Posted gourang, sanjeevbiswas05, sunny, rhishikesh, sreekar, metodinikolov, va1io, tomislavk Mentors: drsubhabahapal2 CommentsPosted in Datathons SolutionsDatathons Solutions

Datathon Telenor Solution – WRANGLING WITH DATA DROPS

This article proposes very tractable approach to modelling changes in regime .The parameters of Time & Date are viewed in the outcome for this analysis.
In the 21st century cell phones are the most commonly used and important wireless technology. Cell phones are so common that it can be seen in everyone’s hand doesn’t matter what age group that individual belongs to, whether that individual is old, young or teenager belonging to any terrain .India has a population of 1.32 billion and comprises of nearly 340 million cell phones. It is used for communication ,messaging , downloading and uploading data on the internet.
There are times when an user counter issues in communications like termination of call,data drop in between of communication, wrong connections, etc. which may have an impact on the overall experience of the network subscribers. The telecom service providers have to implement certain data management technology to improve their infrastructure to minimize the effect of call drop and data drop to provide quality services to their customers.
Nearly all signals contain energy at harmonic frequencies, in addition to the energy at the fundamental frequency. If all the energy in a signal is contained at the fundamental frequency, then that signal is a perfect sine wave. The telecommunication signals also contains many harmonics which are affected a lot because of semiconductor interfacing , physical or digital barriers.
Keywords- Data drop,Call drop

Posted denitsay1 CommentPosted in LearnLearn

An Introduction to Machine Learning Theory and Its Applications: A Visual Tutorial with Examples

What actually does Machine Learning mean and what types of problems does it solve? This Machine Learning tutorial introduces the basics of ML theory, laying down the common themes and concepts. The practical examples substituted with the mathematical functions of univariate linear regression, linear least squares and others make it easy to follow the logic and get comfortable with machine learning basics.

Posted shivee1094, ankitprakash89, shivee1094, suhailak, anshuljain Mentors: drsubhabahapal3 CommentsPosted in Datathons Solutions, Learn, Team solutionsDatathons Solutions, Learn, Team solutions

By KrYpToNiAnS

List of required packages

“`{r}
library(data.table) #for fread function
library(dplyr) #for pipeline function
library(plyr) #for join function
library(tseries) #for ts function
library(forecast) #for forecast function
library(caret) #for neuralnetwork prediction
library(ggplot2) #for plots
library(mice) #for imputating NA/missing values
library(zoo) #for imputing

“`

###Working with Dataset[price_data.csv]

“`{r}

url <- "matrix_one_file/price_data.csv"

crypto <- fread(url, header = TRUE)

crypto_main <- crypto[,c(1:17,20,25,34,37)]
View(crypto_main)
crypto_loop <- crypto_main[,2:21]
name <- names(crypto_loop)

#Automation for Prediction
for( i in name){

crypto_work % select(time,i)
names(crypto_work) <- c("Time", "Price")
crypto_work$Time <- as.POSIXct(crypto_work$Time, format = "%Y-%m-%d %H:%M:%S")
d<- colnames(crypto_work)[2]

# to get the data for time series
crypto_work1 % filter(Time = “2018-01-18 00:00:00”)
Time <- seq(ISOdatetime(2018,1,18,00,0,0), ISOdatetime(2018, 1, 24,11,55,0), by= (60*5))
df <- data.frame(Time)
crypto_temp <- join(df, crypto_work1, by = "Time")
crypto_temp$Price <- na.approx(crypto_temp$Price)

#to get the original value from 25th Jan to 29th Jan
crypto_orignal_value % filter(Time = “2018-01-25 00:00:00”)
Time <- seq(ISOdatetime(2018,1,25,00,0,0), ISOdatetime(2018, 1, 29,11,55,0), by= (60*5))
df1 <- data.frame(Time)
crypto_temp1 <- join(df1, crypto_orignal_value ,by = "Time")
crypto_temp1$Price <- na.approx(crypto_temp1$Price)

#initializing variables
df_new <- data.frame()
new_df <- data.frame()
value <- c()
start <- 1

for(j in 1:5){

for(k in 1:288){

crypto_price <- ts(crypto_temp$Price, start = c(1,1), frequency = 288)
fit1 <- nnetar(crypto_price)
a <- forecast(fit1, h=1)
value <- append(value,a$mean)
df_new<- data.frame(crypto_temp1$Time[start], a$mean)
names(df_new) <- c("Time","Price")
crypto_temp <- rbind(crypto_temp, df_new)
start <- start+1

}
output_file <- crypto_temp[(1873+(start-k)):nrow(crypto_temp),]
rownames(output_file) <- c()
name <- paste(i,d,"(",j,")",".csv",sep = "")
write.csv(output_file,name)

}

}

“`

Posted sushmitha-kk2 CommentsPosted in Datathons Solutions, Learn, Team solutionsDatathons Solutions, Learn, Team solutions

Prediction Model for Crypto Currency in R

Bitcoins are cryptocurrency systems, that enable its users to exchange payments without passing through a central authority (Eg. Reserve Bank of India, Federal Bank etc). They were developed in 2008, using the Blockchain Technology. In the present article, methods to create prediction models have been implemented. The model considers a sample data of 3 months spaced over 5 minutes for each day. The Training data and Testing data are developed on that dataset for twenty bitcoins; viz: Bitcoin, Bitcoin Cash, Bitcoin Gold, Cardeno, Dash, Dogecoin, Eos, Ethereum, Ethereum Class, Iota, Lisk, Litrcoin, Monero, NEMcoin, Neo, Ripple, Stellar, Tether, Tron, Zcash.
The prediction models used are ARIMA, Exponential Smoothing and Neural Networks on R. The models calculate the values for the next time instant, i.e. next five minutes and the code developed goes on continuing it (predicting next 5-minute price) for all 288 time-points in a day.