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1\begin{table}[htbp]2\centering\scriptsize3\caption{Task B — MAE (×100) by class, horizon 3}\label{tab:het_b_class}4\begin{threeparttable}5\begin{tabular}{lrrr}6\toprule7Model & condo & house & plex \\8\midrule9No change & 2.70 & 5.21 & 4.64 \\10Mean growth & 2.50 & 5.16 & 4.31 \\11Momentum & 2.81 & 5.20 & 4.68 \\12Random walk with drift & 2.76 & 5.31 & 4.62 \\13Seasonal naive & 3.01 & 5.09 & 4.77 \\14AR(2), cell & 2.58 & 4.79 & 3.90 \\15Local linear trend & 3.85 & 8.81 & 6.70 \\16Ridge (panel) & 3.11 & 3.69 & 3.75 \\17LightGBM (panel) & 2.24 & 3.56 & 3.67 \\18MLP (panel) & 2.82 & 4.24 & 4.35 \\19LSTM & 2.75 & 4.36 & 4.52 \\20GRU & 2.60 & 4.08 & 4.31 \\21TCN & 2.78 & 4.19 & 4.46 \\22TFT-lite & 2.80 & 4.59 & 4.98 \\23BHPF & 3.07 & 3.70 & 3.94 \\24RAREF & 3.13 & 3.84 & 3.76 \\25QANSS & 2.39 & 4.04 & 4.00 \\26DSGFN & 2.61 & 4.30 & 4.13 \\27QREFA & 2.58 & 3.86 & 3.81 \\28\bottomrule29\end{tabular}30\end{threeparttable}31\end{table}32