Wenjie Liu

Adaptive Broad Echo State Network for Nonstationary Time Series Forecasting

2022 · Mathematics

Time series forecasting provides a vital basis for the control and management of various systems. The time series data in the real world are usually strongly nonstationary and nonlinear, which increases the difficulty of reliable …

A Block-Ring connected Topology of Parameterized Quantum Circuits

2023 · arXiv (Cornell University)

It is essential to select efficient topology of parameterized quantum circuits (PQCs) in variational quantum algorithms (VQAs). However, there are problems in current circuits, i.e. optimization difficulties caused by too many parameters or performance is …

Rotation- and Permutation-Equivariant Quantum Graph Neural Network for 3D Graph Data

2025 · IEEE Transactions on Pattern Analysis and Machine Intelligence

Equivariant quantum graph neural networks (EQGNNs) offer a potentially powerful method to process graph data. However, existing EQGNN models only consider the permutation symmetry of graphs, and failing to fully exploit the geometric and non-geometric …

Secure and Efficient Verification Protocol for Quantum Key Distribution

2025

Quantum key distribution (QKD) is a secure communication protocol that uses quantum bits (qubits) to ensure the security of key exchange between two entities (Alice and Bob). Their shared qubits may suffer from errors due …