Archive for the 'software' Category

jboard included

Monday, April 12th, 2010


short video clip about jboard (1.4 MB) (link to 12.1 MB)

randform reader Lano Ferryman asked in a comment to a randform post:

If you are so interested in new input devices – so why don’t you report on the new iPad?

answer: First of all I think there had already been quite some media coverage about the Apple iPad thus I dont really think that testing the iPad on randform is really needed. And in order to be fair one would need also to report on other similar tablet computers or tablet PCs. Moreover I haven’t seen the iPad yet, apart from displays in in-depth video demonstrations. Tim is a bit skeptical about it, since you can’t run a programming language on the iPad, so he couldn’t e.g. install his string-rewriter jsymbol on the iPad. So he is rather waiting, like there is e.g. a Berlin company called neofonie, which produces a similar pad, called wePad (wikipedia site (sofar only in german)) which is announced to run like with an Android-like-OS that is it is some Linux, but able to run with Android applications (and rumor has it, that google is also about to release an android powered pad), furthermore Adobe Air is available on the wePad, thus Flash would run on it (i am not such a fan of flash though). However the webpage of the wePad isn’t really overly informative. On the wePad’s facebook site (in german) one can at least read (in german) that more information in particular regarding price etc. is to be released tomorrow.

It is also that I am getting more and more reluctant to promote new technologies which make people want to consume more.

On the other hand its not that randform is totally uninterested. Tim has meanwhile some new programs, which would run nicely on an iPad-like pad. The above short clip displays his program jboard (under development) for using an electronic board. I was asking him to implement something like stickers (on the right side of the board) where you can store little pieces of text and graphics, which you can freely move and copy to other pages. The stickers are automatically “tagged” with parts of what the sticker holds, but one can also tag them also with any other self-designed icon/text. So for example if you have a table you are constantly referring to throughout a lecture then you can get that table from the sidebar by clicking on your icon. We forgot to display the highlight feature in the clip.

update 13.04.10 – I forgot to mention: Tim is not sure wether jBoard will be GPL, LGPL or something similar, in any case jBoard will be open. There will also no ridiculous patents be filed (like for the stickers). Further development of jBoard will be rather slow, in particular next week the semester starts again and Tim will mutate again into a teaching machine.

Saturday, January 23rd, 2010

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In an earlier randform post, the distribution of surplusses was discussed, among others it was proposed to simulate a different way of distributing surplusses in a game-like environment. There were some comments to this:
Sabrina Says:” why don’t you make a business model out of that game prototype?”
Victor Says:
“if you have these dangerous ideas to abolish banks or let them go bankrupt, this is communism!
And
“did you fit in all your parameters?!”

Here a reply to the comment by Victor “if you have these dangerous ideas to abolish banks or let them go bankrupt, this is communism !” :

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on the return from investments

Monday, October 19th, 2009

ehrenamtlich

Sometimes it happens that someone says to you something occasionally – like as a side remark, but that that phrase – despite its parenthetical nature – sticks in your head. Something similar to this happened to me when an intern at a german company where I was also as a student intern said to me: Nadja – one should buy shares only with gratuitous money, never with money that one needs. Maybe this phrase stuck in my head because this person was one of the very few persons in my surroundings which knew something about the stock market, who knows. However bank accountants and other financial consultants kept telling me to care for my retirement by investing in all sorts of bonds. In view of this discrepancy of recommendations and out of curiosity I thus took part in an online game which was organized by a german public TV station (If I remember correctly WISO, ZDF).

In this game one started with a fixed virtual start amount of money which could be virtually invested in real stocks at real prices. Despite that this “stock market” was only a game it nevertheless became quite captivating. I learned a lot in this game, like that it is rather difficult to have high returns on short term investments a.s.o At the end the game became quite time consuming though. But as a result I decided to follow the advice of the person from the internship which was sound. I never owned a bond.

But this little adventure in financial markets taught me more. It made me clear that the feature of “surplus” or “gratuitous money” is quite essential. Or in other words the often proclaimed view that financial markets are democratic and open to everybody seems to be more informed by concrete interests (like to sell financial packages to laypersons) than by actual facts.

Further deduction allows to say in a simplified manner that there are the following ways to become rich (we leave marriage and adoption out): that is either by being able to “sell” highly demanded goods (like done by hollywood actors, exceptional artists, rags to riches etc.) or via owning a surplus and letting the “money work” with high returns and/or a combination of the two. Lotto wins etc. are the exception to this rule. Lets consider criminal activities also as an exception.

It is interesting to observe that the first kind, i.e. the “self-made” riches are rather accepted while the latter the “undeserved”, “lazy” riches are seen more critically. This holds especially true for the recent protagonists of the financial crisis who still – despite their obvious failures demand more returns and/or boni than what is commonly regarded as appropriate.

However it is undenied that surplusses and the rather decentralized investment of surplusses is somewhat necessary in a technological society.

High risk investments carry a high risk of failure and thus they usually carry a high risk of personal loss, so it makes sense that high risk investments usually result in higher returns than low risk investments, in order to encourage them. However meanwhile a lot of returns in the banking businesses are exorbitantly high even without any personal risk at all. Without exagerating it can be said that the whole regulating mechanism of return vs. risk seems to be out of control – at least in the banking business.

In short –it seems that the question of how to deal with surplusses and the “return of investments” is a rather crucial point in any economic discussion.

In particular, apart from the disastrous performance of the banking business, it can be said that “capitalism” hasn’t given a satisfying answer to the question of how to encourage investments into ventures with from the outset low return or even with from the outset no return at all, despite the fact that these investments are often crucial for technological and societal developments. In my eyes this is a major flaw of “capitalism” or however you wanna call the current system.

Considering the above observations I thus started to think about: How could this flaw be mitigated ? and: How can one come up with something?

Inspired by the above described game and also by games like the Sims which usually mimick a real world in a virtual environment (and where the gameplay is supported by the fact that people like to “train” for the real world) I asked myself to what extent a “new investment system” could be implemented in a game in order to test such a system for the real world. One knows that such “experiments” have limited capabilities of providing real life evidences, however they may be not completely useless. At least it seems that the new possibilities in times of MMPORGS havent been fully explored in economic science.

My question turned thus into: “How can one set up an investment scheme (in a game like environment) which encourages investments into ventures with from the outset low return or even no return?”

Assume we have a kind of Sims game that is sort of a real life economic scenario. Could it be supplied with a different system of money distribution and storage than with the usual banking and economical scheme, in particular the system should be able to encourage investments into ventures with no return, but which are desired for technological and societal reasons? If yes – What could be possible? What can one think of?

Here – a very incomplete and rough (and probably not working) scheme as a start, which is mainly intended to encourage brainstorming about these issues rather than provide a solution.

Starting from the crucial point that surplusses are needed for investments, lets assume there exists a certain amount of surplus. In the game that surplus is just a fixed start amount of extra money. In reality and within a country one could find such a surplus in all assets which are not unconditionally needed for covering the running costs. Its a debatable point what these are, but in richer countries one can find a surplus. Or coltishly put: Schloss Neuschwanstein could a priori be liquidized. In some sense a countries surplus is an indicator of how a country florishes. If there is no surplus and if even running costs cant be covered a country is usually considered to be bankrupt.

Now a surplus could be in total centrally distributed by a government. However similar real life experiments like in a centrally planned economy showed that this was economically less successful. Nevertheless it is meanwhile also rather undisputed that governments or other societal institutions should be able to exert an influence on the distribution of surplusses.

Hence lets e.g. assume that the given surplus is evenly distributed among the participants (in order to give the most democratic chance of investment and in order to mitigate the problem of lazy riches).

Impose the rule that any personal surplus has to be spend within a short time span into various (short and long term) investments (so money has to be invested). The investments have to promise “benefits” that is either one can collect benificiary points (being e.g. issued by societal institutions prior to investment) for investments into ventures with low or no return or one can collect money returns. For the work which is related to the distribution of the surplus each participant gets a “wage” which can be used for one’s own consumption. The wage is dependend on the success of the investments. If an investment yields no return or no beneficiary points or worse if even the investment is lost then the participant is “punished”. E.g. in the worst case that is if the whole surplus is lost then the participant is punished with “getting no wage from surplus”. The actual size and dependency of the wage with respect to the earned returns and/or beneficiary points is thus an important parameter.

All made returns and beneficiary points enter the personal surplus and have to be reinvested. A venture may store collected investment and eventually issue interests until the needed lump sum is collected that would accomodate for the storage effect of banks.

It may be also be good to allow only for investments which are not ones own investments. This would e.g. encourage long-term investments, since the surplus could anyways not be spend on ones own projects and thus accomodate at least partially for the intermediation function of banks.

Note that the distribution of beneficiary points is also an important parameter. (please see also this randform post about assigning values) In particular beneficiary points may be distributed to such different things as newcomer bands, extraordinary social activities/aid or research in quantum gravity.

detexify

Saturday, July 25th, 2009
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I am thinking about syntax, equation representation and display, symbolic computations, and all that stuff a lot lately. Now by chance I stumbled over somewhat the reverse process (via micromath):
detexify, a nice little tool that lets you draw a symbol and (hopefully) retrieve the corresponding LaTeX command for it. Mathematical formula recognition seems to be a beast of its own kind, still it would be nice to have sort of an electronic scratch paper on wich you can scribble your formulas and the system reads them and checks them for validity.

midori vs aoui

Thursday, July 23rd, 2009

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Traffic lite in Brietain

Our friend Sophie Molholm coorganized recently a conference in multisensory research. Looking at the conference announcement I felt inspired to ask myself again to what extend rational cognitive instances do influence perception. An example: A traffic light in the western world is usually considered to have the colors red-yellow-green (or at least red and green (although the new LED lights look kind of bluish)). However I think it is important to note that in japaneese the green color for a traffic light – is not “MIDORI” (green), but “AOUI”, which is BLU! Did this make japanese people more prone to call something green-bluish “blue” instead of green? Doing experiments for this example might be difficult due to the ethnic pecularities, but I am sure there exist other examples and probably even studies on that subject.

here a little collection of randform posts related to the subject:

naming-gaming: evolution of languages
wirepullers: artwork challenging salience
manicone: artwork challenging 4 dimensional space perception
focus and context, part I: evolution and knowledge formation
focus and context, part IV: A Physicist Experiments With Cultural Studies: knowledge formation in humanities vs natural sciences
Le manoir du diable: conscientious coloring of astronomical data
common sense: designing computer minds at media lab
canny skinny skin scans perception and quantum computing (see also focus and context, part IIa: A quantum computation game)
error incognito:perception and space
Dreammachine: psychadelic effects in neuroscience
uncanny paintings: link to an experiment using facial expressions as a feedback interface for a painterly rendering algorithm
visualizing meaning: link to a survey concerning the usefulness of diagrams and charts in knowledge building (and a funny comment to that)

VHS vs DVD

Monday, July 20th, 2009

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On the heater in the entrance hall of our appartment building neighbears left a collection of VHS magnetic tapes for free.

I was wondering wether there exist/will exist VHS lovers in the same way as there exist Vinyl lovers (see e.g. this documentary about vinyl lovers or this randform post). (VHS scratching?! huh)

Lucifer’s toy lab

Wednesday, July 15th, 2009

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Last weakend we were doing a visit to the Deutsche Museum.

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diversity

Friday, January 30th, 2009

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“withoutsockpuppets” artwork by artgroup: “Pump up the Wolumen”

In a previous post/comment I suggested that the genetic information about nowadays people and animals may be an important information to store on a long term basis.

In the comment I gave a rough estimation on how much computers would cost to capture DNA sequences, I did not include maintanance etc., i.e. the computation was only intended to give an faint idea about the costs. And of course one could also think about storing e.g. bones or the easy available hair, from which the DNA can be recovered.

The option should be voluntarily, but easily accessible to everyone, so that diversity is maintained. it should contain extra information, like geographical and birth/death-date and so on.

I put the suggestion here in a blog post in case people want to discuss.

on high teach speed

Sunday, January 25th, 2009

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A reader called Ingeborg was asking

>>>”Do you think that teaching did impair your research?”

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on the move

Sunday, January 11th, 2009

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“podarki (presents)” by Masha Istchaisl

I am currently too much on the move for blogging, hope to catch up at a higher pace in some weeks.

But I’ll try to answer comments. (e.g. like this one about the storage of genetic information)