IET Oncampus x Taichung Tech
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    # 5/12(四) 社群讀書會 影片連結:https://youtu.be/7XZR0-4uS5sh ## 什麼是機器學習? 機器學習 → 叫機器找函數 範例: - 語音辨識 - 影像辨識 - 圍棋 Alpha Go 深度學習 -> 函數是類神經網路 輸入: vector 向量 matrix 矩陣(e.g., 圖片) sequence (e.g., 語音、文字等) 輸出類型: scalar -> regression 分類 -> classification ## Supervised Learning 監督式學習 1. 收集 training data 2. label[標註] ## Self-supervised Learning 自監督學習 * 人工標記資料 -> 耗時耗力 -> 效率低下 => 解法α * (α)Pre-train (預訓練) unlabeled data A.K.A. foundation model(基礎模型) e.g., BERT * Downstream Tasks (下游任務) ## Generative Adversarial Network, GAN 生成對抗網路 [小學生談『生成對抗網路』(Generative Adversarial Network,GAN)](https://ithelp.ithome.com.tw/articles/10196257) ## Reinforcement Learning (增強學習) * 不知道如何標記訓練資料,但可以定義成功 ## Anomaly Detection (異常檢測) * 可以回答"我不知道"的能力 ## Explainable AI 可解釋 * 可以解釋為什麼知道答案 ## Model Attack 模型攻擊 * 加雜訊會讓資料被辨識錯誤 * 有哪些攻擊技術 ## Domain Adaptation 概述領域自適應 * 解決資料差異導致辨識率暴跌的問題 ## Network compression 模型壓縮 - 把大模型變小,讓他可以跑在小 devices 上 ## Life-long Learning * 可以持續學習不同的問題 ## Meta learning * 學習如何學習 * 機器發明學習的演算法 * few-shot learning 用少量資料進行學習 ## pytorch pros: GPU 加速 計算梯度方便 ### tensor - 查看維度 shape - 建立 zeros ones - 常見操作 轉置: transpose 去除維度: squeeze 增加維度: unsqueeze 合併多個 tensor: cat - 更換運算 device CPU: to('cpu') GPU: to('cuda') - 確認有沒有GPU torch.cude.is_available() --- 問題區 : --- 討論區: numpy / tensors --- 相關資料 : http://arxiv.org/abs/1804.00316 -> 對抗式網路(音頻) http://arxiv.org/abs/1812.09323 -> 語音辨識 http://arxiv.org/abs/1904.04100 -> 對抗網路 http://arxiv.org/abs/2105.11084 -> 無監督式語音識別

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