{"id":4912,"date":"2015-07-30T15:04:43","date_gmt":"2015-07-30T09:34:43","guid":{"rendered":"http:\/\/www.officechai.com\/?p=4912"},"modified":"2016-06-21T15:00:29","modified_gmt":"2016-06-21T09:30:29","slug":"data-science-overview","status":"publish","type":"post","link":"https:\/\/officechai.com\/learn\/data-science-overview\/","title":{"rendered":"Data Scientist: The Sexiest Job of 21st Century"},"content":{"rendered":"<p><span style=\"font-size: 12pt; color: #000000;\">An increasing number of companies, both large and small, are now using enormous\u00a0amount of data for analysis to gain information to better support their company and\u00a0serve their customers. The scale and magnitude of data confronting companies is\u00a0difficult to imagine.\u00a0Take this. A study has estimated that by 2024, the world&#8217;s\u00a0enterprise servers will annually process the digital equivalent of a stack of books\u00a0extending more than 4.37 light-years to Alpha Centauri, our closest star system in\u00a0the Milky Way Galaxy. That&#8217;s a lot of data to gather and\u00a0analyze!<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\">Business or data analysts have been around for a while. However, during the last\u00a0decade, data scientists have had the spotlight turned on them. In an article in the October 2012\u00a0issue of Harvard Business Review, the data scientist\u2019s job was termed as the sexiest\u00a0job of the 21st century!\u00a0<\/span><\/p>\n<figure id=\"attachment_4915\" aria-describedby=\"caption-attachment-4915\" style=\"width: 700px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-4915 size-full\" src=\"https:\/\/i0.wp.com\/www.officechai.com\/wp-content\/uploads\/2015\/07\/Data-science.jpg?resize=640%2C364\" alt=\"Data-science\" width=\"640\" height=\"364\" srcset=\"https:\/\/i0.wp.com\/officechai.com\/wp-content\/uploads\/2015\/07\/Data-science.jpg?w=700&amp;ssl=1 700w, https:\/\/i0.wp.com\/officechai.com\/wp-content\/uploads\/2015\/07\/Data-science.jpg?resize=300%2C171&amp;ssl=1 300w, https:\/\/i0.wp.com\/officechai.com\/wp-content\/uploads\/2015\/07\/Data-science.jpg?resize=500%2C284&amp;ssl=1 500w, https:\/\/i0.wp.com\/officechai.com\/wp-content\/uploads\/2015\/07\/Data-science.jpg?resize=600%2C341&amp;ssl=1 600w, https:\/\/i0.wp.com\/officechai.com\/wp-content\/uploads\/2015\/07\/Data-science.jpg?resize=148%2C85&amp;ssl=1 148w, https:\/\/i0.wp.com\/officechai.com\/wp-content\/uploads\/2015\/07\/Data-science.jpg?resize=71%2C40&amp;ssl=1 71w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><figcaption id=\"caption-attachment-4915\" class=\"wp-caption-text\">Source: rudebaguette.com<\/figcaption><\/figure>\n<p>&nbsp;<\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\">First, what does a data scientist do?<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\">A data scientist represents an evolution from the business or data analyst role. The\u00a0formal training is similar, with courses in computer science and applications,\u00a0modelling, statistics, analytics and math. However, it is to be supplemented with a\u00a0strong business acumen and ability to communicate findings to business leaders in a\u00a0way that can influence how an organization approaches a business challenge. It is\u00a0said that good data scientists do not just address problems; they pick the problems\u00a0that have most value to the organization.<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\">While a data analyst may look only at data from a single source, a data scientist will\u00a0explore and examine data from multiple disparate sources. The data scientist will sift\u00a0through all incoming data with the goal of discovering a previously hidden insight,\u00a0which in turn can provide a competitive advantage or address a pressing business\u00a0problem. A data scientist does not simply collect and report on data, but also looks at\u00a0it from many angles, determines what it means, then recommends ways to apply the\u00a0data.<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\">Data scientists are inquisitive: exploring, asking questions, doing \u201cwhat if\u201d analyses, and\u00a0questioning existing assumptions and processes. Armed with data and analytical\u00a0results, a top-tier data scientist will then communicate informed conclusions and\u00a0recommendations across an organization\u2019s leadership structure.<\/span><\/p>\n<p><span style=\"color: #000000; font-size: 12pt;\">Here&#8217;s a great video of a data scientist talking about his work<\/span><\/p>\n<p><iframe title=\"Gigs: A day in the life of a data scientist\" width=\"640\" height=\"360\" data-src=\"https:\/\/www.youtube.com\/embed\/EaptTxhh6sM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\">A data scientist requires mastery of a number of fields. Core competencies include:<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\"><strong>Basic tools<\/strong>: \u00a0A statistical programming language, like R or Python, and a database\u00a0querying language like SQL.<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\"><strong>Basic statistics<\/strong>:\u00a0Familiarity with <span style=\"color: #33cccc;\"><a style=\"color: #33cccc;\" href=\"http:\/\/www.camo.com\/\" target=\"_blank\">statistical tests<\/a><\/span>, distributions, maximum likelihood\u00a0estimators, etc.<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\"><strong>Machine learning<\/strong>:\u00a0 Familiarity with machine learning methods like k-nearest\u00a0neighbours, random forests, ensemble methods.<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\"><strong>Multivariable calculus<\/strong>:\u00a0Grip on basic multivariable calculus or linear algebra\u00a0questions.<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\"><strong>Data munging<\/strong>:\u00a0Knowing how to deal with imperfections in data, especially for small\u00a0companies or early hires.<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\"><strong>Data visualization and communication<\/strong>:\u00a0Familiarity with data visualization tools like\u00a0ggplot and d3 and communication techniques for both technical and non-technical\u00a0audiences.<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\"><strong>Software engineering<\/strong>:\u00a0Strong software engineering background would be\u00a0necessary.<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\">Data science is still nascent and ill-defined as a field. Getting a job is as much about\u00a0finding a company whose needs match your skills as it is developing those skills.\u00a0Data scientists today are akin to Wall Street \u201cquants\u201d of the 1980s and 1990s. In\u00a0those days people with backgrounds in physics and math were favourites of\u00a0investment banks and hedge funds.<\/span><\/p>\n<p><span style=\"font-size: 12pt; color: #000000;\">In India, an average data scientist earns a starting salary of over Rs 600,000 per\u00a0year. Experience strongly influences income for this job.<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Business or data analysts have been around for a while. However, during the last decade, data scientists have had the spotlight turned on them. In an article in the October 2012 issue of Harvard Business Review, the data scientist\u2019s job was termed as the sexiest job of the 21st century! <\/p>\n","protected":false},"author":9,"featured_media":4915,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[10],"tags":[375],"class_list":["post-4912","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-learn","tag-data-science"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Data Scientist: The Sexiest Job of 21st Century<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/officechai.com\/learn\/data-science-overview\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Data Scientist: The Sexiest Job of 21st Century\" \/>\n<meta property=\"og:description\" content=\"Business or data analysts have been around for a while. 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