Help to remove vertical space between text and table

Question

i need to remove this vertical space from the text and the table. Here are a screen of the results that i want to change

See the space between the word "sono" and the table, it's too much and i want it to get closer to the table. I will also add the script:

\uppercase{è} stato inoltre effettuato  il calcolo dei  valori della funzione Quantile Loss per i due modelli, i risultati sono:

\begin{table}[H]
    \centering
    \begin{tabular}{|c|c|c|c|}
        \hline

I've tried different solutions like \vspace{-0.5em} or \vspace*{-\baselineskip} or \vfill but this didn't change anything. Can you help me?

EDIT 1: I was trying to do a whole new document to answer some of your question, while doing that i found out that if i add only a portion of the whole work i don't have the issue, i don't know why. I didn't change a single line of code,Any idea now? I add screen of the new results

Answer 1

I suspect the table environment is messing with the spacing. Without seeing all the code, I would suggest removing the \begin{table} \centering. I would then put the remaining \begin{tabular} ... \end{tabular} inside a \begin{center} ... \end{center}. That way you would have more control over the vertical spacing.

So something like

\uppercase{è} stato inoltre effettuato il calcolo dei valori della funzione Quantile Loss per i due modelli, i risultati sono:

\begin{center} \begin{tabular}{|c|c|c|c|} \hline ... \end{tabular} \end{center}

Hope this helps.