Appendix Figures A.1 - A.15 of the paper "Advanced classification of hot subdwarf binaries using artificial intelligence techniques and Gaia DR3 data". This work has been accepted for publication in the journal Astronomy & Astrphysics (A&A) on September 24, 2024.

<p><strong>Figure captions:</strong></p> <p>&nbsp;</p> <p><strong>Fig. A.1.</strong> Heatmap with the number of common stars (true positives)&nbsp;labeled as binary for the five methods used.</p> <p>&nbsp;</p> <p><strong>Fig. A.2.</strong> Heatmap with the number of common stars (true negatives)&nbsp;labeled as single for the five methods used.</p> <p>&nbsp;</p> <p><strong>Fig. A.3.</strong> Color-magnitude diagrams, showing the 2815 stars of our sample from Sect. 3. Colors indicate the label predictions by SOM (left panel) and CNN (right panel).</p> <p>&nbsp;</p> <p><strong>Fig. A.4.</strong> K-S test comparing radial SOM (black) and CNN (blue).</p> <p>&nbsp;</p> <p><strong>Fig. A.5.</strong> Spectra of the star "LAMOSTJ112914.11+471501.7" (blue&nbsp;color) and in the background (gray color) the 35 stars classified as binary by Solano et al. (2022) with VOSA tools.</p> <p>&nbsp;</p> <p><strong>Fig. A.6.</strong> Spectra of the star "HD14829" (red color) and in the background (gray color) the 53 stars classified as single by Drilling et al.&nbsp;(2013).</p> <p>&nbsp;</p> <p><strong>Fig. A.7.</strong> Spectra of the star "Feige98" (red color) and in the background&nbsp;(gray color) the 53 stars classified as single by Drilling et al. (2013).</p> <p>&nbsp;</p> <p><strong>Fig. A.8.</strong> Spectra of the star "PG0304+184" (red color) and in the background (gray color) the 53 stars classified as single by Drilling et al.&nbsp;(2013).</p> <p>&nbsp;</p> <p><strong>Fig. A.9.</strong> Spectra of the star "PG1510+635" (red color) and in the background (gray color) the 53 stars classified as single by Drilling et al.&nbsp;(2013).</p> <p>&nbsp;</p> <p><strong>Fig. A.10.</strong> Cluster 0 of spectra (blue color) with the other spectra in the&nbsp;background (gray color).</p> <p>&nbsp;</p> <p><strong>Fig. A.11.</strong> Cluster 4 of spectra (brown color) with the other spectra in&nbsp;the background (gray color).</p> <p>&nbsp;</p> <p><strong>Fig. A.12.</strong> Cluster 1 of spectra (yellow color) with the other spectra in&nbsp;the background (gray color).</p> <p>&nbsp;</p> <p><strong>Fig. A.13.</strong> Cluster 3 of spectra (red color) with the other spectra in the&nbsp;background (gray color).</p> <p>&nbsp;</p> <p><strong>Fig. A.14.</strong> Cluster -1 of spectra (pink color) with the other spectra in the&nbsp;background (gray color).</p> <p>&nbsp;</p> <p><strong>Fig. A.15.</strong> Cluster 2 of spectra (green color) with the other spectra in&nbsp;the background (gray color).</p>