减少文档中的空白

Question

我正在用 tex 写一篇论文（见截图），我发现渲染器有时会在两个部分之间留下很多空白。特别是，如果我在本节末尾有一个表格，那么表格和下一节的开头之间就会有很多空白。

是否有一个文档范围的设置可以用来减少浪费的空白？

更新这是完整 overleaf 项目的链接。https://www.overleaf.com/8871433zwvgwsnqtrhj

%%%%%%%%%%%%%%%% CODE FOR IMAGE 1 RIGHT COLUMN %%%%%%%%%%%%%%%%%%%%%%
The above proposition shows that if $\ab=\bb$ and $\cb \ge 0$ then by setting
$\bE = \rp \cap B(\ab, ||\ab||)$ we can satisfy the above constraints.
Unfortunately, we were not able to drive suitable constraints for models C and
D. \tabref{tab:proptrans} summarizes our proposed constraints.
\begin{table}[htbp]
  \setlength{\tabcolsep}{1.2pt}
  \centering
  \begin{tabular}{c | l}
    Model & \multicolumn{1}{c}{Constraints}\\\hline
    A & $\begin{aligned}
      &\r_1'' \ge \lambda \r_1, \lambda \r_2 + (1-\lambda)\r'_1 \le \Z\\
      & \ip{\e''}{\r_2''} \ge (1-\lambda)\ip{\e'}{\r_2'}\end{aligned}$\\[1ex]\hline
    B & $\begin{aligned}
      &\r_1'' + \e'' + (1-\lambda)(\r_1' + \e')=0,\\
      &{\ip{\r_2''}{\e''} \ge (1-\lambda)\ip{\r_2'}{\e'}}, \text{and}\\
      &\ab \ge \Z, \forall x \in \cE,\ \x \in \rp \cap B(\ab, ||\ab||)\end{aligned}$\\
  \end{tabular}
  \caption{Sufficient constraints for enforcing $\proptrans(r, r', e', r'',
    e'')$. $\ab = \frac{\r_1'' - \lambda \r_1 + \e''}{\lambda}$.}
  \label{tab:proptrans}
\end{table}



\subsubsection{Type Implication}

%%%%%%%%%%%%%%%% CODE FOR IMAGE 2 %%%%%%%%%%%%%%%%
\tabref{tab:impl} summarizes the constraints for
different scoring functions.
\begin{table}[htbp]
  %\centering
  \begin{tabular}{r | l}
    Model & \multicolumn{1}{c}{Constraints}\\\hline
    A, \AR , B &  $\r \le \r'$\\
    C, D &  $\r \le \r' \le -\r$
    \end{tabular}
  \caption{Constraints sufficient for enforcing $\implication(r, r')$ under different
  score models and composition functions. The constraint that $\e \ge \Z \forall
  e \in \cE$ applies in all rows.}
  \label{tab:impl}
\end{table}

\subsubsection{Reverse Relational Implication}

 %%%%%%%%%%%%%%%%%% CODE FOR PREAMBLE %%%%%%%%%%%%%%%
\documentclass[11pt,a4paper]{article}
\usepackage[hyperref]{acl2017}
\usepackage{times}
\usepackage{latexsym}
\usepackage{url}
\usepackage[]{enumitem}
\usepackage{mfirstuc}
\usepackage{adjustbox}
\usepackage{lipsum}
\usepackage[font=small,skip=2pt]{caption}
\usepackage{subcaption}
\usepackage[disable]{todonotes} % insert [disable] to disable all notes.
\usepackage{xcolor}
\usepackage{amssymb,amsmath,amsthm,mathtools,graphicx,url,xspace,booktabs,microtype}
\usepackage{bm}
\usepackage[]{breqn}
\usepackage{dcolumn}
\newcolumntype{H}{>{\setbox0=\hbox\bgroup}c<{\egroup}@{}}
\newtheorem{proposition}{Proposition}
% ------------- listings -------------- %
\usepackage{listings}
\usepackage[]{changepage}
\lstset{basicstyle=\ttfamily,linewidth=10cm}
% ------------- algorithmicx --------------- %
% The package algorithmicx itself doesn’t define any algorithmic commands
% algpseudocode is the predefined command set that must be used.
\usepackage{algorithm}
\PassOptionsToPackage{noend}{algpseudocode}
\usepackage{algpseudocode}
\algnewcommand{\LeftComment}[1]{\(\triangleright\) #1}%
\algrenewcommand\algorithmicindent{0.6em}%
\usepackage{xpatch}
\makeatletter%
\xpatchcmd{\algorithmic}{\ALG@tlm\z@}{\leftmargin\z@\ALG@tlm\z@}{}{}%
\makeatother
% Set skips to very low values
\newcommand{\zerodisplayskips}{%
\setlength{\abovedisplayskip}{0pt}%
\setlength{\belowdisplayskip}{0pt}%
\setlength{\abovedisplayshortskip}{0pt}%
\setlength{\belowdisplayshortskip}{0pt}}
\appto{\normalsize}{\zerodisplayskips}