Publications by authors named "Yongxi Lyu"

Interval-valued linguistic neutrosophic sets (IVLNSs), Z-numbers, and the trapezium cloud model are powerful tools for expressing uncertainty and randomness. This paper aims to combine these methodologies. First, we review relevant concepts and operators, introducing a novel combination of IVLNSs and Z-numbers, which establishes a new form of expression.

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Support vector data description (SVDD) is widely regarded as an effective technique for addressing anomaly detection problems. However, its performance can significantly deteriorate when the training data are affected by outliers or mislabeled observations. This study introduces a universal truncated loss function framework into the SVDD model to enhance its robustness and employs the fast alternating direction method of multipliers (ADMM) algorithm to solve various truncated loss functions.

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Article Synopsis
  • The paper evaluates how non-pharmaceutical interventions (NPIs) and vaccines impact the management of COVID-19 to help governments tailor effective policies.
  • It introduces the Braking Force Model on Virus Transmission, which assesses the effectiveness of various NPIs and vaccine strategies, predicting the time needed to control the pandemic.
  • Results indicate that strict lockdowns are essential for immediate control, while NPIs alone may slow the spread but not eradicate the virus; thus, vaccination is crucial for a successful end to the pandemic.
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Target tracking is a typical application of unmanned aerial vehicles(UAVs). However, it is difficult for the existing guidance laws to meet the requirements of convergence speed and tracking accuracy at the same time. A new guidance law based on a coordinated turning equation is proposed to achieve target tracking, and its asymptotic stability is proved.

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