public virtual bool LoadFromBin(ByteArray ba)
{
if (ba == null)
{
return(false);
}
try
{
var size = ba.NextInt_HighFirst(); // 使用Model目标的数据文件均与相应的原数据文件兼容，所以这里只讨论高位在前的情况
id2tag = new string[size];
tag2id = new Dictionary <string, int>(size);
for (int i = 0; i < size; i++)
{
id2tag[i] = ba.NextUTFStr(true);
tag2id[id2tag[i]] = i;
}
var ffs = new FeatureFunction[ba.NextInt_HighFirst()];
for (int i = 0; i < ffs.Length; i++)
{
ffs[i] = new FeatureFunction();
ffs[i].Load(ba);
}
_ffTrie.Load(ba, ffs, true);
size = ba.NextInt_HighFirst();
_ftList = new List <FeatureTemplate>(size);
for (int i = 0; i < size; i++)
{
var ft = new FeatureTemplate();
ft.Load(ba);
_ftList.Add(ft);
}
size = ba.NextInt_HighFirst();
if (size == 0)
{
return(true);
}
_matrix = new double[size][];
for (int i = 0; i < size; i++)
{
_matrix[i] = new double[size];
for (int j = 0; j < size; j++)
{
_matrix[i][j] = ba.NextDouble_HighFirst();
}
}
return(true);
}
catch (Exception e)
{
return(false);
}
}
public virtual void LoadFromTxt(string path)
{
//if (Load(ByteArray.Create(path + Predefine.BIN_EXT))) return;
var lines = File.ReadAllLines(path);
// print lines[0]; // version
// print lines[1]; // cost-factor
// print lines[2]; // "maxid:xx"
// print lines[3]; // xsize
// lines[4]: blank line
tag2id = new Dictionary <string, int>();
int i = 5;
string line = null;
for (; i < lines.Length; i++)
{
line = lines[i];
if (string.IsNullOrEmpty(line))
{
break;
}
tag2id[line] = i - 5;
}
int size = tag2id.Count;
id2tag = new string[size]; //! id2tag的元素赋值为什么不放入上一个循环中？ tag2id.Count必然比keyvaluepair.value最大值大1，否则下面给id2tag元素赋值会出错
foreach (var p in tag2id)
{
id2tag[p.Value] = p.Key;
}
var ffMap = new SortedDictionary <string, FeatureFunction>(StrComparer.Default);
var ffList = new List <FeatureFunction>();
_ftList = new List <FeatureTemplate>();
i++; // 跳过当前的空白行
for (; i < lines.Length; i++)
{
line = lines[i];
if (string.IsNullOrEmpty(line))
{
break;
}
if ("B" != line)
{
_ftList.Add(FeatureTemplate.Create(line));
}
else
{
_matrix = new double[size][]; //? 第一次遇到"B"行，表示接来下是_matrix数据信息，于是，初始化_matrix方阵
}
}
i++; // 跳过当前空白行
if (_matrix != null)
{
i++; // 如果提供了_matrix数据信息，则接下来一行为 0 B，跳过
}
for (; i < lines.Length; i++)
{
line = lines[i];
if (string.IsNullOrEmpty(line))
{
break;
}
var args = line.Split(new[] { ' ' }, 2);
var chars = args[1].ToCharArray();
var ff = new FeatureFunction(chars, size);
ffMap[args[1]] = ff;
ffList.Add(ff);
}
i++; // 跳过当前空白行
if (_matrix != null)
{
for (int k = 0; k < size; k++)
{
_matrix[k] = new double[size];
for (int j = 0; j < size; j++)
{
_matrix[k][j] = double.Parse(lines[i++]);
}
}
}
for (int k = 0; k < ffList.Count; k++)
{
var ff = ffList[k];
for (int j = 0; j < size; j++)
{
ff.w[j] = double.Parse(lines[i++]);
}
}
if (i < lines.Length)
{
// log "文本读取有残留，可能出现问题"
}
_ffTrie.Build(ffMap);
// 缓存bin数据文件
var fs = new FileStream(path + Predefine.BIN_EXT, FileMode.Create, FileAccess.Write);
try
{
Save(fs);
fs.Close();
}
catch (Exception e)
{
// log e
fs.Close();
File.Delete(path + Predefine.BIN_EXT);
}
OnLoadTxtFinished();
}
