Search Results for author: Wanwei Liu

Found 8 papers, 3 papers with code

UR4NNV: Neural Network Verification, Under-approximation Reachability Works!

no code implementations23 Jan 2024 Zhen Liang, Taoran Wu, Ran Zhao, Bai Xue, Ji Wang, Wenjing Yang, Shaojun Deng, Wanwei Liu

However, these strategies face challenges in addressing the "unknown dilemma" concerning whether the exact output region or the introduced approximation error violates the property in question.

An Automata-Theoretic Approach to Synthesizing Binarized Neural Networks

no code implementations29 Jul 2023 Ye Tao, Wanwei Liu, Fu Song, Zhen Liang, Ji Wang, Hongxu Zhu

Quantized neural networks (QNNs) have been developed, with binarized neural networks (BNNs) restricted to binary values as a special case.

Fairness Quantization

Verifying Safety of Neural Networks from Topological Perspectives

1 code implementation27 Jun 2023 Zhen Liang, Dejin Ren, Bai Xue, Ji Wang, Wenjing Yang, Wanwei Liu

Moreover, for NNs that do not feature these properties with respect to the input set, we explore subsets of the input set for establishing the local homeomorphism property and then abandon these subsets for reachability computations.

Autonomous Vehicles

Repairing Deep Neural Networks Based on Behavior Imitation

1 code implementation5 May 2023 Zhen Liang, Taoran Wu, Changyuan Zhao, Wanwei Liu, Bai Xue, Wenjing Yang, Ji Wang

For the fine-tuning repair process, BIRDNN analyzes the behavior differences of neurons on positive and negative samples to identify the most responsible neurons for the erroneous behaviors.

Credit Assignment for Trained Neural Networks Based on Koopman Operator Theory

no code implementations2 Dec 2022 Zhen Liang, Changyuan Zhao, Wanwei Liu, Bai Xue, Wenjing Yang, Zhengbin Pang

Based on Koopman operator theory, this paper presents an alternative perspective of linear dynamics on dealing with the credit assignment problem for trained neural networks.

On Sufficient and Necessary Conditions in Bounded CTL: A Forgetting Approach

no code implementations13 Mar 2020 Renyan Feng, Erman Acar, Stefan Schlobach, Yisong Wang, Wanwei Liu

To address such a scenario in a principled way, we introduce a forgetting-based approach in CTL and show that it can be used to compute SNC and WSC of a property under a given model and over a given signature.

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