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​​​​​軟體資訊>統計分析軟體​​

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Netica Application 貝氏網路分析軟體​

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Netica is a powerful, easy-to-use, complete program for working with belief networks and influence diagrams. It has an intuitive and smooth user interface for drawing the networks, and the relationships between variables may be entered as individual probabilities, in the form of equations, or learned from data files (which may be in ordinary tab-delimited form and have "missing data").

Once a network is created, the knowledge it contains can be transferred to other networks by cutting and pasting, or saved in modular form by creating a library of nodes with disconnected links. Of course, the networks and libraries may be saved in files or printed out.

Netica can be used to transform a network in a number of ways. Variables that are no longer of interest may be removed without changing the overall relationships between the remaining variables (technically, the probabilities are "summed out" when we don't know the variable's value, and a more complex operation is used when we do). 

Netica 是一款功能強大而且非常易於使用的完整解決方案,他可運用在信度網路 (belief networks) 以及影響圖 (Influence diagrams)。直覺性的用戶介面供使用者繪製網絡,用圖形呈現網路結構,或是利用機率來描述變數間的強弱關係。

一旦建立網絡系統,他的領域知識可以透過複製貼上功能轉移到其他網路系統,視需要對所學出來的貝氏網路結構做修改。或是以創建連結中斷的節點庫儲存整模形式。當然,網絡結構和資料庫可以保存在檔案夾中或是列印出來。

Netica 可以用來以多種方式轉換網絡。 不再重要的變量可以被刪除而不改變其餘變量之間的整體關係 (技術上,當我們不知道變量的值時概率被"求和",並且當我們這樣做時使用更複雜的操作) 。

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