The
current
ongoing
large
imaging
surveys
are
an
excellent
tool
for
studying
origin
and
evolution
of
the
Universe
and
the
galaxy
-
dark
matter
connection,
using
the
weak
gravitational
lensing
as
the
main
probe.
Using
the
predicting
power
of
the
halo
model
formalism,
the
weak
gravitational
lensing
(together
with
other
large
scale
probes)
can
be
used
to
constrain
the
origin
of
the
scale
dependence
of
the
galaxy
bias
-
the
relation
between
the
galaxies
and
the
dark
matter
distribution,
as
well
as
studying
the
dependence
of
the
formation
time
of
galaxies
on
their
halo
masses
-
so
called
assembly
bias.
In
this
talk
I
will
present
the
KiDS
survey
and
the
overview
of
the
weak
lensing
formalism
and
it's
connection
with
the
halo
modelling,
which
in
turn
can
be
used
to
shine
a
light
on
the
different
aspects
of
galaxy-halo
connection.