April 2017 - Pharo-users - lists.pharo.org

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Alexandre Bergel

Hi! One very important aspect of Jurajâs work, is that _participants at a sprint should use the sprint tool_. It comes with the latest Pharo image (i.e. what has to be used in a sprint). So, letâs use it on Friday! Cheers, Alexandre > On Apr 24, 2017, at 8:05 AM, K K Subbu <kksubbu.ml(a)gmail.com> wrote: > > On Sunday 23 April 2017 08:43 PM, Juraj Kubelka wrote: > >> As the Pharo Sprint is organized in several places around the world, we >> miss the connection with other guys. For that reason we decided to move >> the physical whiteboard to the internet and developed Pharo Sprint App. > > Excellent idea and a very useful tool! It took me just a few minutes to download it and post my first fix through it. > > What would be workflow for using this app? Is this only for Pharo Sprint participants or can others also use it? > > I faced a minor problem in the UI. The top half of login/password text input fields got clipped by title bar, when I opened it up first. Later the Update/Logout buttons also have their top border clipped off. > > Regards .. Subbu > -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

April 24, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by K K Subbu

On Sunday 23 April 2017 08:43 PM, Juraj Kubelka wrote: > As the Pharo Sprint is organized in several places around the world, we > miss the connection with other guys. For that reason we decided to move > the physical whiteboard to the internet and developed Pharo Sprint App. Excellent idea and a very useful tool! It took me just a few minutes to download it and post my first fix through it. What would be workflow for using this app? Is this only for Pharo Sprint participants or can others also use it? I faced a minor problem in the UI. The top half of login/password text input fields got clipped by title bar, when I opened it up first. Later the Update/Logout buttons also have their top border clipped off. Regards .. Subbu

April 24, 2017

Re: [Pharo-users] Neural Networks in Pharo

by Oleks

Hello, Thanks a lot for your advice! It was very helpful and educating (for example, I thought that we store biases in the weight matrix and prepend 1 to input to make it faster, but now I see why it's actually slower that way). I've implemented a multi-layer neural network as a linked list of layers that propagate the input and error from one to another, similar to the Chain of Responsibility pattern. Also, now I represent biases as separate vectors. The LearningAlgorithm is a separate class with Backpropagation as its subclass (though at this point the network can only learn through backpropagation, but I'm planning to change that). I'm trying to figure out how the activation and cost functions should be connected. For example, cross-entropy works best with logistic sigmoid activation etc. I would like to give the user a freedom to use whatever he wants (plug in whatever you like and see what happens), but it can be very inefficient (because some time-consuming parts of activation and cost derivatives cancel out each other). Also, there is an interface for setting the learning rate for the whole network, which can be used to choose the learning rate prior to learning, as well as to change the learning rate after each iteration. I am planning to implement some optimization algorithms that would automize the process of choosing a learning rate (adagrad for example), but this would require a bit different design (maybe I will implement the Optimizer, as you suggested). I'm attaching two images with UML diagrams, describing my current implementation. Could you please tell me what you think about this design? The first image is a class diagram that shows the whole architecture, and the second one is a sequence diagram of backpropagation. mlnn.png <http://forum.world.st/file/n4943698/mlnn.png> backprop.png <http://forum.world.st/file/n4943698/backprop.png> Sincerely yours, Oleksandr -- View this message in context: http://forum.world.st/Neural-Networks-in-Pharo-tp4941271p4943698.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

April 23, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Thierry Goubier

Hi Juraj, a superb idea! A fluent interface to the Pharo sprint. Thierry Le 23/04/2017 Ã 17:13, Juraj Kubelka a Ã©crit : > Hi, > > We are happy to announce a new application called Pharo Sprint App. The > main idea of the application comes from the whiteboard that have been > used during Pharo Sprints and was also adopted in Chile. > > > As the Pharo Sprint is organized in several places around the world, we > miss the connection with other guys. For that reason we decided to move > the physical whiteboard to the internet and developed Pharo Sprint App. > > > *How does it work?* Participants choose a case from the âproposed' or > âallâ list. Once they are done, they move it to the âdoneâ list. We > believe that the application will encourage other people, especially > newcomers, to join us during the events and have a fun, together with > other developers. > > *How To Use It?* > â¢ Download the latest image from Bintray > <https://bintray.com/jurajkubelka/PharoSprint/build/_latestVersion#files> > â¢ Execute the image, using the corresponding VM for Pharo 6 > â¢ Run the application from World Menu / Communication / Pharo Sprint > â¢ Login, using your FogBugz account, wait a bit, then choose a case and > have a happy programming :-) > > Everybody participating in the sprints should use the Pharo Sprint image. > > The upcoming event is on Friday April > 28: https://association.pharo.org/event-2492488 > > The application is deployed in Pharo 6 (32 and 64bits). More details are > available at: https://github.com/JurajKubelka/PharoSprint > > I will appreciate any feedback. > > Have a fun! :-) > Juraj >

April 23, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Offray Vladimir Luna CÃ¡rdenas

Congrats Juraj. Pretty useful for the community. This idea of inside image tools talking with community channels is starting to take form. Cheers, Offray On 23/04/17 11:51, Juraj Kubelka wrote: > Yes, it is connected to FogBugz and it leaves message in FogBugz and > also in Discord: > > image1.PNG > > image2.PNG > > > Juraj > > -- > Juraj Kubelka > > El 23-04-2017, a las 13:32, Stephane Ducasse <stepharo.self(a)gmail.com > <mailto:stepharo.self@gmail.com>> escribiÃ³: > >> do you mark the cases that are taken by someone? >> >> >> >> On Sun, Apr 23, 2017 at 6:27 PM, Stephane Ducasse >> <stepharo.self(a)gmail.com <mailto:stepharo.self@gmail.com>> wrote: >> >> This is supercool :) >> Do you connect to fogbugz to grab the tasks? >> >> Stef >> >> On Sun, Apr 23, 2017 at 5:13 PM, Juraj Kubelka >> <juraj.kubelka(a)icloud.com <mailto:juraj.kubelka@icloud.com>> wrote: >> >> Hi, >> >> We are happy to announce a new application called Pharo >> Sprint App. The main idea of the application comes from the >> whiteboard that have been used during Pharo Sprints and was >> also adopted in Chile. >> >> >> As the Pharo Sprint is organized in several places around the >> world, we miss the connection with other guys. For that >> reason we decided to move the physical whiteboard to the >> internet and developed Pharo Sprint App. >> >> >> *How does it work?* Participants choose a case from the >> âproposed' or âallâ list. Once they are done, they move it to >> the âdoneâ list. We believe that the application will >> encourage other people, especially newcomers, to join us >> during the events and have a fun, together with other >> developers. >> >> *How To Use It?* >> â¢ Download the latest image from Bintray >> <https://bintray.com/jurajkubelka/PharoSprint/build/_latestVersion#files> >> â¢ Execute the image, using the corresponding VM for Pharo 6 >> â¢ Run the application from World Menu / Communication / Pharo >> Sprint >> â¢ Login, using your FogBugz account, wait a bit, then choose >> a case and have a happy programming :-) >> >> Everybody participating in the sprints should use the Pharo >> Sprint image. >> >> The upcoming event is on Friday April 28: >> https://association.pharo.org/event-2492488 >> <https://association.pharo.org/event-2492488> >> >> The application is deployed in Pharo 6 (32 and 64bits). More >> details are available at: >> https://github.com/JurajKubelka/PharoSprint >> <https://github.com/JurajKubelka/PharoSprint> >> >> I will appreciate any feedback. >> >> Have a fun! :-) >> Juraj >> >> >>

April 23, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Sven Van Caekenberghe

Impressive work indeed. I guess Marcus will be happy, you save him a lot of work being 'master of ceremony' at Sprints. > On 23 Apr 2017, at 19:24, Tudor Girba <tudor(a)tudorgirba.com> wrote: > > Great work, Juraj! > > Doru > > >> On Apr 23, 2017, at 5:13 PM, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: >> >> Hi, >> >> We are happy to announce a new application called Pharo Sprint App. The main idea of the application comes from the whiteboard that have been used during Pharo Sprints and was also adopted in Chile. >> >> <Copia de whiteboard.jpeg> >> >> As the Pharo Sprint is organized in several places around the world, we miss the connection with other guys. For that reason we decided to move the physical whiteboard to the internet and developed Pharo Sprint App. >> >> <main-window.png> >> >> How does it work? Participants choose a case from the âproposed' or âallâ list. Once they are done, they move it to the âdoneâ list. We believe that the application will encourage other people, especially newcomers, to join us during the events and have a fun, together with other developers. >> >> How To Use It? >> â¢ Download the latest image from Bintray >> â¢ Execute the image, using the corresponding VM for Pharo 6 >> â¢ Run the application from World Menu / Communication / Pharo Sprint >> â¢ Login, using your FogBugz account, wait a bit, then choose a case and have a happy programming :-) >> >> Everybody participating in the sprints should use the Pharo Sprint image. >> >> The upcoming event is on Friday April 28: https://association.pharo.org/event-2492488 >> >> The application is deployed in Pharo 6 (32 and 64bits). More details are available at: https://github.com/JurajKubelka/PharoSprint >> >> I will appreciate any feedback. >> >> Have a fun! :-) >> Juraj >> > > -- > www.tudorgirba.com > www.feenk.com > > "We can create beautiful models in a vacuum. > But, to get them effective we have to deal with the inconvenience of reality." > >

April 23, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Ben Coman

On Sun, Apr 23, 2017 at 11:13 PM, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: > Hi, > > We are happy to announce a new application called Pharo Sprint App. The > main idea of the application comes from the whiteboard that have been used > during Pharo Sprints and was also adopted in Chile. > > > As the Pharo Sprint is organized in several places around the world, we > miss the connection with other guys. For that reason we decided to move the > physical whiteboard to the internet and developed Pharo Sprint App. > > > *How does it work?* Participants choose a case from the âproposed' or > âallâ list. Once they are done, they move it to the âdoneâ list. We believe > that the application will encourage other people, especially newcomers, to > join us during the events and have a fun, together with other developers. > > *How To Use It?* > â¢ Download the latest image from Bintray > <https://bintray.com/jurajkubelka/PharoSprint/build/_latestVersion#files> > â¢ Execute the image, using the corresponding VM for Pharo 6 > â¢ Run the application from World Menu / Communication / Pharo Sprint > â¢ Login, using your FogBugz account, wait a bit, then choose a case and > have a happy programming :-) > > Everybody participating in the sprints should use the Pharo Sprint image. > > The upcoming event is on Friday April 28: https://association.pharo. > org/event-2492488 > > The application is deployed in Pharo 6 (32 and 64bits). More details are > available at: https://github.com/JurajKubelka/PharoSprint > > I will appreciate any feedback. > > Have a fun! :-) > Juraj > > Thanks Juraj. This is great. I saw your testing in the discord chat and was curious. This reminds me, one thing I've wanted to do for a long time is type an Issue number into PharoLauncher and have it download latest Image, get the issue title from Fogbugz to rename the Image, start the image with a script to open Inbox ready on the Issue. If I ever do get to it, mixing in your sprint app might be cool. cheers -ben

April 23, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Juraj Kubelka

Hi, > El 23-04-2017, a las 14:37, "phil(a)highoctane.be" <phil(a)highoctane.be> escribiÃ³: > > Please put that on the Pharo site (how to contribute section) so that we do not have to hunt this email down. You are right, put it on Pharo site is on my todo list. Juraj > > Phil > >> On Sun, Apr 23, 2017 at 7:24 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote: >> Great work, Juraj! >> >> Doru >> >> >> > On Apr 23, 2017, at 5:13 PM, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: >> > >> > Hi, >> > >> > We are happy to announce a new application called Pharo Sprint App. The main idea of the application comes from the whiteboard that have been used during Pharo Sprints and was also adopted in Chile. >> > >> > <Copia de whiteboard.jpeg> >> > >> > As the Pharo Sprint is organized in several places around the world, we miss the connection with other guys. For that reason we decided to move the physical whiteboard to the internet and developed Pharo Sprint App. >> > >> > <main-window.png> >> > >> > How does it work? Participants choose a case from the âproposed' or âallâ list. Once they are done, they move it to the âdoneâ list. We believe that the application will encourage other people, especially newcomers, to join us during the events and have a fun, together with other developers. >> > >> > How To Use It? >> > â¢ Download the latest image from Bintray >> > â¢ Execute the image, using the corresponding VM for Pharo 6 >> > â¢ Run the application from World Menu / Communication / Pharo Sprint >> > â¢ Login, using your FogBugz account, wait a bit, then choose a case and have a happy programming :-) >> > >> > Everybody participating in the sprints should use the Pharo Sprint image. >> > >> > The upcoming event is on Friday April 28: https://association.pharo.org/event-2492488 >> > >> > The application is deployed in Pharo 6 (32 and 64bits). More details are available at: https://github.com/JurajKubelka/PharoSprint >> > >> > I will appreciate any feedback. >> > >> > Have a fun! :-) >> > Juraj >> > >> >> -- >> www.tudorgirba.com >> www.feenk.com >> >> "We can create beautiful models in a vacuum. >> But, to get them effective we have to deal with the inconvenience of reality." >> >> >> >

April 23, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by phil＠highoctane.be

Please put that on the Pharo site (how to contribute section) so that we do not have to hunt this email down. Phil On Sun, Apr 23, 2017 at 7:24 PM, Tudor Girba <tudor(a)tudorgirba.com> wrote: > Great work, Juraj! > > Doru > > > > On Apr 23, 2017, at 5:13 PM, Juraj Kubelka <juraj.kubelka(a)icloud.com> > wrote: > > > > Hi, > > > > We are happy to announce a new application called Pharo Sprint App. The > main idea of the application comes from the whiteboard that have been used > during Pharo Sprints and was also adopted in Chile. > > > > <Copia de whiteboard.jpeg> > > > > As the Pharo Sprint is organized in several places around the world, we > miss the connection with other guys. For that reason we decided to move the > physical whiteboard to the internet and developed Pharo Sprint App. > > > > <main-window.png> > > > > How does it work? Participants choose a case from the âproposed' or > âallâ list. Once they are done, they move it to the âdoneâ list. We believe > that the application will encourage other people, especially newcomers, to > join us during the events and have a fun, together with other developers. > > > > How To Use It? > > â¢ Download the latest image from Bintray > > â¢ Execute the image, using the corresponding VM for Pharo 6 > > â¢ Run the application from World Menu / Communication / Pharo > Sprint > > â¢ Login, using your FogBugz account, wait a bit, then choose a > case and have a happy programming :-) > > > > Everybody participating in the sprints should use the Pharo Sprint image. > > > > The upcoming event is on Friday April 28: https://association.pharo.org/ > event-2492488 > > > > The application is deployed in Pharo 6 (32 and 64bits). More details are > available at: https://github.com/JurajKubelka/PharoSprint > > > > I will appreciate any feedback. > > > > Have a fun! :-) > > Juraj > > > > -- > www.tudorgirba.com > www.feenk.com > > "We can create beautiful models in a vacuum. > But, to get them effective we have to deal with the inconvenience of > reality." > > > >

April 23, 2017

Re: [Pharo-users] [Ann] Pharo Sprint App to improve coordination during Pharo Sprints

by Tudor Girba

Great work, Juraj! Doru > On Apr 23, 2017, at 5:13 PM, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: > > Hi, > > We are happy to announce a new application called Pharo Sprint App. The main idea of the application comes from the whiteboard that have been used during Pharo Sprints and was also adopted in Chile. > > <Copia de whiteboard.jpeg> > > As the Pharo Sprint is organized in several places around the world, we miss the connection with other guys. For that reason we decided to move the physical whiteboard to the internet and developed Pharo Sprint App. > > <main-window.png> > > How does it work? Participants choose a case from the âproposed' or âallâ list. Once they are done, they move it to the âdoneâ list. We believe that the application will encourage other people, especially newcomers, to join us during the events and have a fun, together with other developers. > > How To Use It? > â¢ Download the latest image from Bintray > â¢ Execute the image, using the corresponding VM for Pharo 6 > â¢ Run the application from World Menu / Communication / Pharo Sprint > â¢ Login, using your FogBugz account, wait a bit, then choose a case and have a happy programming :-) > > Everybody participating in the sprints should use the Pharo Sprint image. > > The upcoming event is on Friday April 28: https://association.pharo.org/event-2492488 > > The application is deployed in Pharo 6 (32 and 64bits). More details are available at: https://github.com/JurajKubelka/PharoSprint > > I will appreciate any feedback. > > Have a fun! :-) > Juraj > -- www.tudorgirba.com www.feenk.com "We can create beautiful models in a vacuum. But, to get them effective we have to deal with the inconvenience of reality."

April 23, 2017