How to nudge a graph to the right without altering the total surface it covers

Question

I have a document collection with size 1000, they all have 1 feature, a vector with 5 elements. The total sum of the 5 elements equals 100. So for example I can have a document with feature: [10,15,40,20,15].

Each vector element equals a sentiment, ranging from very negative to very positive. The results I get for the 1000 text documents come out a little on the negative side, so I am trying to nudge them all a little to the right without altering the total sum.

For example [10,15,40,20,15] should, after applying the formula, result to [7,13,32,40,8]. How can I manage this?

Thanks in advance!

Answer 1

As I understand, you want the first (left) elements of that vector to get smaller, and the right part to get bigger, right? This can be accomplished by adding something like [-10,-5,0,5,10] to each vector.

Answer 2

If the issue is that the corpus is genuinely more negative than you'd like it to be, then how about pre-prending to each document, just before the analysis:

I am a happy bunny!

And if that isn't enough, then also add in:

The sun is shining beautifully in Happy Bunny Land today!!

If the issue is that your analysis is producing a more negative result than what you believe is the correct answer, then fiddle with the weights (if using a weighted approach); if not using a weighted word approach, and you have a list of positive and negative words, then review those lists for the document context and either remove some negative words, or add in some more words to the positive list.