/**
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.mahout.clustering;
/** A model distribution allows us to sample a model from its prior distribution. */
public interface ModelDistribution<O> {
/**
* Return a list of models sampled from the prior
*
* @param howMany
* the int number of models to return
* @return a Model<Observation>[] representing what is known apriori
*/
Model<O>[] sampleFromPrior(int howMany);
/**
* Return a list of models sampled from the posterior
*
* @param posterior
* the Model<Observation>[] after observations
* @return a Model<Observation>[] representing what is known apriori
*/
Model<O>[] sampleFromPosterior(Model<O>[] posterior);
}