Efficient Management of High-Frequency Sensor Data Streams Using a Read-Optimized Learned Index

. 2026 Feb 13;26(4):1217. doi: 10.3390/s26041217

Algorithm 4: Background Sensor Data Archiving

Input: LeafNode L (DB is full)

Output: void

1: /* Batch insertion of data */

L . M D S . b u l k_i n s e r t (L . D B . g e t_a l l_i t e m s ())

3: /* Reconstruct the hierarchical MBR */

L . H M B R . r e b u i l d_f r o m (L . M D S . g e t_a l l_i t e m s ())

5: /* Clear the buffer */

L . D B . c l e a r ()

7: /* Clear CF: If the CF is too full, rebuild it here */

8: if

L . C F . l o a d_f a c t o r () > 0.95

then

L . C F . r e b u i l d (L . M D S . g e t_a l l_d e l e t e d_I D s ())

10: end if