The task is classify some chat messages. My question is how to set the annotation scheme. I can think of 2 couple of options -
Just annotate each chat message. The problem is that we may lose the context. E.g. the the current chat message could be an answer to the previous message.
Annotate a chat message with n messages before and n messages after. The problem with such approach is that that we only include context which is irrelevant to the current chat message. The context switches more often in a chat then in an email or a document.
Is there a preferred way between the option 1 and option 2. Is there any other options?