Tag: 上海贵人传媒预约

Business Intelligence Analyst or Data Scientist? What’s the Difference?

Business Intelligence Analyst or Data Scientist? What’s the Difference?

first_imgI am a huge Thomas Davenport fan. His book “Competing on Analytics: The New Science of Winning” was the first book to make organizations aware of the business potential of analytics, even prior to the craziness brought on by Big Data. I happened upon a recent article of his titled “Looking Outward with Big Data: A Q&A with Tom Davenport” and one item from that article really jumped out at me:“Initially, I didn’t see much of a distinction [between business analytics and big data], and I thought that I could kind of rest on my laurels and not write a book about big data—because the fact is that the analytical tools and approaches used are not all that different for big data. But when I started talking to companies and data scientists, I realized that there really were some fairly substantial differences—some that have yet to be fully articulated and some that are already in evidence.”ShareUnderstanding the DifferencesThere are significant differences between a Business Intelligence (BI) analyst and a Data Scientist, but many folks are still confused. I recently received the following email from a follower (Felix) of my blog series that highlights some of the challenges that organizations are wrestling with on this difference in definitions.“Dear Mr. Schmarzo,I recently came across your January 9th blog post entitled “Business Analytics: Moving From Descriptive To Predictive Analytics.”“Our IT department disagrees on the capabilities of OLAP cubes. To me, a cube does not appear useful for parameterized models or most types of scenario analysis. (I am trained in statistics and other forms of financial modeling.) I showed Figure 1 of your blog to my colleagues, but was told that I do not understand OLAP technology.ShareFelix’s dilemma is typical of what I see in organizations that have spent considerable time and money building out their Business Intelligence capabilities. To me, the situation is similar to the construction worker discovering the “saw.” Doesn’t mean that the hammer is no longer important, but the saw and the hammer perform entirely different but complementary tasks.Here was my response to Felix:“Hey Felix, push back on your IT department. There is nothing predictive in OLAP cubes. Cubes are great for slicing and dicing historical data looking for areas of under- and over-performance in the past week/month/quarter, but they don’t answer any of the questions about the future such as: What will be sales for Product X next month? How many customers do we expect to respond XYZ promotion? What is the likelihood that wind turbine A101 will fail within the next 30 days?“Answering questions about the future requires developing predictive models and getting results that are qualified by probabilities and confidence levels. The key difference is that a BI Analyst uses OLAP cubes and other BI tools to report on what happened in the past, while a data scientist uses predictive and prescriptive tools to forecast what might happen in the future.ShareThere is a significant difference between what a traditional BI Analyst does and what a Data Scientist does. And one does NOT replace the other; they are complementary. Figure 1 does a nice job of summarizing the differences and how these two critical roles play off of each other.Figure 1: Differences Between BI Analyst and Data ScientistData Science is different than the traditional Business Analytics in some key areas. For example, data science…uses predictive and prescriptive analytics to predict what might happen using probabilities and confidence levels, not just report tools to report on what did happen.Note: when we’re dealing with historical data, there is a strong desire and need for the data to be 100% accurate. If you have your financial results wrong for the past quarter, folks are likely to go to jail. However predicting performance for the next quarter is usually measured in probabilities and confidence levels (e.g., “There is a 95% confidence that our revenues will come in next quarter between $200M to $212M). is used for dealing with and mitigating the uncertainty in the data. It uses several analytic and visualization techniques to understand where uncertainty may lay in the data, and then uses data transformation techniques to massage the data into a workable form – not perfect, but again not necessary when dealing with probabilities and not absolutes.is able to create as-needed data transformations (versus the traditional ETL process) to put the data into a format so that it can be combined with other data sources in search in insights about customers, products and operations.To quote our Jeffrey Abbott of EMC Global Services Marketing,“The disconnect is that with BI, people take the historical data and extend the trend lines and factor in cyclical factors. It’s slow, manual, and needs to be rebuilt each month/quarter/year. But with data science, we have the ability to automatically build the predictive apps that actively look for certain combinations of data and trigger a prediction of the future. It’s real time, re-usable, continuous, and automated.”ShareSummaryA recent blog “Data Science: The More Data, the Better”, talks about how Federal Reserve Chair Janet Yellen uses a dashboard of job data that doesn’t just rely upon a single measure (unemployment rate) to make economic and labor policy decisions. Instead, she uses a dozen different measures to provide a more holistic, more accurate, and hopefully more actionable view of the United States economic situation. She’s a data scientist at heart that realizes that a single measure of anything complex—whether it’s the U.S. economy or even things like customer satisfaction and predictive maintenance—is oversimplifying something to the point of not being useful or actionable.I have written several blogs trying to highlight the differences between a traditional business analyst and a data scientist, some of which I have listed below. Enjoy!Welcoming The Data Scientist Into The FamilyBill’s Most Excellent Data Scientist AdventureData Scientist Lesson:  Micro-to-Macro AnalyticsBest Practices for Analytic ProfilesThe Liberating What If Analytics CycleThinking Like a Data Scientistlast_img read more

Melanie Adkins Miller

Melanie Adkins Miller

first_imgMelanie Kay Miller passed away Monday, May 15, 2017 at her home in Osgood. She was born on January 21, 1964 to the late Shirley and Marcella Adkins in Batesville, Indiana. Melanie has three children that survive; her daughter Jessica L. (Jeremy) Owens of Osgood and two sons, Joshua Cullen of Bloomington, IN and Jared Cullen of Greensburg, IN. Four grandchildren also survive, Deacon Pate, Landon Owens, Logan Powell and Evelyn Cullen. One brother preceded her in death, Stephen Adkins. She had lived most of her life in the Osgood area graduating from Jac-Cen-Del in 1982. The most important thing in her life was her family! They jokingly stated that she really did not like cooking but really did enjoy cooking for them especially her shepherd pie! She will be sadly missed by her friends and family. There will be no services. www.nealsfuneralhome.netlast_img read more

Gor ready to cash-in on on-demand Kahata

Gor ready to cash-in on on-demand Kahata

first_img“It will be hard for us to reply to a letter written to an individual player. Kahata came to me and told me he had received the offer and we want to do this the right way,” Rachier said on Monday afternoon.YOU CAN ALSO READ: Kahata will cause Everton problems – YakubuHe further told Capital Sport; “We have no problem letting him go because it would not be human of us to come between a player and greener pastures. If they will write to us, we will listen to them and if we agree, then Kahata will go.”Gor Mahia midfielder Francis Kahata leaves Homeboyz’s Moses Mudavadi sprawling on the ground in a Kenyan Premier League match at the Moi Stadium in Kisumu on August 13, 2018.Kahata enjoyed a brilliant season with Gor both domestically and in the CAF Champions League and Confederations Cup, and his form has attracted interest from a lot of clubs.Constantine who won the 2017/2018 Algerian League as well as the season opening Super Cup watched him in Gor’s Confederations Cup group stage tie against USM Alger and were attracted to him.They wrote a letter dated November 18 asking him to travel to their base in Algeria for contract negotiations. Kahata in turn went to the club chair Rachier to ask for permission before holding any talks with the North Africans.Had Kahata not expressly talk to Rachier, then Gor would have found themselves in a similar situation they did with Kaizer Chiefs two months ago with the South African club having invited the Ugandan over and negotiated a contract.“I am really pleased with Kahata’s openness and his professionalism because he would have just chosen to go and talk over the contract without us knowing. How can you deny such a player a chance to go and prosper when he is that honest?” Rachier posed.Gor Mahia’s Francis Kahata tries to close down Hull City’s Robbie Mackenzie during an international friendly match at the Kasarani Stadium on May 13, 2018. PHOTO/Raymond MakhayaMeanwhile, the chair has disclosed the club has already received part of the payment owed to them by Kaizer Chiefs for the sale of Walusimbi.A Kahata departure will deal Gor a blow especially with the transfer window nearing closure and little time to get an equal replacement.But for the midfielder, it will be a huge opportunity to improve his career in a competitive and demanding league.Constantine won the Algerian top tier league for the first time in close to two decades in the just concluded season and are firming up for their Champions League campaign with Kahata a key component of their required matrix.The club has however struggled this season and are currently placed 11th in the standings having won only four of their 15 matches this season and are 14 points behind leaders USM Alger.0Shares0000(Visited 4 times, 1 visits today) 0Shares0000Gor Mahia FC attacking midfielder Francis Kahata during a training session at Everton FC’s Finch Farm ground on November 4, 2018. PHOTO/Timothy OlobuluNAIROBI, Kenya, Nov 26 – Kenyan Premier League champions Gor Mahia are ready to cash in on on-demand star midfielder Francis Kahata with Algerian champions CS Constantine having enquired of his services with only seven months remaining in his contract.Gor Mahia chairman Ambrose Rachier has disclosed that Kahata has received an official invitation from the Algerian club which was addressed to Kahata and they have asked the midfielder to tell the club to officially write to the club.last_img read more