[D] 3 years doing ML, no success yet. Is it common?

I'm working in ML research for 1.5 years now, more specifically medical imaging and previously as a DL Engineer for building a facial recognition pipeline. Despite a good understanding and all my focus I'm yet to make a good enough system or model for all many use cases I worked on.

From last 4 months I'm exploring 'learning from noisy label' I worked on 3 techniques, spent considerate time integrating target loaders but results were poor, even worse than baseline. …

building cases engineer facial recognition focus good imaging machinelearning medical medical imaging ml research pipeline recognition research success understanding use cases