Gradient descent — For the analytical method called steepest descent see Method of steepest descent. Gradient descent is an optimization algorithm. To find a local minimum of a function using gradient descent, one takes steps proportional to the negative of the… … Wikipedia
Stochastic gradient descent — is a general optimization algorithm, but is typically used to fit the parameters of a machine learning model.In standard (or batch ) gradient descent, the true gradient is used to update the parameters of the model. The true gradient is usually… … Wikipedia
Descent direction — In optimization, a descent direction is a vector that, in the sense below, moves us closer towards a local minimum of our objective function . Suppose we are computing by an iterative method, such as line search. We define a descent direction at… … Wikipedia
Gradient — In vector calculus, the gradient of a scalar field is a vector field which points in the direction of the greatest rate of increase of the scalar field, and whose magnitude is the greatest rate of change.A generalization of the gradient for… … Wikipedia
Descent — Not to be confused with Dissent. Descent may refer to: In genealogy and inheritance: Common descent, concept in evolutionary biology Kinship and descent, one of the major concepts of cultural anthropology Pedigree chart or family tree Ancestry… … Wikipedia
Gradient — Gra di*ent, n. 1. The rate of regular or graded ascent or descent in a road; grade. [1913 Webster] 2. A part of a road which slopes upward or downward; a portion of a way not level; a grade. [1913 Webster] 3. The rate of increase or decrease of a … The Collaborative International Dictionary of English
gradient maker — Gradient Gra di*ent, n. 1. The rate of regular or graded ascent or descent in a road; grade. [1913 Webster] 2. A part of a road which slopes upward or downward; a portion of a way not level; a grade. [1913 Webster] 3. The rate of increase or… … The Collaborative International Dictionary of English
Gradient post — Gradient Gra di*ent, n. 1. The rate of regular or graded ascent or descent in a road; grade. [1913 Webster] 2. A part of a road which slopes upward or downward; a portion of a way not level; a grade. [1913 Webster] 3. The rate of increase or… … The Collaborative International Dictionary of English
descent — [n1] moving down; lowering cave in, coast, coming down, crash, declension, declination, decline, declivity, dip, downgrade, droop, drop, drop off, fall, falling, grade, gradient, header, hill, inclination, incline, landslide, plummeting, plunge,… … New thesaurus
descent — noun 1) the plane began its descent Syn: dive, drop; fall, pitch, nosedive 2) their descent of the mountain Syn: downward climb 3) a steep descent Syn … Thesaurus of popular words
gradient — /gray dee euhnt/, n. 1. the degree of inclination, or the rate of ascent or descent, in a highway, railroad, etc. 2. an inclined surface; grade; ramp. 3. Physics. a. the rate of change with respect to distance of a variable quantity, as… … Universalium