Please select from the left product classification table you have to check the product classifications 請從左邊產品分類列表中選擇你要查看的產品分類當前產品分類為
Introduction : as of august 1st , gongbei customs began using a new entry passenger luggage articles classification table and duty tariff table 8月1日起,拱北海關開始執行新修訂的"入境旅客行李物品稅則歸類表"及"完稅價格表" 。
In this paper , a rs - based model , which starts up from trained documents for web documents classification , is introduced . taking advantage of the rs theory ' s features in efficient dealing with vague , indiscernible , and fuzzy information , we sets up a series of layered subsystems to reduce redundant properties from classification tables . in this way , we can not only efficiently reduce the dimension of documents but also keep the information of keywords set 本文提出了一種基于粗糙集理論的web文本分類模型,該模型從已分類的訓練文本出發,建立一系列不同層次的文本分類子系統,利用roughset理論有效處理不精確、不確定、含糊信息的特性,對分類決策表進行屬性約簡,既有效降低了web文本的維度,又保持關鍵詞集合中的信息。