Working at home

We are spending a week in Madrid to say goodbye to my brother-in-law and a few other friends. My niece came with us.

I was suppose to work also. Except for the exams I had to grade, I took the weekend for me, doing stuff we never do at home like playing with a Playstation. We are not going to have one anyway.

Today, being Monday, I'm catching things up. After going around, looking for a place to work, I came back to the main room. But had to put my headphones as my niece is playing now.

I guess that's one reason the rhythm of couples change so much after having children.

Meanwhile, Lizz Wright is helping to keep my eyes on the PC at the Python code.

UPDATE: s/nephew/niece/g.

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Moving mode

It's less than one month to flight back to Venezuela. We are getting into moving mode, trying to distinguish documents from trash. I'm kind of scared because so many things are changing in one shoot, and I still need to finish the thesis. For example, I'll have to buy a car as I arrive. For different reasons it has be a new one. I expect that 50% of my salary will end up on paying it, including insurance. Weird.

Meanwhile, I have solved a few bugs that had appear on our planner, involved in a competition nowadays. I have organized more what I'm going to said in the whole thesis.

The journal papers isn't ready yet. The aeternal journal paper. We found an small inconsistency between the article and the code. I lost some performance on enforcing right a property we need. There still code for checking other property that is buggy, but is necessary to add a sentence to the paper: "All the instances we have tried are consistent".

I'll be with my niece and my wife in Madrid for a week. My brother-in-law and his wife are going to visit Caracas we two more friends. Each one will carry on a extra piece, as their limit is two per person. We are just trying to move our stuff without having to pay extra money. We don't have that money.

In Madrid I'll see a few people to say goodbye, and stayed at home, working. I'll try to catch up with this blog about what I'm exactly doing.

The picture if my desktop. A picture of my wife and my brother are in there.

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Proofs in a PhD thesis

Should I put the proof after each theorem, proposition?
Or should I put them in an appendix of the chapter, or of the whole thesis?

I think it depends on the style of the thesis, and the number of proofs. I looked around on the work of people working in similar topics, or just near me for some other reason.

On the very theoretical side of the spectrum is the thesis of Hubie Chen, who I share office with, has all the proofs immediately after each theorem. His works is quite conscious and I think it make sense.

Less theoretical is the thesis of Ron Petrick, who did experiments. His proof are in the appendix. It makes sense as his work is very technical and the proof has lot of details. Adding them in the main text, would have make the text impossible to follow.

The thesis of Blai Bonet and the thesis Patrik Haslum are theoretical and experimental. They both put the proofs on the main text.

In journals in my area (like Artificial Intelligence Journal - AIH, Journal of Artificial Intelligence - JAIR) people do both, depending on the needs. For the article we are working at, we choose to put them in an appendix. There are lots of ideas, and putting the long proof on the body is not a good idea.

For my work, the situation is heterogeneous. In general have both theoretical and experimental work, as Blai and Patrik. (Not surprising, just see coauthors of both of them, and you will find my advisor). I think for the first part, I will put the proof in the main text. There are not many of them. For the last part, corresponding to this article we are working at, I would like to keep the separation. I'm worried about not following the same "policy" across the whole document. What do you think?
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Vivid tables of experimental results in Latex (2)

In the discussion about tables in Latex, Eduardo's and Mico's suggested some improvement over the tables. Here you can see an updated version of the same part of the table. (I know, I change a number. There was a mistake before).

I've removed vertical separators and most of horizontal lines. I left a few to separate results over the same family of problems.

PS: I tried to add this to the same post doing some tricks. The editor of posterous does not allow to add pictures. So a did a new post (through email as usual), a then copied the nasty coded posterous uses for links images. I didn't work. So, Ok, new post.

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Music/Video at Festa Major de Gracia

First, I put some pictures, sent by email in a zip. I like the gallery, but the navigation can be improve. This is the prev
http://conformant-thesis.posterous.com/pictures-of-the-festa-major-de

Now I uploaded first the videos to Youtube. I wanted to try sending them by email. But my camera make huge uncompressed AVI. It's impossible to send 34Mb by email.



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Pictures of the Festa Major de Gracia - 2008

It's amazing. A huge party on the streets, as it were an small town. Concerts on different places: Jazz, Ska, Rumba, Hard core rock, etc.
That's it. I won't go the rest of the days... But it was really awesome.

                             

Click here to download:
fiesta-gracia.zip (5931 KB)

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Festa Major de Gracia

The HUGE program of the Gracia Fest in Barcelona / Festa Major de Gracia.

PS: The official site http://www.festamajordegracia.cat is being very slow

(download)

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Vivid tables of experimental results in Latex

I've discussed with my advisor about how to show results in the tables for our eternal journal paper. We are comparing the performance of different algorithm/software. Should we bold the best times of each one? best time over similar problems?

I said the data is in the tables. So, bold should be use only for giving a suggestion of a fast impression. We finally agreed on using bold face for the harder problem of each family solved by each algorithm.

By the way, on tables for Latex. As every latexer knows, it is painful to edit them on a pure text like emacs. I have tried everything, including Lyx and Texmacs, and then exporting them. Both are almost fine.

However, I opted for total control by using Openoffice - Calc.

  1. Collect your data. Summarize using lookup on sheets generated by your scripts, in case you want to rerun experiments. I generate many CSV and then import them into a document in Openoffice.
  2. Create sheets for each table to be used in Latex, linking what you want. Don't paste the data itself. Use links (special paste), so everything is keep update.
  3. Put columns with separators of line '\\', lines '\hline' and separator of columns '&'.
  4. Put multicolumn where you need, overwriting some '&' to keep the number of columns in sync.
  5. Finally, create a new document, copy the content of that sheet.
  6. Save it as CSV (Comma Separated Value) and using no separator or field. Every text on each cell will be concatenated with neighbor cells, but it's ok. You've used '&'.
  7. Keep the "save content of cell as it seen". So you keep rounding of numbers, etc.

Voilá!

You have wonderful Latex code you can paste in your tables.
If some experiment is rerun, or you need to remove a column, start again from step 5.

PS: My advisor drop by. I shown him the result and he didn't like it.
I think I'll buy some day these two books:

 

 

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Testing voice/mp3/podcast/whatever

As you can see, I haven't started working.

It took me a few minutes to understand how to import pictures into my Ubuntu/Linux laptop using a cable. Is not an USB folder. GThumb did the work for both pictures and audio. The audio is recorded using our small camera. PowerShot A570 IS. I haven't manage to make work the mic in this laptop. I'm posting a wav file to see if posterous convert it into an mp3. Next time I'll use an mp3, saving my bandwidth.

  
(download)

update: yeap, they are not converting it into WAV, at least for the download. Next time I'll send an mp3.

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Let's start with the status of the thesis

The situation is the following, I'm still filling gaps of a journal version of a paper that should have been submitted months ago. Almost a year, in fact. Things has become increasingly confusing for me. Fortunately, this is going to be the main result of the dissertation, so it's ok to invest time on it.

Here it is. The draft of the table of content. The ideas organized themselves until I started to put some deep insight, that in most cases turns out to be just trash. My advisor told to not get distract, get to the point, and just said. Crisp and clear. I've always heard that. We'll see if I've heard it enough.

TODO for today, in order.
  1. Finishing tables for paper, and captions.
  2. Going over the table of contents of the whole thesis. I need to discuss it a little bit more.
  3. Hopefully, some beers in Festa Major de Gracia, the yearly fest of a neighborhood that have become focus of attraction for tourist in August.

It seems I'll try to post once a day, unless I'm so ashamed of what I've not done.

PS: Trying the auto-post picture of posterous.
PS2: F***. 2nd try. I want to delete another acount to be able to post from gmail without chaging the "From" field. Hey, support!, please answer my email and delete that account.
UPDATE: Support answer back and delete that account. It seems they are trying very hard on solving problems and improving posterous. Cool.

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