public static AnalyzeResult Analyze(string problem, string[] answerArr)
{
bool oppose = Regex.IsMatch(problem, "不是|不属于|不包括|不可以|不包含|不需要|错误|没有");//是否存在否定关键词
//移除部分干扰搜索的关键字
problem = RemoveUselessInfo(problem);
#region 多线程获取信息
Thread[] workThread = new Thread[1 + answerArr.Length * 2];//工作线程
workThread[0] = new Thread(new ParameterizedThreadStart(WorkThread));
WorkArgs args;
args.Type = TaskType.GetProblemData;
args.Index = -1;
args.Text = problem;
workThread[0].Start(args);
answerCnt = new int[answerArr.Length];
for (int i = 0; i < answerArr.Length; i++)
{
args.Type = TaskType.AnswerCnt;
args.Index = i;
args.Text = answerArr[i];
workThread[i + 1] = new Thread(new ParameterizedThreadStart(WorkThread));
workThread[i + 1].Start(args);
}
problemAndAnswerCnt = new int[answerArr.Length];
for (int i = 0; i < answerArr.Length; i++)
{
args.Type = TaskType.ProblemAndAnswerCnt;
args.Index = i;
args.Text = problem + " " + "\"" + answerArr[i] + "\"";
workThread[i + 1 + answerArr.Length] = new Thread(new ParameterizedThreadStart(WorkThread));
workThread[i + 1 + answerArr.Length].Start(args);
}
while (true)//等待所有线程执行完毕
{
bool allExited = true;
for (int i = 0; i < workThread.Length; i++)
{
if (workThread[i].IsAlive)
{
allExited = false;
break;
}
}
if (allExited)
{
break;
}
else
{
Thread.Sleep(50);
}
}
#endregion
//计算权值
double[] pmiRank = CalculateRank.CalculatePMIRank(problemCnt, answerCnt, problemAndAnswerCnt);
double[] cntRank = CalculateRank.CalculateCountRank(problem, answerArr, pmiRank, problemData);
double[] sumRank = new double[answerArr.Length];
int maxIndex = 0;
int minIndex = 0;
for (int i = 0; i < answerArr.Length; i++)
{
sumRank[i] = pmiRank[i] + cntRank[i];
if (sumRank[i] > sumRank[maxIndex])
{
maxIndex = i;
}
if (sumRank[i] < sumRank[minIndex])
{
minIndex = i;
}
}
double probabilitySum = 0;
for (int i = 0; i < cntRank.Length; i++)
{
probabilitySum += sumRank[i];
}
//计算概率
int[] probability = new int[answerArr.Length];
for (int i = 0; i < answerArr.Length; i++)
{
probability[i] = (int)(sumRank[i] / probabilitySum * 100);
}
AnalyzeResult ar;
ar.CntRank = cntRank;
ar.PMIRank = pmiRank;
ar.Index = maxIndex;
if (oppose)
{
ar.Index = minIndex;
}
ar.SumRank = sumRank;
ar.Probability = probability;
ar.Oppose = oppose;
return(ar);
}
/// <summary>
/// 答案推荐算法
/// </summary>
/// <param name="problem">题目</param>
/// <param name="answerArr">选项</param>
public static AnalyzeResult Analyze(string problem, string[] answerArr)
{
//是否存在否定关键词
bool oppose = Regex.IsMatch(problem, "不是|不属于|不包括|不可以|不包含|不需要|错误|没有|不会|不可能|找不到");
answers = answerArr;
//移除部分干扰搜索的关键字
problem = RemoveUselessInfoAndPrivative(problem);
#region 多线程获取信息
Thread[] workThread = new Thread[1 + answerArr.Length * 2];//工作线程
workThread[0] = new Thread(new ParameterizedThreadStart(WorkThread));
WorkArgs args;
args.Type = TaskType.GetProblemData;
args.Index = -1;
args.Text = problem;
workThread[0].Start(args);
answerCnt = new int[answerArr.Length];
for (int i = 0; i < answerArr.Length; i++)
{
args.Type = TaskType.AnswerCnt;
args.Index = i;
args.Text = answerArr[i];
workThread[i + 1] = new Thread(new ParameterizedThreadStart(WorkThread));
workThread[i + 1].Start(args);
}
problemAndAnswerCnt = new int[answerArr.Length];
for (int i = 0; i < answerArr.Length; i++)
{
args.Type = TaskType.ProblemAndAnswerCnt;
args.Index = i;
args.Text = problem + " " + "\"" + answerArr[i] + "\"";
workThread[i + 1 + answerArr.Length] = new Thread(new ParameterizedThreadStart(WorkThread));
workThread[i + 1 + answerArr.Length].Start(args);
}
while (true)//等待所有线程执行完毕
{
bool allExited = true;
for (int i = 0; i < workThread.Length; i++)
{
if (workThread[i].IsAlive)
{
allExited = false;
break;
}
}
if (allExited)
{
break;
}
else
{
Thread.Sleep(50);
}
}
#endregion
#region 计算权值
double[] pmiRank = CalculateRank.CalculatePMIRank(problemCnt, answerCnt, problemAndAnswerCnt); //PMI算法得到的权值
double[] cntRank = CalculateRank.CalculateCountRank(problem, answerArr, pmiRank, problemData); ///计算算法得到的权值
double[] sumRank = new double[answerArr.Length];
double pmiAddCnt = 0;//权值和
for (int i = 0; i < answerArr.Length; i++)
{
pmiAddCnt += pmiRank[i] + cntRank[i];
}
int trueAnswerIndex = SearchTureAnswer(problemData, answerArr);//检索绝对正确的答案
Debug.WriteLine("权威答案:" + trueAnswerIndex);
if (trueAnswerIndex != -1)//匹配到权威答案
{
sumRank[trueAnswerIndex] = pmiAddCnt;
}
else//检索百度知道
{
if (SearchInBaiduZhiDao(problemData, answerArr, out int baiDuZhiDaoAnswerIndex, out int zdRatio))
{
sumRank[baiDuZhiDaoAnswerIndex] += (double)pmiAddCnt * zdRatio / 100;
Debug.WriteLine(sumRank[baiDuZhiDaoAnswerIndex]);
Debug.WriteLine("百度知道答案:" + baiDuZhiDaoAnswerIndex + " Ratio:" + zdRatio);
}
}
#endregion
int maxIndex = 0;
int minIndex = 0;
for (int i = 0; i < answerArr.Length; i++)
{
sumRank[i] += pmiRank[i] + cntRank[i];
if (sumRank[i] > sumRank[maxIndex])
{
maxIndex = i;
}
if (sumRank[i] < sumRank[minIndex])
{
minIndex = i;
}
}
#region 计算概率
double probabilitySum = 0;//权值和
for (int i = 0; i < cntRank.Length; i++)
{
probabilitySum += sumRank[i];
}
int[] probability = new int[answerArr.Length];
for (int i = 0; i < answerArr.Length; i++)
{
probability[i] = (int)(sumRank[i] / probabilitySum * 100);
}
#endregion
AnalyzeResult ar;//分析结果
ar.CntRank = cntRank;
ar.PMIRank = pmiRank;
ar.Index = maxIndex;
if (oppose) //存在否定词则取最小
{
ar.Index = minIndex;
}
ar.SumRank = sumRank;
ar.Probability = probability;
ar.Oppose = oppose;
return(ar);
}