serhii.net

Taskwarrior modifier .isnt for “not equal”

Edited my “someday” report:

report.sd.filter=status:pending sprint:s sprint.isnt:srv

sprint:s seems to catch srv too, which I don’t want. Not anymore. Also Taskwarrior - FAQ is the list of such modifiers.

Attribute modifiers make filters more precise.  Supported modifiers are:

  Modifiers         Example            Equivalent           Meaning
  ----------------  -----------------  -------------------  -------------------------
                    due:today          due = today          Fuzzy match
  not               due.not:today      due != today         Fuzzy non-match
  before, below     due.before:today   due < tomorrow       Exact date comparison
  after, above      due.after:today    due > tomorrow       Exact date comparison
  none              project.none:      project == ''        Empty
  any               project.any:       project !== ''       Not empty
  is, equals        project.is:x       project == x         Exact match
  isnt              project.isnt:x     project !== x        Exact non-match
  has, contains     desc.has:Hello     desc ~ Hello         Pattern match
  hasnt,            desc.hasnt:Hello   desc !~ Hello        Pattern non-match
  startswith, left  desc.left:Hel      desc ~ '^Hel'        Beginning match
  endswith, right   desc.right:llo     desc ~ 'llo$'        End match
  word              desc.word:Hello    desc ~ '\bHello\b'   Boundaried word match
  noword            desc.noword:Hello  desc !~ '\bHello\b'  Boundaried word non-match

Intellij idea

In intellij idea you can set more options for each breakpoint after right-clicking on it; especially “disable until breakpoint X is hit”, where X can be disabled.

Keras2 eager execution

.. is not there by default all the time; the hard-to-find answer for this is adding model.run_eagerly=True after model.compile().

Tensorflow / python Dataset iterator

Of course, the following also works:

[x[1][1]['mycast'] for x in dataset.enumerate(5).__iter__()]

Tensorflow padding

… add what you tell it to add, even if you’ve use tf.one_hot() on the data before. Then you get weird zeros in the result of the one hot encoding.

Moving to a new apt

Ausstattung für die erste eigene Wohnung - Checkliste is a nice checklist :)

Tensorflow gradient propagation

• ValueError: No gradients provided for any variable in Tensorflow - Stack Overflow

When you do annotation_pred = tf.to_float(tf.argmax(out, dimension=4, name='prediction')), you get an index of the max value in your tensor. This index can’t be derivated, thus the gradient can’t flow throught this operation.

So as your loss is only defined by this value, and the gradient can’t flow throught it, no gradient can be calculated for your network.

Argmax is okay if I don’t calculate my loss through it.

Python / Numpy ellipsis (…)

• Cookbook/Indexing - SciPy wiki dump

The ellipsis (three dots) indicates “as many ‘:’ as needed” This makes it easy to manipulate only one dimension of an array, letting numpy do array-wise operations over the “unwanted” dimensions. You can only really have one ellipsis in any given indexing expression, or else the expression would be ambiguous about how many ‘:’ should be put in each.

English vocabulary

• glib - superficial, shallow, persuasive but insincere in nature.
• retrodict - Wiktionary - to attempt to estimate the previous state from the present.
  • Also interesting is postdiction - Wiktionary, the construction of past conditions by relying on the present.

German RE / AW

Outlook. What is the meaning of “AW” in an email header? – AW == RE in most other languages

Intellij ideavim toggle case

Added the following to .ideavimrc: map <leader>c :action EditorToggleCase<CR>

Tensorflow

Using ‘categorical_crossentropy’ instead of ‘sparse_categorical_crossentropy’, give weird unintuitive errors

ML / NER / Stack / To read

This is a really nice tutorial with the basics that’s not too basic: Sequence Tagging with Tensorflow

Tensorflow metrics ignored if loss doesn’t get defined

So I don’t forget, Metrics ignored when using model.add_loss() (like in VAE example) · Issue #9459 · keras-team/keras · GitHub currently happens.

Keras

• GitHub - fchollet/keras-resources: Directory of tutorials and open-source code repositories for working with Keras, the Python deep learning library

Tensorflow GloVe embeddings

• TensorFlow 07: Word Embeddings (2) – Loading Pre-trained Vectors – Night Cáfe

Intellij IDEA vim plugin

It supports the following :set commands: ideavim/set-commands.md at master · JetBrains/ideavim · GitHub. Especially relativenumbers is nice.

• switch to split screen in IntelliJ (ideaVim) - Stack Overflow for windows splits – Ctrl + ww for quickly changing between splits.
• :source ~/.ideavimrc works.
• vim - Escape to IntelliJ IDEA shortcuts from IdeaVim - Stack Overflow some neat escaped IdeaVim shortcuts

apt-get purge and zsh

zsh does its own wildcard stuff, and apt-get purge nvidia* doesn’t work because of this. apt-get purge nvidia\* does (or with ‘’s). Same story as with scp, I’m surprised I keep having issues with this.

Linux see history of apt-get

• /var/log/apt/history/ contains the last one and the rotated gzipped old ones.
• How do I show apt-get package management history via command line? - Ask Ubuntu. The gzipped ones can be read by…

Linux z-commands (zcat, zless, zgrep, zdiff)

• Unix Z Commands – Zcat, Zless, Zgrep, Zegrep and Zdiff Examples

Pandas

• python - Pandas split column of lists into multiple columns - Stack Overflow

English Pronunciation

Google has nice animations for this!

• Query = [kwee ree]
• Paradigm = [pa ruh daim] or American [peh ruh daim]

Linear algebra

I’ll be following this: 9.1. Attention Mechanism — Dive into Deep Learning 0.7 documentation

• Inner product is the generalization of the dot product. Result is a scalar. ¹

Python assert statement

UsingAssertionsEffectively - Python Wiki assert condition, message -> if condition is false, it returns an AssertionError.