深度學習考古題
Image Not Showing
Possible Reasons
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →
2.廣度代表的是單次卷積運算後,所產生出的特徵圖數
深度則代表經過多少個卷積層或其他如pooling,dropout的運算總層數。
一個深度學習模型越深不代表越好,這需要考慮模型所應用的資料,以及模型的設計等,例如CoauthorsCS引文網路的結點分類任務上的一般結果。深度越深,基線(帶有殘差連線的GCN)的表現越差。
但若在適當的調整下,深度越深在人臉辨識方面,可以讀取到更大範圍的臉部特徵,以方便辨識人臉
廣度越廣可以獲取更多的影像資訊,如原本只能偵測到直線,斜線,近一步偵測斜紋路等等,但隨著廣度的增加運算量也會增加
特徵向量越長越好嗎?不一定
在比較上會被稀釋,造成比較上可能會被模糊
3.
4.
Image Not Showing
Possible Reasons
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →
注意力是指可以針對特定通道乘以不同的倍率,以強調或減少權重。又比如在一張影像當中的不同位置,可以針對特徵圖進行權重加乘,以強調特定位置ex左下角的重要性,將右上角減少重要性等等
5.
令圖的大小為mn
左圖是一一對應相加,結果一樣是64張特徵圖,總共mn64個加法
右圖是直接並聯,因此會得到128張特徵圖,然後再使用11卷積運算出64張特徵圖
乘法:128mn64
加法:127mn64
addition 是concatenation加一個卷積的subset
concatenation特徵圖增加一倍,速度慢很多,保留比較多的特徵資料,速度被拖慢。
Image Not Showing
Possible Reasons
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →
Image Not Showing
Possible Reasons
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →
Image Not Showing
Possible Reasons
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →
class label smoothing 降低過度擬合現象
Image Not Showing
Possible Reasons
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →
Image Not Showing
Possible Reasons
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →
因為IOU有一些無法充分表達的特性,因此出現GIOU
Image Not Showing
Possible Reasons
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →
skip 跟shortcut的差別:
skip 用concatenation
shortcut最後是用pixelwise addition
Image Not Showing
Possible Reasons
- The image file may be corrupted
- The server hosting the image is unavailable
- The image path is incorrect
- The image format is not supported
Learn More →
- Xception 跟MobileNet都有做separable convolution,差在哪?
- M:先做depth wise再做point
- X:先做point再做depth