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算法略有改变

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算法略有改变

这是我对算法的 MWE，但它抛出了一个错误，我不知道如何获取输入和初始化。我希望它看起来像附图一样。

\documentclass[a4paper,10pt,twocolumn]{article}
\usepackage[utf8]{inputenc}
\usepackage{booktabs,lipsum}
\usepackage{algorithm}
\usepackage{algpseudocode}

\begin{document}
\begin{algorithm}
        \caption{Algorithm 2: Boosted $K$ Nearest Neighbor}
        \begin{algorithmic}[1]
%         \qinput{Input:} \\
%    \State $S={s_i}={\left(x_i,y_i\right)$
         \For{t = 1 to T} \do
        \State $S_t \gets S_{t-1}$
        \For{$s_q \in S_t$} \do
          \State $N_q \gets$ k nearest neighbors 
          \State of $s_q$ using $D(s_q,s_i)$
          \State label($s_q$)$=argmax\sum_{s_i \in N_q}D(s_q,s_i)$;
        \If{label($s_q$)$\ne y_q$}
            \For{$s_i \in N_i$} \do
            \If{$y_i \ne y_q$}
              \State $w_{i}^{t} \gets w_{i}^{t} - \lambda/d(x_q,x_i)$;
            \Else
              \State $w_{i}^{t} \gets w_{i}^{t} + \lambda/d(x_q,x_i)$;
            \EndIf
            \EndFor
        \EndIf
        \EndFor
        \If{label($s_q$)$=y_q \forall_{s_q}$}
          \State break
        \EndIf
     \EndFor
        \end{algorithmic}
\end{algorithm}
\end{document}

答案1

这是一个提供可行输出的选项。我删除了标题中的物理编号：

在此处输入图片描述

\documentclass[10pt,twocolumn]{article}
\usepackage{algorithm,algpseudocode}% http://ctan.org/pkg/{algorithms,algorithmx}
\algnewcommand{\Inputs}[1]{%
  \State \textbf{Inputs:}
  \Statex \hspace*{\algorithmicindent}\parbox[t]{.8\linewidth}{\raggedright #1}
}
\algnewcommand{\Initialize}[1]{%
  \State \textbf{Initialize:}
  \Statex \hspace*{\algorithmicindent}\parbox[t]{.8\linewidth}{\raggedright #1}
}

\begin{document}
\begin{algorithm}
  \caption{Boosted $K$ Nearest Neighbour}
  \begin{algorithmic}[1]
    \Inputs{$S={s_i}=\left(x_i,y_i\right)$}
    \Initialize{\strut$w_i^0 \gets 0$, $i=1,\ldots,n$ \\ $S_0 \gets S$}
    \For{t = 1 to T}
      \State $S_t \gets S_{t-1}$
      \For{$s_q \in S_t$}
        \State $N_q \gets$ k nearest neighbors 
        \State of $s_q$ using $D(s_q,s_i)$
        \State label($s_q$)$=argmax\sum_{s_i \in N_q}D(s_q,s_i)$;
        \If{label($s_q$)$\ne y_q$}
          \For{$s_i \in N_i$}
            \If{$y_i \ne y_q$}
              \State $w_{i}^{t} \gets w_{i}^{t} - \lambda/d(x_q,x_i)$;
            \Else
              \State $w_{i}^{t} \gets w_{i}^{t} + \lambda/d(x_q,x_i)$;
            \EndIf
          \EndFor
        \EndIf
      \EndFor
      \If{label($s_q$)$=y_q \forall_{s_q}$}
        \State break
      \EndIf
    \EndFor
  \end{algorithmic}
\end{algorithm}
\end{document}

新定义的\Inputsand（等价）\Initialize接受一个参数，该参数将其内容设置为\Statex缩进\algorithmicindent（默认值），以与其他算法元素对齐。内容存储在top-aligned中\parbox，该 op-aligned 可容纳 80% 的行。我相信您不需要更多，但如果您需要，也可以修复它以避免导致框过满。

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