update the urls

Book/mt-book-xelatex.idx

+\indexentry{流畅度|hyperpage}{12}
+\indexentry{Fluency|hyperpage}{12}
+\indexentry{准确性|hyperpage}{12}
+\indexentry{Accuracy|hyperpage}{12}
+\indexentry{充分性|hyperpage}{12}
+\indexentry{Adequacy|hyperpage}{12}
+\indexentry{翻译候选|hyperpage}{13}
+\indexentry{Translation Candidate|hyperpage}{13}
+\indexentry{训练|hyperpage}{15}
+\indexentry{Training|hyperpage}{15}
+\indexentry{解码|hyperpage}{15}
+\indexentry{Decoding|hyperpage}{15}
+\indexentry{推断|hyperpage}{15}
+\indexentry{Inference|hyperpage}{15}
+\indexentry{词对齐|hyperpage}{20}
+\indexentry{Word Alignment|hyperpage}{20}
+\indexentry{词对齐连接|hyperpage}{20}
+\indexentry{解码|hyperpage}{23}
+\indexentry{Decoding|hyperpage}{23}
+\indexentry{噪声信道模型|hyperpage}{26}
+\indexentry{Noise Channel Model|hyperpage}{26}
+\indexentry{词对齐|hyperpage}{29}
+\indexentry{Word Alignment|hyperpage}{29}
+\indexentry{非对称的词对齐|hyperpage}{29}
+\indexentry{Asymmetric Word Alignment|hyperpage}{29}
+\indexentry{空对齐|hyperpage}{29}
+\indexentry{拉格朗日乘数法|hyperpage}{37}
+\indexentry{The Lagrange Multiplier Method|hyperpage}{37}
+\indexentry{期望最大化|hyperpage}{40}
+\indexentry{Expectation Maximization|hyperpage}{40}
+\indexentry{期望频次|hyperpage}{40}
+\indexentry{Expected Count|hyperpage}{41}
+\indexentry{产出率|hyperpage}{44}
+\indexentry{繁衍率|hyperpage}{44}
+\indexentry{Fertility|hyperpage}{44}
+\indexentry{扭曲度|hyperpage}{46}
+\indexentry{Distortion|hyperpage}{46}
+\indexentry{概念单元|hyperpage}{48}
+\indexentry{概念|hyperpage}{48}
+\indexentry{Concept|hyperpage}{48}
+\indexentry{缺陷|hyperpage}{49}
+\indexentry{Deficiency|hyperpage}{49}
+\indexentry{凸函数|hyperpage}{54}
+\indexentry{Convex function|hyperpage}{54}
+\indexentry{对称化|hyperpage}{55}
+\indexentry{Symmetrization|hyperpage}{55}
+\indexentry{系统偏置|hyperpage}{56}
+\indexentry{System Bias|hyperpage}{56}

Book/mt-book-xelatex.tex

@@ -80,6 +80,7 @@
 
 
 \noindent \textsc{东北大学自然语言处理实验室\ $\cdot$\ 小牛翻译}\\
 \noindent \textsc{东北大学自然语言处理实验室\ $\cdot$\ 小牛翻译}\\
 
 
+\noindent \textsc{\url{https://opensource.niutrans.com/mtbook/index.html}}\\
 \noindent \textsc{\url{https://github.com/NiuTrans/MTBook}}\\
 \noindent \textsc{\url{https://github.com/NiuTrans/MTBook}}\\
 
 
 \noindent {\red{Licensed under the Creative Commons Attribution-NonCommercial 4.0 Unported License (the ``License''). You may not use this file except in compliance with the License. You may obtain a copy of the License at \url{http://creativecommons.org/licenses/by-nc/4.0}. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an \textsc{``as is'' basis, without warranties or conditions of any kind}, either express or implied. See the License for the specific language governing permissions and limitations under the License.}}\\
 \noindent {\red{Licensed under the Creative Commons Attribution-NonCommercial 4.0 Unported License (the ``License''). You may not use this file except in compliance with the License. You may obtain a copy of the License at \url{http://creativecommons.org/licenses/by-nc/4.0}. Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an \textsc{``as is'' basis, without warranties or conditions of any kind}, either express or implied. See the License for the specific language governing permissions and limitations under the License.}}\\