系統設計者的話：學英文根本不用背，你講中文，你有在背中文嗎？學英文也是一樣的道理，那是自然而然就會的東西，用背的方式最後肯定都是不行的。 更多...

最好的學習就是有英文的父母，不斷的跟你說話、耐心的教導你，時間長了，你也就慢慢就融入其中了。

但是我們沒有英文父母怎麼辦？看影片學英文就學的起來嗎？學不起來。

我們從小到大，也看過了不少英文電影，至少也看過1、200部也跑不掉，但是為什麼看了這麼多的英文電影，英文還是很爛呢？

主要的原因是我們沒有從基礎性的強化學習。舉個例子，西方的幼兒出生時，他至少聽了各種大人講英文至少聽了2年，才慢慢開始說英文、與大人互動。

而且都是一字一句慢慢的說、慢慢的教、漸進式的、慢慢的、越來越習慣、越來越聽的懂、越來越會說的過程。

那麼我們看的影片、電影過程中，都是大人成熟型的講話速度、方式、語調，我們怎麼可能跟的上？

一旦跟不上，思想中就會產生覺的好難哦、我不行種種念頭，那麼產生了這種潛在式的排斥心理作用，那麼你就更難學的會了。


所以我們必須打好基礎、深厚的基礎，萬丈高樓平地起，唯有打下深厚的基礎，後面你走的路才會越來越順。

程式界裏有句話，程式債欠的越多，最後就只能放棄。學英文也是一樣，英文單字債欠的越多，你就直接上來文法、句型、語調，最後也只能放棄。

基於上述的思維，我打造了這套系統，從最基礎的單字學習起，不斷的強化、加深你對這個單字的聽力，透過各式各樣的影片、各式各樣的人、各種不同的場景。

就只是為了訓練一個單字的聽力，無數的人跟你講同一個單字，講個20遍、50篇、100遍(且不重覆)，我就不信學不起來。


這套系統做出來後，我自己在使用的過程中，確實真的能聽出來他們講的這個單字，而且他們講的速度再快也能聽的出來。

能聽的出來，就知道他講的大概意思；能夠知道他講的大概意思，就能夠用幾個簡單的單字回應；能夠回應，也就能夠對話；當能夠對話，就能夠再修正文法、句型、語調。


我的目地就是希望自己至少能聽的懂人家在說什麼，用英文跟人家對話，大家共同努力、學習。若有其它想法或對這套系統設計的建議，也可以與我聯絡：ichich2013@gmail.com

Playtime 2016 - Predicting lifetime value in the apps world
觀看次數：452
and
if
it's
about
revenues
it's
about
that's
good
value
modelling
and
of
predictive
or
buyers
come
to
my
shop
and
purchase
goods
what's
the
cost
of
acquiring
monetization
that's
fairly
simple
and
it
of
visits
recency
of
the
last
purchase
variables
that
you're
feeding
into
the
contractual
or
a
non
contractual
relationship
to
your
user
a
contractual
in
a
news
app
that's
a
contractual
from
the
user
whereas
a
non-contractual
instance
revenues
also
predictive
in
which
you're
in
so
if
you're
a
startup
and
you're
very
new
to
the
predictive
analysis
model
if
you're
a
beginning
predictive
analysis
that's
it's
one
of
the
metrics
but
it's
a
good
focused
on
maximizing
lifetime
value
based
on
assumptions
so
assumptions
can
shouldn't
be
the
only
criteria
and
you
average
revenues
per
user
right
it
for
180
days
ltv
calculation
we
have
a
software-as-a-service
business
which
non-contractual
business
model
subscriptions
contractual
business
model
lifetime
of
their
subscriptions
of
15
user
into
a
paying
user
so
lifetimes
inactive
he's
turned
that's
my
users
are
getting
inactive
hence
that's
my
that's
my
churn
and
that's
my
active
lastly
our
monetization
metric
where
monthly
revenues
divided
by
man
fact
if
that's
the
basic
that's
the
basic
segments
and
that's
something
also
to
calculating
your
lifetime
value
but
it's
euros
today
those
10
euros
won't
buy
you
right
inflation
so
that's
something
to
case
scenario
will
be
refinanced
that's
we
want
to
showcase
the
nicest
routes
this
app
idea
and
we're
bootstrapping
v8
calculations
first
of
all
we
found
premium
apps
you
have
subscriptions
you
in
play
so
they're
having
they're
having
elasticity
testing
methods
using
indices
certain
purchasing
power
indexes
in
camel
ringo
when
it
comes
to
maximizing
be
a
promotional
video
or
screenshots
they're
responding
to
bad
to
bad
reviews
they're
also
responding
to
good
reviews
but
they're
actually
they're
actually
trying
to
maximize
the
ratings
so
what
to
25%
increase
in
downloads
well
that's
at
subscriptions
now
a
good
a
good
following
in
subscriptions
the
arpu
is
fixed
if
you're
having
your
monthly
beforehand
the
ltv
in
subscriptions
is
subscription-based
developers
or
180
days
or
365
days
just
like
we've
mattina
right
there
are
certain
caveats
subscription-based
apps
first
exclude
because
you're
having
a
contractual
net
present
value
fourth
cross-platform
attribution
now
let's
take
the
example
monetization
form
that
you're
actually
lt
v
equals
subscription
fee
times
churn
assume
my
motorbike
app
only
has
2
paying
subscribers
one
of
them
is
maxime
streaming
app
right
and
they
analyzed
subscribed
in
the
app
this
user
will
interesting
points
for
dramafever
churn
because
it's
depending
on
those
variables
now
for
dramafever
it's
at
backfired
impactful
so
they're
offering
very
few
promotions
but
they're
making
sure
that
if
they
offer
promotions
they're
very
good
promotions
from
very
appealing
to
think
many
subscription-based
apps
do
they're
segmenting
quite
a
lot
and
two
very
important
points
they're
minimizing
passive
churn
and
they're
trying
to
you
can't
renew
let's
say
you
don't
have
you
won't
be
renewing
but
that's
passive
churn
they're
trying
to
have
really
counteracting
it
they're
also
trying
to
subscriptions
how
do
I
do
that
in-app
purchases
and
making
some
of
our
now
freemium
apps
ltv
depends
a
lot
of
lifetime
calculation
for
freemium
apps
presumably
in
your
non-contractual
okcupid
uses
an
in-house
customized
certain
variables
are
certain
let's
say
messaging
thread
if
he's
having
conversations
with
people
in
their
app
looking
into
genders
and
they're
also
looking
at
geographies
lastly
they
see
comes
to
maximizing
ltv
okcupid
told
us
that
for
them
optimizing
conversions
for
in-app
purchases
mainly
depends
on
a
trying
to
optimize
creative
messaging
them
they're
trying
to
customize
that
geographies
genders
ages
and
so
on
in
that's
a
premium
functionality
that
they
promotions
again
if
they're
on
high
impactful
promotions
with
this
kind
of
they've
increased
20%
in
purchases
for
monetization
because
generally
you're
interested
in
user
impressions
because
is
interstitial
it
depends
on
the
geographies
it
depends
on
the
buyers
formula
the
ardian
adapts
this
one
the
cohort
they
segment
those
cohorts
into
the
geographies
and
they're
using
buga
sharapova's
popular
gaming
muga
will
serve
him
interstitial
video
interstitial
apps
because
that's
where
and
installing
and
downloading
downloading
and
installing
the
app
and
vip
packages
because
that's
where
monetization
now
i'm
a
big
fan
of
life
is
in
app
purchases
premium
lifetime
value
equals
price
in-app
$999
$799
and
$299
depending
on
how
the
app
pay
for
downloaded
but
only
in-app
purchases
upgrades
occur
in
the
onboarding
safe
so
two
hours
after
downloading
and
installing
the
app
they
then
get
vip
branding
in
they
give
the
user
an
they're
there
they're
in
a
purchase
listing
it's
like
a
it's
like
a
message
monetization
thank
you
very
much

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