Quadratic unconstrained binary optimization

Quadratic unconstrained binary optimization (QUBO) is a pattern matching technique, common in machine learning applications. QUBO is an NP hard problem.

QUBO problems may sometimes be well-suited to algorithms aided by quantum annealing.^[1]

QUBO is given by the formula: $E(X_1, X_2, ... , X_N) = \sum_{i<j=1}^N Q_{ij} \times X_i \times X_j$

References

↑ Tom Simonite (8 May 2013). "D-Wave’s Quantum Computer Goes to the Races, Wins". MIT Technology Review. Retrieved 12 May 2013.

External links

Endre Boros, Peter L Hammer & Gabriel Tavares (April 2007). "Local search heuristics for Quadratic Unconstrained Binary Optimization (QUBO)". Journal of Heuristics (Association for Computing Machinery) 13 (2): 99–132. doi:10.1007/s10732-007-9009-3. Retrieved 12 May 2013.
Di Wang & Robert Kleinberg (November 2009). "Analyzing quadratic unconstrained binary optimization problems via multicommodity flows". Discrete Applied Mathematics (Elsevier) 157 (18): 3746–3753. doi:10.1016/j.dam.2009.07.009. Retrieved 12 May 2013.