臺灣大專學生線上討論中文離題字詞之探討

A Study on Chinese Words or Phrases Used for Online Off-Topic Discussions by College Students in Taiwan

透過線上討論活動進行網路同儕合作學習是近幾年來備受重視的一種學習方式。然而，在一個沒有教師經常介入的線上討論環境中，離題討論訊息的數量過多是目前推動線上討論活動常遭遇的問題。雖然目前已有相關研究提出各種機制或是演算法的改進以偵測離題討論訊息的發生。然而，不管採用何種方法，如何先判定該字詞是離題討論的內容是必須先解決的問題。因此，本研究選取七篇教學實驗對象為臺灣大專生且已發表於SSCI期刊上的離題討論訊息作為分析的內容。彙整後，共計有15229個離題討論訊息，經透過德爾菲法後，從中分析出260個常被歸屬於離題討論的字詞，這些字詞將可提供後續相關研究採用。

Online discussion has been an important method strongly valued for carrying out collaborative peer learning on the Internet in recent years. However, one of the problems appears to be the quantity of off-topic messages while engaging in the online discussion environment without teacher’s intervention. Up to now, several related studies proposing various improved mechanisms or algorithms to detect the occurrence of off topic messages. Nevertheless, the problem coming before the adoption of any method and in need of being solved is how to determine words or phrases as off-topic content. Therefore, this study covers and analyzes the content based on seven Social Sciences Citation Index (SSCI) papers which explore off-topic messages used by college students who were selected as the subjects for the teaching experiments. The results show that a total of 15229 off-topic messages are found from the students’ online discussions. After having a discussion with the Delphi Method, further analysis was made to determine that 260 words or phrases are classified as off-topic messages constantly appearing in online discussions. These words or phrases found in this study can be served as a reference for follow-up research.