Search Results for author: Junyu Liu

Found 35 papers, 3 papers with code

Hybrid Quantum-Classical Scheduling for Accelerating Neural Network Training with Newton's Gradient Descent

1 code implementation30 Apr 2024 Pingzhi Li, Junyu Liu, Hanrui Wang, Tianlong Chen

Nevertheless, one of its major bottlenecks is matrix inversion, which is notably time-consuming in $O(N^3)$ time with weak scalability.

Feint in Multi-Player Games

no code implementations4 Mar 2024 Junyu Liu, Wangkai Jin, Xiangjun Peng

This paper introduces the first formalization, implementation and quantitative evaluation of Feint in Multi-Player Games.

Multi-agent Reinforcement Learning

A comprehensive review of Quantum Machine Learning: from NISQ to Fault Tolerance

no code implementations21 Jan 2024 Yunfei Wang, Junyu Liu

Quantum machine learning, which involves running machine learning algorithms on quantum devices, has garnered significant attention in both academic and business circles.

Learning Theory Quantum Machine Learning

Energy-Efficient Power Control for Multiple-Task Split Inference in UAVs: A Tiny Learning-Based Approach

no code implementations31 Dec 2023 Chenxi Zhao, Min Sheng, Junyu Liu, Tianshu Chu, Jiandong Li

Specifically, we replace the optimization of transmit power with that of transmission time to decrease the computational complexity of OP since we reveal that energy consumption monotonically decreases with increasing transmission time.

Dynamical phase transition in quantum neural networks with large depth

no code implementations29 Nov 2023 Bingzhi Zhang, Junyu Liu, Xiao-Chuan Wu, Liang Jiang, Quntao Zhuang

Via mapping the Hessian of the training dynamics to a Hamiltonian in the imaginary time, we reveal the nature of the phase transition to be second-order with the exponent $\nu=1$, where scale invariance and closing gap are observed at critical point.

UAV Swarm Deployment and Trajectory for 3D Area Coverage via Reinforcement Learning

no code implementations21 Sep 2023 Jia He, Ziye Jia, Chao Dong, Junyu Liu, Qihui Wu, Jingxian Liu

Unmanned aerial vehicles (UAVs) are recognized as promising technologies for area coverage due to the flexibility and adaptability.

Q-Learning

Quantum Data Center: Perspectives

no code implementations12 Sep 2023 Junyu Liu, Liang Jiang

A quantum version of data centers might be significant in the quantum era.

Beyond MD17: the reactive xxMD dataset

1 code implementation22 Aug 2023 Zihan Pengmei, Junyu Liu, Yinan Shu

We show that the xxMD dataset involves diverse geometries which represent chemical reactions.

Benchmarking

Potential Energy Advantage of Quantum Economy

no code implementations15 Aug 2023 Junyu Liu, Hansheng Jiang, Zuo-Jun Max Shen

Energy cost is increasingly crucial in the modern computing industry with the wide deployment of large-scale machine learning models and language models.

Fundamental causal bounds of quantum random access memories

no code implementations25 Jul 2023 Yunfei Wang, Yuri Alexeev, Liang Jiang, Frederic T. Chong, Junyu Liu

Quantum random access memory (QRAM), a fundamental component of many essential quantum algorithms for tasks such as linear algebra, data search, and machine learning, is often proposed to offer $\mathcal{O}(\log N)$ circuit depth for $\mathcal{O}(N)$ data size, given $N$ qubits.

Towards provably efficient quantum algorithms for large-scale machine-learning models

no code implementations6 Mar 2023 Junyu Liu, Minzhao Liu, Jin-Peng Liu, Ziyu Ye, Yunfei Wang, Yuri Alexeev, Jens Eisert, Liang Jiang

Large machine learning models are revolutionary technologies of artificial intelligence whose bottlenecks include huge computational expenses, power, and time used both in the pre-training and fine-tuning process.

Catapult Dynamics and Phase Transitions in Quadratic Nets

no code implementations18 Jan 2023 David Meltzer, Junyu Liu

To do this, we show that for a certain range of learning rates the weight norm decreases whenever the loss becomes large.

Estimating truncation effects of quantum bosonic systems using sampling algorithms

no code implementations16 Dec 2022 Masanori Hanada, Junyu Liu, Enrico Rinaldi, Masaki Tezuka

To simulate bosons on a qubit- or qudit-based quantum computer, one has to regularize the theory by truncating infinite-dimensional local Hilbert spaces to finite dimensions.

SnCQA: A hardware-efficient equivariant quantum convolutional circuit architecture

no code implementations23 Nov 2022 Han Zheng, Christopher Kang, Gokul Subramanian Ravi, Hanrui Wang, Kanav Setia, Frederic T. Chong, Junyu Liu

We propose SnCQA, a set of hardware-efficient variational circuits of equivariant quantum convolutional circuits respective to permutation symmetries and spatial lattice symmetries with the number of qubits $n$.

Benchmarking

Unifying O(3) Equivariant Neural Networks Design with Tensor-Network Formalism

no code implementations14 Nov 2022 Zimu Li, Zihan Pengmei, Han Zheng, Erik Thiede, Junyu Liu, Risi Kondor

Equivariant graph neural networks are a standard approach to such problems, with one of the most successful methods employing tensor products between various tensors that transform under the spatial group.

Tensor Networks

Quantum Power Flows: From Theory to Practice

no code implementations10 Nov 2022 Junyu Liu, Han Zheng, Masanori Hanada, Kanav Setia, Dan Wu

Climate change is becoming one of the greatest challenges to the sustainable development of modern society.

Stochastic noise can be helpful for variational quantum algorithms

no code implementations13 Oct 2022 Junyu Liu, Frederik Wilde, Antonio Anna Mele, Liang Jiang, Jens Eisert

Saddle points constitute a crucial challenge for first-order gradient descent algorithms.

Quantum Computing Methods for Supply Chain Management

no code implementations17 Sep 2022 Hansheng Jiang, Zuo-Jun Max Shen, Junyu Liu

We focus on applying quantum computing to operations management problems in industry, and in particular, supply chain management.

Management

Symmetric Pruning in Quantum Neural Networks

no code implementations30 Aug 2022 Xinbiao Wang, Junyu Liu, Tongliang Liu, Yong Luo, Yuxuan Du, DaCheng Tao

To fill this knowledge gap, here we propose the effective quantum neural tangent kernel (EQNTK) and connect this concept with over-parameterization theory to quantify the convergence of QNNs towards the global optima.

Data centers with quantum random access memory and quantum networks

no code implementations28 Jul 2022 Junyu Liu, Connor T. Hann, Liang Jiang

In this paper, we propose the Quantum Data Center (QDC), an architecture combining Quantum Random Access Memory (QRAM) and quantum networks.

Data Compression

On the Super-exponential Quantum Speedup of Equivariant Quantum Machine Learning Algorithms with SU($d$) Symmetry

no code implementations15 Jul 2022 Han Zheng, Zimu Li, Junyu Liu, Sergii Strelchuk, Risi Kondor

We introduce a framework of the equivariant convolutional algorithms which is tailored for a number of machine-learning tasks on physical systems with arbitrary SU($d$) symmetries.

BIG-bench Machine Learning Quantum Machine Learning

Laziness, Barren Plateau, and Noise in Machine Learning

no code implementations19 Jun 2022 Junyu Liu, Zexi Lin, Liang Jiang

We discuss the difference between laziness and \emph{barren plateau} in quantum machine learning created by quantum physicists in \cite{mcclean2018barren} for the flatness of the loss function landscape during gradient descent.

BIG-bench Machine Learning Quantum Machine Learning

Quantum Kerr Learning

no code implementations20 May 2022 Junyu Liu, Changchun Zhong, Matthew Otten, Anirban Chandra, Cristian L. Cortes, Chaoyang Ti, Stephen K Gray, Xu Han

Quantum machine learning is a rapidly evolving field of research that could facilitate important applications for quantum computing and also significantly impact data-driven sciences.

Quantum Machine Learning

Estimating the randomness of quantum circuit ensembles up to 50 qubits

no code implementations19 May 2022 Minzhao Liu, Junyu Liu, Yuri Alexeev, Liang Jiang

Random quantum circuits have been utilized in the contexts of quantum supremacy demonstrations, variational quantum algorithms for chemistry and machine learning, and blackhole information.

Quantum Machine Learning Tensor Networks

Geometry-Based Stochastic Probability Models for the LoS and NLoS Paths of A2G Channels under Urban Scenario

no code implementations19 May 2022 Minghui Pang, Qiuming Zhu, Cheng-Xiang Wang, Zhipeng Lin, Junyu Liu, Chongyu Lv, Zhuo Li

Path probability prediction is essential to describe the dynamic birth and death of propagation paths, and build the accurate channel model for air-to-ground (A2G) communications.

Analytic theory for the dynamics of wide quantum neural networks

no code implementations30 Mar 2022 Junyu Liu, Khadijeh Najafi, Kunal Sharma, Francesco Tacchino, Liang Jiang, Antonio Mezzacapo

We define wide quantum neural networks as parameterized quantum circuits in the limit of a large number of qubits and variational parameters.

Quantum Machine Learning

Speeding up Learning Quantum States through Group Equivariant Convolutional Quantum Ansätze

1 code implementation14 Dec 2021 Han Zheng, Zimu Li, Junyu Liu, Sergii Strelchuk, Risi Kondor

We develop a theoretical framework for $S_n$-equivariant convolutional quantum circuits with SU$(d)$-symmetry, building on and significantly generalizing Jordan's Permutational Quantum Computing (PQC) formalism based on Schur-Weyl duality connecting both SU$(d)$ and $S_n$ actions on qudits.

BIG-bench Machine Learning Quantum Machine Learning

Representation Learning via Quantum Neural Tangent Kernels

no code implementations8 Nov 2021 Junyu Liu, Francesco Tacchino, Jennifer R. Glick, Liang Jiang, Antonio Mezzacapo

We analytically solve the dynamics in the frozen limit, or lazy training regime, where variational angles change slowly and a linear perturbation is good enough.

BIG-bench Machine Learning Quantum Machine Learning +1

Towards a variational Jordan-Lee-Preskill quantum algorithm

no code implementations12 Sep 2021 Junyu Liu, Zimu Li, Han Zheng, Xiao Yuan, Jinzhao Sun

Rapid developments of quantum information technology show promising opportunities for simulating quantum field theory in near-term quantum devices.

Computational Efficiency

Toward simulating Superstring/M-theory on a quantum computer

no code implementations12 Nov 2020 Hrant Gharibyan, Masanori Hanada, Masazumi Honda, Junyu Liu

Furthermore, for certain states in the Berenstein-Maldacena-Nastase (BMN) matrix model, several supersymmetric quantum field theories dual to superstring/M-theory can be realized on a quantum device.

High Energy Physics - Theory High Energy Physics - Lattice Quantum Physics

Quantum simulation of gauge theory via orbifold lattice

no code implementations12 Nov 2020 Alexander Buser, Hrant Gharibyan, Masanori Hanada, Masazumi Honda, Junyu Liu

We propose a new framework for simulating $\text{U}(k)$ Yang-Mills theory on a universal quantum computer.

High Energy Physics - Theory High Energy Physics - Lattice Quantum Physics

RODE-Net: Learning Ordinary Differential Equations with Randomness from Data

no code implementations3 Jun 2020 Junyu Liu, Zichao Long, Ranran Wang, Jie Sun, Bin Dong

To train the RODE-Net, we first estimate the parameters of the unknown RODE using the symbolic networks \cite{long2019pde} by solving a set of deterministic inverse problems based on the measured data, and use a generative adversarial network (GAN) to estimate the true distribution of the RODE's parameters.

Generative Adversarial Network

Prediction stability as a criterion in active learning

no code implementations27 Oct 2019 Junyu Liu, Xiang Li, Jin Wang, Jiqiang Zhou, Jianxiong Shen

Recent breakthroughs made by deep learning rely heavily on large number of annotated samples.

Active Learning

A Locating Model for Pulmonary Tuberculosis Diagnosis in Radiographs

no code implementations22 Oct 2019 Jiwei Liu, Junyu Liu, Yang Liu, Rui Yang, Dongjun Lv, Zhengting Cai, Jingjing Cui

Significance: We first make full use of the feature extraction ability of CNNs in TB diagnostic field and make exploration in localization of TB, when the previous works focus on the weaker task of healthy-sick subject classification.

Position regression

PartsNet: A Unified Deep Network for Automotive Engine Precision Parts Defect Detection

no code implementations29 Oct 2018 Zhenshen Qu, Jianxiong Shen, Ruikun Li, Junyu Liu, Qiuyu Guan

Defect detection is a basic and essential task in automatic parts production, especially for automotive engine precision parts.

Defect Detection Segmentation

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