As per the Alberta express entry stream web page (https://www.alberta.ca/ainp-alberta-express-entry-stream-eligibility.aspx), they mention "Factors that increase your chances" and followings:
- you have an Alberta job offer and/or work experience
- you are a graduate of a Canadian post-secondary institution
- you have a parent, child, brother and/or sister who is a permanent resident living in Alberta, or a Canadian citizen living in Alberta
