use neura_graph::{Graph, Shape, Value};
pub fn rms(graph: &Graph, value: Value, weight: Value, floor: Value) -> Value {
let squares = graph.mul(value, value);
let mean = graph.mean_axis(squares, 3);
let scale = graph.recip(graph.sqrt(graph.add(mean, floor)));
graph.mul(graph.mul(value, scale), weight)
}
pub fn l2(graph: &Graph, value: Value, floor: Value) -> Value {
let squares = graph.mul(value, value);
let total = graph.sum_axis(squares, 3);
let scale = graph.recip(graph.sqrt(graph.add(total, floor)));
graph.mul(value, scale)
}
pub fn softplus(graph: &Graph, value: Value) -> Value {
let threshold = graph.fill(Shape::scalar(), 20.0);
let raised = graph.log(graph.add(graph.fill(Shape::scalar(), 1.0), graph.exp(value)));
graph.select(graph.greater(value, threshold), value, raised)
}
pub fn flatten(graph: &Graph, value: Value) -> Value {
let elements = graph.shape(value).elements();
graph.reshape(value, Shape::of([1, 1, 1, elements]))
}