def test_sample_hising_quadratic_range(self):
linear = {'a': -4.0, 'b': -4.0, 'c': -4.0}
quadratic = {('a', 'b', 'c'): 3.2}
offset = 5
ignored_variables, ignored_interactions = _check_params(None, None)
comp_parameters = dict(ignored_interactions=ignored_interactions,
ignored_variables=ignored_variables,
penalty_strength=5.,
quadratic_range=(-1, 2)
)
sampler = ScaleComposite(
ScalingChecker(HigherOrderComposite(ExactSolver()),
h=linear,
J=quadratic, offset=offset,
**comp_parameters))
response = sampler.sample_ising(linear, quadratic, offset=offset,
**comp_parameters)
self.assertAlmostEqual(response.first.energy, -3.8)
comp_parameters = dict(ignored_interactions=ignored_interactions,
ignored_variables=ignored_variables,
penalty_strength=5.,
quadratic_range=(-1, 0.4)
)
sampler = ScaleComposite(
ScalingChecker(HigherOrderComposite(ExactSolver()),
h=linear,
J=quadratic, offset=offset,
**comp_parameters))
response = sampler.sample_ising(linear, quadratic, offset=offset,
**comp_parameters)
self.assertAlmostEqual(response.first.energy, -3.8)
def test_sample_ising_quadratic(self):
linear = {'a': -4.0, 'b': -4.0}
quadratic = {('a', 'b'): 3.2}
offset = 5
ignored_variables, ignored_interactions = _check_params(None, None)
comp_parameters = dict(ignored_interactions=ignored_interactions,
ignored_variables=ignored_variables)
sampler = ScaleComposite(ScalingChecker(ExactSolver(), h=linear,
J=quadratic, offset=offset,
**comp_parameters))
response = sampler.sample_ising(linear, quadratic,
offset=offset)
self.assertAlmostEqual(response.first.energy, 0.2)
def test_sample_hising_ignore_variables(self):
linear = {'a': -4.0, 'b': -4.0, 'c': -4.0}
quadratic = {('a', 'b', 'c'): 3.2}
offset = 5
ignored_variables, ignored_interactions = _check_params(
['a'], None)
comp_parameters = dict(ignored_interactions=ignored_interactions,
ignored_variables=ignored_variables,
ignore_offset=True,
scalar=0.5)
sampler = ScaleComposite(ScalingChecker(HigherOrderComposite(
ExactSolver()), h=linear,
J=quadratic, offset=offset,
**comp_parameters))
response = sampler.sample_ising(linear, quadratic, offset=offset,
**comp_parameters)
self.assertAlmostEqual(response.first.energy, -3.8)
