/// <summary>
/// Look at the top 10 programs learned from a single example for normalizing a phone number like in
/// <see cref="LearnNormalizePhoneNumber" /> and show the behavior of them on a couple other phone nubmers.
/// Demonstrates learning more than just the single top program, and shows the variation in outputs
/// among the top-ranked programs on unseen input formats.
/// </summary>
/// <seealso cref="LearnTop10FormatName" />
private static void LearnTop10NormalizePhoneNumber()
{
IEnumerable <FlashFillExample> examples = new[]
{
new FlashFillExample("(425) 829 5512", "425-829-5512")
};
// Request is for number of distinct rankings, not number of programs,
// so more programs will be generated if there are ties.
int numRankingsToGenerate = 10;
IList <FlashFillProgram> programs = FlashFillProgram.LearnTopK(examples, k: numRankingsToGenerate).ToList();
if (!programs.Any())
{
Console.Error.WriteLine("Error: failed to learn normalize phone number program.");
}
else
{
// More than numRankingsToGenerate programs may be generated if there are ties in the ranking.
Console.WriteLine("Learned {0} programs.", programs.Count);
// Run all of the programs to see how their output differs.
for (int i = 0; i < programs.Count; i++)
{
foreach (var phoneNumber in new[] { "425 233 1234", "(425) 777 3333" })
{
string normalized = programs[i].Run(phoneNumber);
Console.WriteLine("Program {2}: \"{0}\" => \"{1}\"", phoneNumber, normalized, (i + 1));
}
}
}
}
/// <summary>
/// Look at the top 10 programs learned from a single example for formatting a name like in
/// <see cref="LearnFormatName" /> and show the behavior of them on slightly differently formatted name.
/// Demonstrates learning more than just the single top program, and shows the variation in outputs
/// among the top-ranked programs on unseen input formats.
/// </summary>
/// <seealso cref="LearnTop10NormalizePhoneNumber" />
private static void LearnTop10FormatName()
{
var examples = new[] { new FlashFillExample("Greta Hermansson", "Hermansson, G.") };
IEnumerable <FlashFillProgram> programs = FlashFillProgram.LearnTopK(examples, k: 10);
// This attempts running the top 10 programs on an input not directly similar to the example
// to see if any of them work anyway.
int i = 0;
foreach (var program in programs)
{
var input = "Kettil hansson"; // Notice it's "hansson", not "Hansson".
Console.WriteLine("Program {0}: \"{1}\" => \"{2}\"", ++i, input, program.Run(input));
}
}
