Datasets:
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import json
import datasets
class YelpDataset(datasets.GeneratorBasedBuilder):
"""Yelp Dataset focusing on restaurant reviews."""
VERSION = datasets.Version("1.1.0")
BUILDER_CONFIGS = [
datasets.BuilderConfig(name="restaurants", version=VERSION, description="This part of my dataset covers a wide range of restaurants"),
]
DEFAULT_CONFIG_NAME = "restaurants"
_URL = "https://yelpdata.s3.us-west-2.amazonaws.com/"
_URLS = {
"business": _URL + "yelp_academic_dataset_business.json",
"review": _URL + "yelp_academic_dataset_review.json",
}
def _info(self):
return datasets.DatasetInfo(
description=_DESCRIPTION,
features=datasets.Features(
{
"business_id": datasets.Value("string"),
"name": datasets.Value("string"),
"categories": datasets.Value("string"),
"review_id": datasets.Value("string"),
"user_id": datasets.Value("string"),
"stars": datasets.Value("float"),
"text": datasets.Value("string"),
"date": datasets.Value("string"),
}
),
supervised_keys=None,
homepage="https://www.yelp.com/dataset/download",
citation=_CITATION,
)
def _split_generators(self, dl_manager: datasets.DownloadManager):
"""Returns SplitGenerators."""
downloaded_files = dl_manager.download_and_extract(self._URLS)
return [
datasets.SplitGenerator(name=datasets.Split.TRAIN, gen_kwargs={"business_path": downloaded_files["business"], "review_path": downloaded_files["review"], "split": "train"}),
datasets.SplitGenerator(name=datasets.Split.TEST, gen_kwargs={"business_path": downloaded_files["business"], "review_path": downloaded_files["review"], "split": "test"}),
]
def _generate_examples(self, business_path, review_path, split):
"""Yields examples as (key, example) tuples."""
# Load businesses and filter for restaurants
with open(business_path, encoding="utf-8") as f:
businesses = {}
for line in f:
business = json.loads(line)
if business.get("categories") and "Restaurants" in business["categories"]:
businesses[business['business_id']] = business
# Generate examples
with open(review_path, encoding="utf-8") as f:
for line in f:
review = json.loads(line)
business_id = review['business_id']
if business_id in businesses:
yield review['review_id'], {
"business_id": business_id,
"name": businesses[business_id]['name'],
"categories": businesses[business_id]['categories'],
"review_id": review['review_id'],
"user_id": review['user_id'],
"stars": review['stars'],
"text": review['text'],
"date": review['date'],
}
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