some improvement according to review comments

1-intro.tex

@@ -34,7 +34,7 @@ tend to lack information of others progress.
 % 危害-平台
 Duplicate PRs increase the maintenance cost of GitHub
 and result in the waste of time spent on
-the redundant effort of reviewing each of them separately.
+the redundant effort of reviewing each of them separately~\cite{Gousios:2014,Gousios:2016}.
 Moreover, 
 contributors may iteratively update and improve their PRs 
 in several rounds of code reviews~\cite{Yu:2015} 
@@ -70,14 +70,18 @@ Each pair of duplicate PRs in \textit{DupPR}
 has been manually verified after automatic identification 
 which guarantees the quality of this dataset. 
 The dataset and the source code used to recreate it is available 
-online~\footnote{\url{https://github.com/whystar/MSR2018-DupPR}}. 
+online.~\footnote{\url{https://github.com/whystar/MSR2018-DupPR}} 
 Based on this dataset,
 the following research would be more available.
 
 \begin{itemize}
 
+	% \item Analyzing how much redundant effort would be wasted by duplicate PRs.
+	% This would give researchers a clear idea of the issues that duplicate PRs have introduced.
 	\item Analyzing how much redundant effort would be wasted by duplicate PRs.
-	This would give researchers a clear idea of the issues that duplicate PRs have introduced.
+	This would give researchers a straightforward impression 
+	about how duplicate PRs negatively impact software development process.
+
 
 	\item Investigating how reviewers make the choice between two duplicate PRs.
 	This is necessary to build automatic tools to make more targeted comparison between duplicates

3-desc.tex

@@ -28,12 +28,12 @@ and the fields in these tables are defined as follows.
 
 \begin{itemize}[leftmargin=0em,itemindent=2em]
 	 \item Table \texttt{Project} stores the basic information of studied projects.
-	Field \texttt{user\_name} is the name of the user or the organization which owns the project in GitHub,
+	Field \texttt{user\_name} is the name of the user owning the project in GitHub,
 	and field \texttt{repo\_name} is the name of the project.
-	These two fields, together with the host of GitHub (\ie ``https://github.com/''),
+	These two fields, together with the domain name of GitHub,
 	can be used to compose the resource locator of the project in GitHub.
-	Other fields in table \texttt{Project}  present some statistical characteristics of a project
-	such as \texttt{fork\_count} (the number of forks) and \texttt{star\_count} (the number of stars).
+	Other fields in table \texttt{Project}  present some statistical characteristics of a project, 
+	for example \texttt{fork\_count} is the number of forks.
 
 	\item For each project,
 	all the PRs belonged to it are stored in table \texttt{Pull-request}.

4-applct.tex

@@ -21,21 +21,12 @@ and the property \texttt{created\_at} of $idn\_cmt$ in table \texttt{Comment} is
 We calculated the detection latency of all the duplicates in our dataset
 and the statistic result is shown in Figure~\ref{fig:delay_time_bar}.
 The figure presents that
-1,474 (63\%) duplicates are identified less than one day,
-while 865 (37.0\%) duplicates are detected after longer latency which is more than one day.
-% \hl{This .....}
-% 找特殊数据介绍一下
-% Among them, 39 (1.7\%) duplicates are detected less than one minute,
-% 681 (29.1\%) between one minue and one hour,
-% and 754 (32.2\%) between one hour and one day.
-% [39, 681, 754, 379, 239, 231, 16]
+37.0\% (865) duplicates are detected after long latency which is more than one day.
+
+% 1,474 (63\%) duplicates are identified less than one day,
+% while 865 (37.0\%) duplicates are detected after longer latency which is more than one day.
+% \hl{This .....}
 
-% \begin{figure}[ht]
-%  	\centering
-%  	\includegraphics[width=0.5\textwidth]{figs/delay_time.png}
-%  	\caption{Distribution of detection latency of duplicate pull-requests}
-% 	\label{fig:delay_time}
-% \end{figure}
 
 
 \begin{figure}[ht]

main.tex

@@ -1,4 +1,4 @@
-\documentclass[sigconf, anonymous]{acmart}
+\documentclass[sigconf]{acmart}
 
 \usepackage{booktabs} % For formal tables
 \usepackage{setspace}
@@ -27,20 +27,16 @@
 \begin{document}
 \title{A Dataset of Duplicate Pull-requests in GitHub}
 
-% \author{Zhixing Li, Yue Yu$^*$, Gang Yin, Tao Wang, Huaimin Wang}
-% \affiliation{%
-%   \institution{College of Computer, National University of Defense Technology}
-%   \city{Changsha, China} 
-%   \postcode{410073}
-% }
-% \email{{lizhixing15, yuyue, yingang, taowang2005, hmwang}@nudt.edu.cn}
-% \renewcommand{\shortauthors}{Z. Li et al.}
+\author{Yue Yu$^*$, Zhixing Li$^*$, Gang Yin, Tao Wang, Huaimin Wang}
+\affiliation{%
+  \institution{College of Computer, National University of Defense Technology}
+  \city{Changsha, China} 
+  \postcode{410073}
+}
+\email{{yuyue, lizhixing15, yingang, taowang2005, hmwang}@nudt.edu.cn}
+\renewcommand{\shortauthors}{Z. Li et al.}
 
 
-\author{Anonymous authors}
-\affiliation{Institutions}
-\email{Emails}
-
 \input{0-abstract}
 %\begin{CCSXML}
 %<ccs2012>
@@ -61,11 +57,11 @@
 %\ccsdesc[500]{Software and its engineering~Collaboration in software development}
 
 \keywords{duplicate pull-request, GitHub, dataset}
-
-
 \maketitle
 \renewcommand{\thefootnote}{}
-%\footnotetext{$^*$Corresponding author}
+\footnotetext{
+$^*$ Yue Yu and Zhixing Li are both first authors, 
+and contributed equally to the work.}
 \renewcommand{\thefootnote}{\arabic{footnote}}