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Motif discovery for DNA sequences using multiobjective optimization and genetic programming.
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=============== = MotifGP 0.2 = =============== MotifGP is a de novo motif discovery tool for discriminatory network expression identification in ChIP-seq datasets. Original author: Manuel Belmadani mbelm006@uottawa.ca The project is documented by the following publications. Manuel Belmadani and Marcel Turcotte. MotifGP: Using multi-objective evolutionary computing for mining network expressions in DNA sequences. In IEEE International Conference on Computational Intelligence in Bioinformatics and Computational Biology (CIBCB 2016), Chiang Mai, Thailand, October, 5-7, 2016. https://doi.org/10.1109/CIBCB.2016.7758133 Manuel Belmadani. MotifGP: DNA motif discovery using multiobjective evolution. Master of computer science, University of Ottawa, School of Electrical Engineering and Computer Science, 2016. Available from University of Ottawa Research under: http://www.ruor.uottawa.ca/handle/10393/34213 Acknowledgements: MotifGP is using source code from these tools: -hypergeometric.py from the MEME Suite (License and copyright in source file). -altschulEriksonDinuclShuffle.py from Peter Clote - CLOTE Computational Biology LAB, http://clavius.bc.edu/~clotelab/RNAdinucleotideShuffle/ This software was also made using the DEAP - Fortin, F.-A., De Rainville, F.-M., Gardner, M.-A. G., Parizeau, M. & Gagné, C. DEAP: Evolutionary Algorithms Made Easy. J. Mach. Learn. Res. 13, 2171–2175 (2012). ======================================================================================= License: (see LICENSE.txt) ======================================================================================= Installation: (see INSTALL.txt) ======================================================================================= Examples: (see EXAMPLES.txt) ======================================================================================= Usage: motifgp.py [options] Options: -h, --help show this help message and exit -p TRAINING_PATH, --training=TRAINING_PATH Fasta file to use for training (input) sequence data -b BACKGROUND_PATH, --background=BACKGROUND_PATH [Optional] Fasta file to use for background (control) sequence data. If not provided, a the generated control sequences will be written to runtime_tmp/ -m MOO, --moo=MOO Multi-objective optimization [SPEA2, NSGA2, NSGAR, MOEAD]. NSGAR is the NSGA-II_R (NSGA-II Revised) algorithm improvement of NSGA2. -f FITNESS, --fitness=FITNESS Objective fitness function. Available objectives: D=Di scrimination,F=Fisher,I=ScipyFisher,O=OddsRatio,Q=Fals eDiscoveryRate,S=Support,R=ScipyOddsRatio. Each single character in the string represents an objective. Objectives are mapped by the configuration file at config/objectives. Default is 'DF' for [Discrimination,Fisher] (2-objectives). --cxpb=CXPB Probability [0.0 to 1.0] for a crossover during variation. Requires --mutpb to be set to (1.0-cxpb). Default is 0.7. --mutpb=MUTPB Probability [0.0 to 1.0] for a mutation during variation. Requires --cxpb to be set to (1.0-mutpb). Default is 0.3. --short=SHORT Stops reading in after <SHORT> input sequences. --popsize=POPSIZE Size of the population. --revcomp Compile regex with reverse complement --random-seed=RANDOM_SEED Random seed value to set for execution -n NGEN, --num-gen=NGEN Generation where runtime stops (even in the case of resumed checkpoints) --timelimit=TIMELIMIT Time limit on the GP loop execution. --matcher=MATCHER Use a different matcher. Options: 'grep', 'python'. 'grep' is faster on large datasets, while 'python' is a pure python version in case the system doesn't support grep. -o OUTPUT_PATH, --output=OUTPUT_PATH Output directory. Default is ./OUT/ -t TAG, --tag=TAG A tag for the output subdirectory. Use to describes the run and saves it in the tag's subdirectory in the output directory. default is 'default'. -i, --inspector Don't print any files. Can be useful with python -i (interactive mode). --hardmask Replace tandem repeats (lower-case typed nucleotides) by N -g GRAMMAR, --grammar=GRAMMAR Grammar for the STGP [min, iupac, full, ne]. Default is iupac. 'min' only uses nucleotides. 'iupac' is a network expression grammar. 'full' is a network expression grammar with additional regular expression tokens. 'ne' is like iupac, but built with string primitives instead of booleans. -e ERASE, --erase=ERASE Input .nef(t) file to delete from the dataset prior to execution. Used for sequential coverage. --backpad Pads background sequences with consecutive nucleotides (ie. AAAAAAAA,CCCCCCCC,GGGGGGGG,TTTTTTTT) of length 8 every set of 4 sequences. --bg-algo=BG_ALGO Shuffling algorithm for background. Default is 'dinuclShuffle', if no background dataset it provided. Currently, dinuclShuffle is the only implemented method. --ncpu=NCPU Number of CPUs to use when mapping evaluation of solutions. Use an integer, "auto" to automatically dertmine the maximum number. Default is no parallelism. --termination=TERMINATION Use automatic termination algorithm. User 'auto' to used the automatic termination algorithm for MOEAs. --hamming [Experimental] Generates statistics on the hamming distance from a template regex and hof candidates. --seeded-population [Experimental] Use population seeds -c CHECKPOINT_PATH, --checkpoint=CHECKPOINT_PATH [Temporarily disabled] Load a checkpoint at path. -q, --quiet [Unimplemented] don't print status messages to stdout Also consider looking at EXAMPLES.txt for basic examples of MotifGP usage.
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