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Tbrain舉辦的「玉山人工智慧公開挑戰賽2019夏季賽 - 台灣不動產AI神預測」冠軍隊伍

Python 99.90% Shell 0.10%

tbrain_esun_house_price_predict's Introduction

TBrain: E-Sun House Price Prediction

image

Contributors

  • yc (github: GitYCC)
  • chenchc (github: chenchc)

Abstract

Our team "WWW-YCC-IDV-TW" won 1st Place in the game 玉山人工智慧公開挑戰賽2019夏季賽 - 台灣不動產AI神預測.
This repo shows our method.

private_leaderboard

Rule

國外關於自動估價系統(Automated Valuation Model, AVM)研究對模型準確度好壞之判定,多以命中率(Hit-Ratio或Hit-Rate)為標準。
Hit-Rate 表示有多少比例個案之估值誤差低於某一誤差水準值(本次競賽為10%),Hit-Rate 愈高表示模型精確度愈高。
Hit-Rate的計算共分為兩步驟,首先比對各筆不動產預測和真實價格的誤差水準是否小於等於 10%,若是,則為 1;若否,則為 0。

cmp6_eval1

最終將各數值取平均,得到最終的Hit-Rate:

cmp6_eval2

不過考量到Hit Rate可能出現同分的情形,因此本次比賽採用 Hit Rate 結合 MAPE 作為最終的評分方式:

cmp6_eval3

舉例:
假設測試集一共有三筆不動產的資訊,且您預測三筆不動產總價依序為1300、1100和1050萬,若此三筆不動產真實價格皆為1000萬,則Hit-Rate為:

cmp6_eval4

cmp6_eval5

tbrain_esun_house_price_predict's People

Contributors

gitycc avatar chenchc avatar

Watchers

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