o "j@sdZddlZddlZddlZddlmZgZdZdZ GdddZ ddd Z dd d Z d dZ eddddde jfddZeddddde jfddZedddddddZdS)z imikolov's simple dataset. This module will download dataset from http://www.fit.vutbr.cz/~imikolov/rnnlm/ and parse training set and test set into paddle reader creators. N) deprecatedz) collections defaultdictintstripsplit)f word_freqlwr r r word_count(s r2c sd}d}ttjjtjjjdtjjjO}| |}| |}t |t |}d|vr/|d=fdd| D}t |ddd }t t|\}} tt t|tt|} t|| d<Wd | S1shwY| S) z Build a word dictionary from the corpus, Keys of the dictionary are words, and values are zero-based IDs of these words. $./simple-examples/data/ptb.train.txt$./simple-examples/data/ptb.valid.txtimikolovcsg|] }|dkr|qS)rr ).0x min_word_freqr r Hszbuild_dict..cSs|d |dfS)Nrrr )rr r r Jszbuild_dict..)keyN)tarfileopenpaddledatasetcommondownloadrURLMD5 extractfileritemssortedlistzipdictrangelen) r!Ztrain_filenameZ test_filenametfZtrainfZtestfrZword_freq_sortedwords_word_idxr r r build_dict5s,   r9csfdd}|S)Nc3sXttjjtjjjdtjjj}| }d|D]z}t j krbdks.Jddg| dg}t|krafdd|D}tt|d D] }t|||VqSqt jkr| }fd d|D}dg|}|dg}d krt|krq||fVqtd WddS1swYdS) NrrzInvalid gram lengthr rcg|]}|qSr getrrUNKr8r r r"cz2reader_creator..reader..rcr;r r<r>r?r r r"hrArzUnknown data type)r%r&r'r(r)r*rr+r,r-rr rrr4r3tupler AssertionError)r5rriZsrc_seqZtrg_seq data_typefilenamenr8)r@r readerSs>      "zreader_creator..readerr )rGr8rHrFrIr rEr reader_creatorRsrJz2.0.0zpaddle.text.datasets.Imikolovrz>Please use new dataset API which supports paddle.io.DataLoader)ZsinceZ update_tolevelreasoncCtd|||S)a imikolov training set creator. It returns a reader creator, each sample in the reader is a word ID tuple. :param word_idx: word dictionary :type word_idx: dict :param n: sliding window size if type is ngram, otherwise max length of sequence :type n: int :param data_type: data type (ngram or sequence) :type data_type: member variable of DataType (NGRAM or SEQ) :return: Training reader creator :rtype: callable rrJr8rHrFr r r traintrPcCrM)a imikolov test set creator. It returns a reader creator, each sample in the reader is a word ID tuple. :param word_idx: word dictionary :type word_idx: dict :param n: sliding window size if type is ngram, otherwise max length of sequence :type n: int :param data_type: data type (ngram or sequence) :type data_type: member variable of DataType (NGRAM or SEQ) :return: Test reader creator :rtype: callable rrNrOr r r testrQrRcCstjjtdtdS)Nr)r'r(r)r*r+r,r r r r fetchsrS)N)r)__doc__rr%Zpaddle.dataset.commonr'Z paddle.utilsr__all__r+r,rrr9rJr rPrRrSr r r r sB    "