Beispiel #1
0
        tt = []
        pt = []
        for fn in files:
#            print "Processing:", fn
            doc = xml.dom.minidom.parse(fn)
            turns = doc.getElementsByTagName("turn")
            
            for turn in turns:
                recs_list = turn.getElementsByTagName("rec")
                trans_list = turn.getElementsByTagName("asr_transcription")

                if trans_list:
                    trans = trans_list[-1]

                    t = various.get_text_from_xml_node(trans)
                    t = normalise_text(t)

                    if exclude_lm(t):
                        continue

                    # The silence does not have a label in the language model.
                    t = t.replace('_SIL_', '')

                    tt.append(t)

                    wav_file = recs_list[0].getAttribute('fname')
                    wav_path = os.path.realpath(os.path.join(os.path.dirname(fn), wav_file))

                    pt.append((wav_path, t))

        random.seed(10)
Beispiel #2
0
        tt = []
        pt = []
        for fn in files:
#            print "Processing:", fn
            doc = xml.dom.minidom.parse(fn)
            turns = doc.getElementsByTagName("turn")
            
            for turn in turns:
                recs_list = turn.getElementsByTagName("rec")
                trans_list = turn.getElementsByTagName("asr_transcription")

                if trans_list:
                    trans = trans_list[-1]

                    t = various.get_text_from_xml_node(trans)
                    t = normalise_text(t)

                    if exclude_lm(t):
                        continue

                    # The silence does not have a label in the language model.
                    t = t.replace('_SIL_', '')

                    tt.append(t)

                    wav_file = recs_list[0].getAttribute('fname')
                    wav_path = os.path.realpath(os.path.join(os.path.dirname(fn), wav_file))

                    pt.append((wav_path, t))

        random.seed(10)
Beispiel #3
0
def process_call_log(fn):
    name = multiprocessing.current_process().name
    asr = []
    nbl = []
    sem = []
    trn = []
    trn_hdc_sem = []
    fcount = 0
    tcount = 0

    f_dir = os.path.dirname(fn)
    print "Process name:", name
    print "File #", fcount
    fcount += 1
    print "Processing:", fn
    doc = xml.dom.minidom.parse(fn)
    turns = doc.getElementsByTagName("turn")
    for i, turn in enumerate(turns):
        if turn.getAttribute('speaker') != 'user':
            continue

        recs = turn.getElementsByTagName("rec")
        trans = turn.getElementsByTagName("asr_transcription")
        asrs = turn.getElementsByTagName("asr")

        if len(recs) != 1:
            print "Skipping a turn {turn} in file: {fn} - recs: {recs}".format(
                turn=i, fn=fn, recs=len(recs))
            continue

        if len(asrs) == 0 and (i + 1) < len(turns):
            next_asrs = turns[i + 1].getElementsByTagName("asr")
            if len(next_asrs) != 2:
                print "Skipping a turn {turn} in file: {fn} - asrs: {asrs} - next_asrs: {next_asrs}".format(
                    turn=i, fn=fn, asrs=len(asrs), next_asrs=len(next_asrs))
                continue
            print "Recovered from missing ASR output by using a delayed ASR output from the following turn of turn {turn}. File: {fn} - next_asrs: {asrs}".format(
                turn=i, fn=fn, asrs=len(next_asrs))
            hyps = next_asrs[0].getElementsByTagName("hypothesis")
        elif len(asrs) == 1:
            hyps = asrs[0].getElementsByTagName("hypothesis")
        elif len(asrs) == 2:
            print "Recovered from EXTRA ASR outputs by using a the last ASR output from the turn. File: {fn} - asrs: {asrs}".format(
                fn=fn, asrs=len(asrs))
            hyps = asrs[-1].getElementsByTagName("hypothesis")
        else:
            print "Skipping a turn {turn} in file {fn} - asrs: {asrs}".format(
                turn=i, fn=fn, asrs=len(asrs))
            continue

        if len(trans) == 0:
            print "Skipping a turn in {fn} - trans: {trans}".format(
                fn=fn, trans=len(trans))
            continue

        wav_key = recs[0].getAttribute('fname')
        wav_path = os.path.join(f_dir, wav_key)

        # FIXME: Check whether the last transcription is really the best! FJ
        t = various.get_text_from_xml_node(trans[-1])
        t = normalise_text(t)

        if '--asr-log' not in sys.argv:
            asr_rec_nbl = asr_rec.rec_wav_file(wav_path)
            a = unicode(asr_rec_nbl.get_best())
        else:
            a = various.get_text_from_xml_node(hyps[0])
            a = normalise_semi_words(a)

        if exclude_slu(t) or 'DOM Element:' in a:
            print "Skipping transcription:", unicode(t)
            print "Skipping ASR output:   ", unicode(a)
            continue

        # The silence does not have a label in the language model.
        t = t.replace('_SIL_', '')

        trn.append((wav_key, t))

        print
        print "Transcritpiton #", tcount
        tcount += 1
        print "Parsing transcription:", unicode(t)
        print "                  ASR:", unicode(a)

        # HDC SLU on transcription
        s = slu.parse_1_best({'utt': Utterance(t)}).get_best_da()
        trn_hdc_sem.append((wav_key, s))

        # 1 best ASR
        asr.append((wav_key, a))

        # N best ASR
        n = UtteranceNBList()
        if '--asr-log' not in sys.argv:
            n = asr_rec_nbl

            print 'ASR RECOGNITION NBLIST\n', unicode(n)
        else:
            for h in hyps:
                txt = various.get_text_from_xml_node(h)
                txt = normalise_semi_words(txt)

                n.add(abs(float(h.getAttribute('p'))), Utterance(txt))

        n.merge()
        n.normalise()

        nbl.append((wav_key, n.serialise()))

        # there is no manual semantics in the transcriptions yet
        sem.append((wav_key, None))

    return asr, nbl, sem, trn, trn_hdc_sem, fcount, tcount
Beispiel #4
0
def extract_from_xml(indomain_data_dir, outdir, cfg):
    glob = 'asr_transcribed.xml'
    asr = asr_factory(cfg)

    print 'Collecting files under %s with glob %s' % (indomain_data_dir, glob)
    files = []
    for root, dirnames, filenames in os.walk(indomain_data_dir, followlinks=True):
        for filename in fnmatch.filter(filenames, glob):
            files.append(os.path.join(root, filename))

    # DEBUG example
    # files = [
    #     '/ha/projects/vystadial/data/call-logs/2013-05-30-alex-aotb-prototype/part1/2013-06-27-09-33-25.116055-CEST-00420221914256/asr_transcribed.xml']

    try:
        trn, dec, dec_len, wav_len = [], [], [], []
        for fn in files:
            doc = xml.dom.minidom.parse(fn)
            turns = doc.getElementsByTagName("turn")
            f_dir = os.path.dirname(fn)

            for turn in turns:
                if turn.getAttribute('speaker') != 'user':
                    continue

                recs = turn.getElementsByTagName("rec")
                trans = turn.getElementsByTagName("asr_transcription")

                if len(recs) != 1:
                    print "Skipping a turn {turn} in file: {fn} - recs: {recs}".format(turn=turn.getAttribute('turn_number'), fn=fn, recs=len(recs))
                    continue

                if len(trans) == 0:
                    print "Skipping a turn in {fn} - trans: {trans}".format(fn=fn, trans=len(trans))
                    continue

                wav_file = recs[0].getAttribute('fname')
                # FIXME: Check whether the last transcription is really the best! FJ
                t = various.get_text_from_xml_node(trans[-1])
                t = normalise_text(t)

                if exclude_lm(t):
                    continue

                # TODO is it still valid? OP
                # The silence does not have a label in the language model.
                t = t.replace('_SIL_', '')
                trn.append((wav_file, t))

                wav_path = os.path.join(f_dir, wav_file)
                best, dec_dur, fw_dur, wav_dur = decode_info(asr, cfg, wav_path, t)
                dec.append((wav_file, best))
                wav_len.append((wav_file, wav_dur))
                dec_len.append((wav_file, dec_dur))

    except Exception as e:
        print 'PARTIAL RESULTS were saved to %s' % outdir
        print e
        raise e
    finally:
        trn_dict = dict(trn)
        dec_dict = dict(dec)
        wavlen_dict = dict(wav_len)
        declen_dict = dict(dec_len)
        compute_save_stat(outdir, trn_dict, dec_dict, wavlen_dict, declen_dict)
Beispiel #5
0
def main():
    cldb = CategoryLabelDatabase('../data/database.py')
    preprocessing = PTIENSLUPreprocessing(cldb)
    slu = PTIENHDCSLU(preprocessing, cfg={'SLU': {PTIENHDCSLU: {'utt2da': as_project_path("applications/PublicTransportInfoEN/data/utt2da_dict.txt")}}})
    cfg = Config.load_configs(['../kaldi.cfg',], use_default=True)
    asr_rec = asr_factory(cfg)                    

    fn_uniq_trn = 'uniq.trn'
    fn_uniq_trn_hdc_sem = 'uniq.trn.hdc.sem'
    fn_uniq_trn_sem = 'uniq.trn.sem'

    fn_all_sem = 'all.sem'
    fn_all_trn = 'all.trn'
    fn_all_trn_hdc_sem = 'all.trn.hdc.sem'
    fn_all_asr = 'all.asr'
    fn_all_asr_hdc_sem = 'all.asr.hdc.sem'
    fn_all_nbl = 'all.nbl'
    fn_all_nbl_hdc_sem = 'all.nbl.hdc.sem'

    fn_train_sem = 'train.sem'
    fn_train_trn = 'train.trn'
    fn_train_trn_hdc_sem = 'train.trn.hdc.sem'
    fn_train_asr = 'train.asr'
    fn_train_asr_hdc_sem = 'train.asr.hdc.sem'
    fn_train_nbl = 'train.nbl'
    fn_train_nbl_hdc_sem = 'train.nbl.hdc.sem'

    fn_dev_sem = 'dev.sem'
    fn_dev_trn = 'dev.trn'
    fn_dev_trn_hdc_sem = 'dev.trn.hdc.sem'
    fn_dev_asr = 'dev.asr'
    fn_dev_asr_hdc_sem = 'dev.asr.hdc.sem'
    fn_dev_nbl = 'dev.nbl'
    fn_dev_nbl_hdc_sem = 'dev.nbl.hdc.sem'

    fn_test_sem = 'test.sem'
    fn_test_trn = 'test.trn'
    fn_test_trn_hdc_sem = 'test.trn.hdc.sem'
    fn_test_asr = 'test.asr'
    fn_test_asr_hdc_sem = 'test.asr.hdc.sem'
    fn_test_nbl = 'test.nbl'
    fn_test_nbl_hdc_sem = 'test.nbl.hdc.sem'

    indomain_data_dir = "indomain_data"

    print "Generating the SLU train and test data"
    print "-"*120
    ###############################################################################################

    files = []
    files.append(glob.glob(os.path.join(indomain_data_dir, 'asr_transcribed.xml')))
    files.append(glob.glob(os.path.join(indomain_data_dir, '*', 'asr_transcribed.xml')))
    files.append(glob.glob(os.path.join(indomain_data_dir, '*', '*', 'asr_transcribed.xml')))
    files.append(glob.glob(os.path.join(indomain_data_dir, '*', '*', '*', 'asr_transcribed.xml')))
    files.append(glob.glob(os.path.join(indomain_data_dir, '*', '*', '*', '*', 'asr_transcribed.xml')))
    files.append(glob.glob(os.path.join(indomain_data_dir, '*', '*', '*', '*', '*', 'asr_transcribed.xml')))
    files = various.flatten(files)

    sem = []
    trn = []
    trn_hdc_sem = []
    asr = []
    asr_hdc_sem = []
    nbl = []
    nbl_hdc_sem = []

    for fn in files[:100000]:
        f_dir = os.path.dirname(fn)

        print "Processing:", fn
        doc = xml.dom.minidom.parse(fn)
        turns = doc.getElementsByTagName("turn")

        for i, turn in enumerate(turns):
            if turn.getAttribute('speaker') != 'user':
                continue

            recs = turn.getElementsByTagName("rec")
            trans = turn.getElementsByTagName("asr_transcription")
            asrs = turn.getElementsByTagName("asr")

            if len(recs) != 1:
                print "Skipping a turn {turn} in file: {fn} - recs: {recs}".format(turn=i,fn=fn, recs=len(recs))
                continue

            if len(asrs) == 0 and (i + 1) < len(turns):
                next_asrs = turns[i+1].getElementsByTagName("asr")
                if len(next_asrs) != 2:
                    print "Skipping a turn {turn} in file: {fn} - asrs: {asrs} - next_asrs: {next_asrs}".format(turn=i, fn=fn, asrs=len(asrs), next_asrs=len(next_asrs))
                    continue
                print "Recovered from missing ASR output by using a delayed ASR output from the following turn of turn {turn}. File: {fn} - next_asrs: {asrs}".format(turn=i, fn=fn, asrs=len(next_asrs))
                hyps = next_asrs[0].getElementsByTagName("hypothesis")
            elif len(asrs) == 1:
                hyps = asrs[0].getElementsByTagName("hypothesis")
            elif len(asrs) == 2:
                print "Recovered from EXTRA ASR outputs by using a the last ASR output from the turn. File: {fn} - asrs: {asrs}".format(fn=fn, asrs=len(asrs))
                hyps = asrs[-1].getElementsByTagName("hypothesis")
            else:
                print "Skipping a turn {turn} in file {fn} - asrs: {asrs}".format(turn=i,fn=fn, asrs=len(asrs))
                continue

            if len(trans) == 0:
                print "Skipping a turn in {fn} - trans: {trans}".format(fn=fn, trans=len(trans))
                continue

            wav_key = recs[0].getAttribute('fname')
            wav_path = os.path.join(f_dir, wav_key)
            
            # FIXME: Check whether the last transcription is really the best! FJ
            t = various.get_text_from_xml_node(trans[-1])
            t = normalise_text(t)

            
            if '--asr-log' not in sys.argv:
                asr_rec_nbl = asr_rec.rec_wav_file(wav_path)
                a = unicode(asr_rec_nbl.get_best())
            else:  
                a = various.get_text_from_xml_node(hyps[0])
                a = normalise_semi_words(a)

            if exclude_slu(t) or 'DOM Element:' in a:
                print "Skipping transcription:", unicode(t)
                print "Skipping ASR output:   ", unicode(a)
                continue

            # The silence does not have a label in the language model.
            t = t.replace('_SIL_','')

            trn.append((wav_key, t))

            print "Parsing transcription:", unicode(t)
            print "                  ASR:", unicode(a)

            # HDC SLU on transcription
            s = slu.parse_1_best({'utt':Utterance(t)}).get_best_da()
            trn_hdc_sem.append((wav_key, s))

            if '--uniq' not in sys.argv:
                # HDC SLU on 1 best ASR
                if '--asr-log' not in sys.argv:
                    a = unicode(asr_rec_nbl.get_best())
                else:  
                    a = various.get_text_from_xml_node(hyps[0])
                    a = normalise_semi_words(a)

                asr.append((wav_key, a))

                s = slu.parse_1_best({'utt':Utterance(a)}).get_best_da()
                asr_hdc_sem.append((wav_key, s))

                # HDC SLU on N best ASR
                n = UtteranceNBList()
                if '--asr-log' not in sys.argv:
                   n = asr_rec_nbl
                   
                   print 'ASR RECOGNITION NBLIST\n',unicode(n)
                else:
                    for h in hyps:
                        txt = various.get_text_from_xml_node(h)
                        txt = normalise_semi_words(txt)

                        n.add(abs(float(h.getAttribute('p'))),Utterance(txt))

                n.merge()
                n.normalise()

                nbl.append((wav_key, n.serialise()))

                if '--fast' not in sys.argv:
                    s = slu.parse_nblist({'utt_nbl':n}).get_best_da()
                nbl_hdc_sem.append((wav_key, s))

            # there is no manual semantics in the transcriptions yet
            sem.append((wav_key, None))


    uniq_trn = {}
    uniq_trn_hdc_sem = {}
    uniq_trn_sem = {}
    trn_set = set()

    sem = dict(trn_hdc_sem)
    for k, v in trn:
        if not v in trn_set:
            trn_set.add(v)
            uniq_trn[k] = v
            uniq_trn_hdc_sem[k] = sem[k]
            uniq_trn_sem[k] = v + " <=> " + unicode(sem[k])

    save_wavaskey(fn_uniq_trn, uniq_trn)
    save_wavaskey(fn_uniq_trn_hdc_sem, uniq_trn_hdc_sem, trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))
    save_wavaskey(fn_uniq_trn_sem, uniq_trn_sem)

    # all
    save_wavaskey(fn_all_trn, dict(trn))
    save_wavaskey(fn_all_trn_hdc_sem, dict(trn_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))

    if '--uniq' not in sys.argv:
        save_wavaskey(fn_all_asr, dict(asr))
        save_wavaskey(fn_all_asr_hdc_sem, dict(asr_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))

        save_wavaskey(fn_all_nbl, dict(nbl))
        save_wavaskey(fn_all_nbl_hdc_sem, dict(nbl_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))


        seed_value = 10

        random.seed(seed_value)
        random.shuffle(trn)
        random.seed(seed_value)
        random.shuffle(trn_hdc_sem)
        random.seed(seed_value)
        random.shuffle(asr)
        random.seed(seed_value)
        random.shuffle(asr_hdc_sem)
        random.seed(seed_value)
        random.shuffle(nbl)
        random.seed(seed_value)
        random.shuffle(nbl_hdc_sem)

        # trn
        train_trn = trn[:int(0.8*len(trn))]
        dev_trn = trn[int(0.8*len(trn)):int(0.9*len(trn))]
        test_trn = trn[int(0.9*len(trn)):]

        save_wavaskey(fn_train_trn, dict(train_trn))
        save_wavaskey(fn_dev_trn, dict(dev_trn))
        save_wavaskey(fn_test_trn, dict(test_trn))

        # trn_hdc_sem
        train_trn_hdc_sem = trn_hdc_sem[:int(0.8*len(trn_hdc_sem))]
        dev_trn_hdc_sem = trn_hdc_sem[int(0.8*len(trn_hdc_sem)):int(0.9*len(trn_hdc_sem))]
        test_trn_hdc_sem = trn_hdc_sem[int(0.9*len(trn_hdc_sem)):]

        save_wavaskey(fn_train_trn_hdc_sem, dict(train_trn_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))
        save_wavaskey(fn_dev_trn_hdc_sem, dict(dev_trn_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))
        save_wavaskey(fn_test_trn_hdc_sem, dict(test_trn_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))

        # asr
        train_asr = asr[:int(0.8*len(asr))]
        dev_asr = asr[int(0.8*len(asr)):int(0.9*len(asr))]
        test_asr = asr[int(0.9*len(asr)):]

        save_wavaskey(fn_train_asr, dict(train_asr))
        save_wavaskey(fn_dev_asr, dict(dev_asr))
        save_wavaskey(fn_test_asr, dict(test_asr))

        # asr_hdc_sem
        train_asr_hdc_sem = asr_hdc_sem[:int(0.8*len(asr_hdc_sem))]
        dev_asr_hdc_sem = asr_hdc_sem[int(0.8*len(asr_hdc_sem)):int(0.9*len(asr_hdc_sem))]
        test_asr_hdc_sem = asr_hdc_sem[int(0.9*len(asr_hdc_sem)):]

        save_wavaskey(fn_train_asr_hdc_sem, dict(train_asr_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))
        save_wavaskey(fn_dev_asr_hdc_sem, dict(dev_asr_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))
        save_wavaskey(fn_test_asr_hdc_sem, dict(test_asr_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))

        # n-best lists
        train_nbl = nbl[:int(0.8*len(nbl))]
        dev_nbl = nbl[int(0.8*len(nbl)):int(0.9*len(nbl))]
        test_nbl = nbl[int(0.9*len(nbl)):]

        save_wavaskey(fn_train_nbl, dict(train_nbl))
        save_wavaskey(fn_dev_nbl, dict(dev_nbl))
        save_wavaskey(fn_test_nbl, dict(test_nbl))

        # nbl_hdc_sem
        train_nbl_hdc_sem = nbl_hdc_sem[:int(0.8*len(nbl_hdc_sem))]
        dev_nbl_hdc_sem = nbl_hdc_sem[int(0.8*len(nbl_hdc_sem)):int(0.9*len(nbl_hdc_sem))]
        test_nbl_hdc_sem = nbl_hdc_sem[int(0.9*len(nbl_hdc_sem)):]

        save_wavaskey(fn_train_nbl_hdc_sem, dict(train_nbl_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))
        save_wavaskey(fn_dev_nbl_hdc_sem, dict(dev_nbl_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))
        save_wavaskey(fn_test_nbl_hdc_sem, dict(test_nbl_hdc_sem), trans = lambda da: '&'.join(sorted(unicode(da).split('&'))))
Beispiel #6
0
def extract_from_xml(indomain_data_dir, outdir, cfg):
    """Extract transcription and Waves from xml

    Args:
        indomain_data_dir(path): path where the xml logs are stored
        outdir: directory to save the references and wave, Wav file names pairs
        cfg: Alex configuration
    """

    glob = 'asr_transcribed.xml'
    asr = asr_factory(cfg)

    print 'Collecting files under %s with glob %s' % (indomain_data_dir, glob)
    files = []
    for root, dirnames, filenames in os.walk(indomain_data_dir,
                                             followlinks=True):
        for filename in fnmatch.filter(filenames, glob):
            files.append(os.path.join(root, filename))

    # DEBUG example
    # files = [
    #     '/ha/projects/vystadial/data/call-logs/2013-05-30-alex-aotb-prototype/part1/2013-06-27-09-33-25.116055-CEST-00420221914256/asr_transcribed.xml']

    try:
        trn, dec, dec_len, wav_len = [], [], [], []
        for fn in files:
            doc = xml.dom.minidom.parse(fn)
            turns = doc.getElementsByTagName("turn")
            f_dir = os.path.dirname(fn)

            for turn in turns:
                if turn.getAttribute('speaker') != 'user':
                    continue

                recs = turn.getElementsByTagName("rec")
                trans = turn.getElementsByTagName("asr_transcription")

                if len(recs) != 1:
                    print "Skipping a turn {turn} in file: {fn} - recs: {recs}".format(
                        turn=turn.getAttribute('turn_number'),
                        fn=fn,
                        recs=len(recs))
                    continue

                if len(trans) == 0:
                    print "Skipping a turn in {fn} - trans: {trans}".format(
                        fn=fn, trans=len(trans))
                    continue

                wav_file = recs[0].getAttribute('fname')
                # FIXME: Check whether the last transcription is really the best! FJ
                t = various.get_text_from_xml_node(trans[-1])
                t = normalise_text(t)

                if exclude_lm(t):
                    continue

                # TODO is it still valid? OP
                # The silence does not have a label in the language model.
                t = t.replace('_SIL_', '')
                trn.append((wav_file, t))

                wav_path = os.path.join(f_dir, wav_file)
                best, dec_dur, fw_dur, wav_dur = decode_info(
                    asr, cfg, outdir, wav_path, t)
                dec.append((wav_file, best))
                wav_len.append((wav_file, wav_dur))
                dec_len.append((wav_file, dec_dur))

    except Exception as e:
        print 'PARTIAL RESULTS were saved to %s' % outdir
        print e
        raise e
    finally:
        trn_dict = dict(trn)
        dec_dict = dict(dec)
        wavlen_dict = dict(wav_len)
        declen_dict = dict(dec_len)
        compute_save_stat(outdir, trn_dict, dec_dict, wavlen_dict, declen_dict)
Beispiel #7
0
def process_call_log(fn):
    name = multiprocessing.current_process().name
    asr = []
    nbl = []
    sem = []
    trn = []
    trn_hdc_sem = []
    fcount = 0
    tcount = 0

    f_dir = os.path.dirname(fn)
    print "Process name:", name
    print "File #", fcount
    fcount += 1
    print "Processing:", fn
    doc = xml.dom.minidom.parse(fn)
    turns = doc.getElementsByTagName("turn")
    for i, turn in enumerate(turns):
        if turn.getAttribute('speaker') != 'user':
            continue

        recs = turn.getElementsByTagName("rec")
        trans = turn.getElementsByTagName("asr_transcription")
        asrs = turn.getElementsByTagName("asr")

        if len(recs) != 1:
            print "Skipping a turn {turn} in file: {fn} - recs: {recs}".format(turn=i, fn=fn, recs=len(recs))
            continue

        if len(asrs) == 0 and (i + 1) < len(turns):
            next_asrs = turns[i + 1].getElementsByTagName("asr")
            if len(next_asrs) != 2:
                print "Skipping a turn {turn} in file: {fn} - asrs: {asrs} - next_asrs: {next_asrs}".format(turn=i,
                                                                                                            fn=fn,
                                                                                                            asrs=len(
                                                                                                                asrs),
                                                                                                            next_asrs=len(
                                                                                                                next_asrs))
                continue
            print "Recovered from missing ASR output by using a delayed ASR output from the following turn of turn {turn}. File: {fn} - next_asrs: {asrs}".format(
                turn=i, fn=fn, asrs=len(next_asrs))
            hyps = next_asrs[0].getElementsByTagName("hypothesis")
        elif len(asrs) == 1:
            hyps = asrs[0].getElementsByTagName("hypothesis")
        elif len(asrs) == 2:
            print "Recovered from EXTRA ASR outputs by using a the last ASR output from the turn. File: {fn} - asrs: {asrs}".format(
                fn=fn, asrs=len(asrs))
            hyps = asrs[-1].getElementsByTagName("hypothesis")
        else:
            print "Skipping a turn {turn} in file {fn} - asrs: {asrs}".format(turn=i, fn=fn, asrs=len(asrs))
            continue

        if len(trans) == 0:
            print "Skipping a turn in {fn} - trans: {trans}".format(fn=fn, trans=len(trans))
            continue

        wav_key = recs[0].getAttribute('fname')
        wav_path = os.path.join(f_dir, wav_key)

        # FIXME: Check whether the last transcription is really the best! FJ
        t = various.get_text_from_xml_node(trans[-1])
        t = normalise_text(t)

        if '--asr-log' not in sys.argv:
            asr_rec_nbl = asr_rec.rec_wav_file(wav_path)
            a = unicode(asr_rec_nbl.get_best())
        else:
            a = various.get_text_from_xml_node(hyps[0])
            a = normalise_semi_words(a)

        if exclude_slu(t) or 'DOM Element:' in a:
            print "Skipping transcription:", unicode(t)
            print "Skipping ASR output:   ", unicode(a)
            continue

        # The silence does not have a label in the language model.
        t = t.replace('_SIL_', '')

        trn.append((wav_key, t))

        print
        print "Transcritpiton #", tcount
        tcount += 1
        print "Parsing transcription:", unicode(t)
        print "                  ASR:", unicode(a)

        # HDC SLU on transcription
        s = slu.parse_1_best({'utt': Utterance(t)}).get_best_da()
        trn_hdc_sem.append((wav_key, s))


        # 1 best ASR
        asr.append((wav_key, a))

        # N best ASR
        n = UtteranceNBList()
        if '--asr-log' not in sys.argv:
            n = asr_rec_nbl

            print 'ASR RECOGNITION NBLIST\n', unicode(n)
        else:
            for h in hyps:
                txt = various.get_text_from_xml_node(h)
                txt = normalise_semi_words(txt)

                n.add(abs(float(h.getAttribute('p'))), Utterance(txt))

        n.merge()
        n.normalise()

        nbl.append((wav_key, n.serialise()))

        # there is no manual semantics in the transcriptions yet
        sem.append((wav_key, None))

    return asr, nbl, sem, trn, trn_hdc_sem, fcount, tcount