datascienceseed meetup #4 · 2019. 3. 17. · digital tree - innovation habitat, 14 marzo 2019....
TRANSCRIPT
![Page 1: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/1.jpg)
Digital Tree - Innovation Habitat, 14 Marzo 2019
Andrea Rapuzzi
DataScienceSeedMeetup #4
![Page 2: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/2.jpg)
Parleremo di…
![Page 3: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/3.jpg)
Parleremo di…
![Page 4: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/4.jpg)
Parleremo di…
![Page 5: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/5.jpg)
Parleremo di…
![Page 6: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/6.jpg)
Parleremo di…
![Page 7: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/7.jpg)
Parleremo di…
![Page 8: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/8.jpg)
Parleremo di…
![Page 9: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/9.jpg)
Parleremo di…
![Page 10: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/10.jpg)
Parleremo di…
![Page 11: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/11.jpg)
Parleremo di…
![Page 12: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/12.jpg)
Parleremo di…
![Page 13: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/13.jpg)
![Page 14: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/14.jpg)
![Page 15: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/15.jpg)
![Page 16: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/16.jpg)
![Page 17: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/17.jpg)
![Page 18: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/18.jpg)
![Page 19: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/19.jpg)
![Page 20: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/20.jpg)
![Page 21: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/21.jpg)
![Page 22: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/22.jpg)
Image Classification
![Page 23: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/23.jpg)
Object Detection
![Page 24: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/24.jpg)
Semantic Segmentation
![Page 25: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/25.jpg)
Instance Segmentation
![Page 26: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/26.jpg)
Perceptron - (Frank Rosenblatt)
![Page 27: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/27.jpg)
![Page 28: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/28.jpg)
Rete neurale
![Page 29: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/29.jpg)
Learning: Gradient Descent + Backpropagation
TL;DR
Modificare iterativamenteparametri
Migliorare risultatialgoritmo
![Page 30: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/30.jpg)
Convolutional Filter
Explained Visually (http://setosa.io/ev/image-kernels/)
![Page 31: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/31.jpg)
Esempio filtri
![Page 32: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/32.jpg)
Pooling
![Page 33: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/33.jpg)
LeNet-5 (Yann LeCun) - AlexNet (Alex Krizhevsky)
![Page 34: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/34.jpg)
Visualizing and Understanding Convolutional Networks(https://arxiv.org/abs/1311.2901)
![Page 35: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/35.jpg)
si parte!!
![Page 36: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/36.jpg)
Comprensione del problema
- Criterio di valutazione:
- Strategia di validazione
- Intersection over Union (IoU)
- Soglie (0.5 - 0.95)
1𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡𝑡
�𝑡𝑡
𝑇𝑇𝑇𝑇(𝑡𝑡)𝑇𝑇𝑇𝑇 𝑡𝑡 + 𝐹𝐹𝑇𝑇 𝑡𝑡 + 𝐹𝐹𝐹𝐹(𝑡𝑡)
![Page 37: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/37.jpg)
U-Net (2015) (https://arxiv.org/abs/1505.04597)
![Page 38: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/38.jpg)
R-CNN (2014) (https://arxiv.org/abs/1311.2524)
![Page 39: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/39.jpg)
Fast R-CNN (2015) (https://arxiv.org/abs/1504.08083)
![Page 40: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/40.jpg)
Faster R-CNN (2015) (https://arxiv.org/abs/1506.01497)
![Page 41: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/41.jpg)
Mask R-CNN (2017) (https://arxiv.org/abs/1703.06870)
![Page 42: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/42.jpg)
Induzione
![Page 43: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/43.jpg)
![Page 44: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/44.jpg)
![Page 45: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/45.jpg)
![Page 46: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/46.jpg)
![Page 47: DataScienceSeed Meetup #4 · 2019. 3. 17. · Digital Tree - Innovation Habitat, 14 Marzo 2019. Andrea Rapuzzi. DataScienceSeed Meetup #4](https://reader035.vdocuments.site/reader035/viewer/2022071218/605282ad99a71167f73c68d3/html5/thumbnails/47.jpg)