Reviews
Learning To Climb On The Fitness Landscape
Nature presents a diversity of challenges that individuals can address through learning, and the best learning strategies to employ can depend on the type of challenge. Challenges can vary in how rewarding a given solution is, with respect to how closely it resembles some optimal ideal. In some cases, small incremental improvements toward the ideal provide adequate feedback between solution and reward for an individual to learn asocially (wide fitness landscape). By contrast, individuals have inadequate guidance for tracking an ideal solution and rely more on social learning when only some solutions are rewarded (narrow fitness landscape).