Introduction : environmental security is fundamental to the sustainable development of human society / Zhang Xiao -- Water security in China / Zhang Xiao -- A security analysis of China's soil / Zheng Yuxin -- A security analysis of sludge treatment in China / Wang Shiwen -- A key indicator of...

We introduce a general framework for analyzing large-scale text-based data, combining the strengths of neural-network language processing and generative statistical modeling. Our methodology generates textual factors by (i) representing texts using vector word embedding, (ii) clustering words...

We introduce a general approach for analyzing large-scale text-based data, combining the strengths of neural network language processing and generative statistical modeling to create a factor structure of unstructured data for downstream regressions typically used in social sciences. We generate...