Revisiting Glorot Initialization for Long-Range Linear Recurrences

Raja Giryes (Tel Aviv University) · ‪Yotam Alexander‬‏ (Tel Aviv University) · Noga Bar (Tel Aviv University) · Mariia Seleznova (Ludwig-Maximilians-Universität München) · Gitta Kutyniok (LMU München)
dimension-aware rescalingexploding signalsglorot initializationhidden stateinitializationinstabilitylong-range reasoninglong-sequence regimerecurrent initializationrecurrent neural networkssignal propagationspectral radiusstability theorytheoretical analysisvanishing signals

Proper initialization is critical for Recurrent Neural Networks (RNNs), particularly in long-range reasoning tasks, where repeated application of the same weight matrix can cause vanishing or exploding signals. A common baseline for linear recurrences is Glorot initialization, designed to ensure stable signal propagation