Aiming at the problem that the Web service quality of service (QoS) estimation methods based on the non-negative latent factorization of tensor model (NLFT) depend heavily on non-negative initial random data and specially designed non-negative training schemes. which lead to low compatibility and scalability. an accelerated unconstrained latent factorization of tensor (AULFT) model wa... https://allfixelectricales.shop/product-category/microwave-magnetron/