معرفی کتاب «دستور العمل تمیزکردن داده ها» به انگلیسی «Python Data Cleaning Cookbook»
داده مهمترین دارایی ما در دنیای اطلاعات است و دریافت داده و پاکسازی آن اولین قدم در مدلسازی و ارائه تحلیل است. در این کتاب کلیه فرآیندهای تبدیل داده های کثیف به داده های قابل استفاده در مدلسازی را به زبان پایتون توضیح داده می شود. دانستن موضوعات این کتاب برای همه علاقه مندان علم داده و نیز مدلسازی مالی ضروری است.
معرفی کتاب «دستور العمل تمیزکردن داده ها» به انگلیسی «Python Data Cleaning Cookbook»
داده مهمترین دارایی ما در دنیای اطلاعات است و دریافت داده و پاکسازی آن اولین قدم در مدلسازی و ارائه تحلیل است. در این کتاب کلیه فرآیندهای تبدیل داده های کثیف به داده های قابل استفاده در مدلسازی را به زبان پایتون توضیح داده می شود. دانستن موضوعات این کتاب برای همه علاقه مندان علم داده و نیز مدلسازی مالی ضروری است.
Bitcoin is built on a distributed digital record called a blockchain. As the name implies, blockchain is a linked body of data, made up of units called blocks that contain information about each and every transaction, including date and time, total value, buyer and seller, and a unique identifying code for each exchange. Entries are strung together in chronological order, creating a digital chain of blocks. “Once a block is added to the blockchain, it becomes accessible to anyone who wishes to view it, acting as a public ledger of cryptocurrency transactions,” says Stacey Harris, consultant for Pelicoin, a network of cryptocurrency ATMs. Blockchain is decentralized, which means it’s not controlled by any one organization. “It’s like a Google Doc that anyone can work on,” says Buchi Okoro, CEO and co-founder of African cryptocurrency exchange Quidax. “Nobody owns it, but anyone who has a link can contribute to it. And as different people update it, your copy also gets updated.”
At a time when the Indian stock market is peaking and has rallied immensely compared to global markets, there are companies that have not performed in the last 10 years. These are definitely a minor portion of the market considering there are hundreds of stocks that have turned multibagger since 2020. What went wrong with these stocks? Reasons vary from corporate governance, sectoral weakness, company specific and so on. But the more important question is, are these stocks worth buying?
