https://www.rieti.go.jp/jp/publications/dp/19j042.pdf
背景: https://www.bing.com/ck/a?!&&p=aa8755834dd9ccfcJmltdHM9MTcwMzQ2MjQwMCZpZ3VpZD0zZjUwZjI3ZS03MmNkLTYzYWYtMDhkNy1lM2M2NzM1YjYyYzAmaW5zaWQ9NTE5MQ&ptn=3&ver=2&hsh=3&fclid=3f50f27e-72cd-63af-08d7-e3c6735b62c0&psq=%e6%a0%aa%e4%be%a1%e5%8b%95%e5%90%91%e8%ab%96%e6%96%87&u=a1aHR0cHM6Ly93d3cuanN0YWdlLmpzdC5nby5qcC9hcnRpY2xlL3Bqc2FpL0pTQUkyMDIwLzAvSlNBSTIwMjBfM1JpbjQxMi9fYXJ0aWNsZS8tY2hhci9qYS8&ntb=1 https://www.nomuraholdings.com/jp/services/zaikai/journal/pdf/p_201804_02.pdf
2章 経済変数: https://www.imes.boj.or.jp/research/papers/japanese/kk17-6-2.pdf
3章 機械学習: https://www.jstage.jst.go.jp/article/jjsai/24/6/24_796/_pdf
グラフネットワーク: https://orsj.org/wp-content/corsj/or67-7/or67_7_344.pdf