Method and system to infer seniority level of a social network member is provided. The system includes a transition data extractor, a token extractor, a transition data analyzer, and a storing module. The transition data extractor extracts transition data from member profiles maintained in an online social network system. The token extractor extracts a plurality of tokens from title strings in the transition data. The transition data analyzer analyzes the transition data to generate a weight for each token in the plurality of tokens. A weight for a token in the plurality of tokens indicates a contribution of the token to a seniority rank of a title string that includes the token. The storing module stores the plurality of tokens and their associated weights in a database.
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