convnet.jsの作法

概要

convnet.jsの作法を調べる。

convnetjs.Vol

基本単位
ネットへの入力、出力に使用する。
sx,syは、shapeサイズ。
depthは、length.
wは、value.
dwは、weight.

例 var x = new convnetjs.Vol([0, 1, 2, 3, 4]);

 + * : object = [object Object]
 |  + sx : number = 1
 |  + sy : number = 1
 |  + depth : number = 5
 |  + w : object = 0,1,2,3,4
 |  + dw : object = 0,0,0,0,0
 |  + get : function = function (x, y, d) {
            var ix = ((this.sx * y) + x) * this.depth + d;
            return this.w[ix];
        }
 |  + set : function = function (x, y, d, v) {
            var ix = ((this.sx * y) + x) * this.depth + d;
            this.w[ix] = v;
        }
 |  + add : function = function (x, y, d, v) {
            var ix = ((this.sx * y) + x) * this.depth + d;
            this.w[ix] += v;
        }
 |  + get_grad : function = function (x, y, d) {
            var ix = ((this.sx * y) + x) * this.depth + d;
            return this.dw[ix];
        }
 |  + set_grad : function = function (x, y, d, v) {
            var ix = ((this.sx * y) + x) * this.depth + d;
            this.dw[ix] = v;
        }
 |  + add_grad : function = function (x, y, d, v) {
            var ix = ((this.sx * y) + x) * this.depth + d;
            this.dw[ix] += v;
        }
 |  + cloneAndZero : function = function () { 
            return new Vol(this.sx, this.sy, this.depth, 0.0)
        }
 |  + clone : function = function () {
            var V = new Vol(this.sx, this.sy, this.depth, 0.0);
            var n = this.w.length;
            for (var i = 0; i < n; i++) 
            {
                V.w[i] = this.w[i];
            }
            return V;
        }
 |  + addFrom : function = function (V) { 
            for (var k = 0; k < this.w.length; k++) 
            {
                this.w[k] += V.w[k]; 
            }
        }
 |  + addFromScaled : function = function (V, a) {
            for (var k = 0; k < this.w.length; k++) 
            {
                this.w[k] += a * V.w[k];
            }
        }
 |  + setConst : function = function (a) { 
            for (var k = 0; k < this.w.length; k++)
            {
                this.w[k] = a;
            }
        }
 |  + toJSON : function = function () {
            var json = {}
            json.sx = this.sx;
            json.sy = this.sy;
            json.depth = this.depth;
            json.w = this.w;
            return json;
        }
 |  + fromJSON : function = function (json) {
            this.sx = json.sx;
            this.sy = json.sy;
            this.depth = json.depth;
            var n = this.sx * this.sy * this.depth;
            this.w = global.zeros(n);
            this.dw = global.zeros(n);
            for (var i = 0; i < n; i++) 
            {
                this.w[i] = json.w[i];
                //this.dw[i] = json.dw[i];
            }
        }

調査したコード

function print_r(obj) {
    var count_obj = 0;
    function _output(str) {
        document.writeln(str);
    }
    function _print_r(obj, name, level) {
        var s = "";
        if (obj == undefined || level > 1) return;
        for (var i = 0; i < level; i++) 
        { 
            s += " | "; 
        }
        s += " + " + name + " : " + typeof(obj) + " = " + obj;
        _output(s);
        if (name == "document" || typeof(obj) != "object") return;
        for (key in obj) 
        {
            if (count_obj++ > 100) return;
            _print_r(obj[key], key, level + 1);
        }
    }
    document.writeln("<textarea cols=80 rows=40>");
    _print_r(obj, "*", 0);
    document.writeln("</textarea>");
}

var x = new convnetjs.Vol([0, 1, 2, 3, 4]);
print_r(x);

成果物

以上。