**HHL algorithm** is a basic quantum **algorithm**, which is mainly used to solve linear equations. It has a wide range of potential applications in science, engineering, finance, economics and other fields. Although the current scale of quantum computers is small, we can still demonstrate basic quantum **algorithms**. In this paper, taking the **HHL** quantum **algorithm**. Diffie-Hellman key exchange is a simple public key **algorithm**. The protocol enables 2 users to establish a secret key using a public key scheme based on discrete **algorithms**. **HHL** Application: recommendation system Problem3. [Recommendation system] An unknown (hidden) m nbinarymatrix P modelling customers preferences and P is of low rank k. For a customer ione should output columns jsuch that it is likely that P ij = 1. I Quantum **algorithm** based on **HHL** that is of complexity O(poly(k)polylog(mn)) (we do not.

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**HHL**

**algorithm**) to obtain information about the solution. x\mathbf {x} x of certain classes of linear systems. Ax=b\mathbf {A}\mathbf {x}=\mathbf {b} Ax = b .. Various systems and methods are provided for quantum computing based optimization of stress testing. One exemplary method may comprise receiving a stress testing scenario, identifying one or more filtered stress testing factor data based on one or more stress testing factor data, stress testing scenario data, QC

**algorithms**, and

**algorithm**performance information, selecting one. Aug 31, 2018 · Search titles only By: Search Advanced search.