System, Methods, and User Interface for Automated Job Search

System, methods, and user interface for searching documents related to resumes or job descriptions as a special type of unstructured data are disclosed. The methods automatically transform a source document such as a resume or job description into a search query, and retrieve target documents matching the most important contents in the source document without requiring the user to open and read the source document and write a query. The methods identify the most representative attributes in such documents based on grammatical, semantic, and contextual information contained in the documents for producing more relevant search results than manually-constructed search queries.