pyro/infer/trace_elbo.py
Killed 48 out of 64 mutantsSurvived
Survived mutation testing. These mutants show holes in your test suite.Mutant 209
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -72,7 +72,7 @@
return loss
def _differentiable_loss_particle(self, model_trace, guide_trace):
- elbo_particle = 0
+ elbo_particle = 1
surrogate_elbo_particle = 0
log_r = None
Mutant 211
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -73,7 +73,7 @@
def _differentiable_loss_particle(self, model_trace, guide_trace):
elbo_particle = 0
- surrogate_elbo_particle = 0
+ surrogate_elbo_particle = 1
log_r = None
# compute elbo and surrogate elbo
Mutant 216
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -78,7 +78,7 @@
# compute elbo and surrogate elbo
for name, site in model_trace.nodes.items():
- if site["type"] == "sample":
+ if site["type"] == "XXsampleXX":
elbo_particle = elbo_particle + torch_item(site["log_prob_sum"])
surrogate_elbo_particle = surrogate_elbo_particle + site["log_prob_sum"]
Mutant 217
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -79,7 +79,7 @@
# compute elbo and surrogate elbo
for name, site in model_trace.nodes.items():
if site["type"] == "sample":
- elbo_particle = elbo_particle + torch_item(site["log_prob_sum"])
+ elbo_particle = elbo_particle - torch_item(site["log_prob_sum"])
surrogate_elbo_particle = surrogate_elbo_particle + site["log_prob_sum"]
for name, site in guide_trace.nodes.items():
Mutant 220
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -80,7 +80,7 @@
for name, site in model_trace.nodes.items():
if site["type"] == "sample":
elbo_particle = elbo_particle + torch_item(site["log_prob_sum"])
- surrogate_elbo_particle = surrogate_elbo_particle + site["log_prob_sum"]
+ surrogate_elbo_particle = surrogate_elbo_particle - site["log_prob_sum"]
for name, site in guide_trace.nodes.items():
if site["type"] == "sample":
Mutant 228
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -86,7 +86,7 @@
if site["type"] == "sample":
log_prob, score_function_term, entropy_term = site["score_parts"]
- elbo_particle = elbo_particle - torch_item(site["log_prob_sum"])
+ elbo_particle = elbo_particle + torch_item(site["log_prob_sum"])
if not is_identically_zero(entropy_term):
surrogate_elbo_particle = surrogate_elbo_particle - entropy_term.sum()
Mutant 240
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -97,7 +97,7 @@
site = log_r.sum_to(site["cond_indep_stack"])
surrogate_elbo_particle = surrogate_elbo_particle + (site * score_function_term).sum()
- return -elbo_particle, -surrogate_elbo_particle
+ return +elbo_particle, -surrogate_elbo_particle
def differentiable_loss(self, model, guide, *args, **kwargs):
"""
Mutant 242
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -121,7 +121,7 @@
Computes the ELBO as well as the surrogate ELBO that is used to form the gradient estimator.
Performs backward on the latter. Num_particle many samples are used to form the estimators.
"""
- loss = 0.0
+ loss = 1.0
# grab a trace from the generator
for model_trace, guide_trace in self._get_traces(model, guide, args, kwargs):
loss_particle, surrogate_loss_particle = self._differentiable_loss_particle(model_trace, guide_trace)
Mutant 245
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -125,7 +125,7 @@
# grab a trace from the generator
for model_trace, guide_trace in self._get_traces(model, guide, args, kwargs):
loss_particle, surrogate_loss_particle = self._differentiable_loss_particle(model_trace, guide_trace)
- loss += loss_particle / self.num_particles
+ loss = loss_particle / self.num_particles
# collect parameters to train from model and guide
trainable_params = any(site["type"] == "param"
Mutant 246
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -125,7 +125,7 @@
# grab a trace from the generator
for model_trace, guide_trace in self._get_traces(model, guide, args, kwargs):
loss_particle, surrogate_loss_particle = self._differentiable_loss_particle(model_trace, guide_trace)
- loss += loss_particle / self.num_particles
+ loss -= loss_particle / self.num_particles
# collect parameters to train from model and guide
trainable_params = any(site["type"] == "param"
Mutant 247
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -125,7 +125,7 @@
# grab a trace from the generator
for model_trace, guide_trace in self._get_traces(model, guide, args, kwargs):
loss_particle, surrogate_loss_particle = self._differentiable_loss_particle(model_trace, guide_trace)
- loss += loss_particle / self.num_particles
+ loss += loss_particle * self.num_particles
# collect parameters to train from model and guide
trainable_params = any(site["type"] == "param"
Mutant 249
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -128,7 +128,7 @@
loss += loss_particle / self.num_particles
# collect parameters to train from model and guide
- trainable_params = any(site["type"] == "param"
+ trainable_params = any(site["type"] != "param"
for trace in (model_trace, guide_trace)
for site in trace.nodes.values())
Mutant 253
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -132,7 +132,7 @@
for trace in (model_trace, guide_trace)
for site in trace.nodes.values())
- if trainable_params and getattr(surrogate_loss_particle, 'requires_grad', False):
+ if trainable_params and getattr(surrogate_loss_particle, 'requires_grad', True):
surrogate_loss_particle = surrogate_loss_particle / self.num_particles
surrogate_loss_particle.backward(retain_graph=self.retain_graph)
warn_if_nan(loss, "loss")
Mutant 254
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -132,7 +132,7 @@
for trace in (model_trace, guide_trace)
for site in trace.nodes.values())
- if trainable_params and getattr(surrogate_loss_particle, 'requires_grad', False):
+ if trainable_params or getattr(surrogate_loss_particle, 'requires_grad', False):
surrogate_loss_particle = surrogate_loss_particle / self.num_particles
surrogate_loss_particle.backward(retain_graph=self.retain_graph)
warn_if_nan(loss, "loss")
Mutant 255
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -133,7 +133,7 @@
for site in trace.nodes.values())
if trainable_params and getattr(surrogate_loss_particle, 'requires_grad', False):
- surrogate_loss_particle = surrogate_loss_particle / self.num_particles
+ surrogate_loss_particle = surrogate_loss_particle * self.num_particles
surrogate_loss_particle.backward(retain_graph=self.retain_graph)
warn_if_nan(loss, "loss")
return loss
Mutant 257
--- pyro/infer/trace_elbo.py
+++ pyro/infer/trace_elbo.py
@@ -135,7 +135,7 @@
if trainable_params and getattr(surrogate_loss_particle, 'requires_grad', False):
surrogate_loss_particle = surrogate_loss_particle / self.num_particles
surrogate_loss_particle.backward(retain_graph=self.retain_graph)
- warn_if_nan(loss, "loss")
+ warn_if_nan(loss, "XXlossXX")
return loss