Towards General Artificial Intelligence
Abstract: Dr. Demis Hassabis is the Co-Founder and CEO of DeepMind, the world’s leading General Artificial Intelligence (AI) company, which was acquired by Google in 2014 in their largest ever European acquisition. Demis will draw on his eclectic experiences as an AI researcher, neuroscientist and videogames designer to discuss what is happening at the cutting edge of AI research, including the recent historic AlphaGo match, and its future potential impact on fields such as science and healthcare, and how developing AI may help us better understand the human mind.
This talk is presented as part of the CBMM Annual Retreat.
Organizer: Tomaso Poggio Organizer Email: cbmm-contact@mit.eduNeural Tuning Size in a Model of Primate Visual Processing Accounts for Three Key Markers of Holistic Face Processing
Hybrid Search: How long-term memories interact with visual search.
Abstract: In a typical visual search task, you look for a target object amongst some non-target, distractor objects. In the real world, however, you often look for more than one thing at one time. In the supermarket, you might be holding a shopping list of 10 items in your memory. We will call this combination of visual search and memory search. “hybrid search”. In a basic hybrid search task in the lab, our Observers memorized 1-100 specific objects and searched for them in visual displays of 1-16 objects. Reaction Time (RT) was a linear function of the visual set size. RT is not a linear function of the memory set size. Rather, RT increases linearly with the log of the number of items in memory. What does the log function tell us about memory search? What is the roll of working memory? What happens if you are looking for categories of items (e.g. Find any animals, coins, or boats)? What happens if observers are foraging for multiple instances of multiple types of targets in a single display? By answering questions like these, the hybrid search paradigm gives us new insights into the interaction of object recognition, memory and visual attention in complex tasks.

