benchmark/experiments/text.py
# Copyright 2020 The AutoKeras Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
import os
import keras
import numpy as np
from sklearn.datasets import load_files
import autokeras as ak
from benchmark.experiments import experiment
class IMDB(experiment.Experiment):
def __init__(self):
super().__init__(name="IMDB")
def get_auto_model(self):
return ak.TextClassifier(
max_trials=10, directory=self.tmp_dir, overwrite=True
)
@staticmethod
def load_data():
dataset = keras.utils.get_file(
fname="aclImdb.tar.gz",
origin="http://ai.stanford.edu/~amaas/data/sentiment/aclImdb_v1.tar.gz", # noqa: E501
extract=True,
)
# set path to dataset
IMDB_DATADIR = os.path.join(os.path.dirname(dataset), "aclImdb")
classes = ["pos", "neg"]
train_data = load_files(
os.path.join(IMDB_DATADIR, "train"),
shuffle=True,
categories=classes,
)
test_data = load_files(
os.path.join(IMDB_DATADIR, "test"),
shuffle=False,
categories=classes,
)
x_train = np.array(train_data.data)
y_train = np.array(train_data.target)
x_test = np.array(test_data.data)
y_test = np.array(test_data.target)
return (x_train, y_train), (x_test, y_test)