Single context prediction

src/data-hub/proactive-community-detection-microservice/app/configs/routes.yml

@@ -14,4 +14,58 @@ paths:
             type: object
       responses:
         '200':
-          description: "Successful echo of request data"
\ No newline at end of file
+          description: "Successful echo of request data"
+          
+  /use-cases/{use_case}/tables/{table}/layers/{layer_name}/predictions:
+    get:
+      operationId: "routes.predictions.get"
+      security:
+        - JwtRegular: []
+      tags:
+          - "Predictions"
+      summary: "Get predictions"
+      parameters: 
+        - name: "use_case"
+          in: "path"
+          description: "Name of the use-case"
+          required: true
+          type: "string"
+        - name: "table"
+          in: "path"
+          description: "Name of the table"
+          required: true
+          type: "string"
+        - name: "layer_name"
+          in: "path"
+          description: "Name of the layer"
+          required: true
+          type: "string"
+      responses:
+        '200':
+            description: "Successful operation"
+            schema: 
+                $ref: "#/definitions/Prediction"
+        '404':
+            description: "Predictions not found"
+
+
+definitions:
+  Prediction:
+    type: object
+    properties:
+        use_case:
+            type: string
+        table:
+            type: string
+        method:
+            type: string
+        layer:
+            type: string
+        reference_layer:
+            type: string
+        cluster_label:
+            type: string
+        time_window:
+            type: string
+        prediction:
+            type: integer

src/data-hub/proactive-community-detection-microservice/app/db/dao/__init__.py

@@ -2,3 +2,4 @@ from db.dao.cluster import Cluster as ClusterDao
 from db.dao.layer import Layer as LayerDao
 from db.dao.timeslice import TimeSlice as TimeSliceDao
 from db.dao.layer_pair import LayerPair as LayerPairDao
+from db.dao.prediction_result import PredictionResult

src/data-hub/proactive-community-detection-microservice/app/db/dao/prediction_result.py

+from typing import List, Dict
+
+class PredictionResult:
+    def __init__(self, use_case: str, table: str, method: str, 
+                 layer: str, reference_layer: str, cluster_id: str, 
+                 time_window: str, prediction: int):
+        self.use_case = use_case
+        self.table = table
+        self.method = method
+        self.layer = layer
+        self.reference_layer = reference_layer
+
+        self.cluster_id = cluster_id
+        self.time_window = time_window
+        self.prediction = prediction
+        
+    
+    @staticmethod
+    def create_from_dict(dict_) -> 'PredictionResult':
+        obj = PredictionResult(None, None, None, None, None, None, None, None)
+        obj.__dict__.update(dict_)
+        return obj

src/data-hub/proactive-community-detection-microservice/app/db/repository.py

@@ -23,6 +23,7 @@ class Repository(MongoRepositoryBase):
         self._layer_pair_collection = 'layer_pairs'
         self._clusters_collection = 'clusters'
         self._time_slice_collection = 'time_slices'
+        self._prediction_result_collection = 'prediction_results'
        
 
     def DROP(self, confirm:bool=False):
@@ -120,6 +121,14 @@ class Repository(MongoRepositoryBase):
     def get_layer_pairs(self, use_case: str) -> List[LayerPairDao]:
         entries = super().get_entries(self._layer_pair_collection, selection={'use_case': use_case})
         return [LayerPairDao.create_from_dict(e) for e in entries]
-
 #endregion
 
+
+#region PredictionResult
+    def add_prediction_result(self, prediction_result: PredictionResult):
+        super().insert_entry(self._prediction_result_collection, prediction_result.__dict__)
+
+    def get_prediction_results(self, use_case: str) -> List[PredictionResult]:
+        entries = super().get_entries(self._prediction_result_collection, selection={'use_case': use_case}, projection={'_id': 0})
+        return [PredictionResult.create_from_dict(e) for e in entries]
+#endregion

src/data-hub/proactive-community-detection-microservice/app/processing/__init__.py

 from processing.ClusterMetricsCalculator import ClusterMetricsCalculator, ClusterMetricsCalculator1D, ClusterMetricsCalculator2D, ClusterMetricsCalculatorFactory
 from processing.DataSampler import DataSampler
-from processing.fetching import fetching
\ No newline at end of file

src/data-hub/proactive-community-detection-microservice/app/processing/ml/predict_single_context.py

+from processing.data_prep.metrics_base import get_cyclic_time_feature
+ 
+N = 3 # Currently N is fixed to 3
+method = 'single_context'
+
+####################
+import pandas as pd
+from pandas import DataFrame
+#####################
+import json
+from entities import Cluster
+import collections
+import numpy as np
+from typing import Iterable, Tuple
+######################
+from typing import Dict
+from typing import Tuple
+
+def get_metrics(cur_cluster: Cluster) -> Tuple:
+    return (cur_cluster.size, cur_cluster.std_dev, cur_cluster.scarcity, cur_cluster.importance1, cur_cluster.importance2, cur_cluster.range_, cur_cluster.global_center_distance, get_cyclic_time_feature(cur_cluster.get_time_info()))
+####################
+import pickle 
+#####################
+def flatten_metrics_datapoint(datapoint: list) -> Tuple['X', np.array]:
+    '''
+    Flattens a single metrics data point in the form:
+    [(cluster_size, cluster_variance, cluster_density, cluster_import1, cluster_import2, cluster_range, cluster_center, (time_f1, time_f2))^N]
+    to:
+    (X)
+    '''
+    flat_list = []
+    for entry in datapoint: # for all x
+        flat_list.extend(entry[:-1]) # add all number features except the time tuple
+        flat_list.extend(entry[-1]) # add time tuple
+
+    return np.asarray(flat_list)
+######################
+def increase_time_window(time_window_id: str):
+    tuple_ = eval(time_window_id)
+    
+    if tuple_[1] == 52:
+        # 1st week next year
+        return (tuple_[0]+1 , 1)
+    else:
+        # next week
+        return str((tuple_[0], tuple_[1]+1))
+#########################
+from db.repository import Repository
+from db.dao import PredictionResult
+
+repo = Repository()
+
+def run_prediction(use_case: str):
+    for layer in repo.get_layers_for_use_case(use_case):
+        layer_name = layer.layer_name
+
+        ################
+        df: DataFrame = pd.read_csv(f'data/{use_case}/ml_input/single_context/{layer_name}.csv', index_col=0)
+        #################
+        path_in = f"data/{use_case}/cluster_metrics/{layer_name}.json"
+        with open(path_in, 'r') as file:
+            data = [Cluster.create_from_dict(cl_d) for cl_d in json.loads(file.read())]
+
+        data.sort(key=lambda cl: (eval(cl.cluster_id), eval(cl.time_window_id)))
+        #####################
+        cluster_map: Dict['cluster_id', 'time_windows'] = {}
+
+        for cluster in data:
+            id_ = cluster.cluster_id
+
+            if id_ not in cluster_map:
+                cluster_map[id_] = []
+
+            cluster_map[id_].append(cluster)
+        ####################        
+        with open(f'data/{use_case}/ml_output/{method}/{layer_name}.model', 'rb') as file:
+            svc = pickle.load(file)
+        #####################
+        for cluster_id, time_windows in cluster_map.items():
+            v = [get_metrics(c) for c in time_windows[-N:]] # metrics for last N time windows
+            v_flattened = flatten_metrics_datapoint(v)
+            v_flattened = v_flattened.reshape(1, v_flattened.shape[0]) # reshape for ML with only 1 pred value
+            res = PredictionResult(use_case, use_case, method, layer_name, None, cluster_id, increase_time_window(time_windows[-1].time_window_id), svc.predict(v_flattened)[0])
+            repo.add_prediction_result(res)
+        #####################
+        

src/data-hub/proactive-community-detection-microservice/app/routes/predictions.py

+from flask import request, Response
+from db.repository import Repository
+from db.dao import PredictionResult
+
+repo = Repository()
+
+def get(use_case, table, layer_name):
+    res = repo.get_prediction_results(use_case)
+    if res is None or len(res) == 0:
+        return Response(status=404)
+    else:
+        return [c.__dict__ for c in res]

src/data-hub/proactive-community-detection-microservice/app/run_dataprep.py

@@ -7,4 +7,6 @@ if os.path.exists(modules_path):
 
 from processing.data_prep.main import run
 
-run(use_case='community-prediction-youtube-n')
\ No newline at end of file
+if __name__ == '__main__':
+    '''Creates data/raw files'''
+    run(use_case='community-prediction-youtube-n')
\ No newline at end of file

src/data-hub/proactive-community-detection-microservice/app/run_layerpair_upload.py

@@ -68,6 +68,8 @@ def upload_layerpair(layerpair:LayerPairDao):
 
 
 if __name__ == '__main__':
+    '''Uploads the cross-context dependencies for all use-cases.'''
+    
     assert False, 'replace with true to upload now'
 
     for lp in get_youtube_dependencies():

src/data-hub/proactive-community-detection-microservice/app/run_node_fetching.py

@@ -11,4 +11,6 @@ urllib3.disable_warnings(urllib3.exceptions.InsecureRequestWarning)
 from processing.fetching import fetching
 
 if __name__ == "__main__":
+    '''Fetches all required data from business-logic and role-stage-discovery.'''
+    
     fetching.fetch(selected_use_cases=['community-prediction-youtube-n'], selected_use_case_tables=None)
\ No newline at end of file

src/data-hub/proactive-community-detection-microservice/app/run_prediction.py

+import sys
+import os
+modules_path = '../../../modules/'
+if os.path.exists(modules_path):
+    sys.path.insert(1, modules_path)
+
+
+from processing.ml.predict_single_context import run_prediction as run_single_prediction
+# from processing.ml.predict_cross_context import run_prediction as run_cross_prediction
+
+if __name__ == '__main__':
+    '''Executes the predictions.'''
+
+    use_case='community-prediction-youtube-n'
+    run_single_prediction(use_case)
+    # run_cross_prediction(use_case)
\ No newline at end of file

src/data-hub/proactive-community-detection-microservice/app/run_training.py

@@ -5,10 +5,11 @@ if os.path.exists(modules_path):
     sys.path.insert(1, modules_path)
 
 
-from processing.ml.train_single_context import run_single_training
-from processing.ml.train_cross_context import run_cross_training
+from processing.ml.train_single_context import run_training as run_single_training
+from processing.ml.train_cross_context import run_training as run_cross_training
 
 if __name__ == '__main__':
+    '''Executes the training.'''
 
     use_case='community-prediction-youtube-n'
     run_single_training(use_case)