In the dynamic world of AI, data is crucial for an AI model’s success. Yet, acquiring high-quality, diverse, and abundant real-world data is often challenging. This is where synthetic data steps in. Let’s take a closer look at the importance of data in AI and how synthetic data is so useful in improving AI performance.
Importance of Data in AI
Any kind of AI application requires a large volume of data, as data is what AI systems are trained on. So, the better the quality and quantity of data provided, the more accurate and efficient the intelligence of the application is.
In more tangible terms, the following are two of the main reasons why data is of great value to AI:
- Training: AI systems, especially machine learning models require diverse and large datasets to improve predictions and accuracy.
- Generalization: When specific examples are provided to AI through extensive data, it helps the systems to make predictions on unseen data. High quality training data is thus important to ensure that AI systems make reliable generalizations.
What’s Synthetic Data and What are its Uses?
Synthetic data is data that’s not generated by real-world events but rather artificial processes. For instance, the data generated by hundreds of thousands of users on a social media platform when they enter and share details like their name, location, etc. is real data. On the other hand, when an algorithm generates data from scratch based on certain inputs, it’s called synthetic data.
Synthetic data has many advantages as it removes the constraints associated with real data such as privacy and security. Additionally, you can create synthetic data as per your specific requirements for software testing and quality assurance.
The following are some of the biggest advantages of synthetic data:
- Privacy and Security Compliance: In application development, there are situations in which data that has to be used for testing may contain private or confidential information. Since real-world data can’t be used here to comply with privacy and security norms like GDPR, synthetic data is an ideal alternative.
- Limitless Data: Real-world data no matter how vast and deep has limitations, especially when you need specific data that meets a rigid criteria. Synthetic data solves this problem as it provides AI models to access as much data as needed in the desired format.
- Anomaly Detection: It’s easy to create anomalies or outliers in synthetic dataset which is useful for training AI models to detect and respond to unfamiliar events.
- Data Preprocessing: Synthetic data can be used for data preprocessing and augmentation tasks, such as denoising and data completion which can lead to better model performance.
How to Generate Synthetic Data?
The following are some of the most common options for synthetic data generation:
- Generative Adversarial Networks (GANs)- Generative Adversarial Networks (GANs) consist of two neural networks- a generator and a discriminator. These two work together- the former creates synthetic data and the latter tries to distinguish it from real data. This leads to generation of data that’s similar to real data. They are used in fields like image and speech recognition, where collecting large datasets is costly.
- Randomization and Noise Injection- These techniques are all about introducing random variations or noise into existing datasets to make them closely resemble real data. This approach is valuable for safeguarding data privacy, especially in sectors like healthcare, where synthetic data can shield patient information while supporting vital algorithm development.
- Variational Autoencoders- Variational Autoencoders (VAEs) are a type of neural network architecture that learns data structure and then generates samples from a probability distribution. Since this data is diverse, it’s useful in natural language processing and computer vision.
- Data augmentation- Data augmentation manipulates existing data which creates diversity in the data. For images, it includes flipping, cropping, and adding noise. In text data, it involves synonym replacement, paraphrasing, and language translation.
- Rule-Based Generation- In certain situations, synthetic data can also be created by rule-based methods. In these methods, you can define specific rules which offer control and predictability for specialized applications, such as generating synthetic traffic data for testing autonomous vehicles.
The development of synthetic data makes use of complex algorithms to unlock remarkable AI potential. It expands AI’s possibilities and defines new horizons. As AI experts continue to explore, we anticipate more groundbreaking developments in artificial intelligence in the near future.