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54 articles found matching your search request ‘c’…

  • …Gene Expression Programming" [Huang et al. Proceedings of the 2013 International Conference on … Applied Mathematics and Computational Methods in Engineering] sparkled a … series of ideas that can be implemented quite easily in GeneXproTools in … order to assist in the creation of better trading rules: Create built-in … math functions and linking functions of 2 arguments with 3 discrete outputs (-1, …

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  • …The pseudocode for the BUY-SELL-WAIT function as defined in the "Trading Strategy Mining … (0)        END IF It's a function of 2 arguments with 3 discrete outputs {-1, … 0, +1}. And here's the C++ code for the BSW function:         if (arg[0] > 0.0 && … -1.0;            else return 0.0; I tried this function in GeneXproTools with the Iris dataset and it … worked great, both as a linking function linking 2 expression trees and as part of the …

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  • …The creation of GEPSODY has been a dream of mine almost … blogging about them months or years after the fact is not just the same as when I was feeling all … the enthusiasm and excitement of each new idea, big and small. So the GEPSODY idea … continued to live only in my journal. Then Gepsoft … came along and I also started to keep a …

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  • …I promised you more 3-output classifier functions like the BUY-SELL-WAIT function of the … previous post. Well, designing 3-output classifier functions that worked well was not very … hard and I ended up choosing two more to add to the built-in math … functions of GeneXproTools. The criteria for their choice included principles such … as simplicity, symmetry, whether or not I could find a neutral gene for them and, last but …

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  • …One could easily go overboard in the design of all … these new classifier and mapper functions, as the combinations of all the different parameters one … can change are virtually endless. So it's a good idea … to have a fast and simple way of measuring and comparing their performance so that we can keep … when we put them to work together with other functions. So, in some kind of meta-analysis, I'm …

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  • …about failures. And I'm telling you about them because without them I would never have had the flash … of inspiration that was needed to come up with good 4-6 discrete output classifier … functions. I first started my exploration with functions of 2 arguments with 4-6 discrete outputs. … The reason for this was that I also wanted functions that worked well as linking functions in … GeneXproTools, which as you know is for now limited to functions of 2 …

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  • …Just to recap, we are still trying to design 3-6 output … classifier functions that work well both at the root level of a … single tree and, if possible, as linking functions of 2 arguments, so that they can be used to … create sophisticated trading rules as outlined in the post "New … Project: Multi-class Classification & Trading Strategies". The argmin and …

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  • …Sometimes the inspiration comes from the least expected places. I had been … working on the Logic Synthesis documentation, updating the tutorials with new images … and content. For a couple of weeks I lived and breathed Boolean logic. … And in those situations I always end up discovering new interesting things (even if they are … new only to me). I was still under the influence of logic when I started working on this new …

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  • …Let's start our exploration of the new mapper functions with the 4-output mapper functions of 2, 3, … and 4 arguments. In GeneXproTools these functions are represented by Map4A, Map4B, and Map4C, … at the end represents the number of arguments (A corresponds to 2, B to 3, and C to 4). The Map4B … and Map4C functions were the very first that I designed and … tested (remember, I was trying to create functions with 3-4 discrete outputs that matched the …

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  • …The series of 5-output mapper functions explores the same principles of the 4-output … mappers, with the difference that we are now defining 5 intervals instead of … 4. And what's interesting is how well these functions scale up (97% hits for Map5A, 98% for Map5B, … 99% for Map5C against 96% for the argmax), behaving very … similarly to their counterparts of 4 outputs. Even with just 2 …

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