Qinghua Zhao

Sep 11, 2024 | mdpi.com | Junfeng Liu |Qinghua Zhao

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Aug 12, 2023 | onlinelibrary.wiley.com | LinLin Zhang |Qinghua Zhao

REFERENCES (1990). Beyond social withdrawal: Shyness, unsociability, and peer avoidance. Human Development, 33(4-5), 250–259. http://doi.org/10.1159/000276522 , & (2006). Comparison of estimation methods for complex survey data analysis. Retrieved from http://www.statmodel.com/download/SurveyComp21.pdf , , & (2016). Brief report: Perceptions of social withdrawal during emerging adulthood in Lagos, Nigeria. Journal of Adolescence, 47, 1–4.

Aug 2, 2023 | mdpi.com | Shan Yang |Yongfei Zhang |Qinghua Zhao |Yanglin Pu

Abstract:Deep metric learning aims to learn a mapping function that projects input data into a high-dimensional embedding space, facilitating the clustering of similar data points while ensuring dissimilar ones are far apart. The most recent studies focus on designing a batch sampler and mining online triplets to achieve this purpose. Conventionally, hard negative mining schemes serve as the preferred batch sampler.