The processing of quantum information is defined by quantum circuits. For applications on current quantum devices, these are usually parameterized, i.e., they contain operations with variable parameters. The design of...
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ISBN:
(纸本)9798400701207
The processing of quantum information is defined by quantum circuits. For applications on current quantum devices, these are usually parameterized, i.e., they contain operations with variable parameters. The design of such quantum circuits and aggregated higher-level quantum operators is a challenging task which requires significant knowledge in quantum information theory, provided a polynomial-sized solution can be found analytically at all. Moreover, finding an accurate solution with low computational cost represents a significant trade-off, particularly for the current generation of quantum computers. To tackle these challenges, we propose a multi-objective genetic programming approach-hybridized with a numerical parameter optimizer-to automate the synthesis of parameterized quantum operators. To demonstrate the benefits of the proposed approach, it is applied to a quantum circuit of a hybrid quantum-classical algorithm, and then compared to an analytical solution as well as a non-hybrid version. The results show that, compared to the non-hybrid version, our method produces more diverse solutions and more accurate quantum operators which even reach the quality of the analytical baseline.
Collaborative filtering (CF) is the most fundamental technique in recommender systems, which reveals user preference by implicit feedback. Generally, binary cross-entropy or bayesian personalized ranking are usually e...
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ISBN:
(纸本)9783031402883;9783031402890
Collaborative filtering (CF) is the most fundamental technique in recommender systems, which reveals user preference by implicit feedback. Generally, binary cross-entropy or bayesian personalized ranking are usually employed as the loss function to optimize model parameters. Recently, the sampled softmax loss has been proposed to enhance the sampling efficiency, which adopts an in-batch sample strategy. However, it suffers from the sample bias issue, which unavoidably introduces false negative instances, resulting inaccurate representations of users' genuine interests. To address this problem, we propose a debiased contrastive loss, incorporating a bias correction probability to alleviate the sample bias. We integrate the proposed method into several matrix factorizations (MF) and graph neural network-based (GNN) recommendation models. Besides, we theoretically analyze the effectiveness of our methods in automatically mining the hard negative instances. Experimental results on three public benchmarks demonstrate that the proposed debiased contrastive loss can augment several existing MF and GNN-based CF models and outperform popular learning objectives in the recommendation. Additionally, we demonstrate that our method substantially enhances training efficiency.
In this paper, numerical simulation was carried out and the operability of the input and output devices of a biomorphic neuroprocessor, built using a logic matrix, was shown using the specialized software SPICE (Simul...
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Context driven environments are growing in popularity. Mobile applications, Internet of Things devices, autonomous vehicles, and future technologies respond to context events in their environments. This work uses a se...
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The paper is devoted to comparing the effectiveness of variable methods for training future IT specialists, based on identifying the initial level of proficiency in SQL and HTML programming languages. An experiment wa...
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ISBN:
(纸本)9783031856518;9783031856525
The paper is devoted to comparing the effectiveness of variable methods for training future IT specialists, based on identifying the initial level of proficiency in SQL and HTML programming languages. An experiment was conducted with the participation of second-year students of the Kazan State Energy University (N = 200). The experiment tested two options for completing tasks, combining experience in web programming and experience working with databases. Students were given the opportunity to begin doing their work in a known way, obtain a positive result sufficient for a positive self-assessment, and then develop their knowledge and experience in accordance with the requirements of the curriculum. The study demonstrated the effectiveness of conducting an entry survey to identify the initial level of programming languages proficiency. Changes made to the content and process of training future IT specialists based on data obtained from surveys made it possible to eliminate gaps in IT competencies.
Quantum annealing software has achieved a certain market penetration since it has demonstrated a good performance for optimization problems. The problem definitions (Hamiltonians functions to be minimized) are usually...
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ISBN:
(纸本)9781665481342
Quantum annealing software has achieved a certain market penetration since it has demonstrated a good performance for optimization problems. The problem definitions (Hamiltonians functions to be minimized) are usually built in combination with classical software that can evolve over time. Thus, it is difficult to comprehend the underlying Hamiltonian and represent it in an accurate way for maintaining such programs. Although some reverse engineering techniques have been proposed for gate-basedsoftware, there are no choices to accomplish reverse engineering in quantum annealing. This research proposes a dynamic analysis technique of D-Wave (python) programs for reversing Hamiltonians, which has been preliminarily evaluated with nine programs. The technique also represents those expressions by using the knowledge Discovery Metamodel (ISO/IEC 19506). Due to the usage of this standard, the outgoing expressions can be represented in combination with other parts of classical-quantum software systems. Thus, the main implication is that this technique contributes to the software modernization of/towards hybrid information systems.
Accurately predicting the cost is crucial for the success of complex industrial projects. There can be several sources contributing to the cost. Traditional methods for cost estimation may not provide the required acc...
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"knowledge" is a vital resource for organisation that should be gathered, safeguarded, & disseminated. It should be used to inform decisions. "Cloud-based Computing" and “knowledge Management...
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ISBN:
(数字)9798350364729
ISBN:
(纸本)9798350364736
"knowledge" is a vital resource for organisation that should be gathered, safeguarded, & disseminated. It should be used to inform decisions. "Cloud-based Computing" and “knowledge Management” solutions help organizations manage their information and boost productivity by fusing traditional organizational methods with cutting-edge technology. This study specifically looks at cloud-basedsoftware services to explore how organizations use ubiquitous computing to adopt innovative software development and delivery approaches. The study’s findings show that factors like complexity, compatibility, relative advantage, security, privacy, and trust, as well as reputation and KM practices (knowledge accessibility, storage, application, and sharing), have a significant and positive impact on whether cloud-basedsoftware services are adopted. “Coordination and communication” problems are the cornerstone of winning remote “development and innovation” practices. The conclusion also lend credence to the idea that the effects of cloud services and knowledge management practices can be attenuated by spatial (cultural) diversity.
Intelligent hardware deployment for autonomous sensing and data collection, use of various computing technologies, algorthms for response systems form the core of Internet of Things. The devices and systems allow coll...
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Blockchain technology promotes immutability, transparency, integrity, and enhanced security. Recently blockchain-based applications and associated technologies have been noticeable in various domains such as finance, ...
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