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Showing posts from August, 2023

Claude 2: A New Member of the Growing Family of Large Language Models

AI has advanced rapidly in recent years, with large language models (LLMs) like ChatGPT creating enormous excitement. These models can generate remarkably human-like text albeit  with certain limitations. In this post, we'll look at a new member of the family of large language models, Anthropic's Claude 2 , and highlight some of its features. Claude 2 Overview Claude2 was released in February 2023.  Claude 2 utilizes a context window of approximately 4,000 tokens during conversations. This allows it to actively reference the last 1,000-2,000 words spoken in order to strengthen contextual awareness and continuity. The context window is dynamically managed, expanding or contracting slightly based on factors like conversation complexity. This context capacity exceeds ChatGPT's approximately 1,000 token window, enabling Claude 2 to sustain longer, more intricate dialogues while retaining appropriate context.  In addition to conversational context, Claude 2 can take in multiple

Difference Between Semi-Supervised Learning and Self-Supervised Learning

There are many styles of training machine learning models including the familiar supervised and unsupervised learning to active learning, semi-supervised learning and self-supervised learning. In this post, I will explain the difference between semi-supervised and self-supervised styles of learning. To get started, let us first recap what is  supervised learning, the most popular machine learning methodology to build predictive models. Supervised learning uses annotated or labeled data to train predictive models. A   label   attached to a data vector is nothing but the response that the predictive model should generate  for that data vector as input during the model training. For example, we will label pictures of cats and dogs with labels   cat   and   dog  to train  a Cat versus Dog classifier. We assume a large enough training data set with labels is available w hen building a classifier. When there are no labels attached to the training data, then the learning style is known as uns

Retrieval Augmented Generation: What is it and Why do we need it?

What is Retrieval Augmented Generation? Generative AI is currently garnering lots of attention. While the responses provided by the large language models (LLMs) are satisfactory in most situations, sometimes we want to get better focused responses when employing LLMs in specific domains. Retrieval-augmented generation (RAG) offers one such way to improve the output of generative AI systems. RAG enhances the LLMs capabilities by providing them with additional knowledge context through information retrieval. Thus, RAG aims to combine the strengths of both retrieval-based methods, which focus on selecting relevant information, and generation-based methods, which produce coherent and fluent text.  RAG works in the following way: Retrieval : The process starts with retrieving relevant documents, passages, or pieces of information from a pre-defined corpus or database. These retrieved sources contain content that is related to the topic or context for which you want to gen