Investment is a lifetime work. Investing in stocks is a popular measure. However, investing in stocks is not easy, and losing money is not uncommon. We investigate if there is a systematic way to find buyable stocks a...
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While models in audio and speech processing are becoming deeper and more end-to-end, they as a consequence need expensive training on large data, and are often brittle. We build on a classical model of human hearing a...
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Video super-resolution (VSR) is widely used in various high-definition applications, such as HDTVs and smartphones, requiring a dedicated upscaling technique for realtime full-HD generation. To reduce on-chip buffers ...
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Cobalt titanate, CoTiO3, is a honeycomb antiferromagnet recently confirmed experimentally to host Dirac magnons, topological spin-orbit excitons, and chiral phonons. Here, we investigate a magnon gap at the zone cente...
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Cobalt titanate, CoTiO3, is a honeycomb antiferromagnet recently confirmed experimentally to host Dirac magnons, topological spin-orbit excitons, and chiral phonons. Here, we investigate a magnon gap at the zone center which calls for a refined spin Hamiltonian. We propose a microscopic model for the magnon gap and attribute it to a lattice-distortion (phonon)-induced higher-order spin interaction. Strong magnetoelastic coupling in CoTiO3 is also evident in Raman spectra, in which the magnetic order exerts a stronger influence on phonons corresponding to in-plane ionic motions than those with out-of-plane motions. We further examine the evolution of the zone-center magnons in a high magnetic field up to 18.5 T via THz absorption spectroscopy measurements. Based on this field dependence, we propose a spin Hamiltonian that not only agrees with magnon dispersion measured by inelastic neutron scattering but also includes fewer exchange constants and a realistic anisotropy term. Our work highlights the broad implications of magnetoelastic coupling in the study of topologically protected bosonic excitations.
A customer service chatbot enhanced with conversational language understanding and knowledge base is developed. Here, we explore LUIS and QnA Maker which are unified as Azure cognitive service for language. LUIS is a ...
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Price and quality level of products are two important decisions of any business. This paper provides equilibrium solutions for these decisions of two players for a cybersecurity ecosystem, including a solution provide...
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Contribution: In this work-in-progress paper we describe the process of creating and validating a conceptual assessment in the field of sedimentology for undergraduate geoscience courses. The mechanism can aid future ...
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ISBN:
(纸本)9798350351507
Contribution: In this work-in-progress paper we describe the process of creating and validating a conceptual assessment in the field of sedimentology for undergraduate geoscience courses. The mechanism can aid future geoscience educators and researchers in the process of academic assessment development aligned with learning objectives in these courses. Background: Prior literature review supports the benefits of using active learning tools in STEM (science, Technology, engineering, and Mathematics) courses. This paper is part of a larger project to develop and incorporate research-based active learning software in sedimentology and other geoscience courses to improve grade point average (GPA) and time to graduation for Hispanic students at Texas A&M University. To evaluate the novel tool, we designed and validated the conceptual assessment instrument presented in this work. Research Question: What is the process to develop and validate a conceptual assessment for sedimentology? Methodology: This paper follows quantitative analysis and the assessment triangle approach and focuses on cognition, observation, and interpretation to design and evaluate the conceptual assessment. In the cognition element of the triangle, we explain the mechanism for creating the assessment instrument using students' learning objectives. The observation element explains the mechanism of data collection and the instrument revision. The interpretation element explains the results of the validation process using item response theory and reliability measures. We collected the conceptual assessment data from 17 participants enrolled in two courses where sedimentology topics are taught. Participants were geology majors in one of the courses and engineering majors in the other. Findings: The team developed a conceptual assessment that included eight multiple-choice (MCQ) and four open-ended response questions. The results of the design process described the conceptualization of questions and their
Virtual reality has become a new option to inform the customers about product before purchasing. However, providing virtual reality may create new challenges. For instance, consumers may obtain essential information a...
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In this article, we present an innovative approach to enhance the online shoe shopping experience. The convolutional neural network (CNN) image recognition technology was used to enhance shoe classification and recomm...
In this article, we present an innovative approach to enhance the online shoe shopping experience. The convolutional neural network (CNN) image recognition technology was used to enhance shoe classification and recommendations. By training the CNN model on an extensive dataset, unique shoe features and styles were learned. Integrated into a user-friendly online platform, the system offers real-time image recognition, allowing users to snap a photo of a desired shoe for instant identification, including brand, price, and availability details. Moreover, the CNN-based recommendation engine provides personalized suggestions based on style, color, and customer preferences, enriching the shopping experience. Evaluation results confirmed the system's feasibility, and user feedback highlighted its effectiveness in simplifying the shopping process and enhancing satisfaction. This innovative system presents a significant leap in merging AI and e-commerce and shows the potential of image recognition to transform online marketplaces, benefiting consumers, offering valuable insights for retailers, and ultimately reshaping the future of online shoe shopping.
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