02 Unstructured data and API

multi processing (parallel processing)

large problem can be divided into smaller ones, which then all the components of large problem can be solved at the same time

string

used for combination of any characters that appear on a keyboard, such as numbers, letters, and symbols

character

used for a single letter/number/symbol

integer

used for whole numbers

float (real)

used for numbers that contain decimal points, or fractions

boolean (or bool)

used where data is restricted (true/false or yes/no options)

nominal (qualitative datatype)

set of values that don’t posses a natural ordering (not quantifiable and cannot be measured through numerical units (red, blue, yellow)

data analytics data types

qualitative data and quantitative data

ordinal

natural ordering (small, medium, large)

discrete (quantitative data type)

integers or whole numbers

continuous (quantitative data type)

fractional numbers (have a numeric value)

unstructured data

BLOB and CLOB

BLOB

binary large objects - images, audio files, and video clips

CLOB

character large object - often source remains at native location and CLOB field is an address which references the location of the data (books and medical record documents)

what is an API

application programing interference - software intermediary that allows two applications to talk to each other (Lego parts in building applicator)

how to work with unstructured data

assign unstructured data property or tags so that it can be evaluated or worked

sentiment analysis (example of unstructured data)

opinion mining is a NLP technique used to determine whether data is positive, negative, or neutral

what can sentiment analysis be used on

textual data to help businesses monitor brand and product sentiment in customer feedback and HR to understand managers repour with direct reports

word cloud

understand what your audiences feel about a topic or situation and your audiences can summaries their view of a topic

focus points while scrolling through an article: sentiment analysis

pro-choice, unclear, pro-life

focus points while scrolling through an article: graphical representation

understanding meaning without focus on actual numbers

VPN (virtual private network)

think sending a postcard via the internet vs a letter in a lockbox where only the sender and the receiver have the key to the lockbox so no one else can read your letter

server

a computer that stores and manages information; shares info with devices whenever it is asked (like going to the library and asking for a book and the librarian gets you (serves) the book

IP (internet protocol) address

unique ID (digital address) assigned to every device connected to the internet

how encryption works

plaintext>ciphertext>plaintext (via an algorithm or passphrase)