Archive

Archive for May, 2012

Digital Office I: Introduction and Hardware

May 27, 2012 7 comments

Working efficiently in the digital world is not as easy as it sounds, in particular as you get more and more files to deal with. Furthermore, while eliminated paper sounds like an excellent (and green) idea, it is not obvious to fully to eliminate all of it and yet still be productive without putting too much time on the gadgets themselves. I am have been toying with the idea of going fully digital around 2009 by bringing my notebook with me everywhere, including meeting. The truth is that many people around the table find typing and looking at a computer while having a meeting quite impolite. I further find it impractical. However the coming of the iPad change all that. The next few posts will look into the digital workflow I settled in since then.

The general rule I set forth for myself is that the tools (hardware or software) should never become the focus, get in the way of accomplishing works. Therefore, the overall solution must follow three simple rules:

  1. Minimal effort to maintain
  2. Maximize efficiency
  3. Be fun to use (you should want to use it!).

Yes it has an initial set-up “fee,” your time. Yes it involves buying a few commercial software (back to the above rules). The series will be divided in number of posts: hardware, software on the Mac side, software on the iPad / iPhone side and workflows for working with a large number of files and GTD like project / task management. I will post them over the next few weeks. Today I start with the hardware.

Digital office: The hardware

The above photograph is a nice summary of the hardware have been using for the past few years: a notebook has been my main computer since 2003, iPad (since it came out), a large Apple Display, keyboard and mouse (this I have duplicate at home and in my University office – just need to bring my notebook with me), a Fujitsu Scansnap 1500M and a Drobo for high capacity, protected backup.

For a long time I have been a unix / linux user. As such, I used to have a Mac at home, a windows box at work which dual boot into linux (for real work!). When OS X came out, I have started to use the beta version and was able to perform all of my heavy duty work (gcc, g77 and so on) directly with a Mac. As early of 2003, I switch from a “big” box to a laptop. The black PowerBook G3 was probably the computer I like the most over the years. It became my only work computer when I acquired it. No more copying of files from one computer to the others (this was before DropBox and the likes).

People like to complain that Mac are expensive and so on. Three important points to consider. The ownership cost of a Mac over the life of the computer is lower than a PC/Windows box (see this Ars Technica article). The maintenance of a Mac is quite trivial in my experience (I have done admin tasks for Sun Solaris computers and also built and maintained a Linux network of computers for data analysis in nuclear physics for a few years so do have small bit of experience to compare to) and require little attention from the users (rule 1!). Finally, you should like to work with the tools you have, be it a simple pen, an iPad or your computer; it should even be an excuse to do things with it (rule 3)!

The iPad factor
I bought the first version of the iPad a few weeks after it came out. It has rapidly become the most productive gadget I have ever bought. For example, as a university professor I have to read, revise and referee thousands of pages per year. I can now do this anytime, anywhere. No need to print, write and for others to decipher my writing after the fact because the bus ride was too bumpy! Interestingly, you choose the amount of documents you carry around at any time and the weight is always the same, that of the iPad.

The best thing is that you are not attached to a desk (or a screen) anymore. This feeling of freedom you almost (emphasis on almost here) have with a regular notebook computer. However, it is just a tiny big too big and cumbersome, even the MacBook Air. Furthermore, the current generation of small and cheap netbook is simply that: cheap, small (screen and keyboard), underpowered in term of CPU and memory relative to the OS they are running. In contrast, the iPad feel blazing fast. With the 3rd generation of iPad not only it’s fast but the screen is better than anything out here including “theater” TV screen.

From a digital workflow perspective, the iPad has about the size (and weight) of a good old paper-based notebook and just a bit smaller than a letter size piece of paper. In other word the perfect size to jot down notes, ideas and drawing. It is the first device of its kind that can be truly carried around and intuitively be use for creative thinking, anytime, anywhere. The best part is the iPad is only single app away from a full transformation to the most amazing gizmo on the market for creative people, period! A full post will be dedicated to such apps.

Backups
Backups obviously became very important in the above context. I used simple hard drive backup solution with a daily incremental backup schedule for years (until time machine). Been looking at various options. I did manage raids under linux and found them lacking flexibility (at the time). Drobo was an interesting solution: like the Mac an easy to use technology and you do not have to worry about maintenance (rule 1 again). Just put a bunch of drives, don’t even need to be the same sizes or models, and let the unit do the rest. So, I have been using Drobo since then. My current unit (S model) uses 5 drives with a two drives failure protection scheme using 2x2Gb and 3×1 Gb SATA “enterprise-labeled” drives – and a extra external drive with a bootable perfect copy of my notebook drive that I update once in a while (and keep at another location, just in case).

Getting digital
The Fujitsu scanner is a must for a digital office. It can scans one or two sides of documents, business cards and so on. It comes with a full array of software like Abby OCR and IRIS CardScan (at least at the time I bought the unit). Nowadays, I keep almost no paper document at all. Either I exchange PDF / WORD documents with students or colleague or scan everything that is worth conserving in PDF format. I also scanned most of my filing cabinets over the last three years ( getting ride of a large one in the process and about to get rid of a small two drawer units).

I have all my important e-mails since 1991, all of my conference presentations, courses taught, documents written and essential project references that I worked on (at least all of those which could be digitized) since 2000. This makes for tens of Gb of digital information (excluding all multimedia files like photos, movies and so on). Yet, I can search (not just document titles but also specific information inside them) and get documents within seconds. The issue with so many digital files becomes how to store, retrieve or archive them: a true and efficient digital database for any file format. At the center of all this, is of course the software.

…To be continued

Don’t Listen To Advice, And Other Advice From Nobel Laureates – Science News

Categories: Mentoring Tags: ,

Don’t forget the basic stuff!

This semester I thought an undergraduate laboratory to last year engineering students. These will be entering the job market (or pursue graduate studies) in a few days. I was really surprised going over the lab reports how very basic things are omitted. Things like error analysis or displaying error bars on figures. How can one make any valid statement on the results or general behavior of data without them?

While the final format is not unique a few elements are quite common

  • Your report will likely contain an introduction, review of the theory, method and materials with measurement set-up, results presented and discussed and a conclusion.
  • If a calibration of an instrument is involved, shows the graph, give the mathematical relationship with the fit parameters and the quality of the fit (R2 at the very least). Do not forget the error bars.
  • Make your figures readable! The experimental measurements should be represented by symbols while any fits should be represented by lines. Please avoid Excel. It can make acceptable figures if you work hard on them but specialized software (even GNUplot) are way better.
  • Do not underestimate the power of well design tables to present a resume of multiple measurements. Going over 10 or more pages of lab report to be able to sum your results is not a good way to get extra points. Furthermore, it is likely that this exercise will lead you to make a better discussion of (or find obvious mistakes in) your data and analyses.
  • To present (or unearth) trend in data, nothing beat graphical representations: do figures as often as you deem necessary and decide afterward to include them or not in the report. Again you might uncover interesting things in your data, which you have not thought of.
  • If data are expected to be compared to a theoretical model, display the results of that model along with the data (see previous comment!). If the model can be fitted to the data, again give the fit parameters and the quality of the fit. If the fit parameters are related to physical values, they also need to be discussed.
  • If data are to be compared to expected values or a theoretical model, your discussion should be quantitative ( not qualitative). Is the match perfect (within the error of x%)? If deviation are important, gives the deviation either in the form of absolute or relative differences or even replotting the data relative to the expected reference values or theoretical model. In any case, you are expected to make your discussion quantitative be default.
  • Any deviation or unexpected behavior in the data must be discussed (even if you do not know the reason for a deviation)

While the above might seems a lot of work, it will in fact save you work when it is time to write your discussion, not mentioning that you should see an immediate improvement of your grades.

Manifesto: Stop Stealing Dreams

May 14, 2012 1 comment

Seth Godin has written an very interesting (and free) manifesto about the US school system (though the birth of Canada school system is very similar in origin): Stop Stealing Dreams. The book is very well written and will take only a few evening to get through.

Many instances had me stop reading and ponder. The example of LEGO (item 51 in the book) is something me, friends and colleagues have been discussing for a while; it is the concept of pre-made LEGO model which comes with instructions. It removes much of the creative process and turns the fun of doing LEGO into a purely technical step-by-step process. Generic LEGO are clearly missing (not to say that the new LEGO cannot be fun).

Similarly, I found more than often very bright students finishing their undergrad studies with extremely good grades but in a situation where they are unable to to function in graduate school because the “questions” are not given to them: they now have to ask their own questions and also find the answers. These students had become extremely proficient at performing on “imposed” questions with very clear answers such as exams, finals and so on, but are lost when they have to tackle a much less rigid projects (e.g. a PhD thesis).

Which type is your thesis advisor?

May 3, 2012 1 comment

In a discussion with a postdoc of mine, she was telling me that she observed that advisors are of three types: opener, middle cruncher and closer… I am not sure this is the whole story but there is something to it

Opener corresponds to those individuals that the exceptionally good in defining projects in details, breaking it in smaller parts, imparting a vision to it and setting an achievable target for success. They are also especially good in getting all that is needed to get the project going.

Middle “crunchers” are highly efficient to step in resolving issues, pointing out important elements during the realization and getting new ideas along the way. They can turn around a project that appears to be failing and make them winner. At the same time, a number of individuals in that category tends to jump from project to project without always finishing the previous one: once they understand what’s going on, they get bored and move to a new “problem”.

Closers are particularly good in identifying key moments in project where enough have been done and, for example, a pause should be taken to write a paper and your thesis. They will guide you to destination and make sure everything is perfect.

I found out that getting ideas for projects is usually an easy part for most peoples. However, it does take more to be successful as a researcher. You have to be able to funnel those ideas to actual projects that are executed and in the end published in a form that is accepted in your field. A good mix of the above categories is essential. We all know or have encountered peoples for which one or more of the above is lacking… they usually experience difficulties in being independent researchers.

Have a critical look at how you are conducting your research activities and try to find out which one of the three types need your attention right now. Repeat once in a while. See how improving your weakest “side” help you get better overall!

Which types are you? What type is your thesis advisor?

Follow

Get every new post delivered to your Inbox.

Join 46 other followers

%d bloggers like this: