Question: What is the additive modification to the objective function?
Answer: The cost function for any one of the words of concept word-groups is modified by the introduction of an additive term to the cost function. . Each embedding vector dimension is first associated with a concept. For a word belonging to any one of the word-groups representing these concepts, the modified cost term favors an increase for the value of this word's embedding vector dimension corresponding to the concept that the particular word belongs to,
Alternative answer: An additive term added to the cost function for any one of the words of concept word-groups