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Liangliang Chen

6 accepted papers

2024

RLingua: Improving Reinforcement Learning Sample Efficiency in Robotic Manipulations With Large Language Models

RA-L 2024

Reinforcement learning (RL) has demonstrated its capability in solving various tasks but is notorious for its low sample efficiency. In this paper, we propose RLingua, a framework that can leverage the internal knowledge of large language models (LLMs) to reduce the sample complexity of RL in roboti

Cited by 31SourcecodeScholar
2022

Detect Rumors in Microblog Posts for Low-Resource Domains via Adversarial Contrastive Learning

NAACL 2022findings

Massive false rumors emerging along with breaking news or trending topics severely hinder the truth. Existing rumor detection approaches achieve promising performance on the yesterday’s news, since there is enough corpus collected from the same domain for model training. However, they are poor at de…

2021

Rumor Detection on Twitter with Claim-Guided Hierarchical Graph Attention Networks

EMNLP 2021main

Rumors are rampant in the era of social media. Conversation structures provide valuable clues to differentiate between real and fake claims. However, existing rumor detection methods are either limited to the strict relation of user responses or oversimplify the conversation structure. In this study…

2020

Task Space Motion Control for AFM-Based Nanorobot Using Optimal and Ultralimit Archimedean Spiral Local Scan

RA-L 2020

Atomic force microscopy (AFM) based nanorobotic technology provides a unique manner for delicate operations at the nanoscale in various ambient, thanks to its ultrahigh spatial resolution, outstanding environmental adaptability, and numerous measurement approaches. However, one vital challenge behin

Cited by 9SourceScholar
2016

Nanorobot enabled in situ sensing molecular interactions for drug discovery

IROS 2016poster

Nanorobot has the potential to automate the manipulation and observation processes at molecular scale. Current drug discovery process is labor and cost intensive. Thus, a strong demand exists to automate this process. Here, we developed an Atomic Force Microscopy (AFM) based nanorobot for in situ se…

Cited by 2SourceScholar
2015

Compensating asymmetric hysteresis for nanorobot motion control

ICRA 2015poster

Atomic force microscopy (AFM) is a powerful measurement instrument, which has been widely implemented in various fields. To enhance the maneuverability, an AFM can be modified and its cantilever can be controlled as a robotic end-effector. To precisely control the nanorobots, their scanners inherent…

Cited by 25SourceScholar