有人用最小生成樹的技術來研究股票市場? - 股票
By Damian
at 2018-01-11T13:18
at 2018-01-11T13:18
Table of Contents
最小生成樹(Minimal spanning tree)
是一種用來研究股票市場(或更廣泛的金融市場)的網絡拓樸的一種技巧
首先先透過收集市場時間序列的數據
建構一個關聯矩陣
得到這個關聯矩陣後
1. 設定閥值
2. 建構最小生成樹
就能建構出一個對於這個股票市場網絡拓樸的地圖
有了這個"股票市場的拓樸"地圖
就有非常多後續的應用能實行
比方說:
這個拓樸的確切結構是什麼? 星形? 隨機? 還是小世界? 甚至是scale-free ?
有什麼特徵?
聚集係數,最短路徑,中心度,社團劃分,度分布,等等
都可以計算出來...
又會有什麼後續的市場演化行為可以預期?
有人開始把這樣的演算技巧應用在股市的套利上了嗎?
能否分享一些見解和討論呢??
(太機密的可以保留沒關係 可以分享初潛想法就好)
感謝喔!!
--
Tags:
股票
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