Hi, I am working on the zombie lab, having gone through all the previous steps and it looks correct, but I met issues when doing the fine tuning, the model doesn’t converge by trying several times, one result is as attached, I am unable to find the reason, can someone help me? thank you! [Screens…

Thank you for your help! I checked the config path and checkpoint path, added ‘/content‘ before ‘/model/…’ , the only difference, but still got the same output in 6.1 as :tensorflow.python.checkpoint.checkpoint.Checkpoint # Expected output: # tensorflow.python.training.tracking.util.Checkpoint A…

hi @Florawang I have gone through your sent codes but you have only sent a part of the section assignment, I have replied in DM to send all exercise code screenshots. Now coming to what you sent till now, most of the codes are right but some codes placement especially where one calculate loss is p…

hi @Florawang after reviewing you complete assignment, I happy to inform that most of your codes were correct except please make some.changes in where it mentions modify the num_classes from default, you have used the numerical value instead used the recall variable. Also in your case for pipeline…

Hi DP, Thank you very much for your suggestion. I have checked each item as you mentioned: modify the num_classes from default, done. pipeline and checkpoint path, I used the same path started with “/content/..“ while creating dummy images, please remove the datatype mention tf.float32, done rest…

I want you to make one more change where you wrote the fine tune list to select the prediction layer, use detection_model.trainable_variables to enlist the layers. I used 4 layers and remember indexing is 0,1, 2, 3 Also I forgot to mention somewhere you have mentioned add_summaries as True that al…

Hi, detection_model.trainable_variables should be correct, since the test code passed. But I changed it as you said with append for the first 4 layers. And the issue with the type is same as above. [Screenshot 2025-09-15 at 11.48.14] add_summaries=True has been removed. And I restarted and run …

please DM me how you did the correction for the list and the total loss calculation

C3W2, zombie detector doesn't converge

Course Q&A TensorFlow: Advanced Techniques Specialization Advanced Computer Vision with TensorFlow

Deepti_Prasad September 12, 2025, 6:14pm 2

hi @Florawang
this topic thread should help you debug your codes.

Solution

Check your defining path and checkpoint path.

Let me know if issue still persist

Topic		Replies	Views
C3W2 Zombie: Not Getting Good Results Advanced Computer Vision with TensorFlow week-module-2	2	79	September 6, 2024
C3W2 Zombie Detector Loss Output Not as Expected Advanced Computer Vision with TensorFlow week-module-2	5	76	December 8, 2024
C3W2 Zombie Detector Advanced Computer Vision with TensorFlow	2	74	December 2, 2024
Training not converging to zero on the Zombie Detector Advanced Computer Vision with TensorFlow week-module-2	10	94	December 5, 2024
Stucked in zombie detector : fine tuning does not work Advanced Computer Vision with TensorFlow week-module-2	2	639	August 19, 2022

C3W2, zombie detector doesn't converge

Related topics