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| 研究生： |
胡瑞軒 Hu, Ruei-Xsuan |
|---|---|
| 論文名稱： |
主題分析方法在經濟文獻學上的應用：隱含狄利克雷分配與代理人基計算經濟學 Topic Analysis in the Automatic Organization of Economic Literature: The Case of Agent-Based Computational Economics with the Use of Latent Dirichlet Allocation |
| 指導教授： |
陳樹衡
Chen, Shu-Heng |
| 口試委員: |
池秉聰
Chie, Bin-Tzong 曾翊恆 Tseng, Yi-Heng |
| 學位類別： |
碩士
Master |
| 系所名稱： |
社會科學學院 - 經濟學系 Department of Economics |
| 論文出版年： | 2022 |
| 畢業學年度： | 110 |
| 語文別： | 中文 |
| 論文頁數： | 79 |
| 中文關鍵詞： | 代理人基建模 、非監督學習 、詞彙頻率-逆文檔頻率 、文字雲 、自然語言處理 、主題一致性 、主題相似度 |
| 外文關鍵詞： | Agent-Based Modeling, Unsupervised Learning, TF-IDF, Wordcloud, NLP, Topic coherence, Topic similarity |
| DOI URL： | http://doi.org/10.6814/NCCU202201265 |
| 相關次數： | 點閱：185 下載：20 |
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本文將多個期刊的代理人基建模(Agent-Based Modeling, ABM) 的論文用主題模型中的隱含狄利克雷分配(Latent Dirichlet Allocation, LDA) 進行分類，接著用詞彙頻率-逆文檔頻率(Term Frequency-Inverse Document Frequency, TF-IDF) 與文字雲分別找出與該主題相關卻被過濾掉的詞彙以及主題之間的相同詞彙並且對於每個主題所屬的期刊進行分類並分析主題隨時間的變化。最後，主題相似度、主題排名與主題一致性分析結果顯示每個主題的重疊度不大，主題解釋比例與一致性都很高。本文有別於過往研究，進行多個期刊的分析以及分類之後的評估，主題相似度、主題排名與主題一致性評估方式顯示隱含狄利克雷分配模型能有效地量化具體的方式將文檔分類，且比人為的分類方式降低更多時間成本與資料複雜度。
In this paper, we classify Agent-Based Modeling (ABM) papers in multiple journals with Latent Dirichlet Allocation (LDA) in topic model. By applying analyses of TF-IDF algorithm and word cloud, we recollect words related to the topic but filtered out in the first place and gather same words belonging to different topics. Also, we analyze the dynamics of topics in several journals over time. Finally, the results of topic similarity, topic ranking and topic consistency analysis show that each topic has little overlap, and the topic explanation ratio and consistency are high. Different from previous studies, we classify ABM papers in multiply journals and have further evaluations. The evaluation methods of topic similarity, topic ranking and topic consistency show that the implicit Dirichlet allocation model can effectively quantitatively classify documents. And it reduces more time cost and data complexity than artificial classification.
摘要 I
Abstractv II
1 緒論 1
2 研究流程 4
3 理論架構 6
3.1 主題建模 6
3.2 隱含狄利克雷分配的基本概念 7
3.3 分類方式與採用理論 11
3.3.1 TF-IDF 演算法 12
3.3.2 文字雲 14
3.3.3 餘弦距離 14
3.3.4 主題一致性 15
4 數據與數據分析方法 16
4.1 數據 16
4.2 數據分析方法 17
5 研究結果 18
5.1 解釋主題 19
5.2 分析主題類別 24
5.3 主題相關詞彙 34
5.4 與一般文檔分類相異之處 38
5.5 TF-IDF 演算法 45
5.6 主題隨時間的變化 52
5.7 使用文字雲來識別主題 62
5.8 主題相似程度 68
5.9 主題排名 70
5.10 主題一致性 73
6 結論與建議 75
6.1 結論 75
6.2 建議 76
7 參考文獻 77
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