# Copyright (c) MONAI Consortium
# 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 logging
from monailabel.interfaces.datastore import Datastore
from monailabel.interfaces.tasks.strategy import Strategy
logger = logging.getLogger(__name__)
[docs]class First(Strategy):
"""
Consider implementing a first strategy for active learning
"""
def __init__(self):
super().__init__("Get First Sample")
def __call__(self, request, datastore: Datastore):
label_tag = request.get("label_tag")
labels = request.get("labels")
images = datastore.get_unlabeled_images(label_tag, labels)
if not len(images):
return None
images.sort()
image = images[0]
logger.info(f"First: Selected Image: {image}")
return {"id": image}