The reason being, Spark is limited by available RAM and must know which data has to be kept in-memory in order to overcome this limitation.
"What we keep in memory is ours, unchanged forever," reads the inscription on the marble slab.
No observations are kept in memory.
By this way, no history needs to be kept in memory.
Memory belief is (normally, at any rate) belief that has been kept in memory.
This requires that a history of frames should be kept in memory, which can lead to high memory requirements.
The low-low frequency band coefficients are kept in memory, and they will be used in the inverse extraction process.
A history of the last minute of heartbeats is kept in memory to determine the actual progression of load.
The matrix U LS = U SL T is kept in memory by the fusion filter for the final assimilation stage.
Fading factors can also be implemented in nonincremental algorithms if all considered sessions are kept in memory in the same order by which they arrived.
One advantage is that, when a steady state is reached, currents, voltages and hence power in a memristor NN vanish, whereas memristors keep in memory the processing result.
