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Robots are expected to grasp a wide range of objects varying in shape, weight or material type. Providing robots with tactile capabilities similar to humans is thus essential for applications involving human-to-robot or robot-to-robot…

Robotics · Computer Science 2022-07-26 Pedro Machado , T. M. McGinnity

Semiconductor device models are essential to understand the charge transport in thin film transistors (TFTs). Using these TFT models to draw inference involves estimating parameters used to fit to the experimental data. These experimental…

Machine Learning · Computer Science 2021-11-29 Neel Chatterjee , Somya Sharma , Sarah Swisher , Snigdhansu Chatterjee

Inference in models where the parameter is defined by moment inequalities is of interest in many areas of economics. This paper develops a new method for improving the performance of generalized moment selection (GMS) testing procedures in…

Econometrics · Economics 2020-08-26 Rami V. Tabri , Christopher D. Walker

Authentication schemes using tokens or biometric modalities have been proposed to ameliorate the security strength on mobile devices. However, the existing approaches are obtrusive since the user is required to perform explicit gestures in…

Cryptography and Security · Computer Science 2016-02-11 Thang Hoang , Deokjai Choi , Thuc Nguyen

In order to accurately identify the performance status of mobile devices and finely adjust the user experience, a real-time performance perception evaluation method based on TOPSIS (Technique for Order Preference by Similarity to Ideal…

Performance · Computer Science 2024-09-06 Zhe Wang , Zhen Wang , Jianwen Wu , Wangzhong Xiao , Yidong Chen , Zihua Feng , Dian Yang , Hongchen Liu , Bo Liang , Jiaojiao Fu

This paper builds on our previous work by exploiting Artificial Intelligence to predict individual grip force variability in manual robot control. Grip forces were recorded from various loci in the dominant and non dominant hands of…

We address the challenging task of detecting the precise moment when hands make contact with objects in egocentric videos. This frame-level detection is crucial for augmented reality, human-computer interaction, assistive technologies, and…

Computer Vision and Pattern Recognition · Computer Science 2026-04-15 Huy Anh Nguyen , Feras Dayoub , Minh Hoai

Accurate 3D hand pose estimation plays an important role in Human Machine Interaction (HMI). In the reality of HMI, joints in fingers stretching out, especially corresponding fingertips, are much more important than other joints. We propose…

Computer Vision and Pattern Recognition · Computer Science 2018-07-26 Cairong Zhang , Guijin Wang , Hengkai Guo , Xinghao Chen , Fei Qiao , Huazhong Yang

Quality assessment of fingerprints captured using digital cameras and smartphones, also called fingerphotos, is a challenging problem in biometric recognition systems. As contactless biometric modalities are gaining more attention, their…

Computer Vision and Pattern Recognition · Computer Science 2024-07-17 Amol S. Joshi , Ali Dabouei , Jeremy Dawson , Nasser Nasrabadi

Discrimination mitigation within machine learning (ML) models could be complicated because multiple factors may be interwoven hierarchically and historically. Yet few existing fairness measures can capture the discrimination level within ML…

Machine Learning · Computer Science 2025-05-20 Yijun Bian , Yujie Luo , Ping Xu

An energy efficient use of large scale sensor networks necessitates activating a subset of possible sensors for estimation at a fusion center. The problem is inherently combinatorial; to this end, a set of iterative, randomized algorithms…

Information Theory · Computer Science 2017-09-13 Arpan Chattopadhyay , Urbashi Mitra

A plethora of biometric measures have been proposed in the past. In this paper we introduce a new potential biometric measure: the human tremor. We present a new method for identifying the user of a handheld device using characteristics of…

Human-Computer Interaction · Computer Science 2016-06-23 Oana Miu , Adrian Zamfir , Corneliu Florea

This is a technical report that extends and clarifies the results presented in [1]. The model identification problem for asymptotically stable linear time invariant systems is considered. The system output is affected by an additive noise…

Optimization and Control · Mathematics 2018-09-05 Marco Lauricella , Lorenzo Fagiano

The multi-class prediction had gained popularity over recent years. Thus measuring fit goodness becomes a cardinal question that researchers often have to deal with. Several metrics are commonly used for this task. However, when one has to…

Machine Learning · Computer Science 2022-08-12 Uri Itai , Natan Katz

The ``fast iterative shrinkage-thresholding algorithm'', a.k.a. FISTA, is one of the most widely used algorithms in the literature. However, despite its optimal theoretical $O(1/k^2)$ convergence rate guarantee, oftentimes in practice its…

Optimization and Control · Mathematics 2018-07-12 Jingwei Liang , Carola-Bibiane Schönlieb

Fingernail imaging has been proven to be effective in prior works [1],[2] for estimating the 3D fingertip forces with a maximum RMS estimation error of 7%. In the current research, fingernail imaging is used to perform unconstrained grasp…

Robotics · Computer Science 2021-10-01 Navid Fallahinia , Stephen A. Mascaro

In this paper, we investigate common pitfalls affecting the evaluation of authentication systems based on touch dynamics. We consider different factors that lead to misrepresented performance, are incompatible with stated system and threat…

Cryptography and Security · Computer Science 2023-01-10 Martin Georgiev , Simon Eberz , Henry Turner , Giulio Lovisotto , Ivan Martinovic

We describe a single fingertip-mounted sensing system for robot manipulation that provides proximity (pre-touch), contact detection (touch), and force sensing (post-touch). The sensor system consists of optical time-of-flight range…

Robotics · Computer Science 2018-10-02 Patrick E. Lancaster , Joshua R. Smith , Siddhartha S. Srinivasa

Alignment with human preference is a desired property of large language models (LLMs). Currently, the main alignment approach is based on reinforcement learning from human feedback (RLHF). Despite the effectiveness of RLHF, it is intricate…

Computation and Language · Computer Science 2024-04-16 Geyang Guo , Ranchi Zhao , Tianyi Tang , Wayne Xin Zhao , Ji-Rong Wen

Dexterous manipulation requires precise geometric reasoning, yet existing visuo-tactile learning methods struggle with sub-millimeter precision tasks that are routine for traditional model-based approaches. We identify a key limitation:…

Robotics · Computer Science 2026-02-27 Jialei Huang , Yang Ye , Yuanqing Gong , Xuezhou Zhu , Yang Gao , Kaifeng Zhang