Neural Networks and Data Science

  • March 28, 2013 · 6:30 PM
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6.30pm Networking and free beer + pizza

7pm Talks start

 

"Bayesian Neural Networks" by Johanna Fleckner,  Project Manager & Data Scientist at Blue-Yonder

A Bayesian Neural Networks approach offers several important features like:

  • The conventional approach to network training, based on the minimization of an error function, can be seen as a specific approximation to a full Bayesian treatment.
  • Similarly, the technique of regularization arises in a natural way in the Bayesian framework. The corresponding regularization parameters can be treated consistently within the Bayesian setting, without the need for techniques such as cross-validation.
  • For regression problems, error bars, or confidence intervals, can be assigned to the predictions generated by a network.
  • For classification problems, the tendency of conventional approache s to make overconfident predictions in regions of sparse data can be avoided.
  • Bayesian methods provide an objective and principled framework for dealing with the issue of model complexity (for example, how to select the number of hidden units in a feed-forward network), and avoids many of the problems of over-fitting which arise when using maximum likelihood.

 

Q&A

Beer and networking break

Community Update

 

"Reservoir computing: Adaptive online machine learning and neural networks " by Neri van Otten, Data Scientist at Conversocial

Reservoir computing is a term used to couple together several independently found techniques. The most well known of which are the Echo state network and the Liquid-state machine. These techniques are normally used for offline training but it is possible to also use them for online problems. This talk will demonstrate how

 

Q&A

More networking

Event finishes by 9.30pm-ish

 

 

Join or login to comment.

  • martin g.

    From the abstract was expecting a much more technical talk on bayesian neural nets. Seemed a bit of a sales pitch in the end.

    7 · March 29, 2013

    • Carlos

      You are a bit unfair to the speaker... The fact that the CERN and other major particle physics research centres use this Bayesian NN algo is not for granted... http://www-ekp.physik...­ The speaker was quite humble and was trying to express the power of the algo more than anything else... If you were bored with references to particle physics then Why not asking and confronting the speaker in the Q&A instead of keeping quiet?

      March 29, 2013

    • Jason T.

      Thanks for the KIT link Carlos

      March 30, 2013

  • Michal S.

    Hi Carlos,
    just wanted to thank you again for putting all those meetups together.
    It was my first meetup yesterday and I really enjoyed. it. I am looking forward to the next ones, especially the python ones ;))))

    Also I have suggested some discussion that maybe some other people would find interesting too: http://www.meetup.com/Data-Science-London/events/111658492/ . Best regards,
    Michal

    March 29, 2013

  • louis

    Well, i found her talk quite interesting and just think that she was a bit afraid to reveal too much considering the technical level of the audience . She was probably briefed by her boss

    March 29, 2013

    • Carlos

      I'd agree; there might have been a bit of "boss curation" but she provided solid answers when asked during her talk. Then her Q&A engagement was pretty good too, she gave some good practical tips and to the point explanations, which afaik were not rebuked much by the crowd. Surely this might not have been 100% enough for those hardcore NN&Bayesian's, but it's difficult to please a diverse audience with difference levels of understanding altogether. Put yourself on her shoes.

      2 · March 29, 2013

  • Jussi L.

    Place came too late

    March 28, 2013

  • madhuban

    Sorry, still at work! Wish you started an hour later

    March 28, 2013

  • Carl-Johan R.

    Will not be able something came up at work

    March 28, 2013

  • Peter

    Sorry, I can't make it. Got a bit of an emergency at work.

    March 28, 2013

  • atlas

    Sorry I can't do it tonight :(
    One more place for ppl on the waiting list...

    March 28, 2013

  • Susan S.

    I just got a late confirmation but can no longer make tonight - sorry to miss this.

    March 28, 2013

  • Harvey Z.

    Cannot join this time...

    March 28, 2013

  • Amitabh S.

    Late confirmation

    March 28, 2013

  • James S.

    Urgh. I'm ill and I have homework to do, so I'll have to pass :/

    March 28, 2013

  • martin g.

    We're looking to hire data scientists and machine learning specialists. Please come and talk to me to find out more.

    March 28, 2013

  • Max

    Damn virus :(

    March 28, 2013

  • Karl P.

    Sorry for late cancellation. The talk looked awesome - unfortunately I'm on sick duty.

    March 28, 2013

  • Mike D.

    sadly cannot attend. looks like a great. Be great to catch the video's later

    March 28, 2013

  • Simon B.

    Sorry, unable to make it.

    1 · March 28, 2013

  • Jamie

    Sad to be unable to come afterall

    March 28, 2013

  • Dominic S.

    Is there anything we can read in advance? Googling for Bayesian Neural Networks turned up some oldish PhDs and papers but nothing that one should obviously read.

    1 · March 16, 2013

  • Stefano P.

    I received the availability too late (5min ago). I'm really sorry that I will miss this.

    March 28, 2013

  • Gourav S.

    Hi, will this event be recorded, like the last one?

    March 28, 2013

  • Paul

    Really sorry I can no make it tonight.

    March 28, 2013

  • Klaudia G.

    sorry for late notice but something has come up and I can no longer make it.

    March 27, 2013

  • Simon H.

    Really sorry, I have a piece of coursework I didn't know about and it's urgent! Can't wait to finish with the MSc tbh....

    March 27, 2013

  • Tim L.

    Sorry - something's come up now and I can't make it, enjoy.

    March 27, 2013

  • sahera k.

    I don't think I 'm on waiting list!

    March 27, 2013

  • Tina de S.

    Gutted I cant make it but have to attend an industry AGM :-(

    March 27, 2013

  • George A.

    Clashes with Data Driven meetup

    March 27, 2013

  • Hamza A.

    is it free any fees to pay ?

    March 21, 2013

    • Ranadip

      Yes its free Afaik

      March 24, 2013

  • Harvey Z.

    just want to confirm, I thought this Neural Network event is going to happen in FT? or I am confused this with other event? cheers

    1 · March 24, 2013

  • Amir

    I'm gratuade in computer science ,so Im looking forward and I would like to attend this meeting

    March 24, 2013

  • Enzo M.

    For avid readers, may I suggest "Bayesian networks: a practical guide to applications". It contain (little) theory but also lots of practical examples of use.

    March 16, 2013

    • Malcolm S.

      SInce the Google Books version as the -- "pages are not shown in this preview" in all the later chapters and the (Amazon) cost is £68 -- this is not a viable option for most, unless they have a sympathetic librarian. Progressively harder to find nowadays.

      March 17, 2013

  • atlas

    Hope I am not breaking any rule by posting a slightly off topic question. I am writing a feature on neural networks. Doing research I've discovered that NN have a number of fancy application in the real world. Which do you think is the most interesting/promising?

    March 16, 2013

  • sahera k.

    Thank you Carlos for resources. it is better to be prepared for seminar.

    1 · March 16, 2013

  • Anish M.

    Carlos, i wouldnt mind a copy ;)

    March 16, 2013

  • sahera k.

    Yes I would like to attend this meeting

    March 15, 2013

  • JUNIOR S.

    The room at this location can seat up to 300 people = Venue: B34, Basement Level, Birkbeck College, Torrington Square WC1E 7HX, London.
    Would you consider moving it to this location for this talk, or as a backup for future talks please.

    March 15, 2013

  • A former member
    A former member

    Wow, this filled up quickly. Carlos is a rockstar! :) Sellout crowds are good but having been on the waiting list myself last time, I know how frustrating it is. Hang in there...it seems a lot of spaces become available from the day prior to the event right up until the evening when people realised they can't make it.

    March 14, 2013

  • Gourav S.

    Hi Carlos, this meetup is on the same date as another meetup from Data Driven group. Both are interesting, so I was thinking whether there is any chance to reschedule the meetup ? I am placing a same request in the Data Driven group as well -- regards Gourav

    March 14, 2013

    • A former member
      A former member

      I hope the date for this meetup is not changed . With 120 places taken already and another 100+ on the waiting list I think there will be no shortage of people to fill places if some decide they prefer the The Data Driven meetup ( which does sound interesting) There will always be interesting things to do in London whatever night is picked, and choices have to be made.

      March 14, 2013

    • Carlos

      Gourav, Mark - thx for the feedback. Our meetups are planned well in advance. No plans to reschedule.

      1 · March 15, 2013

  • Jonathan L.

    Hi, I am an quantitative analyst found of Machine Learning and willing to share my passion.

    1 · March 14, 2013

  • Matt B.

    Looking forward to another good talk

    March 14, 2013

  • Ben G.

    Hold back those anthropomorphisms, let's talk code & data; woot!

    March 14, 2013

  • Giles P.

    last used Neural Nets ages ago interested to see how they have progressd

    March 14, 2013

  • Vignesh M.

    Attending.

    March 14, 2013

  • TomH

    Looking forward to it

    March 14, 2013

  • Adi A.

    Looking forward

    March 14, 2013

  • Josh C.

    Looking forward to some demos

    March 14, 2013

  • Srikanth

    Looking forward to this event!

    March 14, 2013

  • Klaudia G.

    Awesome! cannot wait!

    1 · March 14, 2013

  • Joel S.

    Looking forward to this.

    March 14, 2013

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Rafaël

We just grab a coffee and speak French. Some people have been coming every week for months... it creates a kind of warmth to the group.

Rafaël, started French Conversation Group

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