public JsonResult Analyze(string input)
{
ExperimentService experimentService = new ExperimentService();
ExperimentResultViewModel pattern = experimentService.Analyze(input);
return(Json(pattern, JsonRequestBehavior.AllowGet));
}
public ExperimentResultViewModel Analyze(string input)
{
string inputTmp = input.Trim();
PatternService patternService = new PatternService();
List <Pattern> patterns = patternService.Get(q => q.Active == true).ToList();
int maxElements = -1;
Pattern matchPattern = null;
Dictionary <string, string> matches = null;
string specialValues = ""; //when the entity simply just want some words
foreach (var pattern in patterns)
{
specialValues = "";
bool hasUnknwonPhrase = false;
Dictionary <string, string> matchesTmp = new Dictionary <string, string>();
inputTmp = input.Trim();
List <PatternEntityMapping> pems = pattern.PatternEntityMappings.Where(q => q.Active == true).OrderBy(q => q.Position).ToList();
for (int i = 0; i < pems.Count; i++)
{
Regex regex = null;
if (pems[i].Entity.Words == @".*?")
{
specialValues = inputTmp;
hasUnknwonPhrase = true;
}
else
{
if (pattern.MatchBegin && pattern.MatchEnd && pems.Count == 1)
{
regex = new Regex(@"(?:^|\W)^(" + pems[i].Entity.Words + @")$(?:$|\W)", RegexOptions.IgnoreCase);
}
else if (i == pems.Count - 1 && pattern.MatchEnd)
{
regex = new Regex(@"(?:^|\W)(" + pems[i].Entity.Words + @")$(?:$|\W)", RegexOptions.IgnoreCase);
}
else if (specialValues == "")
{
if (i == 0)
{
if (pattern.MatchBegin)
{
regex = new Regex(@"(?:^|\W)^(" + pems[i].Entity.Words + @")(?:$|\W)", RegexOptions.IgnoreCase);
}
else
{
regex = new Regex(@"(?:^|\W)(" + pems[i].Entity.Words + @")(?:$|\W)", RegexOptions.IgnoreCase);
}
}
else
{
regex = new Regex(@"(?:^|\W)^(" + pems[i].Entity.Words + @")(?:$|\W)", RegexOptions.IgnoreCase);
}
}
else
{
regex = new Regex(@"(?:^|\W)" + pems[i].Entity.Words + @"(?:$|\W)", RegexOptions.IgnoreCase);
}
Match result = regex.Match(inputTmp);
if (result.Success)
{
if (matchesTmp.ContainsKey(pems[i].Entity.Name))
{
string value = matchesTmp[pems[i].Entity.Name];
matchesTmp[pems[i].Entity.Name] = value + ";" + result.Value;
}
else
{
matchesTmp.Add(pems[i].Entity.Name, result.Value);
}
if (specialValues != "")
{
matchesTmp.Add("Cụm từ", specialValues.Substring(0, specialValues.Length - result.Length).Trim());
specialValues = "";
}
if (i == pems.Count - 1)
{
if ((!hasUnknwonPhrase && matchesTmp.Count > maxElements) || (hasUnknwonPhrase && matchesTmp.Count - 1 > maxElements))
{
matchPattern = pattern;
matches = matchesTmp;
maxElements = hasUnknwonPhrase ? matchesTmp.Count - 1 : matchesTmp.Count;
if (result.Index + result.Value.Trim().Length + 1 < inputTmp.Length)
{
specialValues = inputTmp.Substring(result.Index + result.Value.Trim().Length + 1);
}
break;
}
}
else
{
if (result.Index + result.Value.Trim().Length + 1 < inputTmp.Length)
{
inputTmp = inputTmp.Substring(result.Index + result.Value.Trim().Length + 1).Trim();
}
}
}
else
{
break;
}
}
}
if (specialValues != "")
{
if (matches == null && ((!hasUnknwonPhrase && matchesTmp.Count > maxElements) || (hasUnknwonPhrase && matchesTmp.Count - 1 > maxElements)))
{
matches = matchesTmp;
matchPattern = pattern;
matches.Add("Cụm từ", specialValues.Trim());
maxElements = hasUnknwonPhrase ? matchesTmp.Count - 1 : matchesTmp.Count;
}
else if (matches != null && !matches.ContainsKey("Cụm từ") && ((!hasUnknwonPhrase && matchesTmp.Count > maxElements) || (hasUnknwonPhrase && matchesTmp.Count - 1 > maxElements)))
{
matches.Add("Cụm từ", specialValues.Trim());
matchPattern = pattern;
maxElements = hasUnknwonPhrase ? matchesTmp.Count - 1 : matchesTmp.Count;
}
specialValues = "";
}
}
ExperimentResultViewModel model = new ExperimentResultViewModel();
if (matchPattern != null)
{
model.IntentId = matchPattern.IntentId ?? 0;
model.Group = matchPattern.Group ?? 0;
model.Matches = matches;
}
return(model);
}
