Abstract: A vacuum switching valve and a suction system having the same. The vacuum switching valve comprises: a valve body, comprising a first end and a second end, the second end being provided with an air inlet, an air outlet and a through hole; a valve element movably arranged in the valve body; a cylinder, the cylinder being connected to the first end and the valve element, the cylinder drives the valve element to move in the valve body, to close or open the air inlet; a stopper passing through the through hole, the stopper comprising a third end and a fourth end, the third end being connected to the valve element, the fourth end being located on the side of the through hole away from the valve element.

Abstract: Techniques to ensemble machine learning (ML) models are provided. A plurality of residues is generated by processing a plurality of input records using a plurality of ML models. A plurality of data clusters is identified by evaluating, using a clustering model, the plurality of input records and the plurality of residues. A first ensemble is generated for a first data cluster of the plurality of data clusters, where the first ensemble comprises one or more of the plurality of ML models. Upon determining that a new input record corresponds to the first data cluster, the new input record is processed using the first ensemble.