Adaptive algorithms are a class of algorithms that have the ability to modify their behavior and parameters based on the input data they receive. These algorithms are designed to learn and adapt from the data they encounter, allowing them to improve their performance over time.

Adaptive algorithms are particularly useful when dealing with dynamic and changing environments where the underlying patterns or relationships may evolve or shift over time.

There are various types of adaptive algorithms, each with its own approach to learning and adaptation. Some common examples include:

1. Adaptive filtering: These algorithms are used for processing signals and data streams in real time. They adjust their filter coefficients dynamically to optimize the filtering process based on the characteristics of the input signal.
2. Adaptive control: These algorithms are used in control systems to automatically adjust the control parameters based on the system’s behavior and performance. They enable systems to adapt to changes, uncertainties, and disturbances in the environment.
3. Adaptive machine learning: These algorithms learn from the input data and update their models or parameters accordingly. They can adapt to changing patterns or concepts in the data, allowing for improved accuracy and performance over time.
4. Genetic algorithms: These algorithms are inspired by the process of natural selection and evolution. They maintain a population of potential solutions and iteratively apply genetic operators such as mutation and crossover to generate new solutions that adapt and improve based on fitness criteria.
5. Reinforcement learning: This is a type of machine learning where an agent learns by interacting with an environment and receiving feedback in the form of rewards or penalties. The algorithm adapts its behavior to maximize the cumulative reward over time.

In summary, adaptive algorithms are designed to dynamically adjust their behavior and parameters based on the data they encounter, allowing them to learn, improve, and adapt to changing environments or conditions.