Search Results for author: Haotian Xu

Found 10 papers, 3 papers with code

Crossroads, Buildings and Neighborhoods: A Dataset for Fine-grained Location Recognition

1 code implementation NAACL 2022 Pei Chen, Haotian Xu, Cheng Zhang, Ruihong Huang

General domain Named Entity Recognition (NER) datasets like CoNLL-2003 mostly annotate coarse-grained location entities such as a country or a city.

named-entity-recognition Named Entity Recognition +1

No Train Still Gain. Unleash Mathematical Reasoning of Large Language Models with Monte Carlo Tree Search Guided by Energy Function

no code implementations1 Sep 2023 Haotian Xu

Large language models (LLMs) demonstrate impressive language understanding and contextual learning abilities, making them suitable for natural language processing (NLP) tasks and complex mathematical reasoning.

GSM8K Mathematical Reasoning

CValues: Measuring the Values of Chinese Large Language Models from Safety to Responsibility

1 code implementation19 Jul 2023 Guohai Xu, Jiayi Liu, Ming Yan, Haotian Xu, Jinghui Si, Zhuoran Zhou, Peng Yi, Xing Gao, Jitao Sang, Rong Zhang, Ji Zhang, Chao Peng, Fei Huang, Jingren Zhou

In this paper, we present CValues, the first Chinese human values evaluation benchmark to measure the alignment ability of LLMs in terms of both safety and responsibility criteria.

Efficient Exploration Using Extra Safety Budget in Constrained Policy Optimization

no code implementations28 Feb 2023 Haotian Xu, Shengjie Wang, Zhaolei Wang, Yunzhe Zhang, Qing Zhuo, Yang Gao, Tao Zhang

In the early stage, our method loosens the practical constraints of unsafe transitions (adding extra safety budget) with the aid of a new metric we propose.

Efficient Exploration Reinforcement Learning (RL)

A RL-based Policy Optimization Method Guided by Adaptive Stability Certification

no code implementations2 Jan 2023 Shengjie Wang, Fengbo Lan, Xiang Zheng, Yuxue Cao, Oluwatosin Oseni, Haotian Xu, Yang Gao, Tao Zhang

In contrast to the control-theoretic methods, the lack of stability guarantee remains a significant problem for model-free reinforcement learning (RL) methods.

Reinforcement Learning (RL)

VizInspect Pro -- Automated Optical Inspection (AOI) solution

no code implementations26 May 2022 Faraz Waseem, Sanjit Menon, Haotian Xu, Debashis Mondal

Traditional vision based Automated Optical Inspection (referred to as AOI in paper) systems present multiple challenges in factory settings including inability to scale across multiple product lines, requirement of vendor programming expertise, little tolerance to variations and lack of cloud connectivity for aggregated insights.


Directionally Convolutional Networks for 3D Shape Segmentation

no code implementations ICCV 2017 Haotian Xu, Ming Dong, Zichun Zhong

Previous approaches on 3D shape segmentation mostly rely on heuristic processing and hand-tuned geometric descriptors.

3D Shape Representation Representation Learning

Joint Bayesian Gaussian discriminant analysis for speaker verification

no code implementations13 Dec 2016 Yiyan Wang, Haotian Xu, Zhijian Ou

State-of-the-art i-vector based speaker verification relies on variants of Probabilistic Linear Discriminant Analysis (PLDA) for discriminant analysis.

Face Verification Speaker Verification

Joint Stochastic Approximation learning of Helmholtz Machines

no code implementations20 Mar 2016 Haotian Xu, Zhijian Ou

Though with progress, model learning and performing posterior inference still remains a common challenge for using deep generative models, especially for handling discrete hidden variables.

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