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  • Hi everyone!

  • This is a quick crash course video where well talk about business, data science, and how

  • the two go hand-in-hand.

  • Welcome!

  • So

  • "Business basics for data scientists?

  • What do I need that for?"

  • Let me explain.

  • Imagine the following: Youre a data scientist.

  • You thrive on maths and statistics, youre confident in using SQL and Python, and have

  • some experience in data cleaning and visualization.

  • Plus, youre no stranger to machine and deep learning, which, in your opinion, makes

  • you the perfect candidate for any high-paying data scientist job.

  • Maybe youre a seasoned data scientist trying to break new ground.

  • Or youre a novice who just completed an online certificate course to land an internship

  • at a prestigious data science consultancy.

  • Either way, you go to the interview, feeling like a winner.

  • You boast about all of your skills, explaining how you know 19 programming languages and

  • want to use them all and how you can apply the latest MFCC algorithm, with the enthusiasm

  • of a girl scout determined to sell all her boxes of Samoas cookies right then and there.

  • Judging by the impressed look on the interviewer’s face - you got the job!

  • But, in reality, here’s what the employer is thinking: “Awesome, but I don’t have

  • a job for another run-of -the mill data scientist.

  • I need somebody who understands that data is business, who knows how to solve complex

  • data problems, and share their insights with the management.”

  • And that’s exactly why you should watch this video.

  • Were giving you 5 key business basics that will show you how to work with data to reach

  • practical business solutions.

  • Because today, dealing well with data is table stakes for any company to stay in the game.

  • It means innovation, productivity growth, and richer customer insight.

  • And helping a company ensure these will make you successful as a data scientist.

  • So, here they are!

  • Starting with Number 1: Understanding business objectives.

  • Data scientists must understand the strategic goals of the company and use them as guidance

  • for the whole data collection and interpretation process.

  • This guarantees that the analytics you provide will ensure the competitive edge of your company.

  • Nota bene - always keep in mind your audience.

  • Is the data information for internal use by the board of directors or the sales managers?

  • Or is it for external use by capital markets or suppliers?

  • Each audience has different needs, even if the overall strategic objective is the same.

  • Once youve identified your audience, make sure you provide the answers to their performance-related

  • problems.

  • Ok.

  • But how do I do that?

  • Well, make yourself familiar with the concepts of Key Performance Questions (KPQs) and Key

  • Analytics Questions (KAQs).

  • Both allow you to contextualize performance data and derive actionable knowledge form

  • it.

  • KPQs revolve around how well your company is performing in achieving certain goals.

  • For example: “How well are we promoting our services?”.

  • OrTo what extent are we attracting new profitable customers?”.

  • KAQs, on the other hand, aim to narrow down the strategic choices for achieving a goal.

  • For instance, “How do customers click through our website?” orWho are going to be

  • our most profitable customers?”

  • What about business intelligence tools and other IT systems?” the nay-sayers might

  • ask.

  • Unfortunately, in most companies, BI tools are driven more by the information on hand,

  • than by the information that will actually lead to the best business decisions.

  • This could put any company at a major disadvantage.

  • That’s why it’s important to discover what knowledge the recipient needs first and

  • use the tools accordingly, as opposed to applying the tools and then deciding on the information

  • needs they could possibly fulfill.

  • Alright!

  • Moving on to Number 2: Collecting the right data.

  • A senior data scientist must ensure the team under their lead collects and organizes relevant

  • and useful data.

  • So, it’s crucial to know if the necessary data is already stored in the organization

  • and in what formatsnumerical or non-numerical, such as images, text, or sound.

  • That will help you establish the company’s methodologies for collecting additional data

  • - quantitative for numerical data or qualitative for non-numerical data.

  • Quantitative data is collected automatically from operations, or via surveys and questionnaires.

  • It’s easy to analyze and represent visually.

  • However, to provide more richness and context, a company can’t do without qualitative data.

  • Its analysis uncovers the factors influencing certain behavior, like customer satisfaction

  • or customer churn.

  • Qualitative surveys, focus groups, and peer-to-peer evaluation are some of the methods for collecting

  • qualitative data.

  • Other ways include analysis of click-through rate and engagement in social media

  • So, you have the data.

  • Now it’s time to interpret and contextualize it to extract valuable information.

  • Number 3: Analyzing the data.

  • Meaningful analysis is crucial for effective decision-making.

  • As we already mentioned, BI tools are not sufficient for a great analysis per se.

  • Still, they can play an important role in various types of other analyses.

  • For example, Online Analytical processing, a.k.a. OLAP, which provides numerous dimensions

  • to look at data.

  • Or data mining which correlates various factors.

  • And, of course, text mining, used to extract, analyze, and summarize information from large

  • text datasets.

  • BI software also provides data scientists with interactive drill-down and rich graphic

  • capabilities, and the ability to perform root-cause analysis.

  • What if you need to view data from different perspectives?

  • Then multidimensional technology comes into play.

  • Using data models, it helps to make decisions based on consolidated summarized business

  • information from various sources.

  • Basically, we can say that all is fair in love, war, and data analysis.

  • So, don't shy away from taking advantage all tools available, as long as you use them smart

  • to reach relevant and actionable insights.

  • Number 4: Communicating the data effectively.

  • To prepare a clear and compelling presentation of your insights, you need to use different

  • types of charts and graphs, such as tally charts, histograms, scatter plots, etc.

  • However, for truly informative and engaging data storytelling, use graphs and narrative

  • together.

  • This will help your audience see the big picture and derive business value from the collected

  • data.

  • How to make sure that the valuable insights won’t be overlooked?

  • Bernard Marr, a renowned strategic performance consultant”, suggests 4-steps to powerful

  • and strategically relevant reports: • Frame the report with KAQs and KPQs;

  • Support the KAQs and KPQs with suitable and informative graphs and charts;

  • Use headings to capture the key insights; • and narratives to provide context for

  • the visuals.

  • If you opt for a dashboard representation, be mindful of some common design mistakes,

  • such as supplying inadequate context for the data, cluttering the display with useless

  • decorations, or arranging the data poorly.

  • You believe a data scientist’s job ends with packaging the information and presenting

  • it to stakeholders?

  • Think again.

  • Truth is, if youre serious about your career, you should be aware of Number 5.

  • Understanding how evidence-based decisions are made.

  • The best data scientists make sure that their insights will become the basis for actionable

  • steps.

  • As a data scientist, you can have a strong impact on the company’s desire to learn

  • and improve.

  • And, sometimes, it will be up to you to inspire accommodation of analytical capabilities throughout

  • the organization.

  • Or initiate implementing an appropriate IT infrastructure.

  • So, embrace your data science power and use it for good!

  • That wraps up our list of 5 business basics that will help you on your data science career

  • path.

  • You can use them as a stepping stone to build up on your business know-how or expand your

  • knowledge with some relevant books.

  • Or take an online business course to improve your skill set and make your resume stand

  • out.

  • Well, if you happen to be watching this video while waiting to be called in your next interview,

  • don’t despair.

  • You still have a few minutes to repeat the basics 5 times as a data science mantra, take

  • a deep breath, exhale, and enter with the unshakeable confidence of a master data scientist

  • who truly knows their stuff.

  • Good luck!

Hi everyone!

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B1 中級

2020年僱主希望數據科學傢俱備的5項業務技能 (5 Business Skills Employers Want in a Data Scientist in 2020)

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    林宜悉 發佈於 2021 年 01 月 14 日
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