experiments/topk_experiment.py

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#  to you under the Apache License, Version 2.0 (the
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import sys 
import os
pp = os.path.abspath('..')
p = os.path.abspath('.')
sys.path.insert(0, p)
sys.path.insert(0, pp)

from DataGenerator import PitmanYorDataGenerator, FileDataGenerator, Workload
from QueryGenerator import TopKQueryGenerator
import SketchExperiment
import logging
import Oracle
import random
import numpy as np
import scipy as sp
import copy
import types
import itertools 

import sketches.Sketches as Sketches
logging.getLogger().setLevel(logging.WARNING)

if __name__ == '__main__':     
    
    k=[3,5,7] + list(range(10,100,10))
    sizes = [100,500, 1000]
    dg = PitmanYorDataGenerator(length=int(1e5), alpha=1,beta=0.5)
    qg = TopKQueryGenerator(k_values=k, num_queries=10)
    w  = Workload(dg, qg)
    oracle = Oracle.TopKOracle(workload=w)
    
    
    opts = SketchExperiment.ExperimentOptions(
        nparallel=8,
        ndatasets=10,
        nrepetitions=1,
        save_answers=True,        
    )
    
    for w in workloads:
        e = SketchExperiment.SketchExperiment(workload=w, 
                                              oracle=oracle,
                                              options=opts,
                                              result_file="topk_exp_results.csv"
                                              )
    
    
    sketches = {'FrequentItems': (Sketches.FrequentItemsSketch, [{"k":v, "maxsize":sz, "cast_type":str} for v,sz in itertools.product(k, sizes)]),
                'TopKSampler': (Sketches.TopKSamplerSketch, [{"k":v, "maxsize":1000} for v in k]),
               }

    e.addSketches(sketches)
    
    e.prepare()
    e.execute(save_sketch=False)