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Luo D, Liang Y, Yang Y, Wang X. Hybrid parameters for fluid identification using an enhanced quantum neural network in a tight reservoir. Sci Rep 2024; 14:1064. [PMID: 38212380 PMCID: PMC10784518 DOI: 10.1038/s41598-023-50455-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 12/20/2023] [Indexed: 01/13/2024] Open
Abstract
This paper proposes a fluid classifier for a tight reservoir using a quantum neural network (QNN). It is difficult to identify the fluid in tight reservoirs, and the manual interpretation of logging data, which is an important means to identify the fluid properties, has the disadvantages of a low recognition rate and non-intelligence, and an intelligent algorithm can better identify the fluid. For tight reservoirs, the logging response characteristics of different fluid properties and the sensitivity and relevance of well log parameter and rock physics parameters to fluid identification are analyzed, and different sets of input parameters for fluid identification are constructed. On the basis of quantum neural networks, a new method for combining sample quantum state descriptions, sensitivity analysis of input parameters, and wavelet activation functions for optimization is proposed. The results of identifying the dry layer, gas layer, and gas-water co-layer in the tight reservoir in the Sichuan Basin of China show that different input parameters and activation functions affect recognition performance. The proposed quantum neural network based on hybrid parameters and a wavelet activation function has higher fluid identification accuracy than the original quantum neural network model, indicating that this method is effective and warrants promotion and application.
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Affiliation(s)
- Dejiang Luo
- College of Mathematics and Physics, Chengdu University of Technology, Chengdu, 610059, China.
- Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Chengdu, 610059, China.
| | - Yuan Liang
- Geomathematics Key Laboratory of Sichuan Province, Chengdu University of Technology, Chengdu, 610059, China
| | - Yuanjun Yang
- College of Mathematics and Physics, Chengdu University of Technology, Chengdu, 610059, China
| | - Xingyue Wang
- College of Mathematics and Physics, Chengdu University of Technology, Chengdu, 610059, China
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Kao PY, Yang YC, Chiang WY, Hsiao JY, Cao Y, Aliper A, Ren F, Aspuru-Guzik A, Zhavoronkov A, Hsieh MH, Lin YC. Exploring the Advantages of Quantum Generative Adversarial Networks in Generative Chemistry. J Chem Inf Model 2023. [PMID: 37171372 DOI: 10.1021/acs.jcim.3c00562] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
De novo drug design with desired biological activities is crucial for developing novel therapeutics for patients. The drug development process is time- and resource-consuming, and it has a low probability of success. Recent advances in machine learning and deep learning technology have reduced the time and cost of the discovery process and therefore, improved pharmaceutical research and development. In this paper, we explore the combination of two rapidly developing fields with lead candidate discovery in the drug development process. First, artificial intelligence has already been demonstrated to successfully accelerate conventional drug design approaches. Second, quantum computing has demonstrated promising potential in different applications, such as quantum chemistry, combinatorial optimizations, and machine learning. This article explores hybrid quantum-classical generative adversarial networks (GAN) for small molecule discovery. We substituted each element of GAN with a variational quantum circuit (VQC) and demonstrated the quantum advantages in the small drug discovery. Utilizing a VQC in the noise generator of a GAN to generate small molecules achieves better physicochemical properties and performance in the goal-directed benchmark than the classical counterpart. Moreover, we demonstrate the potential of a VQC with only tens of learnable parameters in the generator of GAN to generate small molecules. We also demonstrate the quantum advantage of a VQC in the discriminator of GAN. In this hybrid model, the number of learnable parameters is significantly less than the classical ones, and it can still generate valid molecules. The hybrid model with only tens of training parameters in the quantum discriminator outperforms the MLP-based one in terms of both generated molecule properties and the achieved KL divergence. However, the hybrid quantum-classical GANs still face challenges in generating unique and valid molecules compared to their classical counterparts.
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Affiliation(s)
- Po-Yu Kao
- Insilico Medicine Taiwan Ltd., Taipei 110208, Taiwan
| | - Ya-Chu Yang
- Insilico Medicine Taiwan Ltd., Taipei 110208, Taiwan
| | - Wei-Yin Chiang
- Hon Hai (Foxconn) Research Institute, Taipei 114699, Taiwan
| | - Jen-Yueh Hsiao
- Hon Hai (Foxconn) Research Institute, Taipei 114699, Taiwan
| | - Yudong Cao
- Zapata Computing, Inc., Boston, Massachusetts 02110, United States
| | - Alex Aliper
- Insilico Medicine AI Limited, Masdar City, Abu Dhabi 145748, UAE
| | - Feng Ren
- Insilico Medicine Shanghai Ltd., Shanghai 201203, China
| | - Alán Aspuru-Guzik
- Department of Chemistry, University of Toronto, Toronto, ON M5S 3H6, Canada
- Department of Computer Science, University of Toronto, Toronto, ON M5S 2E4, Canada
- Vector Institute for Artificial Intelligence, Toronto, ON M5S 1M1, Canada
- Lebovic Fellow, Canadian Institute for Advanced Research, Toronto, ON M5S 1M1, Canada
| | | | - Min-Hsiu Hsieh
- Hon Hai (Foxconn) Research Institute, Taipei 114699, Taiwan
| | - Yen-Chu Lin
- Insilico Medicine Taiwan Ltd., Taipei 110208, Taiwan
- Department of Pharmacy, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
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de Carvalho JH, de Souza LS, de Paula Neto FM, Ferreira TA. On Applying the Lackadaisical Quantum Walk Algorithm to Search for Multiple Solutions on Grids. Inf Sci (N Y) 2022. [DOI: 10.1016/j.ins.2022.11.142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Bas E. Robust fuzzy regression functions approaches. Inf Sci (N Y) 2022. [DOI: 10.1016/j.ins.2022.09.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Liu Y, Lu X, Peng W, Li C, Wang H. Compression and regularized optimization of modules stacked residual deep fuzzy system with application to time series prediction. Inf Sci (N Y) 2022. [DOI: 10.1016/j.ins.2022.06.088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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