1. CSPLib
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  3. Essence
  4. Data

Essence

File Problem Notes
easy-essence.param 008: Vessel Loading

An easy instance in the Essence format. Given mainly as an example.
eparams.param 055: Equidistant Frequency Permutation Arrays

Example .param file for Essence model with parameters from specification
harder-essence.param 008: Vessel Loading

Another instance in the Essence format.
input.param 042: diagnosis

Example .param file describing full-adder example for use with Essence model
instances_essence.zip 065: Optimal Financial Portfolio Design

A set of 23 instances ranging from small to realistic sizes
p01.param 040: A Distribution Problem with Wagner-Whitin Costs

Example .param file for use with Essence model, describes example problem from Tarim & Miguel
p01.param 051: Tank Allocation

.param file for use with essence model, describes same problem as chemical.xml
ProgressivePartyProblem-essence.zip 013: Progressive Party Problem

10 instances
sample-essence.param 002: Template Design

A sample instance file to go with the Essence model.
sample-essence.param 022: Bus Driver Scheduling

A sample instance in Essence format.
sample.param 133: Knapsack Problem
SchursLemma-essence.zip 015: Schur's Lemma

Some instances files in Essence format.
SocialGolfersProblem-essence.zip 010: Social Golfers Problem

Some data files in Essence format.
steelMillEssence.zip 038: Steel Mill Slab Design

A bunch of instances in Essence format.