Encyclopedia/All topics/Cost
Cost
Articles 121–180 of 310. Alphabetical by title.
Cost Jcost Logic Composition Law L To Real
A formal bridge shows that a cost function's defining equation behaves identically whether written on abstract recovered reals or ordinary real numbers.
Cost Jcost Logic Jcost L Eq Sq
A single formula, Jcost(x) = (x - 1)^2 / (2x), summarizes the entire cost of recognition; here is what that formula says and what it leaves open.
Cost Jcost Logic Jcost L Nonneg
The cost of recognizing any positive quantity is never negative, a theorem that anchors the framework's ledger of events.
Cost Jcost Logic Jcost L Unit0
The central anchor of Recognition Science's cost function is a simple fact: the cost of recognizing something identical to itself is exactly zero.
Cost Jcost Logic Jcost L Zero Iff
The cost of recognizing a thing is zero exactly when the thing is itself, and this simple fact anchors a larger framework.
Cost Jcost Logic Satisfies Composition Law L
A single equation governs how the cost of recognizing two things together must relate to recognizing them separately.
Cost Jcost Surjective On Nonneg
The recognition cost function J(x) hits every non-negative number exactly once, a fact that anchors the framework's later claims about scales and dimensions.
Cost Jcost Weak Triangle False
A natural way to measure the cost of a change fails a triangle inequality, and the failure is a proved theorem, not a gap.
Cost Jlog
The recognition cost written on a logarithmic scale takes the simple shape of a hyperbolic cosine minus one.
Cost Jlog Jlog Strict Mono On Ici0
The cost function in Recognition Science increases steadily as the recognition ratio moves away from one, a fact that anchors the framework's derived constants.
Cost Monotone Multiplicative Power
A simple rule about how costs scale forces them to follow a single power law, and the proof is a squeeze between powers of two.
Cost Monotone Multiplicative Power Eq One Of Two Eq One
If a well-behaved cost function assigns the value 1 to the number 2, then it assigns 1 to every positive integer.
Cost Monotone Multiplicative Power Exists Exponent
A single theorem pins down the only possible shapes of a certain kind of counting function, and it has a precise, narrow scope.
Cost Monotone Multiplicative Power Monotone Multiplicative Const One
A small formal lemma about number sequences, and the reason it matters for a much larger claim about the structure of cost.
Cost Monotone Multiplicative Power One Le
A small theorem about a cost function's values: once the cost of recognizing 1 is fixed, the cost of recognizing any larger integer cannot dip below it.
Cost Monotone Multiplicative Power Pow Eq
For a nondecreasing function that respects multiplication on the positive integers, the value at any power is just the power of the value.
Cost Ndim Block Reduction
A 2-dimensional calculation in Recognition Science holds exactly in every higher dimension, a theorem that keeps the framework's core result intact.
Cost Ndim Block Reduction Dinv
A simple diagonal matrix, the inverse of a metric built from hyperbolic cosines, turns out to be the key that lets a high-dimensional projector collapse exactly to a two-dimensiona
Cost Ndim Block Reduction E
One small vector, e, is the probe that lets a high-dimensional recognition space be checked for a hidden flatness, and it turns out to be the key to a general proof.
Cost Ndim Block Reduction Mu Dinv Two Sparse
A formula that looks like an n-dimensional sum turns out to depend on only two coordinates, and Recognition Science proves that collapse exactly.
Cost Ndim Block Reduction Papply E Eq P00 Gen
A machine-checked theorem shows that a high-dimensional geometric object collapses, on a carefully chosen slice, to an exact two-dimensional formula.
Cost Ndim Block Reduction Papply Not Parallel Gen
A machine-checked proof shows that a high-dimensional recognition projector, on a specially chosen slice, obeys exactly the same non-flatness law as its two-dimensional counterpart
Cost Ndim Block Reduction Sharp Dinv Apply
A single algebraic fact about a diagonal metric's inverse lets an n-dimensional geometric object collapse exactly to a two-dimensional formula.
Cost Ndim Block Reduction Two Sparse
A vector that touches only two coordinates lets a high-dimensional calculation collapse exactly into a two-dimensional one, with no approximation.
Cost Ndim Bridge
The cost ndim bridge is the machine-checked decomposition of any additive quadratic cost into a multiplicative part and a nonnegative compensatory remainder.
Cost Ndim Bridge Additive Decomposition
A simple algebraic identity relates two ways of measuring error, and it is the first step toward connecting one-dimensional cost theory to many dimensions.
Cost Ndim Bridge Additive Quadratic
A simple sum-of-squares formula defines the baseline cost of a recognition event in any number of dimensions, and a proved inequality shows when it dominates an alternative.
Cost Ndim Bridge Compensatory Nonneg Of Sq Norm Le One
A machine-checked inequality shows that a certain correction term in a cost approximation can never be negative, provided the weight vector is normalized.
Cost Ndim Bridge Compensatory Quadratic
A quadratic cost that separates into two parts, with the leftover always nonnegative when weights are normalized.
Cost Ndim Bridge Dot Sq Le Sq Norm Mul
A machine-checked theorem pins down when one quadratic cost stays below another, and it is just Cauchy-Schwarz in disguise.
Cost Ndim Bridge Multiplicative Le Additive Of Sq Norm Le One
A small inequality in a machine-checked library says that a squared dot product never outgrows the sum of squares that feeds it, once the weights are kept small.
Cost Ndim Bridge Multiplicative Quadratic
Two ways to measure a recognition error, one additive and one multiplicative, are connected by a simple identity that bounds one by the other.
Cost Ndim Calibration
Cost ndim calibration fixes the size of each recognition weight when all weights are equal and their total is fixed.
Cost Ndim Calibration Sq Norm
A simple tool for measuring vector length turns out to encode a calibration rule for recognition costs.
Cost Ndim Calibration Sq Norm Uniform
When a recognition cost's weights are all equal and its squared norm is one, each weight squared must be exactly one over the dimension.
Cost Ndim Calibration Uniform Sq Norm One
When a recognition cost's weights are all equal and their squared norm is one, each weight must be the square root of one over the dimension.
Cost Ndim Calibration Uniform Weight Of Sum One
When a cost function's weights are all equal and add to one, each weight must be exactly one divided by the number of dimensions.
Cost Ndim Calibration Weight Sum Uniform
When a set of weights is uniform, its total is just the number of weights times the common value, a simple fact with a precise scope.
Cost Ndim Connections
A geometric fact about logarithmic coordinates separates one-dimensional cost space from all higher-dimensional versions.
Cost Ndim Connections Delta
A tiny symbol that says whether two indices are equal turns out to mark the exact point where a flat geometry stops being projectively flat.
Cost Ndim Connections Not Projectively Equivalent To Zero At T Pulled Connection
A flat coordinate change in one dimension can hide its curvature; in two or more dimensions, the disguise is mathematically impossible.
Cost Ndim Connections Projectively Equivalent One Dim
In one dimension, every curved coordinate change can be flattened without distortion, a freedom that vanishes in two or more dimensions.
Cost Ndim Connections Projectively Equivalent To Zero At
Two connections are projectively equivalent when they share the same unparametrized geodesics; the framework's log-coordinate connection is one such case only in a single dime
Cost Ndim Connections T Pulled Connection Diag
A coordinate change in a flat space creates a diagonal term in its connection, and the framework proves exactly when that term can be transformed away.
Cost Ndim Connections T Pulled Connection Off Diag
In a coordinate change that flattens a space, the off-diagonal correction terms vanish exactly: a precise statement about when a connection stays simple.
Cost Ndim Connections X Flat Connection
A flat connection is the geometric way to say a space has no curvature; this declaration records the simplest such structure.
Cost Ndim Core
Cost ndim core defines the multi-component reciprocal cost by lifting the scalar cost kernel through a weighted logarithmic aggregate.
Cost Ndim Core Dot Log Hadamard Div
When costs are measured in many dimensions at once, dividing two components turns into subtracting their logarithms, a fact the framework's machine-checked library proves.
Cost Ndim Core Dot Log Hadamard Inv
A single vector identity that turns the cost of an inverse into a sign flip, and why that matters for reciprocity.
Cost Ndim Core Dot Log Hadamard Mul
A machine-checked theorem shows that in the framework's N-dimensional cost, the logarithm of a componentwise product splits into a sum, the same rule that makes slide rules wo
Cost Ndim Core Jcost N Eq Cosh Logsum
A single formula governs the cost of recognition in any number of dimensions, and it is built from ordinary logarithms and hyperbolic cosines.
Cost Ndim Core Jcost N Reciprocal
A cost function that treats a vector and its componentwise inverse as equally expensive, with a proof that this symmetry holds exactly.
Cost Ndim Core Jlog N Eq Cosh Sub One
The theorem JlogN_eq_cosh_sub_one rewrites the n-dimensional recognition cost in log coordinates as a hyperbolic cosine minus one, tying the framework's core cost to a classic
Cost Ndim Curvature Bridge
A machine-checked proof that a deformed geometric object is curved in any number of dimensions, not just the familiar two.
Cost Ndim Curvature Bridge Dot Sharp Dinv Two Sparse
A machine-checked theorem shows that a certain energy-like sum, which naively runs over all dimensions, reduces to just two terms when the system's activity is confined to two
Cost Ndim Curvature Bridge H Full Mul H Inv Full
In any number of dimensions, a certain deformed geometry has a two-sided inverse, a fact that later proves the space is curved.
Cost Ndim Curvature Bridge H Inv Full Spectator
A single algebraic lemma shows why most coordinates in a high-dimensional recognition geometry can be ignored, and what that silence does not prove.
Cost Ndim Curvature Bridge Riemann Beta Numerator Zero
A single algebraic identity about a sum of products that must be zero, and the role it plays in a larger proof about the geometry of a deformed metric.
Cost Ndim Curvature Bridge Riemann Mixed Apply Neg
A machine-checked proof that a certain deformed geometric space is curved, not flat, in any number of dimensions, under specific conditions.
Cost Ndim Curvature Bridge Riemann Mixed Apply Reduce
A machine-checked proof shows that a certain high-dimensional geometric object, built from a deformed metric, reduces exactly to a known two-dimensional formula under specific cond