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How to measure a classifier's quality. You've just written a new classification algorithm and want to measure how well it performs on a test set, and compare it with other classifiers. What performance measure should you use? There are several standard answers. Let's assume the classifier gives an output y(x), where x is the input, which we won't discuss further, and that the true target value is t. In the simplest discussions of classifiers, both y and t are binary variables, but you might care to consider cases where y and t are more general objects also.
Nicole throws a ball straight up. Chad watches the ball from a window 5.80 above the point where Nicole released it. How fast did Nicole throw the ball
Rodney weighs 160 lb. He sits in a comfortable chair in which 90% of his weight is supported by his rear end and upper thighs and 10% by his feet, what is the average pressure over this area
A hard-boiled egg of mass 52.0 moves on the end of a spring with force constant 24.8, Calculate the magnitude of the damping constant b
A piece of wood that floats on water has a mass of 0.0175kg. A lead weight is tied to the wood and the apparent mass with the wood in air and the lead weight submerged in water is 0.0765kg. what is the specific gravity of the wood
What must be the temperature of the cold reservoir in order to increase the efficiency to 29.0%
a 5600 kg mass car is taking a turn at 72 ms. if the frictional force here is 44000n what is the radius of curvature
A point charge 8.00 nC is at the center of a cube with sides of length 0.200m. what is the electric flux through: (a) the surface of the cube (b) on of the six faces of the cube?
An ideal gas is enclosed in a cylinder with a movable piston on topof it. The piston has a mass of 8000 g and an area of 5.00cm2 and is free to slide up and down, keeping the pressure of the gas constant.
A loop of wire has the shape shown in the drawing. The top part of the wire is bent into a semicircle of radius r = 0.23 m. The normal to the plane of the loop is parallel to a constant magnetic field ( = 0°) of magnitude 0.73 T.
A 8 000-N shark is supported by a rope attached to a 4.80-m rod that can pivot at the base. Find the horizontal force exerted on the base of the rod
A U-shaped tube, open to the air on both ends, contains mercury. Water is poured into the left arm until the water column is 16.7cm deep. How far upward from its initial position does the mercury in the right arm rise? (In mm)
A hairpin configuration is formed of two semiinfinite straight wires that are 3.42 cm apart and joined by a semicircular piece of wire (whose radius must be 1.71 cm, Find the magnetic field at the origin of the coordinate system
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