Example #1
0
import networkx as nx
import matplotlib
import pandas as pd
from networkx import *
import graphlab as gl
import pandas as pd
import pymonetdb
from subprocess import call
import subprocess
import time

import util

log = util.setup_log('mdb_wcc')


class MDB_WCC:
    def __init__(self, node_f, edge_f, db, node_tbl, edge_tbl):
        self.edge_f = edge_f
        self.node_f = node_f
        self.db = db
        self.edge_tbl = edge_tbl
        self.node_tbl = node_tbl
        self.steps = -1
        self.metrics = None

        try:
            self.connection = pymonetdb.connect(username="******",
                                                password="******",
                                                hostname="localhost",
                                                database=db,
Example #2
0
def train():
    logger = util.setup_log("ZERO")
    train_set, valid_set = load_data(params)
    params["input_size"] = train_set["data"].shape[1]
    logger.info("Shape of data: %s.", train_set["data"].shape)

    train_bm = BatchManager(train_set, 1, params)
    valid_bm = BatchManager(valid_set, 1, params)

    model = Model(params, logger)
    merge_summary = tf.summary.merge_all()

    def mean_absolute_percentage_error(y_true, y_pred):
        y_true, y_pred = np.array(y_true), np.array(y_pred)
        return np.mean(np.abs((y_true - y_pred) / y_true)) * 100

    def metrics(targets, preds, key="train"):
        # if key == "val":
        #     print('mae:', mean_absolute_error(targets, preds))
        #     print('mape:', mean_absolute_percentage_error(targets, preds))
        #     print('rmse:', math.sqrt(mean_squared_error(targets, preds)))
        return mean_squared_error(targets, preds), ""

    def get_time_dif(start_time):
        end_time = time.time()
        time_dif = end_time - start_time
        return timedelta(seconds=int(round(time_dif)))

    summary_path = os.path.join(params["train_summary_path"], expname)
    _ = os.system("rm -rf %s" % summary_path)
    model_path = os.path.join(params["model_path"], expname)
    _ = os.system("rm -rf %s" % model_path)
    eval_summary_path = os.path.join(params["eval_summary_path"], expname)
    _ = os.system("rm -rf %s" % eval_summary_path)
    _ = os.system("mkdir -p %s" % eval_summary_path)

    train_writer = tf.summary.FileWriter(summary_path, tf.get_default_graph())

    config = tf.ConfigProto()
    config.gpu_options.allow_growth = True

    with tf.Session(config=config) as sess:
        sess.run(tf.global_variables_initializer())
        steps_per_run = params["steps_per_run"]
        global_step = 0
        best_mse = sys.maxsize
        start_time = time.time()
        valid_step = 0
        for epoch in range(params["train_epoch"]):
            train_bm.init()
            while True:
                global_step, loss, n_steps, (mse, _) = model.train(sess, train_bm, steps_per_run, metrics, merge_summary=merge_summary,
                                                                   train_writer=train_writer)
                logger.info("TRAIN %d steps[%d]: loss %.4f  mse %.4f" % (global_step, epoch, loss, mse))
                if train_bm.is_finished:
                    break

                valid_step += 1
                if valid_step % 10 == 0:
                    valid_bm.init()
                    loss, (mse, _) = model.eval(sess, valid_bm, metrics)
                    if mse < best_mse:
                        best_mse = mse
                        model.save(sess, save_path=model_path)
                        best_flag = '*'
                    else:
                        best_flag = ''

                    time_dif = get_time_dif(start_time)
                    logger.info("EVALUATION: %d steps: loss %.4f  mse %.4f  cost_time %s  %s" % (global_step, loss, mse, str(time_dif), best_flag))
Example #3
0
import networkx as nx
import matplotlib
import pandas as pd
from networkx import *
import graphlab as gl
import pandas as pd
import pymonetdb

import mdb_bfs
import mdb_wcc
import util

log = util.setup_log('mdb_test')


def test_mdb_bfs():
    node_f = 'nodes.csv'
    edge_f = 'edges.csv'

    # test with one connected graph with equal distances
    g = util.create_star(10)
    util.save_graph(g, node_f, edge_f)
    util.load_mdb_graph(node_f, edge_f)

    bfs = mdb_bfs.MDB_BFS(node_f,
                          edge_f,
                          db='graph_data',
                          node_tbl='node',
                          edge_tbl='edge',
                          src_node=0)
    bfs.compute_bfs()
Example #4
0
import torch
from torch import nn
from torch.autograd import Variable
from torch import optim
import torch.nn.functional as F
from torchviz import make_dot, make_dot_from_trace
import torch.utils.data as Data

import datetime as dt, itertools, pandas as pd, matplotlib.pyplot as plt, numpy as np
import util

import glob

import os
#os.environ["CUDA_VISIBLE_DEVICES"] = "0,1"
util.setup_log()
use_cuda = torch.cuda.is_available()

# In[2]:

#DATA
X_raw = np.zeros((86400, 11))
dat1 = pd.read_csv('/home/liuchen/wind_data/K111+340_2017-09-30.txt',
                   header=None)
dat2 = pd.read_csv('/home/liuchen/wind_data/K117+378_2017-09-30.txt',
                   header=None)
dat3 = pd.read_csv('/home/liuchen/wind_data/K127+995_2017-09-30.txt',
                   header=None)
dat4 = pd.read_csv('/home/liuchen/wind_data/K135+913_2017-09-30.txt',
                   header=None)
dat5 = pd.read_csv('/home/liuchen/wind_data/K145+688_2017-09-30.txt',
Example #5
0
import networkx as nx
import matplotlib
import pandas as pd
from networkx import *
import graphlab as gl
import pandas as pd
import pymonetdb
import util

log = util.setup_log('mdb_bfs')


class MDB_BFS:
    def __init__(self, node_f, edge_f, db, node_tbl, edge_tbl, src_node=0):
        self.edge_f = edge_f
        self.node_f = node_f
        self.db = db
        self.edge_tbl = edge_tbl
        self.node_tbl = node_tbl
        self.steps = -1
        self.metrics = None
        self.n_updates = []

        try:
            self.connection = pymonetdb.connect(username="******",
                                                password="******",
                                                hostname="localhost",
                                                database=db,
                                                autocommit=True)

        except Exception as e: