Notations: A ∗, A T, A H, E(A), tr(A), ℜ(A), and det(A) denote the conjugate, transpose, Hermitian transpose, statistical expectation, trace, real part, and determinate of a matrix A, respectively.
To quantify the statistical property of trace lengths, the PWMs and L-moments of true trace lengths on an infinite surface from the measured trace lengths by an irregular convex window are estimated.
With this information on exactly who got sick and when, plus data on seating charts, activities and social networks, they were able to use statistical techniques to trace the spread of the disease from one victim to the next.
The S.E.C. is taking its cue from criminal authorities, studying statistical formulas to trace connections, creating a powerful unit to cull tips and assign cases and even striking a deal with the Federal Bureau of Investigation to have agents embedded with the regulator.
Adds Firepower in Pursuit of Violators | The agency is taking its cue from criminal authorities, studying statistical formulas to trace connections, creating a powerful unit to cull tips and embedding F.B.I. agents with the regulator, Mr. Protess and Azam Ahmed reported.
Moreover, E and tr stand for the statistical expectation and trace operators, respectively.
When the researchers used statistical methods to trace the evolution of the three groups, they found that the exclusively American group probably arose in America about 464,000 years ago (with a range of 781,000 to 281,000 years).
Working with evolutionary geneticist Mark Thomas at UCL, Shennan developed a statistical method to trace the rise and fall of population numbers by using calibrated radiocarbon dates at archaeological sites in Europe.
Statistical analysis of trace conditioning was done on responses made in the late time window given in Table 2. Analysis of the number of CRs revealed that all groups learned at the same rate and to the same amount.
Using mathematical modeling and statistical analysis, they traced the spread of a certain strain of tuberculosis, marked by a unique patch of missing DNA, back to a period in the 18th century.
