added dataset splitting script

scripts/database.py

@@ -0,0 +1,116 @@
+#!/usr/bin/env python
+import numpy as np
+import csv
+import os
+
+PROTOCOLS = {
+    'proto1': {'train': (0, 0.6), 'validation': (0.6, 0.8), 'test': (0.8, 1)},
+    'proto2': {'train': (0.4, 1), 'validation': (0, 0.2), 'test': (0.2, 0.4)},
+}
+
+SUBSETS = [
+    'train',
+    'validation',
+    'test'
+]
+
+CLASSES = [
+    'Other_Activity',
+    'Watch_TV',
+    'Sleep_Out_Of_Bed',
+    'Bathe',
+    'Cook_Breakfast',
+    'Dress',
+    'Toilet',
+    'Personal_Hygiene',
+    'Sleep',
+    'Read',
+    'Relax',
+    'Cook_Dinner',
+    'Drink',
+    'Eat_Breakfast',
+    'Morning_Meds',
+    'Evening_Meds',
+    'Wash_Breakfast_Dishes',
+    'Cook_Lunch',
+    'Wash_Dishes',
+    'Leave_Home',
+    'Cook',
+    'Enter_Home',
+    'Entertain_Guests',
+    'Wash_Dinner_Dishes',
+    'Phone',
+    'Groom',
+    'Step_Out',
+    'Eat_Dinner',
+    'Eat_Lunch',
+    'Wash_Lunch_Dishes',
+    'Bed_Toilet_Transition',
+    'Eat',
+    'Go_To_Sleep',
+    'Wake_Up',
+    'Work_At_Table'
+]
+
+VARIABLES = [
+    'lastSensorEventHours',
+    'lastSensorEventSeconds',
+    'lastSensorDayOfWeek',
+    'windowDuration',
+    'timeSinceLastSensorEvent',
+    'prevDominantSensor1',
+    'prevDominantSensor2',
+    'lastSensorID',
+    'lastSensorLocation',
+    'lastMotionLocation',
+    'complexity',
+    'activityChange',
+    'areaTransitions',
+    'numDistinctSensors',
+    'sensorCount-Bathroom',
+    'sensorCount-Bedroom',
+    'sensorCount-Chair',
+    'sensorCount-DiningRoom',
+    'sensorCount-Hall',
+    'sensorCount-Ignore',
+    'sensorCount-Kitchen',
+    'sensorCount-LivingRoom',
+    'sensorCount-Office',
+    'sensorCount-OutsideDoor',
+    'sensorCount-WorkArea',
+    'sensorElTime-Bathroom',
+    'sensorElTime-Bedroom',
+    'sensorElTime-Chair',
+    'sensorElTime-DiningRoom',
+    'sensorElTime-Hall',
+    'sensorElTime-Ignore',
+    'sensorElTime-Kitchen',
+    'sensorElTime-LivingRoom',
+    'sensorElTime-Office',
+    'sensorElTime-OutsideDoor',
+    'sensorElTime-WorkArea'
+]
+
+
+def load(setname='csh101'):
+    data = dict([(k, []) for k in CLASSES])
+    with open(os.path.join('../data', setname, '{}.ann.features.csv'.format(setname)), 'rt') as f:
+        reader = csv.reader(f, delimiter=',')
+        for k, row in enumerate(reader):
+            if not k: continue
+            data[row[-1]].append(np.array([z for z in row[:-1]]))
+    for k in CLASSES:
+        data[k] = np.vstack(data[k])
+    return data
+
+
+def split_data(data, subset, splits):
+    return dict([(k, data[k][range(int(splits[subset][0] * data[k].shape[0]),
+                                   int(splits[subset][1] * data[k].shape[0]))]) for k in data])
+
+
+def get(protocol, subset, classes=CLASSES, variables=VARIABLES, setname='csh101'):
+    retval = split_data(load(setname), subset, PROTOCOLS[protocol])
+    varindex = [VARIABLES.index(k) for k in variables]
+    retval = dict([(k, retval[k][:, varindex]) for k in classes])
+    return np.array([retval[k] for k in classes])