Merge both AND and OR results, AND first

Perhaps, what I’m trying to do is an OR search with a very high weight for the results matching all terms. Is this possible?

What you’re asking for is pretty much what the OR search aims to do. It’s not strict, though, so if some post seems to be valuable even if it doesn’t have all the search terms, it will be high on the list, but most of the time if all search terms are good search terms, AND matches will be on the top.

If you really want to push it further, perhaps something like this:

add_filter('relevanssi_match', 'rlv_and_boost');
function rlv_and_boost($match) {
	global $rlv_and_database;
	if (!isset($rlv_and_database[$match->doc])) {
		$rlv_and_database[$match->doc] = true;
	}
	else {
		$match->weight = $match->weight * 2;
	}
	return $match;
}

With this function in place, posts that match more than one search term will get a bonus. The more search terms the post matches, the bigger the bonus. Does that work for you?

This is great, Mikko, it’s exactly what I’m looking for. Thank you!

Mikko –

I apologize for hijacking this thread. However…

This function seems like it should be part of at least your premium Relevanssi version. These type of results seem to be obvious and likely what most people are really after.

Perhaps add this as an option?

Thanks. And by the way, the list of features and fixes in 3.5 are superb!

Jeff

Maybe, maybe.

I’m now uising this script but now I have this concern :

How can the search give less importance to the number of time it finds a word in the same document. For my use, i would like to tweak the relevance of the words so i would see results with all searched word on top, no matter if other documents contains for example 15 times the searched words.

One of my currently search result is as follow:
i’m searching for 3 words. The first result contains all of them many times each, the next 2 results contain only 2 of them, many times and the next result contains also all on them but less frquent. I would like to see this last doc appear before the ones with only but frequent found words. I want to give less importance to the count of individually found words but give much to the one with all found words even if they are found once for earch in the doc. Is it possible.

Jeanfre777, increase the weight multiplier in the script. It’s now 2, make it 20 and you should see an improvement.

I try your suggestion to change the multiplier to 20, 100, and over, re-index and no change. I still have documents with not all 3 words before one with 3 words found.

Thanks

I suppose that’s possible in some scenarios, depending on the words (and if some of the three words are stop words, for example). I’d need to know the exact weights and relevancy scores of the posts to tell you why that’s happening.

None of the 3 searched words are in the stop words list. Even if I set all the weights to 0 for titles, comments, tags and categories, and the indexing to only the post content, some posts without the 3 words come before some with 3 words found.

Sorry, I can’t help you with this without actually seeing the site and analyzing it more closely, and that’s enough work that I can only do that with paying customers.