以視覺化語意內容為基礎之日文閱讀輔助學習系統

A Japanese Reading Assistance System Based on Semantic Context Visualization

網路的普及使得人們有機會閱讀大量電子化的文章。站在日語教育的立場，由於獲得真實語言材料的管道變得容易，若能有效利用這些資料，對培養學習者閱讀能力的養成將有很大的助益。然而如何從大量的電子化資料中擷取關於文章主題或內容相關有助理解的資訊並傳達給學習者，還有許多尚待研究之處。因此本研究以學習者即使沒有閱覽文章全文，亦能從中快速獲得有用的資訊並掌握內容為目標，從教育科技的觀點提出利用文字探勘的技術，解析文章的特徵抽取出具代表性的關鍵字與其相關字並且加以視覺化的閱讀輔助方案。此外，為求深化文章內容之理解，搭配文字轉換合成聲音的技術，使其依學習者需求自動閱讀文章全文或單字，對漢字發音感到困擾的學習者應該有相當大的助益。此外，系統中內建的例文檢索功能，能以被抽取出的關鍵字為基礎，顯示出該關鍵字在其他例文中的使用狀況。對有漢字背景的台灣學習者而言，雖然能很快習得日文漢字，然而卻也常常出現將中文當成日文漢字使用的情況。因此有必要將中日漢字寫法的異同明確顯示出來。基於上述需求，本研究所開發之中日漢字語彙比較模組，除可顯示中日漢字語彙之異同，亦能與語音合成朗讀、例文檢索以及中英日三國辭典模組連動。本研究對台灣日語教育的預期貢獻在於以培養學習者的閱讀能力為目標，透過抽取電子化文章中主題、關鍵字等有用的資訊並加以視覺化的方式，使學習內容更有效地傳達給學習者。學習者在進行自主學習之際，不僅可以快速掌握文章的概要，亦可學習中日漢字詞彙的之異同，並且透過語音合成的技術深化對文章內容的理解。

The popularization of internet provides people with more opportunity for reading a great deal of digitized texts. From the perspective of Japanese pedagogy, the easy access of these authentic materials paves the way for bringing up Japanese learners' reading competence. However, it remains an unsettled question how to retrieve information that are useful for comprehension from considerable quantities of digitized texts and deliver it to learners effectively. Therefore, this study aims to propose a text mining based solution which assists learners of Japanese to quickly retrieve the gist of texts even without reading the whole context. It will analyze and extract the key words as well as their associated words from texts, then visualize them. In addition, Text-to-Speech technology will be employed to read the whole texts or designated words for the furtherance of reading comprehension.A built-in example sentence search module can present how a specified word is used in other contexts. Learners of Japanese take an advantage in learning kanji while this benefit brings a side effect at the same time. That is, many learners tend to mistake Chinese words for Japanese kanji. Therefore, it is necessary to clearly show the difference between Chinese words and Japanese kanji. A Sino-Japanese kanji comparison module is also developed to achieve this goal.It is hoped that the proposed reading assistance learning system will play a key role in information retrieval and improve learners' reading skills through versatile built-in modules.