Never mind. I found the reason why those files are not consistent with each other. The .event file created inside estimate-model() (and later used by tadm to create .weights file) is overwritten inside learner-rank-items(). The no. of items used to write the file inside those two methods are not same. Hence, the later version of the file contains different no. of unique feature codes than that of the prior one. Best, Faisal <div class="gmail_quote">On Mon, Apr 27, 2009 at 12:54 AM, Faisal Chowdhury <<a href="mailto:chowd@coli.uni-sb.de">chowd@coli.uni-sb.de</a>> wrote: <blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;"> Hi, I found a mysterious thing in .model.<user>.<pid>.events and .model.<user>.<pid>.weights files while running the grid script in LOGON. The no. of weights in .weights file is bigger than the highest feature code inside the .events file. I did some experiments of TADM with some dummy data and found that the no. weights predicted by TADM is equal to the no. of unique features indexes, i.e., the no. of weights should be the highest feature code + 1. Could you please explian why .events and .weights files are not consistent on this? Best, Faisal </blockquote></div>