Search Results for author: Lantao Liu

Found 20 papers, 3 papers with code

PlanarNeRF: Online Learning of Planar Primitives with Neural Radiance Fields

no code implementations30 Dec 2023 Zheng Chen, Qingan Yan, Huangying Zhan, Changjiang Cai, Xiangyu Xu, Yuzhong Huang, Weihan Wang, Ziyue Feng, Lantao Liu, Yi Xu

Through extensive experiments, we demonstrate the effectiveness of PlanarNeRF in various scenarios and remarkable improvement over existing works.

3D Plane Detection

GP-guided MPPI for Efficient Navigation in Complex Unknown Cluttered Environments

1 code implementation8 Jul 2023 Ihab S. Mohamed, Mahmoud Ali, Lantao Liu

This study presents the GP-MPPI, an online learning-based control strategy that integrates MPPI with a local perception model based on Sparse Gaussian Process (SGP).

Autonomous Navigation Collision Avoidance

Pseudo-Trilateral Adversarial Training for Domain Adaptive Traversability Prediction

no code implementations26 Jun 2023 Zheng Chen, Durgakant Pushp, Jason M. Gregory, Lantao Liu

We prove that our CALI model -- a pseudo-trilateral game structure is advantageous over existing bilateral game structures.

Autonomous Navigation Data Augmentation +1

IDA: Informed Domain Adaptive Semantic Segmentation

no code implementations5 Mar 2023 Zheng Chen, Zhengming Ding, Jason M. Gregory, Lantao Liu

To improve the UDA-SS performance, we propose an Informed Domain Adaptation (IDA) model, a self-training framework that mixes the data based on class-level segmentation performance, which aims to emphasize small-region semantics during mixup.

Data Augmentation Domain Adaptation +2

SePaint: Semantic Map Inpainting via Multinomial Diffusion

no code implementations5 Mar 2023 Zheng Chen, Deepak Duggirala, David Crandall, Lei Jiang, Lantao Liu

Prediction beyond partial observations is crucial for robots to navigate in unknown environments because it can provide extra information regarding the surroundings beyond the current sensing range or resolution.

Navigate

Decision-Making Among Bounded Rational Agents

no code implementations17 Oct 2022 Junhong Xu, Durgakant Pushp, Kai Yin, Lantao Liu

Using both simulated and real-world experiments in multi-robot navigation tasks, we demonstrate that the resulting framework allows the robots to reason about different levels of rational behaviors of other agents and compute a reasonable strategy under its computational constraint.

Decision Making Robot Navigation

Artificial Neural Network-Based Voltage Control of DC/DC Converter for DC Microgrid Applications

no code implementations5 Nov 2021 Hussain Sarwar Khan, Ihab S. Mohamed, Kimmo Kauhaniemi, Lantao Liu

Due to the advantages of the DC distribution system such as easy integration of energy storage and less system loss, DC MG attracts significant attention nowadays.

Model Predictive Control

Online Planning in Uncertain and Dynamic Environment in the Presence of Multiple Mobile Vehicles

no code implementations8 Sep 2020 Junhong Xu, Kai Yin, Lantao Liu

We first predict the future state distributions of other vehicles to account for their uncertain behaviors affected by the time-varying disturbances.

Autonomous Navigation

Kernel Taylor-Based Value Function Approximation for Continuous-State Markov Decision Processes

no code implementations3 Jun 2020 Junhong Xu, Kai Yin, Lantao Liu

We propose a principled kernel-based policy iteration algorithm to solve the continuous-state Markov Decision Processes (MDPs).

Reachable Space Characterization of Markov Decision Processes with Time Variability

no code implementations22 May 2019 Junhong Xu, Kai Yin, Lantao Liu

We propose a solution to a time-varying variant of Markov Decision Processes which can be used to address decision-theoretic planning problems for autonomous systems operating in unstructured outdoor environments.

Creating Navigable Space from Sparse Noisy Map Points

1 code implementation4 Mar 2019 Zheng Chen, Lantao Liu

We present a framework for creating navigable space from sparse and noisy map points generated by sparse visual SLAM methods.

Robotics

AutoQ: Automated Kernel-Wise Neural Network Quantization

no code implementations ICLR 2020 Qian Lou, Feng Guo, Lantao Liu, Minje Kim, Lei Jiang

Recent network quantization techniques quantize each weight kernel in a convolutional layer independently for higher inference accuracy, since the weight kernels in a layer exhibit different variances and hence have different amounts of redundancy.

AutoML Quantization

Accelerating Goal-Directed Reinforcement Learning by Model Characterization

no code implementations4 Jan 2019 Shoubhik Debnath, Gaurav Sukhatme, Lantao Liu

Then, we leverage this approximate model along with a notion of reachability using Mean First Passage Times to perform Model-Based reinforcement learning.

Model-based Reinforcement Learning Q-Learning +2

Reachability and Differential based Heuristics for Solving Markov Decision Processes

no code implementations3 Jan 2019 Shoubhik Debnath, Lantao Liu, Gaurav Sukhatme

The solution convergence of Markov Decision Processes (MDPs) can be accelerated by prioritized sweeping of states ranked by their potential impacts to other states.

A Spatio-Temporal Representation for the Orienteering Problem with Time-Varying Profits

no code implementations24 Nov 2016 Zhibei Ma, Kai Yin, Lantao Liu, Gaurav S. Sukhatme

Different from most existing works where the profits are assumed to be static, in this work we investigate a variant that has arbitrary time-dependent profits.

Informative Planning and Online Learning with Sparse Gaussian Processes

no code implementations24 Sep 2016 Kai-Chieh Ma, Lantao Liu, Gaurav S. Sukhatme

A big challenge in environmental monitoring is the spatiotemporal variation of the phenomena to be observed.

Gaussian Processes

A Solution to Time-Varying Markov Decision Processes

no code implementations3 May 2016 Lantao Liu, Gaurav S. Sukhatme

We consider a decision-making problem where the environment varies both in space and time.

Decision Making

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