Monday, November 25, 2013

Visualizing High Dimensional Data (PCA, LLE, t-SNE)

Here is a Great talk about data visualization: Visualizing Data Using t-SNE - YouTube

Here is the PCA 2 dimension reduction of mnist data (digit 28x28). 

Now with a better transformation to keep distance function.


LLE (collapse many points to one)

So now, what is better in the context of unlabeled data?

You can now use t-SNE to visualize millions of objects. Very exciting!

Monday, November 18, 2013

Simplicity's impact on conversion

What drives online business is conversion. What is the biggest driver of increase in conversions?
  • More users landing (PPC)
  • Payment simplicity
What is the point of increasing the number of users landing to your site if you don't start by optimizing your biggest show stopper: the payment funnel.

Digital currency such as bitcoin can simplify this funnel by making it one step, not 4. 
So which currency is less friction?

Does simplicity really increase conversion:

Tuesday, November 12, 2013

Want to start a startup?

Compilations of fraka6 post on startup + important concepts reference

Serial entrepreneur rules: You will not stop to one 
Founding: Network than Money
Strategy: Disrupt existing market
Information theory applied to business
Recruiting/talent management: Hire personality, train skills
Why MBA aren't designed for startup
Bootstrapping: Its feasible
Contrat: found a template (20 items)
IP: Don't get caught in the lawyer game of gray zone
Startup Vs Entreprise: The futur of innovation if startup inside the beast

+ importants concepts: Start with why, get organized and focus
David S. Rose: How to pitch to a VC (You|Integrity|passion|experience|knowledge|skills|Leadership|Commitment|Vision|Realism|coachable)
importance of advisor agreement = biggest mistake you can make
FREE ENTREPRENEUR TOOL (Profit spotify is an interesting tool to mine amazon best seller to identify market)
Amazing selling machine

Sunday, November 10, 2013

Why MBA aren't design for startup?

Why standard MBA don't bring any value to startup is quite simple, they are trained to be successful in a big corporation not in a struggling startup in the early stage.

Thursday, November 7, 2013

Information theory applied to business

If you want to validate a business need, you have to master information theory. 

#1 Evaluating people feedback
        - Indifference = Nice to Have = No value
        - Hate or Desire = High Information = High potential

Potential is proportional to reaction, good or bad. Normal reaction is a sign of nice to have which means no value.

#2 Value
    - Ask = Little value (nice to have)
    - Pain = High Value
    - Observe = a business opportunity

Never ask people want the want, observe them and focus on their pain.

#3 Don't forget: Benefits >>Cost  

Last, there is no business if the benefits aren't significantly higher then the cost.