25 lines
888 B
TOML
25 lines
888 B
TOML
# options of the Lévy-gradient-descent algorithms.
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[lgd]
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# hard stop after this many Lévy flights (0 = till mean-convergence test is satisfied).
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flight_times = 1000
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# batch size for mean-convergence test; 0 disables the test.
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batch = 0
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# random seed for Lévy generator; 0 = use current time.
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seed = 0
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# stopping threshold on batch-mean change.
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epsilon = 1e-5
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# std-dev of v for flight length = stddev_u / |stddev_v|^(1/beta).
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stddev_v = 1.0
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# stability index (1,2) controlling flight-length range; larger → shorter jumps.
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beta = 1.5
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# global step-size multiplier; larger → faster but possibly missed optima.
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alpha = 0.01
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# gradient-norm below which an orthogonal escape step is triggered.
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sigma = 1e-8
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# record only solutions whose objective ≤ lambda; negative = record all.
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lambda = -1.0
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# first-order moment coefficient.
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fmt = 0.5
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# second-order moment coefficient.
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smt = 0.05
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