diff options
Diffstat (limited to 'training/mira/mira.py')
| -rwxr-xr-x | training/mira/mira.py | 98 |
1 files changed, 50 insertions, 48 deletions
diff --git a/training/mira/mira.py b/training/mira/mira.py index 29c51e1d..7b2d06a3 100755 --- a/training/mira/mira.py +++ b/training/mira/mira.py @@ -4,8 +4,17 @@ import subprocess, shlex, glob import argparse import logging import random, time -import cdec.score import gzip, itertools +try: + import cdec.score +except ImportError: + sys.stderr.write('Could not import pycdec, see cdec/python/README.md for details\n') + sys.exit(1) +have_mpl = True +try: + import matplotlib.pyplot as plt +except ImportError: + have_mpl = False #mira run script #requires pycdec to be built, since it is used for scoring hypothesis @@ -16,17 +25,17 @@ import gzip, itertools #scoring function using pycdec scoring def fast_score(hyps, refs, metric): scorer = cdec.score.Scorer(metric) - logging.info('loaded {0} references for scoring with {1}\n'.format( + logging.info('loaded {0} references for scoring with {1}'.format( len(refs), metric)) if metric=='BLEU': logging.warning('BLEU is ambiguous, assuming IBM_BLEU\n') metric = 'IBM_BLEU' elif metric=='COMBI': logging.warning('COMBI metric is no longer supported, switching to ' - 'COMB:TER=-0.5;BLEU=0.5\n') + 'COMB:TER=-0.5;BLEU=0.5') metric = 'COMB:TER=-0.5;BLEU=0.5' stats = sum(scorer(r).evaluate(h) for h,r in itertools.izip(hyps,refs)) - logging.info(stats.detail+'\n') + logging.info('Score={} ({})'.format(stats.score, stats.detail)) return stats.score #create new parallel input file in output directory in sgml format @@ -71,6 +80,8 @@ def main(): #set logging to write all info messages to stderr logging.basicConfig(level=logging.INFO) script_dir = os.path.dirname(os.path.abspath(sys.argv[0])) + if not have_mpl: + logging.warning('Failed to import matplotlib, graphs will not be generated.') parser= argparse.ArgumentParser( formatter_class=argparse.ArgumentDefaultsHelpFormatter) @@ -181,10 +192,11 @@ def main(): dev_size = enseg(args.devset, newdev, args.grammar_prefix) args.devset = newdev - write_config(args) + log_config(args) args.weights, hope_best_fear = optimize(args, script_dir, dev_size) - graph_file = graph(args.output_dir, hope_best_fear, args.metric) + graph_file = '' + if have_mpl: graph_file = graph(args.output_dir, hope_best_fear, args.metric) dev_results, dev_bleu = evaluate(args.devset, args.weights, args.config, script_dir, args.output_dir) @@ -205,17 +217,12 @@ def main(): if graph_file: logging.info('A graph of the best/hope/fear scores over the iterations ' - 'has been saved to {}\n'.format(graph_file)) + 'has been saved to {}'.format(graph_file)) print 'final weights:\n{}\n'.format(args.weights) #graph of hope/best/fear metric values across all iterations def graph(output_dir, hope_best_fear, metric): - try: - import matplotlib.pyplot as plt - except ImportError: - logging.error('Error importing matplotlib. Graphing disabled.\n') - return '' max_y = float(max(hope_best_fear['best']))*1.5 plt.plot(hope_best_fear['best'], label='best') plt.plot(hope_best_fear['hope'], label='hope') @@ -308,6 +315,7 @@ def optimize(args, script_dir, dev_size): decoder = script_dir+'/kbest_cut_mira' (source, refs) = split_devset(args.devset, args.output_dir) port = random.randint(15000,50000) + logging.info('using port {}'.format(port)) num_features = 0 last_p_score = 0 best_score_iter = -1 @@ -316,8 +324,8 @@ def optimize(args, script_dir, dev_size): hope_best_fear = {'hope':[],'best':[],'fear':[]} #main optimization loop while i<args.max_iterations: - logging.info('\n\nITERATION {}\n========\n'.format(i)) - logging.info('using port {}\n'.format(port)) + logging.info('======= STARTING ITERATION {} ======='.format(i)) + logging.info('Starting at {}'.format(time.asctime())) #iteration specific files runfile = args.output_dir+'/run.raw.'+str(i) @@ -327,10 +335,8 @@ def optimize(args, script_dir, dev_size): weightdir = args.output_dir+'/weights.pass'+str(i) os.mkdir(logdir) os.mkdir(weightdir) - - logging.info('RUNNING DECODER AT {}'.format(time.asctime())) weightsfile = args.output_dir+'/weights.'+str(i) - logging.info('ITER {}\n'.format(i)) + logging.info(' log directory={}'.format(logdir)) curr_pass = '0{}'.format(i) decoder_cmd = ('{0} -c {1} -w {2} -r{3} -m {4} -s {5} -b {6} -k {7} -o {8}' ' -p {9} -O {10} -D {11} -h {12} -f {13} -C {14}').format( @@ -350,7 +356,7 @@ def optimize(args, script_dir, dev_size): parallelize, logdir, args.jobs) cmd = parallel_cmd + ' ' + decoder_cmd - logging.info('COMMAND: \n{}\n'.format(cmd)) + logging.info('OPTIMIZATION COMMAND: {}'.format(cmd)) dlog = open(decoderlog,'w') runf = open(runfile,'w') @@ -365,27 +371,26 @@ def optimize(args, script_dir, dev_size): p1.stdout.close() if exit_code: - logging.error('Failed with exit code {}\n'.format(exit_code)) + logging.error('Failed with exit code {}'.format(exit_code)) sys.exit(exit_code) try: f = open(runfile) except IOError, msg: - logging.error('Unable to open {}\n'.format(runfile)) + logging.error('Unable to open {}'.format(runfile)) sys.exit() num_topbest = sum(1 for line in f) f.close() if num_topbest == dev_size: break - logging.warning('Incorrect number of top best. ' - 'Waiting for distributed filesystem and retrying.') + logging.warning('Incorrect number of top best. Sleeping for 10 seconds and retrying...') time.sleep(10) retries += 1 if dev_size != num_topbest: logging.error("Dev set contains "+dev_size+" sentences, but we don't " "have topbest for all of these. Decoder failure? " - " Check "+decoderlog+'\n') + " Check "+decoderlog) sys.exit() dlog.close() runf.close() @@ -427,7 +432,7 @@ def optimize(args, script_dir, dev_size): hope_best_fear['hope'].append(dec_score) hope_best_fear['best'].append(dec_score_h) hope_best_fear['fear'].append(dec_score_f) - logging.info('DECODER SCORE: {0} HOPE: {1} FEAR: {2}\n'.format( + logging.info('DECODER SCORE: {0} HOPE: {1} FEAR: {2}'.format( dec_score, dec_score_h, dec_score_f)) if dec_score > best_score: best_score_iter = i @@ -436,12 +441,13 @@ def optimize(args, script_dir, dev_size): new_weights_file = '{}/weights.{}'.format(args.output_dir, i+1) last_weights_file = '{}/weights.{}'.format(args.output_dir, i) i += 1 - weight_files = weightdir+'/weights.mira-pass*.*[0-9].gz' + weight_files = args.output_dir+'/weights.pass*/weights.mira-pass*[0-9].gz' average_weights(new_weights_file, weight_files) - logging.info('\nBEST ITER: {} :: {}\n\n'.format( + logging.info('BEST ITERATION: {} (SCORE={})'.format( best_score_iter, best_score)) weights_final = args.output_dir+'/weights.final' + logging.info('WEIGHTS FILE: {}'.format(weights_final)) shutil.copy(last_weights_file, weights_final) average_final_weights(args.output_dir) @@ -481,15 +487,15 @@ def gzip_file(filename): #average the weights for a given pass def average_weights(new_weights, weight_files): - logging.info('AVERAGE {} {}\n'.format(new_weights, weight_files)) + logging.info('AVERAGE {} {}'.format(new_weights, weight_files)) feature_weights = {} total_mult = 0.0 for path in glob.glob(weight_files): score = gzip.open(path) mult = 0 - logging.info('FILE {}\n'.format(path)) + logging.info(' FILE {}'.format(path)) msg, ran, mult = score.readline().strip().split(' ||| ') - logging.info('Processing {} {}'.format(ran, mult)) + logging.info(' Processing {} {}'.format(ran, mult)) for line in score: f,w = line.split(' ',1) if f in feature_weights: @@ -500,34 +506,30 @@ def average_weights(new_weights, weight_files): score.close() #write new weights to outfile + logging.info('Writing averaged weights to {}'.format(new_weights)) out = open(new_weights, 'w') for f in iter(feature_weights): avg = feature_weights[f]/total_mult - logging.info('{} {} {} ||| Printing {} {}\n'.format(f,feature_weights[f], - total_mult, f, avg)) out.write('{} {}\n'.format(f,avg)) -def write_config(args): - config = ('\n' - 'DECODER: ' - '/usr0/home/eschling/cdec/training/mira/kbest_cut_mira\n' - 'INI FILE: '+args.config+'\n' - 'WORKING DIRECTORY: '+args.output_dir+'\n' - 'DEVSET: '+args.devset+'\n' - 'EVAL METRIC: '+args.metric+'\n' - 'MAX ITERATIONS: '+str(args.max_iterations)+'\n' - 'DECODE NODES: '+str(args.jobs)+'\n' - 'INITIAL WEIGHTS: '+args.weights+'\n') +def log_config(args): + logging.info('WORKING DIRECTORY={}'.format(args.output_dir)) + logging.info('INI FILE={}'.format(args.config)) + logging.info('DEVSET={}'.format(args.devset)) + logging.info('EVAL METRIC={}'.format(args.metric)) + logging.info('MAX ITERATIONS={}'.format(args.max_iterations)) + logging.info('PARALLEL JOBS={}'.format(args.jobs)) + logging.info('INITIAL WEIGHTS={}'.format(args.weights)) if args.grammar_prefix: - config += 'GRAMMAR PREFIX: '+str(args.grammar_prefix)+'\n' + logging.info('GRAMMAR PREFIX={}'.format(args.grammar_prefix)) if args.test: - config += 'TEST SET: '+args.test+'\n' + logging.info('TEST SET={}'.format(args.test)) + else: + logging.info('TEST SET=none specified') if args.test_config: - config += 'TEST CONFIG: '+args.test_config+'\n' + logging.info('TEST CONFIG={}'.format(args.test_config)) if args.email: - config += 'EMAIL: '+args.email+'\n' - - logging.info(config) + logging.info('EMAIL={}'.format(args.email)) if __name__=='__main__': main() |