Xing Zhao

[Temporal and spatial distribution of air pollution in Shenzhen City during 2014-2016].

2018 · PubMed

OBJECTIVE: To investigate spatial-temporal distribution characteristics of air quality indexes( AQI) in Shenzhen City and provide scientific basis for control of air pollution. METHODS: The monitoring data of AQI collected at the 19 monitoring posts …

Elastic Bulk Synchronous Parallel Model for Distributed Deep Learning

2020 · arXiv (Cornell University)

The bulk synchronous parallel (BSP) is a celebrated synchronization model for general-purpose parallel computing that has successfully been employed for distributed training of machine learning models. A prevalent shortcoming of the BSP is that it …

Popularity-Opportunity Bias in Collaborative Filtering

2021

This paper connects equal opportunity to popularity bias in implicit recommenders to introduce the problem of popularity-opportunity bias. That is, conditioned on user preferences that a user likes both items, the more popular item is …