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Hi guys,<br><br>I'm trying to improve the search results of our collection by tuning the parameters in the BM25 weighting schema. Since our collection includes several databases, such as for pictures, websites, etc., I would like to use different values of the same schema to calculate the weights. Yet, rebuilding each time after the change was done to the head file seems not an optimal approach and costs too much time. Then I'm wondering that whether there's some way to change the values without rebuilding. Also, I'm considering applying the BM25 schema with different parameters values according to a specific query, or according to the kind of databases it searches. Any suggestion is welcomed and appreciated!<br><br>Thanks,<br>Peyton <br> </body>
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