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Li-Chen Fu

15 accepted papers

2024

Empathetic Response Generation System: Enhancing Photo Reminiscence Chatbot with Emotional Context Analysis

IROS 2024poster

Dementia affects 50 million people worldwide, underscoring the urgent need for effective interventions to enhance their well-being. While reminiscence intervention shows promise, its implementation is hindered by limited human resources, making machine-aided systems a viable automated solution for s…

Cited by 0SourceScholar
2022

Contrast-Enhanced Semi-supervised Text Classification with Few Labels

AAAI 2022technical

Traditional text classification requires thousands of annotated data or an additional Neural Machine Translation (NMT) system, which are expensive to obtain in real applications. This paper presents a Contrast-Enhanced Semi-supervised Text Classification (CEST) framework under label-limited settings…

Cited by 17SourcePDFScholar
2020

Velocity Field based Active-Assistive Control for Upper Limb Rehabilitation Exoskeleton Robot

ICRA 2020poster

There are limitations of conventional active-assistive control for upper limb rehabilitation exoskeleton robot, such as 1). prior time-dependent trajectories are generally required, 2). task-based rehabilitation exercise involving multi-joint motion is hard to implement, and 3). assistive mechanism…

Cited by 8SourceScholar
2019

Deep Learning based Motion Prediction for Exoskeleton Robot Control in Upper Limb Rehabilitation

ICRA 2019poster

The synchronization of the movement between exoskeleton robot and human arm is crucial for Robot-assisted training (RAT) in upper limb rehabilitation. In this paper, we propose a deep learning based motion prediction model which is applied to our recently developed 8 degrees-of-freedom (DoFs) upper…

Cited by 83SourceScholar
2019

Multi-Layer Environmental Affordance Map for Robust Indoor Localization, Event Detection and Social Friendly Navigation

IROS 2019poster

In this paper, we propose a novel system architecture called multi-layer environmental affordance map for social and service companion robots. Based on this architecture, robots can organize the perception and inference information efficiently and generate social friendly navigation strategies. In o…

Cited by 10SourceScholar
2019

ResFlow: Multi-tasking of Sequentially Pooling Spatiotemporal Features for Action Recognition and Optical Flow Estimation

IROS 2019poster

Since deep-learning-based method has been widely-used and is capable of generating generic model, most existing methods about action recognition use either two-stream structure, considering spatial and temporal features separately, or C3D, costing lots of prices in memory and time. We aim to design…

Cited by 4SourceScholar
2018

Composite Reinforcement Learning for Social Robot Navigation

IROS 2018poster

For a service robot, it is not adequate to let its navigational movement be based only on a single metric, such as minimum distance path. In the environment where the robot and humans are coexisting, the robot should always perform social navigation whenever it is moving. However, to perform social…

Cited by 29SourceScholar
2017

A study on the social acceptance of a robot in a multi-human interaction using an F-formation based motion model

IROS 2017poster

As robots participate in human's daily activities more and more frequently, mobility performance has become one of the main factors determining how robots will share an environment with humans harmoniously in the near future. Among several different kinds of mobile platforms, using omnidirectional c…

Cited by 11SourceScholar
2017

Learning a deep network with spherical part model for 3D hand pose estimation

ICRA 2017poster

3D hand pose estimation is a hot research topic in recent years. It's been widely used in many advanced applications for virtual reality and human-computer interaction, since it provides a natural interface for communication between human and cyberspace. Despite the fast development of this field, i…

Cited by 36SourceScholar
2017

Partially transferred convolution neural network with cross-layer inheriting for posture recognition from top-view depth camera

IROS 2017poster

This paper proposes a new method for human posture recognition from top-view depth maps on small training datasets. There are two strategies developed to leverage the capability of convolution neural network (CNN) in mining the fundamental and generic features for recognition. First, the early layer…

Cited by 5SourceScholar
2016

Active control with force sensor and shoulder circumduction implemented on exoskeleton robot NTUH-II

IROS 2016poster

Many neurological or orthopedic disorders may cause motor impairments of shoulder. Patients require intensive training in order to recover from those impairments. However, the intensive training will lead to growing demand for strenuous work. Robot-aided therapy is able to alleviate the therapist's…

Cited by 9SourceScholar
2016

Daily activity recognition using the informative features from skeletal and depth data

ICRA 2016

In this paper, we present an efficient framework for human activity recognition in daily environment. We use depth information mainly for privacy protection, and then focus on the motion analysis of informative body parts, since most activities are much associated with these particular parts, e.g.,

Cited by 8SourceScholar
2015

Depth image based gait tracking and analysis via robotic walker

ICRA 2015poster

In this paper, we propose a gait tracking and analysis method using a depth image sensor installed on robotic walker. Nowadays, robotic walker not only can assist elders who have suffered deteriorating mobility but also help to provide rehabilitating function to people who have crippled walking abil…

Cited by 12SourceScholar
2015

Planning on searching occluded target object with a mobile robot manipulator

ICRA 2015poster

Object search is a fundamental ability for a service robot to provide higher level services. We focus on object search in an environment with limited free space to place objects and constrained viewpoints to observe the environment, such as a shelf or a cupboard. We propose an object search planner…

Cited by 30SourceScholar