Li Hongyi's 2022 course videos are all given in the form of online videos (all have been recorded, you can choose to finish them all in a short time), during class time there will be live broadcasts to explain additional content (you can not listen) and homework (recommended to do) ), which has been updated to job eight.
The main content of the eighth lesson is Autoencoder and Anomaly Detection . Autoencoder consists of two parts: encoder and decoder. The encoder performs representation learning on the input information, and the decoder restores the representation learning back to the input information. Anomaly Detection is the ability to distinguish "abnormal" data through learning from training data. Hongyi Li Machine Learning Spring 2022 - Lesson 8 and HW8
-
Course video :
Video number of station b : machine learning craftsman
URL : https://www.bilibili.com/video/BV1Z34y1C7sj?spm_id_from=333.999.0.0
-
Github : class and homework courseware and basic code
URL : https://github.com/yaoweizhang/LHY2022-SPRING
Assignment 8 needs to use Kaggle or colab to download codes, training data sets, models and other materials. At the end of the article, there are also ways to obtain teaching assistant codes and training data sets .
-
Job task:
Anomaly Detection (Anomaly Detection) , the training set is 100,000 face photos, the test set is 10,000 face photos with the same distribution as the training set and 10,000 "abnormal" photos, the model needs to distinguish "abnormal" photos, see b for job details homework videos and courseware.
-
Kaggle submission address :
https://www.kaggle.com/competitions/ml2022spring-hw8
Deadline :
2022/05/13 23:59 (Beijing time), go to the list.
-
Scoring: Students improve the AUC score by improving the code , and the scores corresponding to the scoring are as follows.
-
QQ exchange group : 156013866
| Degree of difficulty | Fraction |
| simple | AUC >= 0.53150 |
| medium | AUC >= 0.73171 |
| strong | AUC >= 0.78215 |
| boss | AUC >= 0.82154 |
Assignment 8 teaching assistant code and data acquisition methods:
-
Follow the WeChat public account " Machine Learning Craftsman "
-
Background reply keywords: 202208