Exploring Vector Databases: The Powerhouse Behind AI-Driven Applications

Adityabhate
3 min readJun 17, 2023

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Introduction:

In the past few months, Vector Database startups have been making waves in the tech industry, capturing the attention of investors and enthusiasts alike. Weeviate secured an impressive $16 million in series funding, while Pinecone DB soared to new heights with a whopping $28 million valuation. And Recently, Chroma, a humble open-source project with only 1.2k GitHub Stars, managed to raise a staggering $18 million. These financial triumphs beg the question: What exactly is a Vector Database, and why are they causing such a frenzy? Follow along as we explore the secrets behind these remarkable databases and their pivotal role in AI-driven applications.

What is a Vector Database?

Before we unravel the mystique surrounding Vector Databases, let’s start with the basics. At its core, a vector is nothing more than an array of numbers. However, the true magic lies in their ability to represent complex objects like words, sentences, images, or audio files within a continuous high-dimensional space known as an embedding. It’s like attending a party where like-minded individuals naturally gravitate towards one another. Similarly, embeddings group similar objects together, mapping the semantic meaning of words or capturing similar features across various data types. These powerful embeddings find their utility in recommendation systems, search engines, and even text generation tools like Chat GPT.

Storing and Querying Embeddings:

Once we possess these valuable embeddings, the challenge arises: How do we efficiently store and query them? Enter Vector Databases, the heroes of our story. While relational databases like PostgreSQL and document databases like Redis offer some support for vectors, a new breed of native Vector Databases has risen to prominence. Weeviate and Milvis, open-source options written in Go, have gained attention for their versatility and performance. Pinecone, despite not being open source, has popular in the industry. And let’s not forget Chroma, a remarkable project built on the foundation of Clickhouse, capturing the attention of developers everywhere. These Vector Databases enable developers to cluster arrays of numbers based on similarity, allowing for lightning-fast, low-latency queries. For applications driven by AI, this makes them an ideal choice.

Vector Databases and AI-Driven Applications:

The current fervor surrounding Vector Databases stems from their unique ability to extend the capabilities of large language models (LLMs) with long-term memory. Picture starting with a robust, general-purpose model like OpenAI’s GPT-4 or Google’s Lambda and injecting your own data into a Vector Database. When a user engages with the model, you can swiftly query relevant documents from your database, enriching the context and customizing the response. Furthermore, Vector Databases offer the intriguing possibility of retrieving historical data, providing AI models with long-term memory. These databases seamlessly integrate with tools like a link chain, enabling the combination of multiple LLMs to unlock unprecedented potential.

Conclusion:

In conclusion, Vector Databases are the vanguard of a new era in AI-powered applications. With their ability to efficiently store and query complex data through embeddings, they have become an indispensable asset for recommendation systems, search engines, and language models. The recent surge in investment funding and the advent of innovative Vector Database startups further illuminate their potential and captivate the imagination of the tech industry. As the field continues to evolve, we eagerly anticipate the emergence of even more groundbreaking solutions and applications that will push the boundaries of AI-driven technologies, forever transforming the way we interact with the digital world.

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