We propose and study a new iterative coordinate descent algorithm (QICD) for solving nonconvex penalized quantile regression in high dimension. By permitting different subsets of covariates to be relevant modeling the response variable at quantiles, provides flexible approach high-dimensional data with heterogeneity. Although its theory has been investigated recently, computation remains highly challenging when p is large due nonsmoothness loss function nonconvexity penalty function....

SUMMARY This paper presents a novel forecasting kinematic algorithm for autonomously navigating the 3D visual window of laparoscopic minimally invasive surgical robotic system (LMISRS). By application proposed technique, constant distribution area ratio micro devices can be guaranteed in window; real-time concurrency motion laparoscope and mark points instruments is realized, i.e. keep tracking movement marks automatically, so that user does not have to switch between master-slave...

This paper theoretically investigates the following empirical phenomenon: given a high-complexity network with poor generalization bounds, one can distill it into nearly identical predictions but low complexity and vastly smaller bounds. The main contribution is an analysis showing that original inherits this good bound from its distillation, assuming use of well-behaved data augmentation. presented both in abstract concrete form, latter complemented by reduction technique to handle modern...

SUMMARY In the present work, ankle rehabilitation robot (ARR) dynamic model that implements a new series of connection control strategies is introduced. The models are presented in this regard. This analyzes LuGre friction and nonlinear disturbance model. To improve ARR system’s rapidity robustness, composite 2-degree freedom (2-DOF) internal (IMC) controller presented. performance compound 2-DOF IMC simulated analyzed work. simulation shows has high following performance. For practical...

The knowledge of the pelvis kinematics plays an important role in equilibrium control during walking. previous research technique on locomotion is impractical some fields such as clinic practice. This paper illustrates a new method based treadmill and three precise displacement-sensors. 20 healthy young adults both sexes are instructed to naturally walk at different speeds. A model presented calculate medial-lateral vertical displacements any able-bodied data curves indicate that cyclical...

The Lower-limb Power Assisted Robot is a typical exoskeleton power assistance device, which worn on the user's lower extremities. It can help elderly and infirm walk independently. According to characteristics of human extremity joints, robot with four-bar knee joint whose pelvis are driven by motor-driven screw-nut body designed. Employing Denanit-Hartenberg (D-H) method, kinematics analyzed, equation was established. Based upon law gait, robot's trajectory planning accomplished. dSPACE...

SUMMARY In order to improve the training efficiency and establish a multi-person cooperative simulation system, including “virtual human,” in process of virtual reality-based astronaut training, it is necessary plan velocity at which astronauts carry target object. A planning algorithm, combining traditional six-stage acceleration/deceleration based on time-discrete model with high-order dynamic constraints, considering elastic damping torque space suit, proposed. The described algorithm...

BACKGROUND: Isokinetic muscle strength training is presently the most advanced method of training.However, existing control schemes equipment are usually limited to structure brake.OBJECTIVE: In order solve this problem, paper presents a solution an isokinetic system based on force DC servomotor.METHODS: A new fuzzy impedance nonlinear controller designed by analyzing relevant requirements motion.A series tracking comparison experiments between PI and classical studied.In addition, some...

Meal-assistance robot is a new kind of service robot. A type meal-assistance model with few DOF, low price and high performance was presented first in the paper, view that existing robots are characterized by large number being difficult to accept disabled patients hand who vulnerable groups society, especially developing countries. Furthermore, based on second Lagrange's equation, dynamics function established, mutual force between mouth spoon considered. Dynamics numeric simulation has...

We introduce a novel text-to-pose video editing method, ReimaginedAct. While existing tasks are limited to changes in attributes, backgrounds, and styles, our method aims predict open-ended human action video. Moreover, can accept not only direct instructional text prompts but also `what if' questions possible changes. ReimaginedAct comprises understanding, reasoning, modules. First, an LLM is utilized initially obtain plausible answer for the instruction or question, which then used (1)...

Spoken emotion and semantic are two components of expression. In human conversation, emotions expressed by these modalities similar in healthy individuals. However, rich evidence documents that depression might affect emotional Nevertheless, the consistency between spoken depressed patients has rarely been studied previously. present study, we investigated acoustical features text content individuals during natural conversations. It was found tended to talk about negative topics a neutral...

The growing interest in gait recognition based on surface electromyography (sEMG) signals is attributed to their capability anticipate motion characteristics during human movement. This paper focuses pattern using sEMG signals. Initially, the muscles responsible for collecting are determined distinct of gait, and data 12 different patterns collected. Subsequently, acquired undergo preprocessing feature extraction stages. Moreover, various algorithms relevant classification myoelectric...

The knowledge of human gait plays an important role in the equilibrium control during walking. study has science significance and applied value fields medical treatment, physical training, rehabilitation, man-machine engineering so on. This paper illustrates a joint measurement system based on motion image gathering angular measuring instrument. gathers recognizes markers waist, hip as well knee, while instrument measures relative angle various joints. In experiment, trajectory joints...

The research objectives are as follows: to identify techniques translate the Russian compound sentences with parataxis into Chinese and reveal factors that determine choice of appropriate construction. Scientific originality study lies in fact authors summarize ways show how equivalent is determined by structural-semantic peculiarities original text. Three types examined: a predicative clause, an attributive clause comparative clause. conducted allows concluding both simple complex can serve...

According to the motion law and structural characteristics of ankle joint research on rehabilitation training method, aiming at problems traditional mode is simple, treatment effect not obvious, period long, a kind robot structure proposed. The device mainly uses hydraulic system make height difference between front back foot plate, adopts design concept slide track determination, so that can reach reasonable range motion, meet requirements treatment. Firstly, analyzed, designed basic...

Sensor‐based gait recognition has recently been one of the most challenging task in personal identity verification. But variations sensor location would affect quality collected data, which results instability performance. To tackle with this, this paper proposes a unified discriminative Auto‐Encoder (AE) framework to directly extract features under different locations, and simplifies AE‐based at same time. Firstly, we change traditional mean square error AE into spectral angle distance keep...

In order to acquire the normal gait parameters and variation rules, fuzzy algorithm was introduced for processing experimental data. The effect of subject's height walking speed on motion amplitude pelvis chosen as an example, study 30 males completed. By analyze data rule inference chart were set up. simulation analysis implemented by toolbox MATLAB software, validation carried out. research results accord with theoretical model. It illustrates feasibility accuracy algorithm. This has...

In recent years, compressed sensing (CS) based image coding has become a hot topic in processing field. However, since the bit depth required for encoding each CS sample is too large, compression performance of this paradigm unattractive. To address issue, novel CS-based system by using gray transformation proposed. proposed system, we use to preprocess original firstly and then transformed image. Since makes probability distribution samples centralized, reduced significantly. Consequently,...

Aiming at the characteristic of medical images, this paper presents improved genetic simulated annealing algorithm with K-means clustering analysis and applies in CT image segmentation. This can be used to globally optimize k-means segmentation functions solve locality sensitiveness initial condition. It automatically adjust parameters according fitness values individuals decentralizing degree population keep variety for rapidly converging, it effectively avoid appearing precocity plunging...