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Talks - Naveed Mahmud: Hybrid Quantum-Classical Machine Learning using Qiskit
Explore how quantum computing enhances machine learning through Qiskit, combining classical & quantum approaches for sentiment analysis. See real implementation examples & results.
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Quantum-classical machine learning combines quantum computing capabilities with traditional ML approaches to potentially speed up specific machine learning tasks
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Core quantum computing concepts essential for hybrid ML include:
- Qubits (quantum bits) that can exist in superposition states
- Entanglement between qubits creating strong correlations
- Quantum circuits with gates for manipulating qubit states
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The framework combines:
- Classical pre-processing and dimension reduction (PCA, wavelet transform)
- Quantum feature mapping to encode classical data into quantum states
- Quantum classification using QSVC (Quantum Support Vector Classifier) or VQC (Variational Quantum Classifier)
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Implementation details:
- Uses Qiskit (IBM’s open-source quantum computing SDK)
- Requires parameterized quantum circuits (ANSATZ)
- Employs quantum kernels for classification tasks
- Can work with both quantum simulators and real quantum hardware
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Key findings from experiments:
- Quantum models achieved comparable accuracy (~70-72%) to classical methods
- VQC showed shortest training times among tested approaches
- Hard wavelet transform combined with quantum methods showed promise for large datasets
- Performance maintained even with reduced feature dimensions
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Applications focused on sentiment analysis using:
- Twitter dataset (English)
- Bengali news portal dataset
- Text preprocessing and word embedding before quantum processing
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Current limitations include:
- Most implementations run on simulators rather than real quantum hardware
- API transitions as quantum frameworks evolve
- Different quantum computer architectures may affect algorithm performance