• RFM generates multiple feature subsets by random feature mapping for stabilizing.
• RFM enhances classification effect by fusing results of multiple feature subsets.
• RFM assigns optimal weights to different weak classifiers by ...

The feature mapping method can improve data separability, enhance data representation ability, and reduce data processing complexity. However, on the one hand, the existing feature mapping methods have difficulty processing datasets of different ...

Traditional economic theory revolves around information asymmetry, where some possess more knowledge than others. However, the digital age is upending this paradigm. This research proposes a groundbreaking shift: a transition from an Asymmetric ...

The local nonglobal minimizer of the trust-region subproblem, if it exists, is shown to have the second smallest objective function value among all KKT points. This new property is extended to the p-regularized subproblem. As a corollary, we show ...

• This study divides the service recovery types into chatbot self-recovery and human-involved recovery.

The application of artificial intelligence is considered essential to adapt to a new cycle of industrial transformation and technological advancements in many fields and industries. The extensive use of artificial intelligence ...

We extend the Calabi-Polyak theorem on the convexity of joint numerical range from three to any number of matrices on condition that each of them is a linear combination of three matrices having a positive definite linear combination. Our new ...

Xiāngdāng (相当) can modify nominal component more freely and express positive meanings such as ‘very large/good/outstanding/excellent’. The positive meanings of xiāngdāng emerged under the joint action of multiple factors. The inherent quantitative ...

In order to alleviate the impact of the old bridge by the environment and its own life and the problem of increasing maintenance cost, the intelligent building integrated evaluation system based on BIM technology is proposed. Firstly, based on BIM ...

In this paper, the concepts of n-dimensional vectors of (1-dimensional) fuzzy numbers on quasi-finite set of (1-dimensional) real number space and n-dimensional fuzzy numbers on quasi-finite set of n-dimensional real number space are put forward, and a ...

This paper focuses on designing a unified approach for computing the projection onto the intersection of a one-norm ball or sphere and a two-norm ball or sphere. We show that the solutions of these problems can all be determined by the root of the ...

Web-based enterprises have increasingly begun to build their own virtual brand community on the Cloud. How to encourage Web users to generate Web content in the Web community continuously and permanently has become the focal point. However, few ...

The formation path of customer engagement in a virtual brand community (VBC) with customer engagement, which explores the customers' non-transactional behaviours, has become increasingly popular in the marketing field. In this study, we introduced an ...

This paper focuses on the global regularity problem for a family of active scalar equations with fractional dissipation. We obtain an explicit lower bound on the local existence of solutions, the eventual regularity of solutions and the global ...

Saliency detection as a recently active research field of computer vision, has a wide range of applications, such as pattern recognition, image retrieval, adaptive compression, target detection, etc. In this paper, we propose a saliency detection method ...

Traditional PID control algorithm has made an extraordinary contribution for excellent mach inability of NC machine. Along with the increasing of the machining precision and rising of exterior disturbance, traditional PID control algorithm could not ...