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kNN Classifications on a large dataset with different packages.
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| package main | |
| import ( | |
| "fmt" | |
| "github.com/amitkgupta/goodlearn/classifier/knn" | |
| "github.com/amitkgupta/goodlearn/csvparse" | |
| "github.com/amitkgupta/goodlearn/data/row" | |
| "runtime" | |
| "flag" | |
| "log" | |
| "os" | |
| "runtime/pprof" | |
| ) | |
| var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file") | |
| func main() { | |
| flag.Parse() | |
| if *cpuprofile != "" { | |
| f, err := os.Create(*cpuprofile) | |
| if err != nil { | |
| log.Fatal(err) | |
| } | |
| pprof.StartCPUProfile(f) | |
| defer pprof.StopCPUProfile() | |
| } | |
| runtime.GOMAXPROCS(runtime.NumCPU()) | |
| println("parsing test") | |
| validationSample, _ := csvparse.DatasetFromPath("many_features_test.csv", 0, 1) | |
| println("parsed test") | |
| println("parsing training") | |
| trainingSample, _ := csvparse.DatasetFromPath("many_features_training.csv", 0, 1) | |
| println("parsed training") | |
| c, _ := knn.NewKNNClassifier(1) | |
| c.Train(trainingSample) | |
| var totalCorrect float32 = 0 | |
| successChannel := make(chan float32, 10000) //len(validationSample)) | |
| for i := 0; i < 10000; i++ { | |
| test, _ := validationSample.Row(i) | |
| go func(t row.Row, j int) { | |
| if j%5 == 0 { | |
| println("classifying", j) | |
| } | |
| cl, _ := c.Classify(test) | |
| if cl.Equals(test.Target()) { | |
| successChannel <- 1 | |
| } else { | |
| successChannel <- 0 | |
| } | |
| if j%5 == 0 { | |
| println("classified", j) | |
| } | |
| }(test, i) | |
| } | |
| for i := 0; i < 10000; i++ { //len(validationSample); i++ { | |
| totalCorrect += <-successChannel | |
| } | |
| fmt.Println(float32(totalCorrect)) // / float32(len(validationSample))) | |
| } | |
| // Takes about 50s on the beefy machine, *with* goodlearn optimized | |
| // - replace math.Pow(x,2) with x*x in distance.go | |
| // - SliceFromStrings was super slow, but assuming contiguous features and all of them are floats, much faster | |
| // Outputs unreasonable answer: 10000 |
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| <?xml version="1.0" encoding="UTF-8" standalone="no"?> | |
| <!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" | |
| "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd"> | |
| <!-- Generated by graphviz version 2.36.0 (20140111.2315) | |
| --> | |
| <!-- Title: bbb; 556 samples Pages: 1 --> | |
| <svg width="100%" height="100%" | |
| xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"> | |
| <script type="text/ecmascript"><![CDATA[ | |
| // SVGPan | |
| // http://www.cyberz.org/blog/2009/12/08/svgpan-a-javascript-svg-panzoomdrag-library/ | |
| // Local modification: if(true || ...) below to force panning, never moving. | |
| // Local modification: add clamping to fix bug in handleMouseWheel. | |
| /** | |
| * SVGPan library 1.2 | |
| * ==================== | |
| * | |
| * Given an unique existing element with id "viewport", including the | |
| * the library into any SVG adds the following capabilities: | |
| * | |
| * - Mouse panning | |
| * - Mouse zooming (using the wheel) | |
| * - Object dargging | |
| * | |
| * Known issues: | |
| * | |
| * - Zooming (while panning) on Safari has still some issues | |
| * | |
| * Releases: | |
| * | |
| * 1.2, Sat Mar 20 08:42:50 GMT 2010, Zeng Xiaohui | |
| * Fixed a bug with browser mouse handler interaction | |
| * | |
| * 1.1, Wed Feb 3 17:39:33 GMT 2010, Zeng Xiaohui | |
| * Updated the zoom code to support the mouse wheel on Safari/Chrome | |
| * | |
| * 1.0, Andrea Leofreddi | |
| * First release | |
| * | |
| * This code is licensed under the following BSD license: | |
| * | |
| * Copyright 2009-2010 Andrea Leofreddi <[email protected]>. All rights reserved. | |
| * | |
| * Redistribution and use in source and binary forms, with or without modification, are | |
| * permitted provided that the following conditions are met: | |
| * | |
| * 1. Redistributions of source code must retain the above copyright notice, this list of | |
| * conditions and the following disclaimer. | |
| * | |
| * 2. Redistributions in binary form must reproduce the above copyright notice, this list | |
| * of conditions and the following disclaimer in the documentation and/or other materials | |
| * provided with the distribution. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY Andrea Leofreddi ``AS IS'' AND ANY EXPRESS OR IMPLIED | |
| * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND | |
| * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL Andrea Leofreddi OR | |
| * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR | |
| * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON | |
| * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING | |
| * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF | |
| * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| * | |
| * The views and conclusions contained in the software and documentation are those of the | |
| * authors and should not be interpreted as representing official policies, either expressed | |
| * or implied, of Andrea Leofreddi. | |
| */ | |
| var root = document.documentElement; | |
| var state = 'none', stateTarget, stateOrigin, stateTf; | |
| setupHandlers(root); | |
| /** | |
| * Register handlers | |
| */ | |
| function setupHandlers(root){ | |
| setAttributes(root, { | |
| "onmouseup" : "add(evt)", | |
| "onmousedown" : "handleMouseDown(evt)", | |
| "onmousemove" : "handleMouseMove(evt)", | |
| "onmouseup" : "handleMouseUp(evt)", | |
| //"onmouseout" : "handleMouseUp(evt)", // Decomment this to stop the pan functionality when dragging out of the SVG element | |
| }); | |
| if(navigator.userAgent.toLowerCase().indexOf('webkit') >= 0) | |
| window.addEventListener('mousewheel', handleMouseWheel, false); // Chrome/Safari | |
| else | |
| window.addEventListener('DOMMouseScroll', handleMouseWheel, false); // Others | |
| var g = svgDoc.getElementById("svg"); | |
| g.width = "100%"; | |
| g.height = "100%"; | |
| } | |
| /** | |
| * Instance an SVGPoint object with given event coordinates. | |
| */ | |
| function getEventPoint(evt) { | |
| var p = root.createSVGPoint(); | |
| p.x = evt.clientX; | |
| p.y = evt.clientY; | |
| return p; | |
| } | |
| /** | |
| * Sets the current transform matrix of an element. | |
| */ | |
| function setCTM(element, matrix) { | |
| var s = "matrix(" + matrix.a + "," + matrix.b + "," + matrix.c + "," + matrix.d + "," + matrix.e + "," + matrix.f + ")"; | |
| element.setAttribute("transform", s); | |
| } | |
| /** | |
| * Dumps a matrix to a string (useful for debug). | |
| */ | |
| function dumpMatrix(matrix) { | |
| var s = "[ " + matrix.a + ", " + matrix.c + ", " + matrix.e + "\n " + matrix.b + ", " + matrix.d + ", " + matrix.f + "\n 0, 0, 1 ]"; | |
| return s; | |
| } | |
| /** | |
| * Sets attributes of an element. | |
| */ | |
| function setAttributes(element, attributes){ | |
| for (i in attributes) | |
| element.setAttributeNS(null, i, attributes[i]); | |
| } | |
| /** | |
| * Handle mouse move event. | |
| */ | |
| function handleMouseWheel(evt) { | |
| if(evt.preventDefault) | |
| evt.preventDefault(); | |
| evt.returnValue = false; | |
| var svgDoc = evt.target.ownerDocument; | |
| var delta; | |
| if(evt.wheelDelta) | |
| delta = evt.wheelDelta / 3600; // Chrome/Safari | |
| else | |
| delta = evt.detail / -90; // Mozilla | |
| var z = 1 + delta; // Zoom factor: 0.9/1.1 | |
| // Clamp to reasonable values. | |
| // The 0.1 check is important because | |
| // a very large scroll can turn into a | |
| // negative z, which rotates the image 180 degrees. | |
| if(z < 0.1) | |
| z = 0.1; | |
| if(z > 10.0) | |
| z = 10.0; | |
| var g = svgDoc.getElementById("viewport"); | |
| var p = getEventPoint(evt); | |
| p = p.matrixTransform(g.getCTM().inverse()); | |
| // Compute new scale matrix in current mouse position | |
| var k = root.createSVGMatrix().translate(p.x, p.y).scale(z).translate(-p.x, -p.y); | |
| setCTM(g, g.getCTM().multiply(k)); | |
| stateTf = stateTf.multiply(k.inverse()); | |
| } | |
| /** | |
| * Handle mouse move event. | |
| */ | |
| function handleMouseMove(evt) { | |
| if(evt.preventDefault) | |
| evt.preventDefault(); | |
| evt.returnValue = false; | |
| var svgDoc = evt.target.ownerDocument; | |
| var g = svgDoc.getElementById("viewport"); | |
| if(state == 'pan') { | |
| // Pan mode | |
| var p = getEventPoint(evt).matrixTransform(stateTf); | |
| setCTM(g, stateTf.inverse().translate(p.x - stateOrigin.x, p.y - stateOrigin.y)); | |
| } else if(state == 'move') { | |
| // Move mode | |
| var p = getEventPoint(evt).matrixTransform(g.getCTM().inverse()); | |
| setCTM(stateTarget, root.createSVGMatrix().translate(p.x - stateOrigin.x, p.y - stateOrigin.y).multiply(g.getCTM().inverse()).multiply(stateTarget.getCTM())); | |
| stateOrigin = p; | |
| } | |
| } | |
| /** | |
| * Handle click event. | |
| */ | |
| function handleMouseDown(evt) { | |
| if(evt.preventDefault) | |
| evt.preventDefault(); | |
| evt.returnValue = false; | |
| var svgDoc = evt.target.ownerDocument; | |
| var g = svgDoc.getElementById("viewport"); | |
| if(true || evt.target.tagName == "svg") { | |
| // Pan mode | |
| state = 'pan'; | |
| stateTf = g.getCTM().inverse(); | |
| stateOrigin = getEventPoint(evt).matrixTransform(stateTf); | |
| } else { | |
| // Move mode | |
| state = 'move'; | |
| stateTarget = evt.target; | |
| stateTf = g.getCTM().inverse(); | |
| stateOrigin = getEventPoint(evt).matrixTransform(stateTf); | |
| } | |
| } | |
| /** | |
| * Handle mouse button release event. | |
| */ | |
| function handleMouseUp(evt) { | |
| if(evt.preventDefault) | |
| evt.preventDefault(); | |
| evt.returnValue = false; | |
| var svgDoc = evt.target.ownerDocument; | |
| if(state == 'pan' || state == 'move') { | |
| // Quit pan mode | |
| state = ''; | |
| } | |
| } | |
| ]]></script> | |
| <g id="viewport" transform="translate(0,0)"> | |
| <g id="viewport" class="graph" transform="scale(1 1) rotate(0) translate(4 1716)"> | |
| <title>bbb; 556 samples</title> | |
| <polygon fill="white" stroke="none" points="-4,4 -4,-1716 1149,-1716 1149,4 -4,4"/> | |
| <!-- Legend --> | |
| <g id="node1" class="node"><title>Legend</title> | |
| <text text-anchor="start" x="8" y="-1688.8" font-family="Times,serif" font-size="24.00">bbb</text> | |
| <text text-anchor="start" x="8" y="-1662.8" font-family="Times,serif" font-size="24.00">Total samples: 556</text> | |
| <text text-anchor="start" x="8" y="-1636.8" font-family="Times,serif" font-size="24.00">Focusing on: 556</text> | |
| <text text-anchor="start" x="8" y="-1610.8" font-family="Times,serif" font-size="24.00">Dropped nodes with <= 2 abs(samples)</text> | |
| <text text-anchor="start" x="8" y="-1584.8" font-family="Times,serif" font-size="24.00">Dropped edges with <= 0 samples</text> | |
| </g> | |
| <!-- N1 --> | |
| <g id="node2" class="node"><title>N1</title> | |
| <polygon fill="none" stroke="black" points="482.25,-1660.5 409.75,-1660.5 409.75,-1625.5 482.25,-1625.5 482.25,-1660.5"/> | |
| <text text-anchor="middle" x="446" y="-1650.1" font-family="Times,serif" font-size="8.00">runtime.gosched0</text> | |
| <text text-anchor="end" x="474.5" y="-1641.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="474.5" y="-1632.1" font-family="Times,serif" font-size="8.00">of 551 (99.1%)</text> | |
| </g> | |
| <!-- N2 --> | |
| <g id="node3" class="node"><title>N2</title> | |
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| <text text-anchor="end" x="470.5" y="-1493.1" font-family="Times,serif" font-size="8.00">of 488 (87.8%)</text> | |
| </g> | |
| <!-- N1->N2 --> | |
| <g id="edge2" class="edge"><title>N1->N2</title> | |
| <path fill="none" stroke="black" stroke-width="2" d="M446,-1625.47C446,-1602.23 446,-1559.61 446,-1531.8"/> | |
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| <!-- N1->N7 --> | |
| <g id="edge32" class="edge"><title>N1->N7</title> | |
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| </g> | |
| <!-- N2->N3 --> | |
| <g id="edge16" class="edge"><title>N2->N3</title> | |
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| <text text-anchor="end" x="774" y="-1191.32" font-family="Times,serif" font-size="49.60">384 (69.1%)</text> | |
| </g> | |
| <!-- N3->N4 --> | |
| <g id="edge3" class="edge"><title>N3->N4</title> | |
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| </g> | |
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| <text text-anchor="end" x="937.5" y="-1228.42" font-family="Times,serif" font-size="10.10">1 (0.2%)</text> | |
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| </g> | |
| <!-- N5->N6 --> | |
| <g id="edge12" class="edge"><title>N5->N6</title> | |
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| </g> | |
| <!-- N6->N8 --> | |
| <g id="edge6" class="edge"><title>N6->N8</title> | |
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| </g> | |
| <!-- N9 --> | |
| <g id="node10" class="node"><title>N9</title> | |
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| <text text-anchor="end" x="967.5" y="-1077.14" font-family="Times,serif" font-size="11.70">of 32 (5.8%)</text> | |
| </g> | |
| <!-- N6->N9 --> | |
| <g id="edge19" class="edge"><title>N6->N9</title> | |
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| <!-- N10 --> | |
| <g id="node11" class="node"><title>N10</title> | |
| <polygon fill="none" stroke="black" points="1051.5,-1110.5 994.5,-1110.5 994.5,-1075.5 1051.5,-1075.5 1051.5,-1110.5"/> | |
| <text text-anchor="middle" x="1023" y="-1100.1" font-family="Times,serif" font-size="8.00">bytes.Split</text> | |
| <text text-anchor="end" x="1044" y="-1091.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="1044" y="-1082.1" font-family="Times,serif" font-size="8.00">of 29 (5.2%)</text> | |
| </g> | |
| <!-- N6->N10 --> | |
| <g id="edge14" class="edge"><title>N6->N10</title> | |
| <path fill="none" stroke="black" d="M916.176,-1210.22C938.513,-1185.92 976.41,-1144.69 1000.55,-1118.43"/> | |
| <polygon fill="black" stroke="black" points="1003.37,-1120.53 1007.56,-1110.8 998.217,-1115.79 1003.37,-1120.53"/> | |
| <text text-anchor="middle" x="986" y="-1142.3" font-family="Times,serif" font-size="14.00">29</text> | |
| </g> | |
| <!-- N7->N5 --> | |
| <g id="edge23" class="edge"><title>N7->N5</title> | |
| <path fill="none" stroke="black" d="M708.339,-1486.42C731.093,-1466.92 769.022,-1434.41 794.748,-1412.36"/> | |
| <polygon fill="black" stroke="black" points="797.323,-1414.76 802.637,-1405.6 792.767,-1409.45 797.323,-1414.76"/> | |
| <text text-anchor="middle" x="754" y="-1456.3" font-family="Times,serif" font-size="14.00">63</text> | |
| </g> | |
| <!-- N12 --> | |
| <g id="node13" class="node"><title>N12</title> | |
| <polygon fill="none" stroke="black" points="911,-1003.5 815,-1003.5 815,-968.5 911,-968.5 911,-1003.5"/> | |
| <text text-anchor="middle" x="863" y="-993.1" font-family="Times,serif" font-size="8.00">main.byteSliceTofloat64</text> | |
| <text text-anchor="end" x="903" y="-984.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="903" y="-975.1" font-family="Times,serif" font-size="8.00">of 26 (4.7%)</text> | |
| </g> | |
| <!-- N9->N12 --> | |
| <g id="edge25" class="edge"><title>N9->N12</title> | |
| <path fill="none" stroke="black" d="M890.492,-1069.47C884.984,-1052.95 877.491,-1030.47 871.719,-1013.16"/> | |
| <polygon fill="black" stroke="black" points="875.03,-1012.02 868.547,-1003.64 868.389,-1014.23 875.03,-1012.02"/> | |
| <text text-anchor="middle" x="889" y="-1036.3" font-family="Times,serif" font-size="14.00">26</text> | |
| </g> | |
| <!-- N28 --> | |
| <g id="node29" class="node"><title>N28</title> | |
| <polygon fill="none" stroke="black" points="1005,-899.5 929,-899.5 929,-864.5 1005,-864.5 1005,-899.5"/> | |
| <text text-anchor="middle" x="967" y="-889.1" font-family="Times,serif" font-size="8.00">runtime.makeslice</text> | |
| <text text-anchor="end" x="997" y="-880.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="997" y="-871.1" font-family="Times,serif" font-size="8.00">of 7 (1.3%)</text> | |
| </g> | |
| <!-- N9->N28 --> | |
| <g id="edge5" class="edge"><title>N9->N28</title> | |
| <path fill="none" stroke="black" d="M905.516,-1069.24C918.395,-1030.22 944.615,-950.803 958.279,-909.416"/> | |
| <polygon fill="black" stroke="black" points="961.655,-910.354 961.466,-899.761 955.008,-908.16 961.655,-910.354"/> | |
| <text text-anchor="middle" x="944.5" y="-982.3" font-family="Times,serif" font-size="14.00">3</text> | |
| </g> | |
| <!-- N11 --> | |
| <g id="node12" class="node"><title>N11</title> | |
| <polygon fill="none" stroke="black" points="1073.25,-1014 972.75,-1014 972.75,-958 1073.25,-958 1073.25,-1014"/> | |
| <text text-anchor="middle" x="1023" y="-998.24" font-family="Times,serif" font-size="14.70">bytes.genSplit</text> | |
| <text text-anchor="end" x="1065.5" y="-982.24" font-family="Times,serif" font-size="14.70">10 (1.8%)</text> | |
| <text text-anchor="end" x="1065.5" y="-966.24" font-family="Times,serif" font-size="14.70">of 29 (5.2%)</text> | |
| </g> | |
| <!-- N10->N11 --> | |
| <g id="edge10" class="edge"><title>N10->N11</title> | |
| <path fill="none" stroke="black" d="M1023,-1075.13C1023,-1061.5 1023,-1041.79 1023,-1024.47"/> | |
| <polygon fill="black" stroke="black" points="1026.5,-1024.07 1023,-1014.07 1019.5,-1024.07 1026.5,-1024.07"/> | |
| <text text-anchor="middle" x="1030" y="-1036.3" font-family="Times,serif" font-size="14.00">29</text> | |
| </g> | |
| <!-- N15 --> | |
| <g id="node16" class="node"><title>N15</title> | |
| <polygon fill="none" stroke="black" points="1100.25,-905.5 1023.75,-905.5 1023.75,-858.5 1100.25,-858.5 1100.25,-905.5"/> | |
| <text text-anchor="middle" x="1062" y="-892.14" font-family="Times,serif" font-size="11.70">bytes.Count</text> | |
| <text text-anchor="end" x="1092.5" y="-879.14" font-family="Times,serif" font-size="11.70">3 (0.5%)</text> | |
| <text text-anchor="end" x="1092.5" y="-866.14" font-family="Times,serif" font-size="11.70">of 15 (2.7%)</text> | |
| </g> | |
| <!-- N11->N15 --> | |
| <g id="edge17" class="edge"><title>N11->N15</title> | |
| <path fill="none" stroke="black" d="M1033.35,-957.934C1038.36,-944.826 1044.42,-928.99 1049.67,-915.259"/> | |
| <polygon fill="black" stroke="black" points="1053.02,-916.293 1053.32,-905.702 1046.48,-913.793 1053.02,-916.293"/> | |
| <text text-anchor="middle" x="1052" y="-928.3" font-family="Times,serif" font-size="14.00">15</text> | |
| </g> | |
| <!-- N11->N28 --> | |
| <g id="edge22" class="edge"><title>N11->N28</title> | |
| <path fill="none" stroke="black" d="M1008.14,-957.934C999.714,-942.587 989.235,-923.5 980.962,-908.431"/> | |
| <polygon fill="black" stroke="black" points="984.015,-906.719 976.134,-899.637 977.879,-910.088 984.015,-906.719"/> | |
| <text text-anchor="middle" x="999.5" y="-928.3" font-family="Times,serif" font-size="14.00">4</text> | |
| </g> | |
| <!-- N13 --> | |
| <g id="node14" class="node"><title>N13</title> | |
| <polygon fill="none" stroke="black" points="796.25,-904 697.75,-904 697.75,-860 796.25,-860 796.25,-904"/> | |
| <text text-anchor="middle" x="747" y="-891.2" font-family="Times,serif" font-size="11.00">strconv.ParseFloat</text> | |
| <text text-anchor="end" x="788.5" y="-879.2" font-family="Times,serif" font-size="11.00">2 (0.4%)</text> | |
| <text text-anchor="end" x="788.5" y="-867.2" font-family="Times,serif" font-size="11.00">of 18 (3.2%)</text> | |
| </g> | |
| <!-- N12->N13 --> | |
| <g id="edge28" class="edge"><title>N12->N13</title> | |
| <path fill="none" stroke="black" d="M844.104,-968.385C826.457,-952.868 799.769,-929.401 778.835,-910.993"/> | |
| <polygon fill="black" stroke="black" points="780.945,-908.188 771.124,-904.213 776.323,-913.445 780.945,-908.188"/> | |
| <text text-anchor="middle" x="815" y="-928.3" font-family="Times,serif" font-size="14.00">18</text> | |
| </g> | |
| <!-- N23 --> | |
| <g id="node24" class="node"><title>N23</title> | |
| <polygon fill="none" stroke="black" points="911,-899.5 815,-899.5 815,-864.5 911,-864.5 911,-899.5"/> | |
| <text text-anchor="middle" x="863" y="-889.1" font-family="Times,serif" font-size="8.00">runtime.slicebytetostring</text> | |
| <text text-anchor="end" x="903" y="-880.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="903" y="-871.1" font-family="Times,serif" font-size="8.00">of 8 (1.4%)</text> | |
| </g> | |
| <!-- N12->N23 --> | |
| <g id="edge15" class="edge"><title>N12->N23</title> | |
| <path fill="none" stroke="black" d="M863,-968.157C863,-952.264 863,-928.181 863,-909.676"/> | |
| <polygon fill="black" stroke="black" points="866.5,-909.53 863,-899.53 859.5,-909.53 866.5,-909.53"/> | |
| <text text-anchor="middle" x="866.5" y="-928.3" font-family="Times,serif" font-size="14.00">8</text> | |
| </g> | |
| <!-- N14 --> | |
| <g id="node15" class="node"><title>N14</title> | |
| <polygon fill="none" stroke="black" points="788.5,-805.5 705.5,-805.5 705.5,-758.5 788.5,-758.5 788.5,-805.5"/> | |
| <text text-anchor="middle" x="747" y="-792.14" font-family="Times,serif" font-size="11.70">strconv.atof32</text> | |
| <text text-anchor="end" x="781" y="-779.14" font-family="Times,serif" font-size="11.70">3 (0.5%)</text> | |
| <text text-anchor="end" x="781" y="-766.14" font-family="Times,serif" font-size="11.70">of 16 (2.9%)</text> | |
| </g> | |
| <!-- N13->N14 --> | |
| <g id="edge30" class="edge"><title>N13->N14</title> | |
| <path fill="none" stroke="black" d="M747,-859.735C747,-846.87 747,-830.202 747,-815.689"/> | |
| <polygon fill="black" stroke="black" points="750.5,-815.587 747,-805.587 743.5,-815.587 750.5,-815.587"/> | |
| <text text-anchor="middle" x="754" y="-828.3" font-family="Times,serif" font-size="14.00">16</text> | |
| </g> | |
| <!-- N19 --> | |
| <g id="node20" class="node"><title>N19</title> | |
| <polygon fill="none" stroke="black" points="807.25,-685 686.75,-685 686.75,-645 807.25,-645 807.25,-685"/> | |
| <text text-anchor="middle" x="747" y="-669.24" font-family="Times,serif" font-size="14.70">strconv.readFloat</text> | |
| <text text-anchor="end" x="799.5" y="-653.24" font-family="Times,serif" font-size="14.70">10 (1.8%)</text> | |
| </g> | |
| <!-- N14->N19 --> | |
| <g id="edge18" class="edge"><title>N14->N19</title> | |
| <path fill="none" stroke="black" d="M747,-758.28C747,-740.275 747,-714.982 747,-695.428"/> | |
| <polygon fill="black" stroke="black" points="750.5,-695.238 747,-685.238 743.5,-695.238 750.5,-695.238"/> | |
| <text text-anchor="middle" x="754" y="-718.3" font-family="Times,serif" font-size="14.00">10</text> | |
| </g> | |
| <!-- N17 --> | |
| <g id="node18" class="node"><title>N17</title> | |
| <polygon fill="none" stroke="black" points="1099,-799.5 1031,-799.5 1031,-764.5 1099,-764.5 1099,-799.5"/> | |
| <text text-anchor="middle" x="1065" y="-789.1" font-family="Times,serif" font-size="8.00">bytes.IndexByte</text> | |
| <text text-anchor="end" x="1091" y="-780.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="1091" y="-771.1" font-family="Times,serif" font-size="8.00">of 12 (2.2%)</text> | |
| </g> | |
| <!-- N15->N17 --> | |
| <g id="edge29" class="edge"><title>N15->N17</title> | |
| <path fill="none" stroke="black" d="M1062.7,-858.271C1063.14,-843.893 1063.71,-825.23 1064.17,-810.086"/> | |
| <polygon fill="black" stroke="black" points="1067.68,-809.894 1064.49,-799.791 1060.68,-809.679 1067.68,-809.894"/> | |
| <text text-anchor="middle" x="1070" y="-828.3" font-family="Times,serif" font-size="14.00">12</text> | |
| </g> | |
| <!-- N16 --> | |
| <g id="node17" class="node"><title>N16</title> | |
| <polygon fill="none" stroke="black" points="940.25,-503.5 829.75,-503.5 829.75,-450.5 940.25,-450.5 940.25,-503.5"/> | |
| <text text-anchor="middle" x="885" y="-488.94" font-family="Times,serif" font-size="13.20">runtime.mallocgc</text> | |
| <text text-anchor="end" x="932.5" y="-473.94" font-family="Times,serif" font-size="13.20">6 (1.1%)</text> | |
| <text text-anchor="end" x="932.5" y="-458.94" font-family="Times,serif" font-size="13.20">of 14 (2.5%)</text> | |
| </g> | |
| <!-- N21 --> | |
| <g id="node22" class="node"><title>N21</title> | |
| <polygon fill="none" stroke="black" points="931.25,-397.5 838.75,-397.5 838.75,-362.5 931.25,-362.5 931.25,-397.5"/> | |
| <text text-anchor="middle" x="885" y="-387.1" font-family="Times,serif" font-size="8.00">runtime.MCache_Refill</text> | |
| <text text-anchor="end" x="923.5" y="-378.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="923.5" y="-369.1" font-family="Times,serif" font-size="8.00">of 8 (1.4%)</text> | |
| </g> | |
| <!-- N16->N21 --> | |
| <g id="edge4" class="edge"><title>N16->N21</title> | |
| <path fill="none" stroke="black" d="M885,-450.041C885,-436.993 885,-421.195 885,-408.005"/> | |
| <polygon fill="black" stroke="black" points="888.5,-407.656 885,-397.656 881.5,-407.656 888.5,-407.656"/> | |
| <text text-anchor="middle" x="888.5" y="-420.3" font-family="Times,serif" font-size="14.00">8</text> | |
| </g> | |
| <!-- N18 --> | |
| <g id="node19" class="node"><title>N18</title> | |
| <polygon fill="none" stroke="black" points="1144.5,-686 987.5,-686 987.5,-644 1144.5,-644 1144.5,-686"/> | |
| <text text-anchor="middle" x="1066" y="-669.76" font-family="Times,serif" font-size="15.30">runtime.indexbytebody</text> | |
| <text text-anchor="end" x="1137" y="-652.76" font-family="Times,serif" font-size="15.30">12 (2.2%)</text> | |
| </g> | |
| <!-- N17->N18 --> | |
| <g id="edge11" class="edge"><title>N17->N18</title> | |
| <path fill="none" stroke="black" d="M1065.15,-764.031C1065.3,-746.205 1065.55,-717.805 1065.74,-696.151"/> | |
| <polygon fill="black" stroke="black" points="1069.24,-696.168 1065.82,-686.138 1062.24,-696.108 1069.24,-696.168"/> | |
| <text text-anchor="middle" x="1072" y="-718.3" font-family="Times,serif" font-size="14.00">12</text> | |
| </g> | |
| <!-- N20 --> | |
| <g id="node21" class="node"><title>N20</title> | |
| <polygon fill="none" stroke="black" points="933.25,-221.5 836.75,-221.5 836.75,-174.5 933.25,-174.5 933.25,-221.5"/> | |
| <text text-anchor="middle" x="885" y="-207.74" font-family="Times,serif" font-size="12.20">MCentral_Grow</text> | |
| <text text-anchor="end" x="925.5" y="-194.74" font-family="Times,serif" font-size="12.20">4 (0.7%)</text> | |
| <text text-anchor="end" x="925.5" y="-181.74" font-family="Times,serif" font-size="12.20">of 8 (1.4%)</text> | |
| </g> | |
| <!-- N29 --> | |
| <g id="node30" class="node"><title>N29</title> | |
| <polygon fill="none" stroke="black" points="929.25,-121.5 840.75,-121.5 840.75,-86.5 929.25,-86.5 929.25,-121.5"/> | |
| <text text-anchor="middle" x="885" y="-111.1" font-family="Times,serif" font-size="8.00">runtime.MHeap_Alloc</text> | |
| <text text-anchor="end" x="921.5" y="-102.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="921.5" y="-93.1" font-family="Times,serif" font-size="8.00">of 4 (0.7%)</text> | |
| </g> | |
| <!-- N20->N29 --> | |
| <g id="edge7" class="edge"><title>N20->N29</title> | |
| <path fill="none" stroke="black" d="M885,-174.258C885,-161.411 885,-145.278 885,-131.816"/> | |
| <polygon fill="black" stroke="black" points="888.5,-131.705 885,-121.706 881.5,-131.706 888.5,-131.705"/> | |
| <text text-anchor="middle" x="888.5" y="-144.3" font-family="Times,serif" font-size="14.00">4</text> | |
| </g> | |
| <!-- N22 --> | |
| <g id="node23" class="node"><title>N22</title> | |
| <polygon fill="none" stroke="black" points="942,-309.5 828,-309.5 828,-274.5 942,-274.5 942,-309.5"/> | |
| <text text-anchor="middle" x="885" y="-299.1" font-family="Times,serif" font-size="8.00">runtime.MCentral_CacheSpan</text> | |
| <text text-anchor="end" x="934" y="-290.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="934" y="-281.1" font-family="Times,serif" font-size="8.00">of 8 (1.4%)</text> | |
| </g> | |
| <!-- N21->N22 --> | |
| <g id="edge8" class="edge"><title>N21->N22</title> | |
| <path fill="none" stroke="black" d="M885,-362.418C885,-350.283 885,-333.564 885,-319.575"/> | |
| <polygon fill="black" stroke="black" points="888.5,-319.531 885,-309.531 881.5,-319.531 888.5,-319.531"/> | |
| <text text-anchor="middle" x="888.5" y="-332.3" font-family="Times,serif" font-size="14.00">8</text> | |
| </g> | |
| <!-- N22->N20 --> | |
| <g id="edge27" class="edge"><title>N22->N20</title> | |
| <path fill="none" stroke="black" d="M885,-274.126C885,-262.271 885,-246.032 885,-231.684"/> | |
| <polygon fill="black" stroke="black" points="888.5,-231.66 885,-221.66 881.5,-231.66 888.5,-231.66"/> | |
| <text text-anchor="middle" x="888.5" y="-244.3" font-family="Times,serif" font-size="14.00">8</text> | |
| </g> | |
| <!-- N25 --> | |
| <g id="node26" class="node"><title>N25</title> | |
| <polygon fill="none" stroke="black" points="890.25,-739.5 835.75,-739.5 835.75,-704.5 890.25,-704.5 890.25,-739.5"/> | |
| <text text-anchor="middle" x="863" y="-729.1" font-family="Times,serif" font-size="8.00">gostringsize</text> | |
| <text text-anchor="end" x="882.5" y="-720.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="882.5" y="-711.1" font-family="Times,serif" font-size="8.00">of 7 (1.3%)</text> | |
| </g> | |
| <!-- N23->N25 --> | |
| <g id="edge13" class="edge"><title>N23->N25</title> | |
| <path fill="none" stroke="black" d="M863,-864.39C863,-837.198 863,-782.93 863,-750.104"/> | |
| <polygon fill="black" stroke="black" points="866.5,-749.863 863,-739.863 859.5,-749.863 866.5,-749.863"/> | |
| <text text-anchor="middle" x="866.5" y="-828.3" font-family="Times,serif" font-size="14.00">7</text> | |
| </g> | |
| <!-- N24 --> | |
| <g id="node25" class="node"><title>N24</title> | |
| <polygon fill="none" stroke="black" points="948,-591.5 894,-591.5 894,-556.5 948,-556.5 948,-591.5"/> | |
| <text text-anchor="middle" x="921" y="-581.1" font-family="Times,serif" font-size="8.00">cnew</text> | |
| <text text-anchor="end" x="940" y="-572.1" font-family="Times,serif" font-size="8.00">0 (0.0%)</text> | |
| <text text-anchor="end" x="940" y="-563.1" font-family="Times,serif" font-size="8.00">of 7 (1.3%)</text> | |
| </g> | |
| <!-- N24->N16 --> | |
| <g id="edge31" class="edge"><title>N24->N16</title> | |
| <path fill="none" stroke="black" d="M914.729,-556.452C910.201,-544.504 903.92,-527.927 898.296,-513.088"/> | |
| <polygon fill="black" stroke="black" points="901.538,-511.764 894.721,-503.654 894.992,-514.245 901.538,-511.764"/> | |
| <text text-anchor="middle" x="910.5" y="-526.3" font-family="Times,serif" font-size="14.00">7</text> | |
| </g> | |
| <!-- N25->N16 --> | |
| <g id="edge21" class="edge"><title>N25->N16</title> | |
| <path fill="none" stroke="black" d="M864.512,-704.298C868.052,-665.193 876.944,-566.985 881.767,-513.709"/> | |
| <polygon fill="black" stroke="black" points="885.259,-513.959 882.675,-503.684 878.287,-513.327 885.259,-513.959"/> | |
| <text text-anchor="middle" x="875.5" y="-614.3" font-family="Times,serif" font-size="14.00">7</text> | |
| </g> | |
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| <g id="node27" class="node"><title>N26</title> | |
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| package main | |
| import ( | |
| "bytes" | |
| "flag" | |
| "fmt" | |
| "io/ioutil" | |
| "log" | |
| "math" | |
| "os" | |
| "runtime" | |
| "runtime/pprof" | |
| "strconv" | |
| ) | |
| type LabelWithFeatures struct { | |
| Label []byte | |
| Features []float64 | |
| } | |
| func NewLabelWithFeatures(parsedLine [][]byte) LabelWithFeatures { | |
| label := parsedLine[0] | |
| features := make([]float64, len(parsedLine)-1) | |
| for i, feature := range parsedLine { | |
| // skip label | |
| if i == 0 { | |
| continue | |
| } | |
| features[i-1] = byteSliceTofloat64(feature) | |
| } | |
| return LabelWithFeatures{label, features} | |
| } | |
| var newline = []byte("\n") | |
| var comma = []byte(",") | |
| func byteSliceTofloat64(b []byte) float64 { | |
| x, _ := strconv.ParseFloat(string(b), 32) | |
| return float64(x) | |
| } | |
| func parseCSVFile(filePath string) []LabelWithFeatures { | |
| fileContent, _ := ioutil.ReadFile(filePath) | |
| lines := bytes.Split(fileContent, newline) | |
| numRows := len(lines) | |
| labelsWithFeatures := make([]LabelWithFeatures, numRows-2) | |
| for i, line := range lines { | |
| // skip headers | |
| if i == 0 || i == numRows-1 { | |
| continue | |
| } | |
| labelsWithFeatures[i-1] = NewLabelWithFeatures(bytes.Split(line, comma)) | |
| } | |
| return labelsWithFeatures | |
| } | |
| func squareDistanceWithBailout(features1, features2 []float64, bailout float64) (d float64) { | |
| for i := 0; i < len(features1); i++ { | |
| x := features1[i] - features2[i] | |
| d += x * x | |
| if d > bailout { | |
| break | |
| } | |
| } | |
| return | |
| } | |
| var trainingSample = parseCSVFile("many_features_training.csv") | |
| func classify(features []float64) (label []byte) { | |
| label = trainingSample[0].Label | |
| d := squareDistanceWithBailout(features, trainingSample[0].Features, math.MaxFloat32) | |
| for _, row := range trainingSample { | |
| dNew := squareDistanceWithBailout(features, row.Features, d) | |
| if dNew < d { | |
| label = row.Label | |
| d = dNew | |
| } | |
| } | |
| return | |
| } | |
| var cpuprofile = flag.String("cpuprofile", "", "write cpu profile to file") | |
| func main() { | |
| flag.Parse() | |
| if *cpuprofile != "" { | |
| f, err := os.Create(*cpuprofile) | |
| if err != nil { | |
| log.Fatal(err) | |
| } | |
| pprof.StartCPUProfile(f) | |
| defer pprof.StopCPUProfile() | |
| } | |
| runtime.GOMAXPROCS(runtime.NumCPU()) | |
| println("parsing test") | |
| validationSample := parseCSVFile("many_features_test.csv") | |
| println("parsed test") | |
| var totalCorrect float64 = 0 | |
| successChannel := make(chan float64, 10000) //len(validationSample)) | |
| for i := 0; i < 10000; i++ { | |
| test := validationSample[i] | |
| go func(t LabelWithFeatures, j int) { | |
| if j%5 == 0 { | |
| println("classifying", j) | |
| } | |
| if string(t.Label) == string(classify(t.Features)) { | |
| successChannel <- 1 | |
| } else { | |
| successChannel <- 0 | |
| } | |
| if j%5 == 0 { | |
| println("classified", j) | |
| } | |
| }(test, i) | |
| } | |
| for i := 0; i < 10000; i++ { //len(validationSample); i++ { | |
| totalCorrect += <-successChannel | |
| } | |
| fmt.Println(float64(totalCorrect)) // / float64(len(validationSample))) | |
| } | |
| // Runs in about 10s on the beefy machine | |
| // Has some reasonable number of correct, like 98k |
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| import numpy | |
| from sklearn.neighbors import KNeighborsClassifier | |
| f = open("many_features_test.csv") | |
| f.readline() # ignore headers | |
| test = numpy.loadtxt(f, delimiter=',') | |
| ff = open("many_features_training.csv") | |
| ff.readline() # ignore headers | |
| training = numpy.loadtxt(ff, delimiter=',') | |
| knn = KNeighborsClassifier(n_neighbors=1) | |
| knn.fit(training[:, [1,128]], numpy.ravel(training[:, [0]])) | |
| numpy.sum(knn.predict(test[:, [1,128]]) == numpy.ravel(test[:, [0]])) | |
| # Lightning fast, but... | |
| # Something shitty, like 534 (out of ~43000) | |
| knn = KNeighborsClassifier(n_neighbors=1, algorithm='brute') | |
| knn.fit(training[:, [1,128]], numpy.ravel(training[:, [0]])) | |
| numpy.sum(knn.predict(test[:, [1,128]]) == numpy.ravel(test[:, [0]])) | |
| # Takes a while, and then... | |
| # Something shittier, like MemoryError |
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