Exam Professional Machine Learning Engineer topic 1 question 265 discussion

The Entity detection in the NLP API will be sufficient to identify ingredients and cookware-related words. It is much easier than training your own model in AutoML. Keep in mind that training on your own dataset could introduce some bias. Imagine your training data might cover many French or western recipes, but suddenly you get lots of Thai recipes in production. Your AutoML model would struggle to correctly identify ingredients that are not so common in western cooking such as lemongrass, kecap manis, kaffir or galangal.

With A you must label a dataset. Since the entities that need to be recognized are pretty common this effort is not justified. Moreover, as specified in https://cloud.google.com/vertex-ai/docs/text-data/entity-extraction/prepare-data, "You must supply at least 1, and no more than 100, unique labels to annotate entities that you want to extract." So, it looks like the dataset has a limit of 100 entities, which I do not think is enough for this use case.

This option involves creating a dataset specifically for entity extraction and training an AutoML model to identify ingredients and cookware. By labeling a minimum of 200 instances for each entity, it ensures a sufficient amount of data for training. Using a holdout dataset for assessment helps evaluate the model's performance. Overall, this approach seems appropriate for the task at hand. Reference: https://cloud.google.com/vertex-ai/docs/text-data/entity-extraction/prepare-data

By choosing option A, you can leverage the power of machine learning to efficiently extract ingredients and cookware from recipes in a scalable manner. option C uses the Entity Analysis method of the Natural Language API, which might be a viable option if you had access to the API's pre-trained models. However, since you're working with Vertex AI, creating a dataset for entity extraction is a better choice.

For extracting ingredients and cookware from recipe text files, creating a text dataset on Vertex AI for entity extraction with a custom NER model is the better approach. While it requires more upfront effort for data labeling and training, it offers superior accuracy and control over the types of entities extracted. However, if you need a quick and easy solution to get started, the Natural Language API's Entity Analysis can be a temporary option. Be aware that the accuracy might be lower, and you might need to post-process the results to filter out irrelevant entities.

Natural Language API offers a pre-built solution for entity analysis which eliminates the need for custom model training and labeling large datasets, saving time and resources. Vertex AI AutoML can aslo be used for entity extraction but it requires data labeling and training, which can be time-consuming for a vast number of potential ingredients and cookware.

My Answer: A  A: is the most suitable approach for this task because we need to identify and extract specific named entities ("ingredient" and "cookware") from the text, not classify the entire recipe into predefined categories. B: This approach would require classifying each recipe based on all possible ingredients and cookware, leading to a vast number of classes and potential performance issues. C: This pre-built solution might not be as customizable or scalable as training a specific model for this task. D: This is impractical and unnecessary as the number of potential ingredients and cookware is vast.

I prefer to A. Option C is not the best, because The NLP API is designed to identify general entities within text. While it's effective for broad categories, it may not be as precise for specialized domains like cooking ingredients and cookware, which require a more tailored approach.

A. "... you might create an entity extraction model to identify specialized terminology in legal documents or patents." I prefer this over C, which might classify carrot as vegetable, chicken as meat... custom entity extraction allows you to specify what entities you wish to extract from the text.

Reconsidering my answer and going with C Option A involves using AutoML entity extraction, which could be a valid approach. However, for extracting entities like ingredients and cookware, Google Cloud's pre-trained Natural Language API might be a more straightforward solution.

A is the correct option here

Option B: Multi-label text classification is less suitable for identifying specific entities within text and would require labeling entire recipes with multiple classes, increasing complexity and reducing model specificity. Option C: Natural Language API's Entity Analysis might not be as accurate for this specialized domain as a model trained on custom recipe data. Option D: Creating separate entities for each ingredient and cookware type would significantly increase labeling effort and potentially hinder model generalization.