markdown/overview.md

Backgroud

On Twitter, adding a '#' to the beging of a word or a phrases creats a hashtag. When people click on the hastags, you can jump into the a topic with a list of tweets related to this topic. Hashtags on Twitter helps people easily follow topics that they are interested.

The benefits of adding a hashtag to a tweet includes the follows:

1. Have a higher chance to show your post to other people, especially when you added a trending hashtag.
2. Get to know more friends that shares the same interest with you.
3. Make your the topic you are interested hotter and more people get to know it.

Problem

When people sending out a tweet and we want to add a hashtag to the tweets, Twitter does not give a good suggestions on the potentail hashtags they would like to add.

On webpage, Twitter do not provide any potential suggestions when you type "#".

On your phone, it will pump a list of hashtags. But the relevance between the list of hashtags and the tweets is not very high, and the hashtags are not sorted from trending hashtag.