[Info-vax] Should VSI create a modern day VMS applications book ?
Arne Vajhøj
arne at vajhoej.dk
Sun Aug 19 23:32:01 EDT 2018
On 8/19/2018 11:04 PM, Dave Froble wrote:
> On 8/19/2018 3:09 PM, Kerry Main wrote:
>>> From: Info-vax <info-vax-bounces at rbnsn.com> On Behalf Of Arne Vajhøj
>>> Sent: August 19, 2018 2:30 PM
>>> There are a couple of perspectives:
>>>
>>> data science perspective - what data are there and what business
>>> value an
>>> they provide
>>>
>>> IT perspective - how the fuck do we store and search all that data
>>>
>>> Due to our background we may find the second more interesting.
>>>
>>> But it is actually the first that is most important - if there is
>>> money to be made
>>> crunching PB of data, then the IT guys will find a technical way to
>>> crunch PB of
>>> data.
>>
>> <https://www.lifewire.com/what-exactly-is-big-data-4051020>
>> " 50% to 80% of big data work is converting and cleaning the
>> information so that is searchable and sortable. Only a few thousand
>> experts on our planet fully know how to do this data cleanup."
>>
>> Like the large data warehouses of the past, garbage in, garbage out.
>> If the data is not cleaned up, then it will produce crappy and/or
>> inaccurate results.
>
> And if it's improperly "cleaned up" ?????
>
> Then you got cleaned up garbage ....
>
> When you're searching the haystack for a diamond, there is no guarantee
> there is a diamond in the haystack, and, you got lots of useless hay.
>
> Not saying there isn't useful data at times, but, how does one really
> know if it's useful?
In real life.
Typical if the output from the big data analysis result in revenue
going up or cost going down.
Arne
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