Database Reference
In-Depth Information
Entropy over Iterations for soft−movMF
1.8
news20−same3
small−news20−same3
news20−diff3
small−news20−diff3
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
0
5
10
15
20
25
Number of iterations
FIGURE 6.8
: Variation of entropy of hidden variables with number of iter-
ations (
soft-movMF
).
Name a
physicist
who searched
for intelligent life in the cosmos
type=
physicist
NEAR “cosmos”…
abstraction
entity
is-a
Where
was Sagan born?
type=
region
NEAR “Sagan”
region
person
city
scientist
When
was Sagan born?
type=
time
pattern=
isDDDD
NEAR
“Sagan” “born”
time
district
physicist
year
state
astronomer
hasDigit
isDDDD
Born in New York in 1934 , Sagan was
a noted astronomer whose lifelong passion
was searching for intelligent life in the cosmos.
4
FIGURE 10.1
: Document as a linear sequence of tokens, some connected
to a type hierarchy. Some sample queries and their approximate translation
to a semi-structured form are shown.
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