I'm starting off my undergraduate research on text classification even though I'm still considered new to this topic. I've collected more than 20K data from Twitter. I've been trying to label the data into 3 sentiments, positive, negative, and neutral. But, I oftentimes find it difficult to determine whether a tweet is categorized as positive, negative, or neutral due to my lack of knowledge in that field.

My supervisor has someone with a psychology background that can help me labeling the data instead of linguistics. I'm aware that sentiment analysis is a part of the natural language processing task which makes more sense if I ask for help from linguistics, but at the same time sentiment, in general, is also studied in psychology as I read more papers. Does anyone have any advice? Thank you in advance!


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