analytics clearup

analytics/analytic_unit_manager.py

@@ -7,10 +7,11 @@ from analytic_unit_worker import AnalyticUnitWorker
 
 logger = logging.getLogger('AnalyticUnitManager')
 
-analytic_unit_id = str
+AnalyticUnitId = str
-analytic_workers: Dict[analytic_unit_id, AnalyticUnitWorker] = dict()
+analytic_workers: Dict[AnalyticUnitId, AnalyticUnitWorker] = dict()
 
-def get_detector(analytic_unit_type) -> detectors.Detector:
+
+def get_detector_by_type(analytic_unit_type) -> detectors.Detector:
     if analytic_unit_type == 'GENERAL':
         detector = detectors.GeneralDetector()
     else:
@@ -21,7 +22,7 @@ def ensure_worker(analytic_unit_id, analytic_unit_type) -> AnalyticUnitWorker:
     if analytic_unit_id in analytic_workers:
         # TODO: check that type is the same
         return analytic_workers[analytic_unit_id]
-    detector = get_detector(analytic_unit_type)
+    detector = get_detector_by_type(analytic_unit_type)
     worker = AnalyticUnitWorker(analytic_unit_id, detector)
     analytic_workers[analytic_unit_id] = worker
     return worker
@@ -33,15 +34,12 @@ async def handle_analytic_task(task):
         worker = ensure_worker(task['analyticUnitId'], payload['pattern'])
 
         result_payload = {}
-        print(task['type'])
+        if task['type'] == "LEARN":
-        if task['type'] == "PREDICT":
+            await worker.do_learn(AnalyticUnitId, payload)
-            result_payload = await worker.do_predict(analytic_unit_id, payload)
+        elif task['type'] == "PREDICT":
-            print(result_payload)
+            result_payload = await worker.do_predict(AnalyticUnitId, payload)
-        elif task['type'] == "LEARN":
-            await worker.do_learn(analytic_unit_id, payload)
         else:
             raise ValueError('Unknown task type "%s"' % task['type'])
-        print(result_payload)
         return {
             'status': 'SUCCESS',
             'payload': result_payload

analytics/data_preprocessor.py

@@ -1,253 +0,0 @@
-import os.path
-import pandas as pd
-import numpy as np
-import math
-import time
-
-from tsfresh.transformers.feature_augmenter import FeatureAugmenter
-from tsfresh.feature_extraction.settings import from_columns
-from pytz import timezone
-
-
-class data_preprocessor:
-    # augmented = None
-    frame_size = 16
-    calc_features = [
-        # "value__agg_linear_trend__f_agg_\"max\"__chunk_len_5__attr_\"intercept\"",
-        # "value__cwt_coefficients__widths_(2, 5, 10, 20)__coeff_12__w_20",
-        # "value__cwt_coefficients__widths_(2, 5, 10, 20)__coeff_13__w_5",
-        # "value__cwt_coefficients__widths_(2, 5, 10, 20)__coeff_2__w_10",
-        # "value__cwt_coefficients__widths_(2, 5, 10, 20)__coeff_2__w_20",
-        # "value__cwt_coefficients__widths_(2, 5, 10, 20)__coeff_8__w_20",
-        # "value__fft_coefficient__coeff_3__attr_\"abs\"",
-        "time_of_day_column_x",
-        "time_of_day_column_y",
-        "value__abs_energy",
-        "value__absolute_sum_of_changes",
-        "value__sum_of_reoccurring_data_points",
-    ]
-    time_features = [
-        'time_of_day_column_x',
-        'time_of_day_column_y'
-    ]
-    chunk_size = 50000
-
-    def __init__(self, data_provider, augmented_path):
-        self.data_provider = data_provider
-        self.augmented_path = augmented_path
-        self.last_chunk_index = 0
-        self.total_size = 0
-        self.__init_chunks()
-        self.synchronize()
-
-    def set_data_provider(self, data_provider):
-        self.data_provider = data_provider
-
-    def synchronize(self):
-        start_frame = self.total_size
-        stop_frame = self.data_provider.size()
-
-        max_chunk_size = 30000
-        for frame in range(start_frame, stop_frame, max_chunk_size):
-            data = self.__get_source_frames(frame, min(stop_frame, frame + max_chunk_size))
-
-            if len(data) == 0:
-                return
-
-            append_augmented = self.__extract_features(data, self.calc_features)
-            self.__append_data(append_augmented)
-
-    def expand_indexes(self, start_index, stop_index):
-        return start_index, stop_index
-
-    def get_augmented_data(self, start_index, stop_index, anomalies=[]):
-        start_frame = start_index
-        stop_frame = stop_index
-        augmented = self.__get_data(start_frame, stop_frame)
-        if len(anomalies) > 0:
-            anomalies_indexes = self.transform_anomalies(anomalies)
-            augmented = augmented.drop(anomalies_indexes[:-1])
-
-        return augmented
-
-    def transform_anomalies(self, anomalies):
-        anomaly_index = None
-        dataframe = self.data_provider.get_dataframe(None)
-        for anomaly in anomalies:
-            start_time = pd.to_datetime(anomaly['from'], unit='ms')
-            finish_time = pd.to_datetime(anomaly['to'], unit='ms')
-            current_index = (dataframe['timestamp'] >= start_time) & (dataframe['timestamp'] <= finish_time)
-            if anomaly_index is not None:
-                anomaly_index = (anomaly_index | current_index)
-            else:
-                anomaly_index = current_index
-
-        rows = dataframe[anomaly_index]
-        indexes = np.unique(rows.index)
-        return indexes
-
-    def inverse_transform_anomalies(self, prediction):
-        anomalies = []
-        cur_anomaly = None
-        source_dataframe = self.data_provider.get_dataframe(None)
-        for i in prediction.index:
-            if prediction[i]:
-                start_frame_index = max(0, i - self.frame_size + 1)
-                finish_frame_index = i
-                start = source_dataframe['timestamp'][start_frame_index]
-                finish = source_dataframe['timestamp'][finish_frame_index]
-                if cur_anomaly is None:
-                    if len(anomalies) > 0 and start <= anomalies[len(anomalies) - 1]['to']:
-                        cur_anomaly = anomalies[len(anomalies) - 1]
-                        anomalies.pop()
-                    else:
-                        cur_anomaly = {'start': start, 'finish': finish}
-                cur_anomaly['to'] = finish
-            elif cur_anomaly is not None:
-                anomalies.append(cur_anomaly)
-                cur_anomaly = None
-
-        if cur_anomaly:
-            anomalies.append(cur_anomaly)
-        return anomalies
-
-    def __get_data(self, start_index, stop_index):
-        result = pd.DataFrame()
-        start_chunk = start_index // self.chunk_size
-        finish_chunk = stop_index // self.chunk_size
-        for chunk_num in range(start_chunk, finish_chunk + 1):
-            chunk = self.__load_chunk(chunk_num)
-            if chunk_num == finish_chunk:
-                chunk = chunk[:stop_index % self.chunk_size]
-            if chunk_num == start_chunk:
-                chunk = chunk[start_index % self.chunk_size:]
-            result = pd.concat([result, chunk])
-        return result
-
-    def __init_chunks(self):
-        chunk_index = 0
-        self.last_chunk_index = 0
-        while True:
-            filename = self.augmented_path
-            if chunk_index > 0:
-                filename += "." + str(chunk_index)
-            if os.path.exists(filename):
-                self.last_chunk_index = chunk_index
-            else:
-                break
-            chunk_index += 1
-        self.total_size = self.last_chunk_index * self.chunk_size
-        last_chunk = self.__load_chunk(self.last_chunk_index)
-        self.total_size += len(last_chunk)
-
-    def __append_data(self, dataframe):
-        while len(dataframe) > 0:
-            chunk = self.__load_chunk(self.last_chunk_index)
-            rows_count = min(self.chunk_size - len(chunk), len(dataframe))
-
-            rows = dataframe.iloc[0:rows_count]
-            self.__save_chunk(self.last_chunk_index, rows)
-            self.total_size += rows_count
-
-            dataframe = dataframe[rows_count:]
-            if len(dataframe) > 0:
-                self.last_chunk_index += 1
-
-    def __load_chunk(self, index):
-        filename = self.augmented_path
-        if index > 0:
-            filename += "." + str(index)
-
-        if os.path.exists(filename):
-            chunk = pd.read_csv(filename)
-            frame_index = np.arange(index * self.chunk_size, index * self.chunk_size + len(chunk))
-            chunk = chunk.set_index(frame_index)
-            return chunk
-        return pd.DataFrame()
-
-    def __save_chunk(self, index, dataframe):
-        filename = self.augmented_path
-        if index > 0:
-            filename += "." + str(index)
-
-        if os.path.exists(filename):
-            dataframe.to_csv(filename, mode='a', index=False, header=False)
-        else:
-            dataframe.to_csv(filename, mode='w', index=False, header=True)
-
-    def __get_source_frames(self, start_frame, stop_frame):
-        start_index = start_frame
-        stop_index = stop_frame
-
-        # frame = self.source_dataframe[start_index:stop_index]
-        # mat = frame.as_matrix()
-
-        source_dataframe = self.data_provider.get_data_range(max(start_index - self.frame_size + 1, 0), stop_index)
-
-        dataframe = None
-        for i in range(start_index, stop_index):
-            mini = max(0, i - self.frame_size + 1)
-            frame = source_dataframe.loc[mini:i + 1].copy()
-            frame['id'] = i
-            if dataframe is None:
-                dataframe = frame
-            else:
-                dataframe = dataframe.append(frame, ignore_index=True)
-
-        #dataframe = self.source_dataframe[start_index:stop_index].copy()
-        #dataframe['id'] = np.floor_divide(dataframe.index, self.frame_size)
-        dataframe.reset_index(drop=True, inplace=True)
-        return dataframe
-
-    def __extract_features(self, data, features=None):
-        start_frame = data['id'][0]
-        stop_frame = data['id'][len(data)-1] + 1
-        augmented = pd.DataFrame(index=np.arange(start_frame, stop_frame))
-
-        # tsfresh features
-        tsfresh_features = None
-        if features is not None:
-            tsfresh_features = set(features) - set(self.time_features)
-
-        augmented = self.__extract_tfresh_features(data, augmented, tsfresh_features)
-
-        # time features
-        augmented = self.__extract_time_features(data, augmented, features)
-        return augmented
-
-    def __extract_tfresh_features(self, data, augmented, features):
-        relevant_extraction_settings = None
-        if features is not None:
-            augmented_features = set(features)
-            relevant_extraction_settings = from_columns(augmented_features)
-
-            #impute_function = partial(impute_dataframe_range, col_to_max=self.col_to_max,
-            #                          col_to_min=self.col_to_min, col_to_median=self.col_to_median)
-
-        feature_extractor = FeatureAugmenter(
-            kind_to_fc_parameters=relevant_extraction_settings,
-            column_id='id',
-            column_sort='timestamp')
-        feature_extractor.set_timeseries_container(data)
-
-        return feature_extractor.transform(augmented)
-
-    def __extract_time_features(self, data, augmented, features):
-        if features is None:
-            features = self.time_features
-
-        seconds = np.zeros(len(augmented))
-        first_id = data['id'][0]
-
-        for i in range(len(data)):
-            id = data['id'][i] - first_id
-            timeobj = data['timestamp'][i].time()
-            seconds[id] = timeobj.second + 60 * (timeobj.minute + 60 * timeobj.hour)
-
-        norm_seconds = 2 * math.pi * seconds / (24 * 3600)
-
-        if 'time_of_day_column_x' in features:
-            augmented['time_of_day_column_x'] = np.cos(norm_seconds)
-        if 'time_of_day_column_y' in features:
-            augmented['time_of_day_column_y'] = np.sin(norm_seconds)
-        return augmented

analytics/detectors/general_detector/general_detector.py

@@ -1,18 +1,16 @@
 from detectors.general_detector.supervised_algorithm import SupervisedAlgorithm
 from detectors import Detector
 import utils
-from data_preprocessor import data_preprocessor
+
 import pandas as pd
 import logging
-from urllib.parse import urlparse
 import config
-import os.path
 import json
 
 
 NANOSECONDS_IN_MS = 1000000
 
-logger = logging.getLogger('analytic_toolset')
+logger = logging.getLogger('GENERAL_DETECTOR')
 
 
 class GeneralDetector(Detector):

analytics/detectors/general_detector/supervised_algorithm.py

@@ -53,14 +53,6 @@ class SupervisedAlgorithm(object):
         prediction = [x < 0.0 for x in prediction]
         return pd.Series(prediction, index=dataframe.index)
 
-    def save(self, model_filename):
-        with open(model_filename, 'wb') as file:
-            pickle.dump((self.clf, self.scaler), file)
-
-    def load(self, model_filename):
-        with open(model_filename, 'rb') as file:
-            self.clf, self.scaler = pickle.load(file)
-
     def __select_features(self, x, y):
         # feature_selector = FeatureSelector()
         feature_selector = FeatureSelector()

analytics/detectors/pattern_detector.py

@@ -1,10 +1,6 @@
 import models
-import utils
 
 import logging
-from urllib.parse import urlparse
-import os.path
-import json
 import config
 
 import pandas as pd
@@ -12,7 +8,7 @@ import pandas as pd
 from detectors import Detector
 
 
-logger = logging.getLogger('analytic_toolset')
+logger = logging.getLogger('PATTERN_DETECTOR')
 
 
 def resolve_model_by_pattern(pattern: str) -> models.Model:

analytics/services/data_service.py

@@ -83,5 +83,3 @@ class DataService:
         filename = file_descriptor.filename
         if filename not in self.locks:
             raise RuntimeError('No lock for file %s' % filename)
-
-