/// <summary>
///
/// </summary>
/// <param name="terms"></param>
/// <param name="appendStart">是否附加起始辅助节点</param>
/// <returns></returns>
public static List <Vertex> ToVertexList(List <Term> terms, bool appendStart)
{
var vertices = new List <Vertex>(terms.Count + 1);
if (appendStart)
{
vertices.Add(Vertex.B);
}
for (int i = 0; i < terms.Count; i++)
{
var term = terms[i];
var attr = CoreDictionary.GetAttr(term.word);
if (attr == null)
{
if (string.IsNullOrWhiteSpace(term.word))
{
attr = new WordAttr(Nature.x); // 普通字符串
}
else
{
attr = new WordAttr(Nature.nz); // 其他专名
}
}
else
{
term.nature = attr.natures[0]; //! 修改原始Term词条的词性
}
vertices.Add(new Vertex(term.word, attr));
}
return(vertices);
}
/// <summary>
/// 将原词转为等效词
/// </summary>
/// <param name="realWord">原来的词</param>
/// <param name="attr">等效词串</param>
/// <returns></returns>
private string CompileRealWord(string realWord, WordAttr attr)
{
if (attr.natures.Length == 1)
{
switch (attr.natures[0])
{
case var x when x >= Nature.nr && x <= Nature.nr2: // 人名
wordId = CoreDictionary.NR_WORD_ID;
return(TAG_PEOPLE);
case Nature.ns: // 地名
case Nature.nsf:
wordId = CoreDictionary.NS_WORD_ID;
return(TAG_PLACE);
case Nature.nx: // 专有名词
wordId = CoreDictionary.NX_WORD_ID;
this.attr = CoreDictionary.GetAttr(CoreDictionary.NX_WORD_ID);
return(TAG_PROPER);
case var x when x >= Nature.nt && x <= Nature.nth || x == Nature.nit:
wordId = CoreDictionary.NT_WORD_ID;
return(TAG_GROUP);
case Nature.m:
case Nature.mq:
wordId = CoreDictionary.M_WORD_ID;
this.attr = CoreDictionary.GetAttr(CoreDictionary.M_WORD_ID);
return(TAG_NUMBER);
case Nature.x:
wordId = CoreDictionary.X_WORD_ID;
this.attr = CoreDictionary.GetAttr(CoreDictionary.X_WORD_ID);
return(TAG_CLUSTER);
case Nature.t:
wordId = CoreDictionary.T_WORD_ID;
this.attr = CoreDictionary.GetAttr(CoreDictionary.T_WORD_ID);
return(TAG_TIME);
}
}
return(realWord);
}
public Vertex(string realWord) : this(null, realWord, CoreDictionary.GetAttr(realWord), -1)
{
}
public static List <ComTerm> Segment(string name, string address = null, string area = null, string areaCode = null)
{
var areacode = areaCode; // 传参地区码
if (string.IsNullOrWhiteSpace(areacode))
{
List <string> ah = null;
if (area != null)
{
var ar = AreaDictionary.Search(area);
if (ar != null)
{
ah = ar.AccurateCodes;
}
}
if (ah == null || ah.Count > 1)
{
// 分析 address 获取地区码
string fstAreaCode = null;
if (address != null)
{
var addTerms = _segment.Seg(address);
foreach (var t in addTerms)
{
var tar = AreaDictionary.Search(t.word);
if (tar != null)
{
fstAreaCode = tar.AccurateCodes[0];
break;
}
}
}
if (fstAreaCode != null)
{
areacode = fstAreaCode;
}
else
{
areacode = "";
}
}
else
{
areacode = ah[0];
}
}
var terms = _segment.Seg(name);
var list = new List <ComTerm>(); // <-------------后-------- --------------前--------------->
var index = -1;
//ComTerm lastAreaTerm = null;
var count = terms.Count;
for (int i = 0; i < count; i++)
{
var term = terms[i];
var ct = term.Copy2ComTerm();
if (term.nature == Nature.w || !TextUtil.IsAllChinese(term.word)) // 英文，字符判断
{
ct.nc = term.nature == Nature.w ? NatCom.W : NatCom.E;
ct.Verified = true;
list.Add(ct);
index++;
continue;
}
if (term.word == "公司" || term.word == "责任" || term.word == "集团" || term.word == "股份" || term.word == "有限")
{
ct.nc = NatCom.OF;
ct.Verified = true;
list.Add(ct);
index++;
continue;
}
if (term.word == "中国")
{
ct.nc = NatCom.MA;
//lastAreaTerm = ct;
list.Add(ct);
index++;
continue;
}
if (term.word.Length == 1) // 遇到单字词条
{
// 向前结合所有单字
int n = i + 1;
while (n < count)
{
var next_t = terms[n];
if (next_t.word.Length == 1) // 只要是单字，就直接合并
{
ct.word += next_t.word;
}
else
{
break; // 退出，当前位置n处的词条长度大于1
}
n++;
}
i = n - 1; // 设置下一个词条位置
// 此时分几种情况
if (n == count) // 如果n == count，那么表示最后都是单字，合并后作为一个词，并且分词结束
{
ct.nc = NatCom.U;
list.Add(ct);
return(list);
}
else // 分词尚未结束，n处表示下一个长度大于1的词条
{
if (ct.word.Length == 1) // 如果词条还是长度为1
{
int combine = 0; // 0 -》 自成一个词条, 1-> 向前结合，2 -》 向后结合
if (index < 0 || list[index].Verified) // 应该向前结合，因为没法向后结合了
{
if (TextUtil.IsAllChinese(terms[n].word)) // 检测后面的词条是否是全中文，如不是，则不能与后面的词条结合
{
combine = 1;
}
}
else if ((index >= 0 && list[index].Freq < 10) || terms[n].nature == Nature.w || !TextUtil.IsAllChinese(terms[n].word)) // 可以向后结合
{
combine = 2;
}
else // 前后都有词条
{
// 首先根据公司名高频词条的频率进行决策
if (terms[n].ComFreq >= 10000 && list[index].ComFreq >= 10000) // 单字成一词
{
combine = 0;
}
else if (list[index].ComFreq / terms[n].ComFreq > 10) // 向前结合
{
combine = 1;
}
else if (terms[n].ComFreq / list[index].ComFreq > 10) // 向后结合
{
combine = 2;
}
else if (terms[n].ComFreq < 5000 && list[index].ComFreq < 5000) //
{
if (terms[n].nature == Nature.nz) // 向前结合
{
combine = 1;
}
else if (list[index].nature == Nature.nz) // 向后结合
{
combine = 2;
}
else if (terms[n].Freq > list[index].Freq) // 向后结合
{
combine = 2;
}
else // 向前结合
{
combine = 1;
}
}
else if (terms[n].ComFreq < 5000) // 向前结合
{
combine = 1;
}
else if (list[index].ComFreq < 5000) // 向后结合
{
combine = 2;
}
}
if (combine == 0)
{
list.Add(ct);
index++;
}
else if (combine == 1)
{
terms[n].word = ct.word + terms[n].word; // 直接与下一个结合
terms[n].offset -= 1;
}
else
{
var prev_ct = list[index];
prev_ct.word += ct.word;
if (prev_ct.word.Length >= 4)
{
var suffix = prev_ct.word.Substring(prev_ct.word.Length - 2);
var attr = CoreDictionary.GetAttr(suffix);
if (attr != null)
{
var nat = attr.natures[0];
list[index].word = prev_ct.word.Substring(0, prev_ct.word.Length - 2);
list[index].nc = NatCom.C;
list.Add(new ComTerm(suffix, nat)
{
nc = NatCom.T, offset = prev_ct.word.Length - 2
});
index++;
}
else if (prev_ct.word.Length > 4)
{
attr = CoreDictionary.GetAttr(prev_ct.word.Substring(prev_ct.word.Length - 3));
if (attr != null)
{
var nat = attr.natures[0];
list[index].word = prev_ct.word.Substring(0, prev_ct.word.Length - 2);
list[index].nc = NatCom.C;
list.Add(new ComTerm(suffix, nat)
{
nc = NatCom.T, offset = prev_ct.word.Length - 3
});
index++;
}
}
}
}
continue;
}
else
{
ct.nc = NatCom.C;
list.Add(ct);
index++;
}
}
}
else
{
var arearesult = AreaDictionary.Search(term.word);
// 没有考虑前后
if (arearesult == null) // 没有找到
{
if (index >= 0 && list[index].nc == NatCom.MA && term.nature == Nature.ns) // 如果认为是地名，则有可能是旧地名尚未收录
{
var prev_ct = list[index];
if (prev_ct.ext1.Length <= 4 && (term.word.EndsWith("区") || term.word.EndsWith("县"))) // 已经确定，直接认为当前词条是地区
{
ct.nc = NatCom.MA;
//lastAreaTerm = ct;
ct.ext1 = "******";
ct.Verified = true;
list.Add(ct);
index++;
continue;
}
else // 上一个词条确定是地名，则进行级联
{
Dictionary <string, int> subMap;
if (AreaCas_Map.TryGetValue(prev_ct.ext1, out subMap))
{
if (subMap.ContainsKey(term.word))
{
subMap[term.word] += 1;
}
else
{
subMap[term.word] = 1;
}
}
else
{
AreaCas_Map[prev_ct.ext1] = new Dictionary <string, int>()
{
[term.word] = 1
}
};
}
}
if (ct.word.Length < 4)
{
ct.nc = NatCom.C;
list.Add(ct);
index++;
continue;
}
else if (ct.word.Length >= 4)
{
var prehalf = ct.word.Substring(0, 2);
var nexhalf = ct.word.Substring(2);
var nexattr = CoreDictionary.GetAttr(nexhalf);
var preattr = CoreDictionary.GetAttr(prehalf);
if (nexattr != null || preattr != null)
{
list.Add(new ComTerm(prehalf, ct.nature)
{
offset = ct.offset, nc = NatCom.C
});
list.Add(new ComTerm(nexhalf, ct.nature)
{
offset = ct.offset + 2, nc = NatCom.T
});
index++;
}
else if (ct.word.Length > 4)
{
prehalf = ct.word.Substring(0, 3);
nexhalf = ct.word.Substring(3);
nexattr = CoreDictionary.GetAttr(nexhalf);
preattr = CoreDictionary.GetAttr(prehalf);
if (nexattr != null || preattr != null)
{
list.Add(new ComTerm(prehalf, ct.nature)
{
offset = ct.offset, nc = NatCom.C
});
list.Add(new ComTerm(nexhalf, ct.nature)
{
offset = ct.offset + 3, nc = NatCom.T
});
index++;
}
else
{
ct.nc = NatCom.C;
list.Add(ct);
index++;
continue;
}
}
else
{
ct.nc = NatCom.C;
list.Add(ct);
index++;
continue;
}
}
}
else // 找到了地区名
{
if (arearesult.AccurateCodes != null)
{
ct.nc = NatCom.MA;
ct.Verified = true; // 确认是地区
//lastAreaTerm = ct;
ct.ext1 = arearesult.AccurateCodes[0];
list.Add(ct);
index++;
}
else if (arearesult.Name_Codes_Map != null) // 未指定地区级别的地区名
{
var aflag = false;
if (arearesult.Name_Codes_Map.Count == 1)
{
foreach (var code in arearesult.Name_Codes_Map.First().Value)
{
// 地区一致
if (code.StartsWith(areacode) || areacode.StartsWith(code)) //! 特别地，如果areacode=""，则条件成立
{
ct.nc = NatCom.MA;
//lastAreaTerm = ct;
ct.ext1 = code;
if (code.Length == 3)
{
ct.Verified = true;
}
else
{
ct.Verified = areacode != ""; // 确认是地区
}
list.Add(ct);
index++;
aflag = true;
break;
}
}
if (!aflag)
{
ct.nc = NatCom.C; // 疑似公司字号
list.Add(ct);
index++;
}
}
else // 有重名的地区
{
foreach (var p in arearesult.Name_Codes_Map)
{
foreach (var code in p.Value)
{
// 地区一致
if (code.StartsWith(areacode) || areacode.StartsWith(code)) //! 特别地，如果areacode=""，则条件成立
{
ct.nc = NatCom.MA;
//lastAreaTerm = ct;
ct.ext1 = code;
if (code.Length == 3)
{
ct.Verified = true;
}
else
{
ct.Verified = areacode != ""; // 确认是地区
}
list.Add(ct);
index++;
aflag = true;
break;
}
}
if (aflag)
{
break;
}
}
if (!aflag)
{
ct.nc = NatCom.C; // 疑似公司字号
list.Add(ct);
index++;
}
}
}
}
}
}
return(list);
}