Week 1

Question 1

data

Answer 1

individual facts that are out of context, have
no meaning, and are difficult to understand.

Question 2

information

Answer 2

a set of data in context with relevance to one or
more people at a point in time or for a period of time.

Question 3

knowledge

Answer 3

the fact or condition of knowing something with
familiarity gained through experience or association.

Question 4

Tacit/implicit knowledge

Answer 4

the knowledge
that a person retains in their mind

Question 5

explicit/formal knowledge

Answer 5

knowledge that
has been formalized, codified and stored

Question 6

knowledge graphs

Answer 6

With KGs we can present hidden information/facts from the table to make the knowledge explicit.

a useful way of representing data, information and
knowledge …

…that are heterogeneous
…in such a way that others (systems/people) can interpret a piece of data correctly
…by making the semantics/meaning of a piece of information explicit
…using graph (network)
…explicity on the Web

Question 7

syntax

Answer 7

Which expressions are legal (well-formed), what we exactly mean to say

Question 8

semantics

Answer 8

what legal expressions mean,
the meaning of each sentence with respect to interpretations, define what statements are correct so we can interpret them

Question 9

calculus

Answer 9

how to determine meaning for legal expressions. define what we can derive from the graph

Question 10

entailment

Answer 10

if something makes the left true, the right has to be true too

Question 11

prefix notation
(normal: -((A -> (-B v C)) v (-D v -E)))

Answer 11

where every letter will be on its own. and you move the symbols in front of it.
-(v(->(A, v(-(B), C)), v(-D),-(E))))