AI21 is addressing the limitations of Large Language Models (LLM) by combining deep learning with old-fashioned AI.
In addition to Goshen, a serial entrepreneur who previously established crowdfunding platform CrowdX, AI21 was started five years ago by Yoav Shoham, emeritus professor of computer science at Stanford University and Amnon Shashua, co-founder of autonomous driving software company Mobileye.
“Bigger is better” has led to the creation of “foundation models” , large language models that are trained on lots of unlabeled data that can be used for different tasks with minimal fine-tuning, and in different domains, with the addition of domain-related data. The most important additional component adds “old-fashioned” AI, the symbolling reasoning or knowledge representation approach that dominated the field in its early days. The AI21 system combines the power of statistics on steroids with rules invented by human intelligence.
Adding reasoning to the deep learning-based NLP system increases the probability of accurately guessing the user’s intentions and providing the right answer by going directly to the right source. By doing so, AI21 Labs avoids a known limitation of popular large language models—they are as good as the data they were trained on. This means they can be woefully outdated, providing wrong answers to questions about current affairs or current weather conditions, for example.
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