The study of constructing ontology with text mining techniques－Take the macroeconomic analysis report for an instance

隨著理財觀念日漸普及，個人與企業對於財經相關資訊的需求也與日俱增。然而，各式各樣隱含有用資訊的財經相關文件雖然越來越容易取得，但多是以文字的方式呈現，無固定格式，較不易整理。如何協助使用者自大量財經文件中尋找和擷取出適當的資訊，已經成為財經相關應用領域的重要研究議題。 在目前眾多知識挖掘相關方法中，文字探勘（text mining）即是以文件內容為主要分析對象，目的在於自非結構或半結構化的文件中萃取出有意義的知識。為此，若有一個良好的機制能將文字探勘所挖掘的知識加以彙整併保存，便可使財經文件內所隱藏的知識進一步的被應用在相關領域上(如決策支援、資訊檢索、知識管理，而這也成為提昇競爭力的重要利基。 本研究針對財經領域相關文件（如財經新聞、投顧之研究報告…等）進行分析，結合文字探勘知識挖掘的能力與知識本體的概念，運用文字探勘中重要演算法－關聯分析挖掘財經文件中隱含的關鍵資訊，提出一套藉由關聯分析所得之關聯規則建立知識本體的新方法。此方法有以下幾點特色：(1)建構一「財經標的模型」，定義財經文件內容之基本架構(2)將文字探勘挖掘之知識以知識本體的方式呈現(3)自動化的建構知識本體。 With the concept of financial management popularizing, Personal and corporations are increasing the financial information demands. However, implicit in all kinds of useful information relevant macroeconomic documents readily available, but most text has no fixed format and difficult to collate. To support users from a large number of macroeconomic documents to find and retrieve the appropriate information has become important research topic in financial-related applications. In many Knowledge Mining Approaches, Text mining is based on analyzing the content of the documents; it purpose to extract the meaningful knowledge from Unstructured or Semi-structured Documents. If there is a good mechanism to keep the accumulation of text mining knowledge exploration, the macroeconomic documents will enable to effective application of tacit knowledge in Decision Support, Information Retrieval, Knowledge Management and other related fields, it is the foundation of enhancing competitiveness. This study aims to analyzing the macroeconomic documents such as the financial and economic news, the research report of investment consular… and so on, Combined with Text Mining knowledge mining ability and concept of Ontology, by one of the important algorithms to text mining－Association Analysis, discovered latent key information in macroeconomic documents, apply a new method of Association Rules for building Ontology. The method has the following characteristics：(1) Constructed 「Target Model」on structure framework to give a definition for the macroeconomic documents (2) To display the knowledge form text mining by Ontology approaches (3) Constructing Ontology automatically