customer support chatbot
1.0.0
Chatbot adalah program komputer yang melakukan percakapan seperti manusia. Proyek ini mengimplementasikan chatbot yang mencoba menjawab pertanyaan pengguna sebagai agen dukungan pelanggan. Chatbot dukungan pelanggan berikut diterapkan: AppleSupport, AmazonHelp, Uber_Support, Delta, dan SpotifyCares. Chatbots dilatih tentang percakapan yang tersedia untuk umum antara dukungan pelanggan dan pengguna di Twitter.
Chatbot diimplementasikan sebagai model pembelajaran mendalam sequence to sequence dengan perhatian. Proyek ini sebagian besar didasarkan pada Bahdanau dkk. 2014, Luong dkk. 2015. dan Vinyals dkk., 2015..
Contoh percakapan dengan chatbot dukungan pelanggan. Percakapan dengan chatbots tidaklah ideal tetapi menunjukkan hasil yang menjanjikan. Jawaban Chatbot ada dalam gelembung abu-abu.
Dataset yang digunakan untuk pelatihan chatbot dapat ditemukan di sini. Kumpulan data ini dibuat dengan mengumpulkan percakapan yang tersedia untuk umum antara dukungan pelanggan dan pengguna di Twitter. Terima kasih banyak kepada penulis kumpulan data!
Anda dapat mencoba chatbot dengan menggunakan model terlatih atau dengan melatih chatbot Anda sendiri.
pip3 install -r requirements.txt
python3 -m spacy download enJalankan perintah berikut di root repositori ini untuk mengunduh chatbot layanan pelanggan terlatih.
wget https://www.dropbox.com/s/ibm49gx1gefpqju/pretrained-models.zip
unzip pretrained-models.zip
rm pretrained-models.zip
sudo chmod +x predict.py Sekarang Anda dapat "berbicara" dengan chatbot layanan pelanggan menggunakan skrip predict.py . Chatbot layanan pelanggan berikut tersedia: apple,amazon,uber,delta,spotify . Contoh berikut menunjukkan cara menjalankan chatbot layanan pelanggan apple :
./predict.py -cs appleAnda dapat memilih untuk melatih chatbot sendiri. Jalankan perintah berikut untuk mengunduh dan memformat kumpulan data Twitter yang digunakan dalam proyek ini:
wget https://www.dropbox.com/s/nmnlcncn7jtb7i9/twcs.zip
unzip twcs.zip
mkdir data
mv twcs.csv data
rm twcs.zip
python3 datasets/twitter_customer_support/format.py # this runs for couple of hours
sudo chmod +x train.pyPERINGATAN blok ini akan berjalan selama beberapa jam!
Sekarang Anda dapat menggunakan train.py untuk melatih chatbot.
train.py digunakan untuk melatih chatbot seq2seq.
usage: train.py [-h] [--max-epochs MAX_EPOCHS] [--gradient-clip GRADIENT_CLIP]
[--batch-size BATCH_SIZE] [--learning-rate LEARNING_RATE]
[--train-embeddings] [--save-path SAVE_PATH]
[--save-every-epoch]
[--dataset {twitter-applesupport,twitter-amazonhelp,twitter-delta,twitter-spotifycares,twitter-uber_support,twitter-all,twitter-small}]
[--teacher-forcing-ratio TEACHER_FORCING_RATIO] [--cuda]
[--multi-gpu]
[--embedding-type {glove.42B.300d,glove.840B.300d,glove.twitter.27B.25d,glove.twitter.27B.50d,glove.twitter.27B.100d,glove.twitter.27B.200d,glove.6B.50d,glove.6B.100d,glove.6B.200d,glove.6B.300d} | --embedding-size EMBEDDING_SIZE]
[--encoder-rnn-cell {LSTM,GRU}]
[--encoder-hidden-size ENCODER_HIDDEN_SIZE]
[--encoder-num-layers ENCODER_NUM_LAYERS]
[--encoder-rnn-dropout ENCODER_RNN_DROPOUT]
[--encoder-bidirectional] [--decoder-type {bahdanau,luong}]
[--decoder-rnn-cell {LSTM,GRU}]
[--decoder-hidden-size DECODER_HIDDEN_SIZE]
[--decoder-num-layers DECODER_NUM_LAYERS]
[--decoder-rnn-dropout DECODER_RNN_DROPOUT]
[--luong-attn-hidden-size LUONG_ATTN_HIDDEN_SIZE]
[--luong-input-feed]
[--decoder-init-type {zeros,bahdanau,adjust_pad,adjust_all}]
[--attention-type {none,global,local-m,local-p}]
[--attention-score {dot,general,concat}]
[--half-window-size HALF_WINDOW_SIZE]
[--local-p-hidden-size LOCAL_P_HIDDEN_SIZE]
[--concat-attention-hidden-size CONCAT_ATTENTION_HIDDEN_SIZE]
Script for training seq2seq chatbot.
optional arguments:
-h, --help show this help message and exit
--max-epochs MAX_EPOCHS
Max number of epochs models will be trained.
--gradient-clip GRADIENT_CLIP
Gradient clip value.
--batch-size BATCH_SIZE
Batch size.
--learning-rate LEARNING_RATE
Initial learning rate.
--train-embeddings Should gradients be propagated to word embeddings.
--save-path SAVE_PATH
Folder where models (and other configs) will be saved
during training.
--save-every-epoch Save model every epoch regardless of validation loss.
--dataset {twitter-applesupport,twitter-amazonhelp,twitter-delta,twitter-spotifycares,twitter-uber_support,twitter-all,twitter-small}
Dataset for training model.
--teacher-forcing-ratio TEACHER_FORCING_RATIO
Teacher forcing ratio used in seq2seq models. [0-1]
--embedding-type {glove.42B.300d,glove.840B.300d,glove.twitter.27B.25d,glove.twitter.27B.50d,glove.twitter.27B.100d,glove.twitter.27B.200d,glove.6B.50d,glove.6B.100d,glove.6B.200d,glove.6B.300d}
Pre-trained embeddings type.
--embedding-size EMBEDDING_SIZE
Dimensionality of word embeddings.
GPU:
GPU related settings.
--cuda Use cuda if available.
--multi-gpu Use multiple GPUs if available.
Encoder:
Encoder hyperparameters.
--encoder-rnn-cell {LSTM,GRU}
Encoder RNN cell type.
--encoder-hidden-size ENCODER_HIDDEN_SIZE
Encoder RNN hidden size.
--encoder-num-layers ENCODER_NUM_LAYERS
Encoder RNN number of layers.
--encoder-rnn-dropout ENCODER_RNN_DROPOUT
Encoder RNN dropout probability.
--encoder-bidirectional
Use bidirectional encoder.
Decoder:
Decoder hyperparameters.
--decoder-type {bahdanau,luong}
Type of the decoder.
--decoder-rnn-cell {LSTM,GRU}
Decoder RNN cell type.
--decoder-hidden-size DECODER_HIDDEN_SIZE
Decoder RNN hidden size.
--decoder-num-layers DECODER_NUM_LAYERS
Decoder RNN number of layers.
--decoder-rnn-dropout DECODER_RNN_DROPOUT
Decoder RNN dropout probability.
--luong-attn-hidden-size LUONG_ATTN_HIDDEN_SIZE
Luong decoder attention hidden projection size
--luong-input-feed Whether Luong decoder should use input feeding
approach.
--decoder-init-type {zeros,bahdanau,adjust_pad,adjust_all}
Decoder initial RNN hidden state initialization.
Attention:
Attention hyperparameters.
--attention-type {none,global,local-m,local-p}
Attention type.
--attention-score {dot,general,concat}
Attention score function type.
--half-window-size HALF_WINDOW_SIZE
D parameter from Luong et al. paper. Used only for
local attention.
--local-p-hidden-size LOCAL_P_HIDDEN_SIZE
Local-p attention hidden size (used when predicting
window position).
--concat-attention-hidden-size CONCAT_ATTENTION_HIDDEN_SIZE
Attention layer hidden size. Used only with concat
score function.
predict.py digunakan untuk "berbicara" dengan chatbot seq2seq.
usage: predict.py [-h] [-cs {apple,amazon,uber,delta,spotify}] [-p MODEL_PATH]
[-e EPOCH] [--sampling-strategy {greedy,random,beam_search}]
[--max-seq-len MAX_SEQ_LEN] [--cuda]
Script for "talking" with pre-trained chatbot.
optional arguments:
-h, --help show this help message and exit
-cs {apple,amazon,uber,delta,spotify}, --customer-service {apple,amazon,uber,delta,spotify}
-p MODEL_PATH, --model-path MODEL_PATH
Path to directory with model args, vocabulary and pre-
trained pytorch models.
-e EPOCH, --epoch EPOCH
Model from this epoch will be loaded.
--sampling-strategy {greedy,random,beam_search}
Strategy for sampling output sequence.
--max-seq-len MAX_SEQ_LEN
Maximum length for output sequence.
--cuda Use cuda if available.
