Hello and thank you for your answer.  So, I would like to know: 1 - If we decided to change (modify) the Algorithm of displays (ranking) of the results provided by YIOOP, how are we going to proceed ??? Which YIOOP ​​Script File represents the Result Ranking Algorithm ??? Which Script File can we modify if we decide to change the ranking algorithm of Results to replace by our own Algorithm ??? 2 - For one of your previous answer regarding my question why some images did not display (do not appear and are completely blank) in Image Search Results when searching for eg Google on Yioop (https://www.yioop.com/s/images?s=images&its=1412956124&q=google), you said that "the detection of non-useful images would require additional programming." So, we want to know if you can help us in that sense to program to detect and not display (cancel the display) non-useful images ??? 3 - On which file of the YIOOP ​​Script can we do this additional Programming to detect and cancel the display of the non-useful Images so that it does not appear any more in the search results ??? Thank you.

-- How to modify the Results Display Algorithm and Program the non-display of non-useful images ???

# The article [[https://www.seekquarry.com/p/Ranking|Yioop Search Engine Ranking Mechanisms]] describes how the code ranks search results as well as says some of the files responsible for ranking. # The files responsible for processing downloaded images are in src/library/processors. You want to look at files like: PngProcessor.php, JpgProcessor.php, GifProcessor.php, etc. #You could probably add code to these to detect if the downloaded image was all one color, got downloaded, but was messed up, etc.