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Longer titles found: Marcum Q-function (view)

searching for Q-function 17 found (29 total)

alternate case: q-function

Husimi Q representation (714 words) [view diff] exact match in snippet view article find links to article

quantum effects in superconductors. The Husimi Q distribution (called Q-function in the context of quantum optics) is one of the simplest distributions

Expectation–maximization algorithm (7,512 words) [view diff] exact match in snippet view article find links to article

expressed as equality by using the Q-function of the α-log likelihood ratio and the α-divergence. Obtaining this Q-function is a generalized E step. Its maximization

Q-learning (3,835 words) [view diff] exact match in snippet view article find links to article

become infinite. Even with a discount factor only slightly lower than 1, Q-function learning leads to propagation of errors and instabilities when the value

Wigner quasiprobability distribution (5,299 words) [view diff] no match in snippet view article find links to article

the Segal–Bargmann transform. The reasoning is as follows. The Husimi Q function of ψ {\displaystyle \psi } may be computed as the squared magnitude of

Quantum harmonic oscillator (6,952 words) [view diff] no match in snippet view article find links to article

polynomials are linked through the Wigner map. Meanwhile, the Husimi Q function of the harmonic oscillator eigenstates have an even simpler form. If we

Sinclair BASIC (5,422 words) [view diff] no match in snippet view article find links to article

are true, else returns false ASN number EXTENDED MODE then SYMBOL SHIFT+Q Function Returns the arcsine of number AT line, column; SYMBOL SHIFT+I Other Used

Birthday problem (7,115 words) [view diff] case mismatch in snippet view article find links to article

Grabner, P. J.; Kirschenhofer, P.; Prodinger, H. (1995). "On Ramanujan's Q-Function". Journal of Computational and Applied Mathematics. 58: 103–116. doi:10

Quasi-set theory (1,584 words) [view diff] exact match in snippet view article find links to article

the axiom of separation; an axiom stating the image of a q-set under a q-function is also a q-set; q-set equivalents of the axioms of infinity, regularity

Deep reinforcement learning (2,929 words) [view diff] exact match in snippet view article find links to article

discrete action spaces, these algorithms usually learn a neural network Q-function Q ( s , a ) {\displaystyle Q(s,a)} that estimates the future returns taking

Actor-critic algorithm (1,868 words) [view diff] exact match in snippet view article find links to article

either the value function V ( s ) {\displaystyle V(s)} , the action-value Q-function Q ( s , a ) {\displaystyle Q(s,a)} , the advantage function A ( s , a

Compiler Description Language (1,412 words) [view diff] no match in snippet view article find links to article

*again; less+p+m, swap item+p+m, incr+p; less+m+q, swap item+q+m, decr+q; +)). FUNCTION move up + >j + >p> + >m: less+j+p; smaller item+m+p; incr+p, *. FUNCTION

Green's function for the three-variable Laplace equation (1,910 words) [view diff] exact match in snippet view article find links to article

between the free-space Green's function in cylindrical coordinates and the Q-function expression. Likewise, see another one of Snow's pieces of work, titled

Real-root isolation (4,602 words) [view diff] no match in snippet view article find links to article

in the algorithm; if p has integer coefficients, the same is true for q) function bisection is input: p(x), a square-free polynomial, such that p(0) p(1)

Bayesian estimation of templates in computational anatomy (4,326 words) [view diff] exact match in snippet view article find links to article

^{\text{old}}}}\|^{2}-\|v_{0}\|_{V}^{2}\end{matrix}}} Compute new template maximizing Q-function, setting θ new ≐ v 0 new = arg ⁡ max θ = v 0 Q ( θ ; θ old = v 0 old )

Bayesian model of computational anatomy (3,931 words) [view diff] exact match in snippet view article find links to article

^{\text{old}}}}\|^{2}-\|v_{0}\|_{V}^{2}\end{cases}}} Compute new template maximizing Q-function, setting θ new ≐ v 0 new = arg ⁡ max θ = v 0 Q ( θ ; θ old = v 0 old )

Construction of a complex null tetrad (3,466 words) [view diff] no match in snippet view article find links to article

isolated horizon. People often Taylor expand a scalar Q {\displaystyle Q} function with respect to the horizon r=0, Q = ∑ i = 0 Q ( i ) r i = Q ( 0 ) +

Policy gradient method (6,294 words) [view diff] exact match in snippet view article find links to article

policy function is the actor and the value function is the critic. The Q-function Q π {\displaystyle Q^{\pi }} can also be used as the critic, since ∇ θ