Yes, it's pointless to have two tags referring to the same thing. Since deepqa had three questions and watson had four (and all but one DeepQA question had the Watson tag already), I manually merged the tags together by removing deepqa.
One could make the argument that DeepQA is the research project while Watson is the product, but all of the questions ...
I consolidated the tags to quantum-computing because this is not an applied hardware and programming site.
A tag synonym isn't really appropriate here. Synonyms were intended to link two completely separate words meaning essentially the same thing (think 'car' vs 'auto'). For simple variations on the same word, there's no need to bulk up the tag listings ...
Yes, tags with the same meaning should indeed be synonyms. The requested synonym is now in place; cnn was also merged into convolutional-neural-networks to update the eight existing cnn questions and deduplicate the tags on the two questions that had both tags.
They both mean the same thing, so we should have only one tag. They should be synonymized, because if you type cnn the tag convolutional-neural-networks does not come up as a suggestion, and vice versa.
I would say yes. I don't know many people who use the term "deep network" like that. You may hear "deep neural network", but that's still basically synonymous with "deep learning" as far as I can tell.
I would be careful to merge the two together. deepqa is very much just that - a deep learning approach to questions and answers. This covers NLP, hypothesis formation, candidate answer generation, and answer selection from the candidates. It is fully limited to that domain.
These pages show what I'm getting at:
Watson is the name of the computer, and DeepQA is the name of the technology and software. They both correlated, but Watson sounds like more specific, but on the other hand there are no any known computers which are using DeepQA which aren't called Watson.
We do not know if there are any other computers which uses DeepQA technology, but not related to ...
If deep-learning is preferred, then deep-network should be set up as a tag synonym for it, that way if anyone tries to use it, it gets mapped to the preferred name. We need someone with 1250 reputation to do that.