Tags » "big Data"

Chain Operations: An Interesting Feature in dplyr Package


library(data.table)
library(dplyr)

data1 <- fread('/home/liuwensui/Downloads/2008.csv', header = T, sep = ',')
dim(data1)
# [1] 7009728      29

data2 <- data1 %.%
           filter(Year = 2008, Month %in% c(1, 2, 3, 4, 5, 6)) %.%
           select(Year, Month, AirTime) %.%
           group_by(Year, Month) %.%
           summarize(avg_time = mean(AirTime, na.rm = TRUE)) %.%
           arrange(desc(avg_time))

print(data2)
#   Year Month avg_time
# 1 2008     3 106.1939
# 2 2008     2 105.3185
# 3 2008     6 104.7604
# 4 2008     1 104.6181
# 5 2008     5 104.3720
# 6 2008     4 104.2694
S+/R

10 thuật toán làm thay đổi thế giới

Tầm quan trọng của các thuật toán trong cuộc sống hiện đại không hề bị cường điệu hóa. Các thuật toán được sử dụng hầu như ở khắp mọi nơi, từ các tổ chức tài chính cho tới những trang hẹn hò trực tuyến. 3,971 more words

Big Data Technology Series – Part 5

In the last three installments of the big data technology series, we looked at the historical evolution and key developments in databases, BI/DW platforms and statistical computing software.   908 more words

Big Data Technologies

Apple has just invested about $ 10M in acquiring BookLamps, which uses BIG DATA technology to analyze reading habits and suggest titles. This move indicates Apple’s strategy to strengthen its presence in the book market. 59 more words

BIG DATA

The Internet of Things Means Business

I  came across a very interesting story about business’ internal Internet of Things or Internet of Business Things (IoBT). The term, as the writer Chris Curran, Chief Technologist, PwC US Advisory, puts it references the tools and processes businesses use to achieve efficiency within in their business – think about data derived by supply chain management systems and then multiply it by 1,000 and you’re getting close to the potential data than can be analyzed by internal business processes alone. 8 more words

ヤフー、クラウド型DMS提供のトレジャーデータと業務提携 [ #cbajp ]

ヤフーとトレジャーデータは7月25日、法人向けビッグデータビジネス領域で業務提携すると発表した。この業務提携は、ヤフーが昨年より展開しているビッグデータ活用を核としたマーケティングソリューション事業の取り組みのひとつ。トレジャーデータの技術を採用するにいたった理由として、データマネージメントにおける高い実績を挙げている。

http://news.mynavi.jp/news/2014/07/28/084/

Business