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    --- title: Lab Meeting Minutes 2020/12/01 tags: lab_meeting --- >Outline >[TOC] --- # PERAL Lab Meeting - 時間:109年12月01日14:00 - 地點:暨南大學科三館321教室 - 出席者:吳坤熹老師、謝萬霖、陳嘉瑋、劉怡君、田蕙瑜、劉又聖 - 會議主題: [network_traffic_classification_ml](http://ms15.voip.edu.tw/~edgar/PCH/Anomaly/network_traffic_classification_ml_v2.pptx) - 主講者: 謝萬霖 - 主記: 劉怡君 ## 會議內容 - Paper問題回顧 > Paper: User Profiling Based on Application-Level Using Network Metadata - Netflow - source and destination of traffic - class of service - causes of congestion - 在netflow上增加時間相關欄位並把data餵給machine learning 的模型(驗證該欄位的增加是否影響learning的精確度) - 目的: 嘗試分辨使用者正在使用的服務(應用情境判別) - Comment: - 無法分辨的服務可能為異常行為,則可能不用細緻分類[name= Edgar] *** - Quality of Service(QoS)分類 - Interactive - Bulk data transfer - Web browsing - Video playback - Idle behavior *** - 多層機器學習 Overview - Preprocessing - 抓取一坨封包 - Traffic restrictions **<= should be correct** @qvRrq26HTLC4tGK8sBL9PA - Classification window(CW) - 以時間作為window切割的單位(5s) - Flow window(FW) - 每段CW中會有多個flow - 一個連線當作一個window - Behavior window(BW) - 針對flow window再細分 - 以時間切割為一個個window,來紀錄流量(0.5s) - Window Filter - Classification - Layer 1 & 2 : K-means - K-meas: 每個cluster分別取平均值 - Layer1 --> BW - Layer2 --> FW - Layer3 : Randow forest(最小單位為tree) - 取最大可能的分類當分類結果 - Result ### 建議&問題 1. Session 建議改成flow [name= Solomon] 2. (Preview - 嘗試分辨使用者正在使用的服務)"不用那麼細緻的分類"這句話須修正 [name= Solomon] 3. QoS 分類建議以Priority 來排序,大類分四類,至多不過八類 [name= Solomon] 0. Router 控制指令 1. Real time 最高 - Audio 最高 - Vedio 次高 2. Interactive 3. Vedieo Transder 4. File Transfer 4. K-means 需要加圖例說明 [name= Edgar] 5. 本論文最值得參考的地方?[name= Solomon] - Feature Instruction & 6. Idle behavior? [name= Johnson] Ans: 當使用者閒置時,電腦在背景做的運算。 [name= Edgar] 7. Idle 做的事可多了,例如: SETI@home, 破譯密碼等等,做分散式運算(Screen Saver)[name= Solomon] 8. QoS分類中建議改成[name= Solomon] - Router 控制應該更高 1. Real time 最高 - Audio 最高 - Vedio 次高 2. Interactive 3. Vedieo Transder 4. File Transfer ## 待追蹤事項 1. [name= ] ## 臨時動議 ### Wish list :::info - 先survey再來 - $14,000 教師專業社群 ::: - [ ] 氣炸鍋 - [x] 微波爐 - [ ] Grammerly(今天) - [ ] 筆電 - [ ] 樹莓派的保護殼 - [ ] 樹莓派SD卡(Micro SD + 轉接卡) - [x] USB無線鍵盤(人體工學) - [ ] 夠長的延長線 - [ ] 外接Webcam (確認實驗室存貨) - [ ] 三用電表 - [ ] 工業級電腦(mini PC @qvRrq26HTLC4tGK8sBL9PA --- 散會結束時間:16:47

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