The flipped learning system is a method of teaching and a type of blended learning that makes an inverse of the traditional learning environment in classroom setting. Existing flipped learning systems do not properly ...
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In the current era of Internet and e-commerce, the research and application of product recommendation system in online mall has become an important field. With the rapid development of big data technology and the accu...
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ISBN:
(纸本)9798350306378
In the current era of Internet and e-commerce, the research and application of product recommendation system in online mall has become an important field. With the rapid development of big data technology and the accumulation of user behavior data, the product recommendation system of online mall has also become the core of the recommendation system. At present, a variety of recommendation algorithms, including collaborative filtering, content-based recommendation and deep learning, have been widely studied and applied. Online mall product recommendation needs to have real-time, can quickly respond to user interaction and changes in commodity inventory. Therefore, the recommendation system needs to have efficient algorithm and technology, as well as reasonable system architecture to support real-time recommendation service. However, in the past, the product recommendation system in the online mall was often simple and limited. Simple methods such as popularity-based, content-based and collaborative filtering are mainly used for recommendation, but there are some problems such as insufficient personalization and inaccurate characterization of user characteristics. Traditional recommendation systems tend to recommend products to users that they already like, but this can lead to problems of information filtering and user interest limitation. In addition, the traditional recommendation method is still based on the similarity of product content to recommend products with similar characteristics to users through the analysis of product text description, label and other information. However, this traditional approach still has its limitations in the face of complex product classification systems and detailed characterization of user preferences. Therefore, by aggregating the feature information from the neighbors of the central node in the graph and combining the aggregated information with the current representation of the central node, this paper achieves the purpose of
Automobile insurance fraud causes huge economic losses to insurance companies, detection technology has become an urgent research topic. However, feature selection manually is prone to subjective judgment, which resul...
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The extensive application of smart contract technology in the blockchain domain has positioned it as a key component of the digital economy. However, as the application scope of smart contracts expands, security issue...
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software product-line engineering is concerned with developing a set of similar, yet customized, software systems that share a common codebase. To develop such a variant-rich system, various development processes, tec...
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An accelerator-based facility, such as an FEL injector, has stringent requirements on the quality of electron beam, and the electron beam is directly determined by beam injector, which is generally a source to provide...
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An accelerator-based facility, such as an FEL injector, has stringent requirements on the quality of electron beam, and the electron beam is directly determined by beam injector, which is generally a source to provide driven beams with the energy of several MeVs. Since such space-charge dominated relativistic beams are sensitive and easy to be deteriorated during transportation, it is necessary to carry out online monitoring of beam quality under commissioning, so as to achieve accurate measurement of beam parameters such as beam spot size, beam emittance and beam energy spread, and beam current. The whole measuring facility is composed of magnetic components such as analysis magnet and quadrupole magnet. It is necessary to control and monitor the magnet current, and then display the data uniformly to the operating interface and feed back to the user through different control and measuring devices in the system. This paper introduces the basic principle of beam measuring device and the layout design of measuring system. Based on EPICS system and LabVIEW software, a distributed three-layer architecture control and measuring system is developed, which can realize feedback control, remote monitoring and signal acquisition. The whole system is stable and reliable in operation, convenient in use, high in beam parameter accuracy and accurate in calculation, which improves the efficiency of online monitoring.
This study performs a bibliometric mapping analysis of the competency framework in higher education research utilizing the Scopus database using the Search, Appraisal, Synthesis, and Analysis (SALSA) technique. Our st...
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Unsupervised cross-domain adaptation is a challenging task for person re-identification due to the unavailability of target domain labels. Among existing methods, pseudo-Iabels-based methods have considerable performa...
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The study involved embedding a three-dimensional (3D) computed tomography (CT) model into a finite element simulation. The idea is to simulate the state of decay caused by the decayed tooth by preparing a model that r...
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With the advancement of software-Defined Networking (SDN) technology, network programmability and flexibility have been significantly enhanced. However, effectively integrating traditional network systems with emergin...
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