Configuration Parameters Reference¶

Here are the configuration parameters supported by pebl. These can set in a configuration file or via the config.set() function.

data¶

data.discretize¶: Number of bins used to discretize data. Specify 0 to indicate that data should not be discretized. default=0

data.filename¶: File to read data from. default=None

data.text¶: The text of a dataset included in config file. default=

learner¶

learner.numtasks¶: Number of learner tasks to run. default=1

learner.type¶

Type of learner to use.

The following learners are included with pebl:

greedy.GreedyLearner
simanneal.SimulatedAnnealingLearner
exhaustive.ListLearner

default=greedy.GreedyLearner

greedy¶

greedy.max_iterations¶: Maximum number of iterations to run. default=1000

greedy.max_time¶: Maximum learner runtime in seconds. default=0

greedy.max_unimproved_iterations¶: Maximum number of iterations without score improvement before a restart. default=500

greedy.seed¶: Starting network for a greedy search. default=

simanneal¶

simanneal.delta_temp¶: Change in temp between steps. default=0.5

simanneal.max_iters_at_temp¶: Max iterations at any temperature. default=100

simanneal.seed¶: Starting network for a greedy search. default=

simanneal.start_temp¶: Starting temperature for a run. default=100.0

listlearner¶

listlearner.networks¶: List of networks to score. default=

localscore_cache¶

localscore_cache.maxsize¶: Max number of localscores to cache. Default=-1 means unlimited size. default=-1

result¶

result.filename¶: The name of the result output file default=result.pebl

result.format¶: The format for the pebl result file (pickle or html). default=pickle

result.size¶: Number of top-scoring networks to save. Specify 0 to indicate that all scored networks should be saved. default=1000

gibbs.burnin¶: Burn-in period for the gibbs sampler (specified as a multiple of the number of missing values) default=10

gibbs.max_iterations¶

Stopping criteria for the gibbs sampler.

The number of Gibb’s sampler iterations to run. Should be a valid python expression using the variable n (number of missing values). Examples:

n**2 (for n-squared iterations)

100 (for 100 iterations)

default=n**2

taskcontroller¶

taskcontroller.type¶: The task controller to use. default=serial

multiprocess¶

multiprocess.poolsize¶: Number of processes to run concurrently (0 means no limit) default=0

xgrid¶

xgrid.controller¶: Hostname or IP of the Xgrid controller. default=

xgrid.grid¶: Id of the grid to use at the Xgrid controller. default=0

xgrid.password¶: Password for the Xgrid controller. default=

xgrid.peblpath¶: Full path to the pebl script on Xgrid agents default=pebl

xgrid.pollinterval¶: Time (in secs) to wait between polling the Xgrid controller. default=60.0

ipython1¶

ipython1.controller¶: IPython1 TaskController (default is 127.0.0.1:10113) default=127.0.0.1:10113

ec2¶

ec2.config¶: EC2 config file. This is kept seperate from pebl config because it contains authentication keys, etc. default=

ec2.max_count¶: Maximum number of EC2 instances to create (default=0 means the same number as ec2.min_count). default=0

ec2.min_count¶: Minimum number of EC2 instances to create (default=1). default=1