系統識別號 | U0002-1607202117052300 |
---|---|
DOI | 10.6846/TKU.2021.00356 |
論文名稱(中文) | 生醫文獻探勘-基於遠程監督的圖核以提取基因-基因相互作用 |
論文名稱(英文) | Biomedical literature mining - graph kernel based on distant supervision for extracting gene-gene interactions |
第三語言論文名稱 | |
校院名稱 | 淡江大學 |
系所名稱(中文) | 統計學系應用統計學碩士班 |
系所名稱(英文) | Department of Statistics |
外國學位學校名稱 | |
外國學位學院名稱 | |
外國學位研究所名稱 | |
學年度 | 109 |
學期 | 2 |
出版年 | 110 |
研究生(中文) | 蔡鎮輿 |
研究生(英文) | Chen-Yu Tsai |
學號 | 608650213 |
學位類別 | 碩士 |
語言別 | 繁體中文 |
第二語言別 | |
口試日期 | 2021-07-12 |
論文頁數 | 52頁 |
口試委員 |
指導教授
-
謝璦如(142438@mail.tku.edu.tw)
委員 - 張志勇(cychang@mail.tku.edu.tw) 委員 - 蔡宗翰(thtsai@g.ncu.edu.tw) |
關鍵字(中) |
生物醫學文獻探勘 遠程監督學習 關係抽取 圖核 基因-基因交互關係提取 |
關鍵字(英) |
Biomedical literature mining Relation extraction graph kernel Distant supervised learning gene-gene interaction extraction |
第三語言關鍵字 | |
學科別分類 | |
中文摘要 |
監督式機器學習方法常被應用在生物醫學關係提取。缺點是需要帶註釋的 訓練樣本資料集,通常由人工花費大量時間及成本創建。遠程監督通過將知識庫與語料庫結合,自動化註釋訓練語料庫。這種方法在生物醫學非常實用,因為許多生物醫學資料庫已提供可供研究的知識庫,但可使用的註釋語料庫卻數量有限。 而基因-基因交互作用可幫助解釋人類複雜性疾病缺失的遺傳率(heritability),因此本研究主要目的為發展基因-基因交互關係的提取方法。本研究使用KEGG pathway知識庫的基因-基因交互作用資訊,從PubMed摘要中生成訓練樣本集,並使用基於圖核的方法提取基因-基因交互關係。評估結果最好可以達到F-score為0.79。 本研究發展遠程監督方法,可在自動化創建基因-基因交互關係提取的語料庫的能有效減少人工註釋數據所需花費的大量時間成本;而基於圖核的關係提取方法成功應用在基因-基因交互關係提取,期望本研究成果能幫助精準醫療之實現。 |
英文摘要 |
Supervised machine learning methods are often used in biomedical relationship extraction. The drawback is the need for annotated datasets of training samples, which are usually created at considerable time and cost by manual. Distant supervised can automatically annotate and train corpus by combining knowledge base with corpus. This approach is useful in biomedicine, where many biomedicine databases already provide a knowledge base to study, but the number of annotated corpora that can be used is limited. Gene-gene interaction can help explain heritability of complex diseases in humans, so the main purpose of this study is to develop methods to extract gene-gene interaction. In this study, gene-gene interaction information from the KEGG pathway knowledge base was used to generate training sample sets from the PubMed abstract, and the gene-gene interaction was extracted by the method based on graph kernel. The best assessment result could be achieved with an F-score of 0.79. In this study, a distant supervised method is developed, which can effectively reduce the time cost of manually annotating data in automating the creation of gene-gene interaction extracted corpus. The relationship extraction method based on graph kernel has been successfully applied to the extraction of gene-gene interaction relationship. It is expected that the results of this study can help the realization of precision medicine. |
第三語言摘要 | |
論文目次 |
目錄 謝誌 I 目錄 I 表目錄 III 圖目錄 IV 第一章 緒論 1 第一節 研究背景 1 第二節 研究動機與目的 2 第二章 文獻探討 3 第一節 生醫文獻探勘 3 第二節 生醫關係提取方法 3 第三節 遠程監督生醫關係提取方法 5 第四節 語料庫 6 2.4.1 現有基因相關語料庫 6 2.4.2 PubMed 8 2.4.3 NER 工具–PubTator 8 2.4.4 GGI 知識庫–KEGG 8 第五節 圖形特徵 9 2.5.1 詞彙特徵(Lexical features) 10 2.5.2 句法特徵(Syntactic features) 10 第六節 基於圖核的分類方法 11 2.6.1 用內核分類 11 2.6.2 圖形內核(Graph Kernel) 13 2.6.3 Python 應用 14 第三章 研究方法 15 第一節 研究架構 15 第二節 資料集 16 3.2.1 KEGG 的參考文獻 16 3.2.2 Mesh 作為關鍵字搜索 16 第三節 文本預處理 17 3.3.1 實體辨識 17 3.3.2 選取基因共現的句子 18 3.3.3 遠程監督語料庫 18 第四節 構造基於特徵的圖形 19 3.4.1 句法依賴解析、詞性標記 19 3.4.2 判斷句子類別 20 3.4.3 基於特徵的圖形 22 第五節 SVM-圖形內核 24 3.5.1. Shortest-Path kernel, SPK 25 3.5.2. Weisfeiler-Lehman Kernel, WLK 26 3.5.3. Neighborhood Hash Kernel, NHK 27 第四章 結果 30 第一節 資料 30 4.1.1. 資料集劃分 30 4.1.2. 分類設置 31 第二節 評估結果 32 4.2.1. CV 結果 32 4.2.2. 分類結果 33 第三節 WLK & NHK 方法比較 36 第四節 研究發現總結 37 第五節 新基因-基因交互作用 38 第六節 研究資料 39 第五章 討論與結論 40 第一節 討論 40 第二節 結論 41 第三節 未來研究發展 41 第六章 附錄 42 參考文獻 46 表目錄 表格 1、基因相關的NER 語料庫 7 表格 2、基因相關的關係語料庫 7 表格 3、使用依賴圖改善生醫關係提取的研究 9 表格 4、生物醫學依存句法剖析器 11 表格 5、基於核方法的生物醫學關係提取研究 13 表格 6、可用圖形內核調查 14 表格 7、python 中應用圖核的函式庫 14 表格 8、圖形特徵 23 表格 9、三種圖形內核 24 表格 10、XOR 和ROT 的範例 28 表格 11、三種方法的性能評估 35 圖目錄 圖 1 流程架構圖 15 圖 2 PubTator Central 在線提供帶有基因註釋的摘要 18 圖 3 遠程監督語料庫 19 圖 4 句子圖形特徵 20 圖 5 二型糖尿病的KEGG pathway 21 圖 6 特徵圖形示意圖 23 圖 7 資料集劃分 31 圖 8 三種方法的CV 訓練過程 33 圖 9 三種方法的混淆矩陣 34 圖 10 三種方法的ROC-AUC 36 圖 11 預測新基因-基因交互作用的效果 38 附圖A- 1 Random Walk kernel - P,R,F-score 42 附圖A- 2 Random Walk kernel - ROC 42 附圖B- 1 負比例(1:10 & 1:100)-CV 43 附圖B- 2 負比例(1:10 & 1:100)-CM 44 附圖B- 3 負比例(1:10 & 1:100)-P,R,F-score 44 附圖B- 4 負比例(1:10 & 1:100)-ROC 45 |
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