Support different scoring algorithms

[peterwoodworth]

Description

Currently, the scoring algorithm gives the first word in the title a score of 1, which decreases logarithmically according to the formula 2/(1+n)

The body scores each word the same, but this score is configurable

Use Case

Logarithmic scoring for titles might not be ideal for everyone - especially users who have the action configured such that ties will frequently (intentionally) happen.

I'm not sure if anyone would want logarithmic scoring for the body - but that could be supported pretty easily

Any proposals for alternate methods of scoring would be much appreciated

Proposed Solution

This is where area scoring is done:

aws-issue-triage-manager/src/issue.ts

Lines 44 to 62 in 3df9fb5

	const weightedTitle: (n: number) => number = (n: number) => {
	return (2/(1+n));
	}
	// For each word in the title, check if it matches any keywords. If it does, add decreasing score based on inverse function to the area keyword is in.
	if(this.titleIssueWords) {
	this.titleIssueWords.forEach(content => {
	potentialAreas = this.scoreArea(content, potentialAreas, titleValue);
	++x;
	titleValue = weightedTitle(x);
	});
	}
	// Add static value to area keyword is in if keyword is found in body
	if(this.bodyIssueWords) {
	this.bodyIssueWords.forEach(content => {
	potentialAreas = this.scoreArea(content, potentialAreas, this.bodyValue);
	});
	}

I can think of a few ways to potentially do this, will comment later

Other Info

No response

Acknowledge

• I may be able to implement this feature request
• This feature might incur a breaking change