serhii.net

Blog categories

TODO: Add links to categories in my blog, they might be useful for example for Pentachronological #0015 Праздник | Я сам, соломка, чай.. And in general maybe look into the blog itself - maybe I want to unite it with Diensttagebuch or something?

Jekyll images size

{%raw%}![ddr](/wp-content/static/pentachronological/d2.jpg){:width="40%"}{%endraw%}

Random/Interesting

If you really want to make something good, eat good food and drink good saki. (Welcome to the NHK, episode 20.) ¹

A tv drama has a progressive plot, an emotional climax and a resolution, but our lives aren’t like that… all we get day after day are vague anxieties that are never resolved. ²

questo è uno di quegli anime che fanno morire una piccola parte di te, passi 1-2 giorni ripensando a ciò che hai visto malinconico. Al 3 giorno pensi un’ultima volta a ciò che ti ha trasmesso, sorridi e il vuoto che ti ha dato si riempie di fiori dandoti molto di più da ciò che ti aspettavi. ³

And on the topic of fully enlightened people:

Ad-hoc tables via tabulate

tabulate works surprisingly well to make random tables:

>>> x = tabulate.tabulate([['WHAT','Will happen','Will not happen'],['If I do this','',''],['If I don\'t do this','','']],tablefmt='grid')
>>> print(x)
+--------------------+-------------+-----------------+
| WHAT               | Will happen | Will not happen |
+--------------------+-------------+-----------------+
| If I do this       |             |                 |
+--------------------+-------------+-----------------+
| If I don't do this |             |                 |
+--------------------+-------------+-----------------+
>>>

Italian

(wow?) debellare - Wiktionary - sconfiggere/eliminare. ³

Inkscape make handler nodes bigger

microscopic handle nodes - Beyond the Basics - Inkscape Forum

Confusingly, that setting is in Preferences > Input/Output > Input Devices.

Krita lags

Krita’s slowness can be fixed by looking at the settings of Display and looking through Krita FAQ — Krita Manual version 4.3.0.

Zathura follow links / display links

Except by clicking on them, f gives numbers you can follow;F outputs the link text in the statusbar.

Anki::Import

The Anki::Import documentation doesn’t make it clear enough, but using a quote(') works too for carrying on old tags along with the usual backtick, but for signalling an empty field only the backtick works.

Also I don’t think I can control the Cloze deletions - it automatically generates identifiers for them. Not going to get into perl to fix this :)

Vim regex reference

Vim Regular Expressions 101 is a really nice reference for vim’s search/replace/regex things. Maybe I’ll work through it later.

Most interesting is that groups are created with \(-\) and mentioned as \1 (will be handy for search-and-replace!)

I miss having a “now learning” textfile. (TODO)

Also this is a nice summary of the differences between vim and python/perl regexes, in vim characters are more likely to be literally interpreted: ¹

Perl    Vim     Explanation
---------------------------
x?      x\=     Match 0 or 1 of x
x+      x\+     Match 1 or more of x
(xyz)   \(xyz\) Use brackets to group matches
x{n,m}  x\{n,m} Match n to m of x
x*?     x\{-}   Match 0 or 1 of x, non-greedy
x+?     x\{-1,} Match 1 or more of x, non-greedy
\b      \< \>   Word boundaries
$n      \n      Backreferences for previously grouped matches

And regex101.com remains the best place to test usual regexes.

Pinta and gthumb

I’ve been looking for something simpler than GIMP for casual blurring / cropping / adding text, pinta mostly fits the bill but I find it hard to use and no easy blur brush, gthumb is much more minimalistic in functions but is more pleasant to use.

Zsh global aliases and aliases that take arguments

Zsh has global aliases! An Introduction to the Z Shell - Aliasing is awesome. alias -g M='| more' -> who M

This has a lot of potential for often-typed parts of commands.

But I went there to look for arguments, and apparently zsh explicitly doesn’t have them and wants functions instead. So:

% rm () { mv $* /tmp/wastebasket }
% rm foo.dvi
% ls /tmp/wastebasket
foo.dvi

So I changed my taskwarrior s alias to:

#alias s='task s sprint.is:$SPRINT or sprint:c' 
s () {task s sprint.is:$SPRINT or sprint:c $*}

Now I can finally filter my tasks for the sprint (s +F)

// TODO replace dependence on $SPRINT by just usind current week number.

Not the first time I neglect to read the documentation of the software I switch to, being happy that it mostly works like the previous one.

Random / interesting

The Technium: 68 Bits of Unsolicited Advice

My favourite parts:

• Being enthusiastic is worth 25 IQ points.
• Being able to listen well is a superpower. While listening to someone you love keep asking them “Is there more?”, until there is no more.
• A worthy goal for a year is to learn enough about a subject so that you can’t believe how ignorant you were a year earlier.
• Gratitude will unlock all other virtues and is something you can get better at.
• Treating a person to a meal never fails, and is so easy to do. It’s powerful with old friends and a great way to make new friends.
• Reading to your children regularly will bond you together and kickstart their imaginations.
• Rule of 3 in conversation. To get to the real reason, ask a person to go deeper than what they just said. Then again, and once more. The third time’s answer is close to the truth.
  • Compare Five whys - Wikipedia* and death certificates with multiple “due to (or as a consequence of)”
• The purpose of a habit is to remove that action from self-negotiation. You no longer expend energy deciding whether to do it. You just do it. Good habits can range from telling the truth, to flossing.
• Promptness is a sign of respect.
• If you are looking for something in your house, and you finally find it, when you’re done with it, don’t put it back where you found it. Put it back where you first looked for it.
• Show up. Keep showing up. Somebody successful said: 99% of success is just showing up.
• Separate the processes of creation from improving. You can’t write and edit, or sculpt and polish, or make and analyze at the same time. If you do, the editor stops the creator. While you invent, don’t select. While you sketch, don’t inspect. While you write the first draft, don’t reflect. At the start, the creator mind must be unleashed from judgement.
• Perhaps the most counter-intuitive truth of the universe is that the more you give to others, the more you’ll get. Understanding this is the beginning of wisdom.
• Friends are better than money. Almost anything money can do, friends can do better. In so many ways a friend with a boat is better than owning a boat.
• You are what you do. Not what you say, not what you believe, not how you vote, but what you spend your time on.
• When you die you take absolutely nothing with you except your reputation.
• Before you are old, attend as many funerals as you can bear, and listen. Nobody talks about the departed’s achievements. The only thing people will remember is what kind of person you were while you were achieving.
• When crisis and disaster strike, don’t waste them. No problems, no progress.
• When you get an invitation to do something in the future, ask yourself: would you accept this if it was scheduled for tomorrow? Not too many promises will pass that immediacy filter.
• Acquiring things will rarely bring you deep satisfaction. But acquiring experiences will.
• Rule of 7 in research. You can find out anything if you are willing to go seven levels. If the first source you ask doesn’t know, ask them who you should ask next, and so on down the line. If you are willing to go to the 7th source, you’ll almost always get your answer.
• When someone is nasty, rude, hateful, or mean with you, pretend they have a disease. That makes it easier to have empathy toward them which can soften the conflict.
• Eliminating clutter makes room for your true treasures.
• Experience is overrated. When hiring, hire for aptitude, train for skills. Most really amazing or great things are done by people doing them for the first time.
• Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job, buy the very best you can afford.
• Following your bliss is a recipe for paralysis if you don’t know what you are passionate about. A better motto for most youth is “master something, anything”. Through mastery of one thing, you can drift towards extensions of that mastery that bring you more joy, and eventually discover where your bliss is.
• The universe is conspiring behind your back to make you a success. This will be much easier to do if you embrace this pronoia.

Backup entire github account with all the repositories

Very nice tool: amitsaha/gitbackup: Tool to backup your GitHub and GitLab repositories

The Github token needed only the repo scope, needed to add it to the env variable with:

export GITHUB_TOKEN=$MYGITHUBTOKEN

Command to backup was:

./gitbackup-0.5-linux-amd64 -backupdir $BACKUPDIR -service github

Should also work for gitlab.

Also magically it took something like 30 seconds for the all of the 3.5GB of all my repos.

German

lutschen / an etw_Dat. lutschen - to suck (on) sth; Lutschtablette = lozenge.

English

lozenge: 1) A rhombus (shape); 2) A small (originall diamond-shaped!) tablet/sweet for a sore throat.

Random / interesting

Agnes Obel - Fuel To Fire (Official Video) - YouTube

First comment on the video:

All the people in this video are dead. Life is short, don’t do anything that makes you unhappy

History is happening

I can’t believe I have to say this, but please don’t drink bleach.

— Joe Biden (@JoeBiden) April 24, 2020

We live in interesting times.

English

shambolic - Chaotic, disorganised or mismanaged. Found somewhere on The Guardian applied to Trump’s daily health briefings.

Vim exclamation mark to switch parameters

A ! either forces the action or toggles the action:

:set cursorline, to turn off: :set nocursorline

Is equivalent to:

:set cursorline! ¹

python tabulate module

tabulate² generates nice tables of various formats! Things like:

print(tabulate.tabulate(db,headers=db.columns))

      epoch    loss    val_loss    val f-score
--  -------  ------  ----------  -------------
 0        1    4.31        4.62          0.579
 1        2    3.72        3.61          0.705
 2        3    3.54        3.25          0.722
 3        4    3.31        3.06          0.737
 4        5    3.19        2.93          0.736
 5        1    4.31        4.62          0.581
 6        2    3.72        3.61          0.72
 7        3    3.54        3.25          0.755
 8        4    3.31        3.06          0.755
 9        5    3.19        2.93          0.764
10        6    3.12        2.83          0.798
11        7    2.95        2.76          0.779
12        8    2.91        2.69          0.757
13        9    2.84        2.64          0.816
14       10    2.68        2.63          0.835
15       11    2.71        2.56          0.83
16       12    2.69        2.52          0.825
17       13    2.62        2.49          0.826
18       14    2.6         2.46          0.845
19       15    2.56        2.44          0.84

tabulate · PyPI is the basic documentation with visualizations of each tablefmt. It even supports jira! And pipe is the usual markdown format. Let’s try:

Tensorflow how does training happen with nan? TODO

How does Tensorflow train stuff when loss is nan? It keeps doing something, accuracy changes, etc etc etc. - is the gradient calculated per batch as normal,

Note

Einstein / Netzah “do your own thing”

German

Zinseszins - Wiktionary - compound interest. Beyond logic

pandas / python split string by multiple delimiters

Split string with multiple delimiters in Python - Stack Overflow has this really nice idea of doing str.replace(':', '_') and then str.split('_').

Pandas split string to different columns

Series.str.split(delim) can do Series.str.split(delim, expand=True), that returns different columns instead of a list.

Also - if graphs don’t make sense, one way things have gone wrong is interpreting x and y as strings.

Qutebrowser open in new background tab

c.tabs.background = True in config opens new tabs in the background when middle-clicking.

History is happening

Nurse blocking anti lockdown protests in Denver : PublicFreakout and the imgur album: Health care workers stand in the street in counter-protest to hundreds of people who gathered at the State Capitol to demand the stay-at-home order be lifted in Denver, Colo., on Sunday, April 19, 2020. Photos by Alyson McClaran - Album on Imgur. As someone said, I really imagine seeing this in history books.

Screen logging

To visualize logs of screen sessions, less -r filename (-R hates ^H progress bars but I search seems to work a bit better) works very well. Even for the (tf) progress bars almost. ansifilter exists but deals with progress bars much worse.

Empirically - for searching and scrolling the same font size / terminal size is very helpful.

Vim macros posting

Just pasting the Vim macro on Day 469, while it did not break Jekyll this time (why?), seems to have broken the RSS script at the beginning of the page.

This page contains the following errors:

error on line 19 at column 73: PCDATA invalid Char value 27

Copypasted the lines from terminal and back, but I need a much better way to save and ‘publish’ the macros. Found Vim Macro Trickz • Hillel Wayne when looking for solutions.

German grammar

• You need a dot between things like ‘u. a.’ in German, apparently.
• on a noisy dataset = auf ein Verrauschtes Dataset
• Dataset = der Datensatz, learned this far too late :)

Essential oils

.. can be added in a bath, but only in a carrier oil, olive oil works.

“For a single bath, three to 12 drops of essential oil in a tablespoon (15 ml) of carrier oil is sufficient to create a very aromatic, therapeutic bath” ¹

Tensorflow Tensorboard download CSV

Can I export a tensorflow summary to CSV? - Stack Overflow – yes I can, by clicking “show data download links” on the top left of interface and selecting what I want to download below the plots.

Why does loss increase at the beginning of an epoch?

machine learning - Why training loss is increased at the beginning of each epoch? - Stack Overflow - probably because the dataset is not random enough, and the network overfits on the structure of the dataset. Happens with buffer_size dramatically less then the size of the structured dataset.