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National Guard Members Continue LA Wildfire Response
January 21, 2025 — LOS ANGELES – U.S. Army Sgt. Ricardo Hernandez watched from a cross street as sporadic traffic... MORE

U.S. Army Sgt. Bryce Carter, an infantryman with C Company, 1st Battalion, 160th Infantry Regiment, California Army National Guard, sharpens the blade of a hoe to clear brush and other debris as part of remediation efforts along the Mulholland Trail near Tarzana, California, in the aftermath of the Palisades Fire, Jan. 18, 2025. Carter and other members of his unit were assisting CALFIRE in mop-up efforts, which included clearing brush and backfilling firebreaks and other areas to prevent mudslides and reduce the impact of firefighting efforts.

California Guardsman Helps Battle Wildfires in His Community
January 16, 2025 — CHANNEL ISLANDS AIR NATIONAL GUARD STATION, Calif. - Amid the wildfire crisis in California, an Air... MORE

Master Sgt. Alan Franklin, a commander's support Airman with the 146th Airlift Wing, speaks to 1st Lt. Aiden Flores about the Modular Airborne Fire Fighting System mission on the flightline at Channel Islands Air National Guard Station, Port Hueneme, California, Jan. 13, 2025. MAFFS aircraft from the Air National Guard’s 153rd Airlift Wing, Cheyenne, Wyoming, the 152nd Airlift Wing, Reno, Nevada, the 146th Airlift Wing, Port Hueneme, California, and Air Force Reserve Command’s 302 AW, Peterson Air Force Base, Colorado, are working together to combat fires in the Los Angeles area.

National Guard Bureau Chief Thanks Firefighting Guardsmen
January 14, 2025 — CHANNEL ISLANDS AIR NATIONAL GUARD STATION, Calif. – The National Guard is part of a multi-agency... MORE

Air Force Gen. Steve Nordhaus, chief, National Guard Bureau, and Army Senior Enlisted Advisor John Raines, SEA to the CNGB, visit National Guard members supporting wildland firefighting in Southern California, Channel Islands Air National Guard Station, Calif., Jan. 11, 2025. Thousands of National Guardsmen are involved in multiple air and ground firefighting in the Los Angeles Basin and Southern California.

Wyoming, Nevada Guard Aircrews Assist California Firefighters
January 13, 2025 — CHEYENNE, Wyo. – Three Wyoming Air National Guard C-130s equipped with the U.S. Forest Service’s... MORE

U.S. Air Force Airmen assigned to the 153rd Airlift Wing load and install the Modular Airborne Fire Fighting Systems onto a C-130H Hercules aircraft in Cheyenne, Wyoming, Jan. 10, 2025, in preparation to support firefighting efforts in the Los Angeles area.

California, Nevada, Wyoming Guard Join Firefighting Battle
January 10, 2025 — MOFFETT AIR NATIONAL GUARD BASE, Calif. - Hundreds of National Guard members are now involved in... MORE

U.S. Air Force Airmen with the 129th Rescue Wing, California Air National Guard, at Moffett Air National Guard Base, Calif., prepare an HH-60G Pave Hawk helicopter to help battle the Palisades Fire Jan. 9, 2025.

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Video by Kevin D Schmidt

Anna Schapiro - Learning representations of specifics and generalities over time

Air Force Research Laboratory

March 8, 2024 | 01:00:12

In this edition of QuEST, we are pleased to welcome Dr. Anna Schapiro to discuss learning representations of specifics and generalities over time.

Abstract:

There is a fundamental tension between storing discrete traces of individual experiences, which allows recall of particular moments in our past without interference, and extracting regularities across these experiences, which supports generalization and prediction in similar situations in the future. One influential proposal for how the brain resolves this tension is that it separates the processes anatomically into Complementary Learning Systems, with the hippocampus rapidly encoding individual episodes and the neocortex slowly extracting regularities over days, months, and years. But this does not explain our ability to learn and generalize from new regularities in our environment quickly, often within minutes. We have put forward a neural network model of the hippocampus that suggests that the hippocampus itself may contain complementary learning systems, with one pathway specializing in the rapid learning of regularities and a separate pathway handling the region’s classic episodic memory functions. This proposal has broad implications for how we learn and represent novel information of specific and generalized types, which we test across statistical learning, inference, and category learning paradigms. We also explore how this system interacts with slower-learning neocortical memory systems, with empirical and modeling investigations into how the hippocampus shapes neocortical representations during sleep. Together, the work helps us understand how structured information in our environment is initially encoded and how it then transforms over time.