個人創造力的發展在現在越來越受到重視，而創造力發展工具心智圖的使用也越來越普遍，心智圖是一種以圖像為基礎的結構化擴散性思考工具，擴散性思考發散出許多想法後，如何把想法收斂且搭配出具有創意的應用，一直是大家所思考的課題。為了幫助心智圖使用者收斂心智圖中的想法，本研究建立一個推薦系統並導入K-means群集分析演算法分析心智圖中的想法內容，並在想法收斂階段給予使用者不同想法收斂組合的推薦，讓使用者完成一個有創意的應用。本研究實驗的參與者是大學一年級37位選修程式設計課程的學生。實驗的題目是讓學生針對政府開放資料的主題進行創意發想。在創意發想階段，實驗組與控制組皆是使用心智圖做創意發想。之後在創意收斂階段，控制組學生自力從發想出的想法中挑選出覺得可以搭配成創意應用的想法組合，並寫出創意應用程式，而實驗組學生則在挑選過程中接受系統的推薦。針對實驗結果的挑選想法收斂組合和最後的創意應用來評比其創造力的流暢力、獨創力、變通力和精進力。結果顯示挑選想法收斂組合的創造力分數，實驗組的平均分數大於控制組，但是並沒有達到顯著差異，以至於最後的創意應用的創造力分數亦不顯著，但是透過此推薦系統的使用，確實可以幫助使用者篩選出有相關性的想法組合。

Personal creativity development is becoming more and more important. The use of Mind map tool creativity development becomes more and more common. Mind map is a divergent thinking tool based on texts and images, which can help users brainstorming to generate a lot of ideas in a short time. But how to converge the massive ideas and make a creative application out of them always remains as an issue for researchers and users. In order to help users of the mind map to converge their ideas, this study build a recommendation system that uses the K-means analysis algorithm to analyze the contents of the mind map ideas, cluster them into groups of closely related ideas, and recommend an appropriate group to the users when they are converging the ideas. To value the feasibility of the recommendation system, this study conducts an experiment, which recruits 37 student participants who enroll in a university programing design course. The subject of the experiment is to let students use mind map to generate ideas from some government's open information and, using these ideas, to make creative application programs. In the creative thinking stage, both the experimental group and the control group use the same mind map tool to brainstorm ideas, while in the converging stage for grouping ideas combination that can be used to create creative applications, the experimental group pick ideas that might be recommended by the system and the control group picks ideas only with free will. The evaluation criteria for the idea combinations and the creative applications include fluency, flexibility, originality and elaboration, indexes from the Torrance Tests of Creative Thinking (TTCT). The result of the experiment indicates that the experimental group, in general, performs better than the control group in the creativity idea combinations, but not to a significantly different level. The experimental group also performs better but not significantly than the control group in the final creative application programs. However, by the help of the recommendation system, users of the mind map tool can converge ideals more closely related for final productions.

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