> ## Documentation Index
> Fetch the complete documentation index at: https://doc.lucidworks.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Machine learning

[localhost link]: http://localhost:3000/docs/lucidworks-search/10-machine-learning/overview

[mintlify link]: https://doc.lucidworks.com/docs/lucidworks-search/10-machine-learning/overview

[old doc.lw link]: https://doc.lucidworks.com/managed-fusion/5.9/d0ujzr

Machine learning empowers your search by automatically boosting relevant items, providing solutions for cold start, and preventing zero results.
Lucidworks Search includes several built-in machine learning features:
import { LwTemplate } from '/snippets/LwTemplate.jsx';

<LwTemplate />

* [Smart Answers](/docs/lucidworks-search/10-machine-learning/smart-answers/overview) provides pre-trained cold start language models that leverages vector search, improving relevancy.
* [Sentiment Analysis and Prediction](/docs/lucidworks-search/10-machine-learning/sentiment-analysis) provides pre-trained models that help you interpret subjective and emotional aspects of queries.

<Card title="Intro to Machine Learning in Fusion" class="note-image" href="https://academy.lucidworks.com/intro-to-machine-learning-in-fusion" cta="Take this course on the LucidAcademy." icon="graduation-cap" iconType="duotone">
  The course for **Intro to Machine Learning in Fusion** focuses on using machine learning to infer the goals of customers and users in order to deliver a more sophisticated search experience.
</Card>