Douglas „Doug“ Bruce Lenat was an American AI researcher and founder and CEO of Cycorp, Inc. in Austin, Texas. He died in 2023 at the age of 72. Not long before, he had participated in the AAAI Spring Symposia. In a touching speech, Edward „Ed“ Albert Feigenbaum remembered his friend and colleague on the afternoon of 26 March 2024 at the symposium „Empowering Machine Learning and Large Language Models with Domain and Commonsense Knowledge (AAAI-MAKE 2024)“. He is a famous American computer scientist who is considered the father of expert systems. Andreas Martin from the FHNW School of Business created the framework in a sensitive manner. He also called up a video that had never been posted online and that most of the audience had never seen before. It showed Doug Lenat giving an online lecture. Back in 1983, he had come to the opinion that heuristics lead to a dead end because a program mostly learns new things that are similar to what it already knows. His conclusion was that the first step was to make it’s knowledge base as large as possible. This led to the Cyc project, which aimed to capture the general knowledge of an average adult. Both Ed Feigenbaum and Doug Lenat proved to be critics of large language models at the event. More information about the AAAI 2024 Spring Symposia is available here.

Fig.: Edward Feigenbaum during his speech at Stanford University