Search Results for author: Zichuan Liu

Found 14 papers, 4 papers with code

Protecting Your LLMs with Information Bottleneck

1 code implementation22 Apr 2024 Zichuan Liu, Zefan Wang, Linjie Xu, Jinyu Wang, Lei Song, Tianchun Wang, Chunlin Chen, Wei Cheng, Jiang Bian

The advent of large language models (LLMs) has revolutionized the field of natural language processing, yet they might be attacked to produce harmful content.

Explaining Time Series via Contrastive and Locally Sparse Perturbations

1 code implementation16 Jan 2024 Zichuan Liu, Yingying Zhang, Tianchun Wang, Zefan Wang, Dongsheng Luo, Mengnan Du, Min Wu, Yi Wang, Chunlin Chen, Lunting Fan, Qingsong Wen

Explaining multivariate time series is a compound challenge, as it requires identifying important locations in the time series and matching complex temporal patterns.

Contrastive Learning counterfactual +1

Boosting Value Decomposition via Unit-Wise Attentive State Representation for Cooperative Multi-Agent Reinforcement Learning

no code implementations12 May 2023 Qingpeng Zhao, Yuanyang Zhu, Zichuan Liu, Zhi Wang, Chunlin Chen

In cooperative multi-agent reinforcement learning (MARL), the environmental stochasticity and uncertainties will increase exponentially when the number of agents increases, which puts hard pressure on how to come up with a compact latent representation from partial observation for boosting value decomposition.

Multi-agent Reinforcement Learning Starcraft +1

MIXRTs: Toward Interpretable Multi-Agent Reinforcement Learning via Mixing Recurrent Soft Decision Trees

no code implementations15 Sep 2022 Zichuan Liu, Yuanyang Zhu, Zhi Wang, Yang Gao, Chunlin Chen

While achieving tremendous success in various fields, existing multi-agent reinforcement learning (MARL) with a black-box neural network architecture makes decisions in an opaque manner that hinders humans from understanding the learned knowledge and how input observations influence decisions.

Multi-agent Reinforcement Learning reinforcement-learning +3

Multi View Spatial-Temporal Model for Travel Time Estimation

1 code implementation15 Sep 2021 Zichuan Liu, Zhaoyang Wu, Meng Wang, Rui Zhang

Specifically, we use graph2vec to model the spatial view, dual-channel temporal module to model the trajectory view, and structural embedding to model traffic semantics.

Travel Time Estimation

Spatial-temporal Conv-sequence Learning with Accident Encoding for Traffic Flow Prediction

no code implementations21 May 2021 Zichuan Liu, Rui Zhang, Chen Wang, Zhu Xiao, Hongbo Jiang

In an intelligent transportation system, the key problem of traffic forecasting is how to extract periodic temporal dependencies and complex spatial correlations.

Progressive Self-Guided Loss for Salient Object Detection

1 code implementation7 Jan 2021 Sheng Yang, Weisi Lin, Guosheng Lin, Qiuping Jiang, Zichuan Liu

We present a simple yet effective progressive self-guided loss function to facilitate deep learning-based salient object detection (SOD) in images.

Object object-detection +2

Correlation Propagation Networks for Scene Text Detection

no code implementations30 Sep 2018 Zichuan Liu, Guosheng Lin, Wang Ling Goh, Fayao Liu, Chunhua Shen, Xiaokang Yang

In this work, we propose a novel hybrid method for scene text detection namely Correlation Propagation Network (CPN).

Scene Text Detection Text Detection

Learning Markov Clustering Networks for Scene Text Detection

no code implementations CVPR 2018 Zichuan Liu, Guosheng Lin, Sheng Yang, Jiashi Feng, Weisi Lin, Wang Ling Goh

MCN predicts instance-level bounding boxes by firstly converting an image into a Stochastic Flow Graph (SFG) and then performing Markov Clustering on this graph.

Clustering Scene Text Detection +1

A GPU-Outperforming FPGA Accelerator Architecture for Binary Convolutional Neural Networks

no code implementations20 Feb 2017 Yixing Li, Zichuan Liu, Kai Xu, Hao Yu, Fengbo Ren

For processing static data in large batch sizes, the proposed solution is on a par with a Titan X GPU in terms of throughput while delivering 9. 5x higher energy efficiency.

A Binary Convolutional Encoder-decoder Network for Real-time Natural Scene Text Processing

no code implementations12 Dec 2016 Zichuan Liu, Yixing Li, Fengbo Ren, Hao Yu

In this paper, we develop a binary convolutional encoder-decoder network (B-CEDNet) for natural scene text processing (NSTP).

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