| 研究生: |
王尹暘 Wang, Yin-Yang |
|---|---|
| 論文名稱: |
以決策樹預測台南世紀之門房價 Applying Decision Tree to Predict the House Prices of the Century Gate Buiding in Tainan |
| 指導教授: |
潘南飛
Pan, Nang-Fei |
| 學位類別: |
碩士 Master |
| 系所名稱: |
工學院 - 土木工程學系 Department of Civil Engineering |
| 論文出版年: | 2023 |
| 畢業學年度: | 111 |
| 語文別: | 中文 |
| 論文頁數: | 81 |
| 中文關鍵詞: | 決策樹 、資料探勘 、房價預測 、實價登錄 |
| 外文關鍵詞: | Decision Tree, Actual Price Registration, Predicting House Prices, Data Mining |
| 相關次數: | 點閱:71 下載:11 |
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近年來台灣房價居高不下,讓許多人打消買房念頭,根據世界銀行的統計,發達國家正常的房價所得比一般在1.8~5.5之間, 然而2023年台灣的房價所得比卻為20.1,台北更高達29.5,遠高於世界銀行統計的合理值。為了打造健全的房市,內政部於民國101年8月開始推動「實價登錄系統」,旨在提高房地產價格的透明度,透過公開實際交易價格解決以往的資訊不對稱問題。這項措施不僅讓一般民眾更加瞭解市場行情,還能緩解因資訊不對稱導致的高房價問題。為方便一般民眾的使用和查詢,本研究使用的所有數據都來自實價登錄系統以及政府機關的公開資料。研究方法部分,本研究使用決策樹CART和CHAID建構了房價預測模型,並對其進行比較分析。
本研究使用內政部實價登錄系統的實際交易價格資訊進行研究,樣本選取範圍限制在台南市北區世紀之門大樓,對特定建案進行研究分析,並將外在環境條件影響降至最低。過去,許多研究使用類神經網路與迴歸模型來預測房價走勢,但使用決策樹來預測房價的研究相對較少,因此,本研究欲以CART決策樹和CHAID決策樹來預測房價,相比於類神經網路預測的不透明性,決策樹模型能夠清楚地呈現其規則和分類流程,讓使用者更容易理解。
本研究針對世紀之門大樓進行房價預測,並進行兩種決策樹方法的比較分析,研究結果顯示,在預測準確度上CHAID法準確度高於CART法,而兩種決策樹方法的R-Squared值均超過0.75,這表明兩種模型對於世紀之門大樓的房價預測皆具有相當高的解釋能力,因此,本研究的模型可作為購買世紀之門大樓或周邊地區的房價預測參考依據。
In recent years, Taiwan's housing prices have remained persistently high, dissuading people from considering property purchases. In order to implement housing justice and a health housing market, the Ministry of Interior began to promote the Actual Price Registration System in 2012 to increase the transparency of market price of the real estate, and to solve the problem of information asymmetry in the past by disclosing actual transaction prices. Due to information asymmetry, the general public has less information about the market conditions. In order to make it easier for the general public to use and inquire, all the data used in this research is from the public information of the government agencies. The decision tree is used to build house price prediction models for mutual comparison and analysis. Hope these methods can provide helps to solve the problems caused by information asymmetry.
In the past, many studies have used neural network regression models to predict housing price trends. However, using a decision tree to predict housing prices is relatively rare in data mining techniques. Therefore, this study used two decision trees to predict housing prices. Compared to neural network, the decision tree model is more transparent, allowing users to understand the rules and classification process more clearly.
The results of the study show that the R-Squared value of the two methods are above 0.75, which shows these two models have high explanatory power to predict house prices.
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