-08-29 Anatoly Pashkevich , Philippe Wenger , Damien Chablat

The three-dimensional potential equation, motivated by representations of quantum mechanics, is investigated in four different scenarios: (i) In the usual Euclidean space $\mathbb{E}_{3}$ where the potential is singular but invariant under…

Mathematical Physics · Physics 2015-11-12 Anadijiban Das , Andrew DeBenedictis

Most industrial machine tools have a serial kinematic architecture, which means that each axis has to carry the following one, including its actuators and joints. High Speed Machining highlights some drawbacks of such architectures: heavy…

Robotics · Computer Science 2007-05-23 Félix Majou , Philippe Wenger , Damien Chablat

Discretizations of infinite-dimensional variational inequalities lead to linear and nonlinear complementarity problems with many degrees of freedom. To solve these problems in a parallel computing environment, we propose two active-set…

Optimization and Control · Mathematics 2007-05-23 Steven J. Benson , Todd S. Munson

Cable-driven parallel robots (CDPRs) are widely investigated and applied in the worldwide; however, traditional configurations make them to be limited in reaching their maximum workspace duo to constraints such as the maximum allowable…

Robotics · Computer Science 2024-10-30 Ronghuai Qi , Hamed Jamshidifar , Amir Khajepour

In our previous work [SIAM J. Sci. Comput. 43(3) (2021) B784-B810], an accurate hyper-singular boundary integral equation method for dynamic poroelasticity in two dimensions has been developed. This work is devoted to studying the more…

Numerical Analysis · Mathematics 2022-02-10 Lu Zhang , Liwei Xu , Tao Yin