• 検索結果がありません。

Predicting the endprice and sold probability of online auctions for higher profit

N/A
N/A
Protected

Academic year: 2018

シェア "Predicting the endprice and sold probability of online auctions for higher profit"

Copied!
9
0
0

読み込み中.... (全文を見る)

全文

Loading

圖 2 多元模型
表 4 以多個二元分類器對拍賣式刊登商品做結 標價預測準確率(未經樣本矯正) 表 5 以多個二元分類器對拍賣式刊登商品做結標 價預測的平均值 我們從測試集中抽取起標價高於平均結標 價且未售出的商品,比較有無矯正的結標價預測 值。如表 5 所示,當我們使用多個二元分類器預測 結標價時,矯正後的平均預測值大多皆高於未矯正 的預測值,使得預測值更接近於其平均起標價,即 更能接近於商品的真實結標價。同樣地,我們也比 較利用線性廻歸在資料矯正前後的預測值,相對於 多個二元分類器的結果,發現只有對 SD550 測試 集

参照

関連したドキュメント

Standard domino tableaux have already been considered by many authors [33], [6], [34], [8], [1], but, to the best of our knowledge, the expression of the

Then he found that the trapezoidal formula is optimal in each of both function spaces and that the error of the trapezoidal formula approaches zero faster in the function space

Keywords: divergence-measure fields, normal traces, Gauss-Green theorem, product rules, Radon measures, conservation laws, Euler equations, gas dynamics, entropy solu-

The edges terminating in a correspond to the generators, i.e., the south-west cor- ners of the respective Ferrers diagram, whereas the edges originating in a correspond to the

Proof of Theorem 2: The Push-and-Pull algorithm consists of the Initialization phase to generate an initial tableau that contains some basic variables, followed by the Push and

Proof of Theorem 2: The Push-and-Pull algorithm consists of the Initialization phase to generate an initial tableau that contains some basic variables, followed by the Push and

An easy-to-use procedure is presented for improving the ε-constraint method for computing the efficient frontier of the portfolio selection problem endowed with additional cardinality

We describe a generalisation of the Fontaine- Wintenberger theory of the “field of norms” functor to local fields with imperfect residue field, generalising work of Abrashkin for