// Main
static void Main(string[] args)
{
// Download the MNIST data from Mr. YannAndréLeCun's web site
using (var wc = new WebClient())
{
if (!File.Exists(LABEL_FILE_NAME))
{
wc.DownloadFile(LABEL_FILE_URL, LABEL_FILE_NAME);
}
if (!File.Exists(IMAGE_FILE_NAME))
{
wc.DownloadFile(IMAGE_FILE_URL, IMAGE_FILE_NAME);
}
}
// Load the MNIST labels
var labels = GetLabels().ToArray();
// Load the MNIST image data
var pixels = GetImages().ToArray();
// Dimension reduction with UMAP
var umap = new Umap();
var epochs = umap.InitializeFit(pixels);
for (var i = 0; i < epochs; ++i)
{
umap.Step();
}
var embedding = umap.GetEmbedding().AsEnumerable();
// Convert the embedding into chart data
var graph = new Graph.Scatter()
{
x = embedding.Select((o) => o[0]),
y = embedding.Select((o) => o[1]),
text = labels.Select((o) => o.ToString()),
mode = "markers",
marker = new Graph.Marker {
color = labels, colorscale = "Rainbow", showscale = true
},
};
var chart = Chart.Plot(graph);
chart.WithTitle("MNIST Embedded via UMAP");
chart.WithXTitle("X");
chart.WithYTitle("Y");
chart.WithSize(800, 800);
chart.Show();
}
public static void Plot(string pattern, bool generateHtml = false)
{
var iterationCounts = new List <int>
{
1,
10,
25,
50,
100,
250,
500,
1000,
2000,
3000,
4000,
5000
};
var regexTimer = new RegexTimer();
List <RegexTimer.RegexTimerResult> timesStandard = iterationCounts
.Select(iterationCount => regexTimer.Standard(pattern, iterations: iterationCount))
.ToList();
List <RegexTimer.RegexTimerResult> timesStandardReused = iterationCounts
.Select(iterationCount => regexTimer.StandardReused(pattern, iterations: iterationCount))
.ToList();
List <RegexTimer.RegexTimerResult> timesCompiled = iterationCounts
.Select(iterationCount => regexTimer.Compiled(pattern, iterations: iterationCount))
.ToList();
var graph1 = new Graph.Scatter
{
x = timesStandard.Select(x => x.IterationCount),
y = timesStandard.Select(x => x.ElapsedTicks),
name = "Standard Regex"
};
var graph2 = new Graph.Scatter
{
x = timesStandardReused.Select(x => x.IterationCount),
y = timesStandardReused.Select(x => x.ElapsedTicks),
name = "Reused Regex"
};
var graph3 = new Graph.Scatter
{
x = timesCompiled.Select(x => x.IterationCount),
y = timesCompiled.Select(x => x.ElapsedTicks),
name = "Compiled Regex"
};
PlotlyChart chart = Chart.Plot(
new[]
{
graph1,
graph2,
graph3
}
);
chart.WithXTitle("Iteration Count");
chart.WithYTitle("Ticks");
chart.WithTitle("Regex on 100 characters");
chart.Show();
if (generateHtml)
{
string html = chart.GetHtml();
using var outFile = new StreamWriter(
Path.Combine(PathUtil.GetSolutionBasePath(), "Plots", "PlotByIterationCount.html")
);
outFile.Write(html);
}
}
