What is the best possible way to integrate user post (text/media) without using hashtag (ex: Twitter) or tagging (ex: Quora/SE). I am building a social network site and I am confused with the integration of use generated post; it becomes comparatively easy to bring worldwide content searchable using hashtag or tagging but is there any other alternate?
Unless you manage to create a new way of accomplishing this that materially improves some aspect of tagging and searching user generated content, I would advise you not to try and reinvent the wheel.
And, if I managed to create this new pattern, I certainly wouldn't be giving it away on StackExchange ;).
Natural Language Processing comes to mind. I read this primer article on Medium. Hope it is useful. https://medium.com/@mattkiser/getting-started-with-natural-language-processing-54c7c90170e0