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Combined display of all available logs of Helpful. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).
- 01:41, 18 February 2024 Helpful talk contribs created page Static methods (Redirected page to Instance methods, static methods, class methods) Tag: New redirect
- 01:41, 18 February 2024 Helpful talk contribs moved page Instance method, static method, class method to Instance methods, static methods, class methods
- 01:41, 18 February 2024 Helpful talk contribs moved page Static method to Instance method, static method, class method
- 01:40, 18 February 2024 Helpful talk contribs created page Static method (Created page with "<!-- For context, most functions defined on a class will be considered '''instance methods''': they will work on an instance of that same class. Calling them will always take. (exactly how explicitly it is in the ''definition'' of this function may vary with the language) They will accept one, and do so implicitly somehow - some languages make you write out the object reference ('self' or 'this' turns up around here), others have it implied. That is not the only...")
- 17:21, 17 February 2024 Helpful talk contribs created page Yubikey (Redirected page to Security notes / Identification, authentication, authorization#Yubikey) Tag: New redirect
- 17:21, 17 February 2024 Helpful talk contribs created page Yubico (Redirected page to Security notes / Identification, authentication, authorization#Yubikey) Tag: New redirect
- 14:41, 17 February 2024 Helpful talk contribs created page Composite Document File (Redirected page to Office document formats) Tag: New redirect
- 15:50, 16 February 2024 Helpful talk contribs created page Turtle (Redirected page to Knowledge representation / Semantic annotation / structured data / linked data on the web#Notation3 (Notation 3, N3), Turtle, N-Triples) Tag: New redirect
- 15:47, 16 February 2024 Helpful talk contribs created page Ttl (Created page with "In electronics, TTL refers to a way of doing logic in circuits : historically, Transistor-Transistor Logic (transistors perform both the logic as well as any amplfication) replaced earlier styles, mostly [https://en.wikipedia.org/wiki/Resistor%E2%80%93transistor_logic resistor–transistor logic] and [https://en.wikipedia.org/wiki/Diode%E2%80%93transistor_logic diode–transistor logic] : practically often just means "logic at 5V" :: which now is often in contrast wit...")
- 14:48, 16 February 2024 Helpful talk contribs changed visibility of 386 revisions on page DIY, craft, materials, and such / Household and DIY substances: content hidden
- 11:08, 16 February 2024 Helpful talk contribs created page Nethogs (Redirected page to Network tools#Watching traffic) Tag: New redirect
- 11:06, 16 February 2024 Helpful talk contribs changed visibility of 105 revisions on page Python notes - strings, unicode, encodings: content hidden
- 01:21, 16 February 2024 Helpful talk contribs changed visibility of 153 revisions on page HTTP notes: content hidden
- 21:30, 15 February 2024 Helpful talk contribs changed visibility of 4 revisions on page Hypercorrection, hypocorrection: content hidden
- 18:15, 15 February 2024 Helpful talk contribs moved page Office Document formats to Office document formats
- 18:15, 15 February 2024 Helpful talk contribs moved page Document formats to Office Document formats
- 18:15, 15 February 2024 Helpful talk contribs created page Document formats (Created page with "<!-- {{stub}} * MS Word between 97 through 2003 (and most formats from Microsoft Office 97-2003) :: has varied names - Composite Document file, Structured Storage, Compound File Binary Format (CFBF) or Compound Document File Format, and OLE2 seems related? :: file extensions: .doc for word processing, .xls :: MIME: application/msword, application/vnd.ms-excel ? :: which resembles a FAT filesystem internally :: https://en.wikipedia.org/wiki/Compound_File_Binary_Format...")
- 13:52, 15 February 2024 Helpful talk contribs created page Caveat (Created page with "<!-- Caveat - "may you beware of" In general, "with a caveat" is used to mean "has a footnote". Caveat emptor - loosely translated as 'buyer beware' - you are Caveat lector - 'reader beware' - often a "don't believe everyting you read" -->")
- 11:39, 15 February 2024 Helpful talk contribs changed visibility of 109 revisions on page Python usage notes - PIL: content hidden
- 22:45, 14 February 2024 Helpful talk contribs created page OSI (Redirected page to Networking notes - General#Layer models) Tag: New redirect
- 21:49, 14 February 2024 Helpful talk contribs changed visibility of 39 revisions on page Locking, data versioning, concurrency, and larger-scale computing notes: content hidden
- 21:49, 14 February 2024 Helpful talk contribs changed visibility of 250 revisions on page Locking, data versioning, concurrency, and larger-scale computing notes: content hidden
- 17:21, 14 February 2024 Helpful talk contribs created page Kernel panic (Created page with "<!-- A kernel panic happens when the kernel (the core of the OS) notices that something has happened that makes it impossible to continue, or just too risky in terms of data corruption. It will choose to halt the system. Depending on configuration, it may or may not reboot. Technically this is distinct from the kernel itself crashing ''without'' noticing. there is probably a history to why the unix-side of things chose this name, presumably because it wasn't a...")
- 16:42, 14 February 2024 Helpful talk contribs created page Security notes / pre-boot authentication (Created page with "<!-- The aim of pre-boot authentication (PBA) is to provide an environment to the OS we are booting that we can reasonably say has not been tampered with. The way of doing that varies. How far into boot that reaches varies. Even the ''types'' of guarantees vary. PBA can refer to "am I being accessed by the same person" and/or "am I running on the same hardware", which is part of why it's confusing as hell. Consider for example: * classical full-disk encryption...")
- 15:00, 13 February 2024 Helpful talk contribs created page Argmax (Created page with "{{stub}} ArgMax is the maximum value a function takes under given constraints. In mathematics, with contonuous functions, this might involve some symbolic analysis and manipulation, In computation, with discrete values, it may just amount to "go through array and remember the largest value you saw" https://en.wikipedia.org/wiki/Arg_max")
- 10:03, 9 February 2024 Helpful talk contribs created page Grounded (Redirected page to Grounding) Tag: New redirect
- 15:09, 8 February 2024 Helpful talk contribs created page Flow control (Created page with "<!-- Flow control is the idea is that the receiving side can pause the sending side. Perhaps the easier to understand form is '''hardware flow control''', because these are often dedicated things separated from the transfer (out of band). For example, in a parallel ports, e.g. a printer can assert the busy pin, and the sending side will choose to pause sending until that clears. In in serial ports there is a similar construction: the sender sets RTS to signal th...")
- 12:26, 4 February 2024 Helpful talk contribs created page QC3 (Redirected page to USB notes#Power and charging before USB-C) Tag: New redirect
- 04:16, 4 February 2024 Helpful talk contribs changed visibility of 69 revisions on page UUID, GUID notes: content hidden
- 04:16, 4 February 2024 Helpful talk contribs changed visibility of 275 revisions on page Security notes / Hashing notes: content hidden
- 00:15, 3 February 2024 Helpful talk contribs changed visibility of 25 revisions on page Electronics project notes/Unsorted: content hidden
- 00:14, 3 February 2024 Helpful talk contribs changed visibility of 395 revisions on page Text coding: content hidden
- 00:14, 3 February 2024 Helpful talk contribs changed visibility of 71 revisions on page Music - studio and stage notes: content hidden
- 00:12, 3 February 2024 Helpful talk contribs changed visibility of 21 revisions on page Screensaver notes: content hidden
- 00:09, 3 February 2024 Helpful talk contribs changed visibility of 444 revisions on page Intellectual Property, Copyright, and related rights: content hidden
- 00:07, 3 February 2024 Helpful talk contribs changed visibility of 95 revisions on page D3 notes: content hidden
- 00:06, 3 February 2024 Helpful talk contribs changed visibility of 206 revisions on page Computer data storage - Failure, error, and how to deal: content hidden
- 00:05, 3 February 2024 Helpful talk contribs changed visibility of 167 revisions on page Electronics notes/Knobs and dials: content hidden
- 00:04, 3 February 2024 Helpful talk contribs changed visibility of 244 revisions on page Webpage performance notes: content hidden
- 12:29, 2 February 2024 Helpful talk contribs created page Tempfile (Redirected page to Python notes - semi-sorted#Temporary files) Tag: New redirect
- 23:58, 1 February 2024 Helpful talk contribs changed visibility of 16 revisions on page Articulation: content hidden
- 22:22, 1 February 2024 Helpful talk contribs created page TLV (Created page with " <!-- Type–length–value is a way of laying out a file that contains many things, namely as a series of chunks that are * type of the next chunk * length of that data that follows * that data This is * fast to seek through :: in that you can seek forward that length, and ''know'' you are on the next chunk. * extensible :: in the sense that any reader, faced with a chunk type they do not know, can just ignore and skip it It puts memory of its rules in user.rules...")
- 19:03, 1 February 2024 Helpful talk contribs changed visibility of 150 revisions on page Video format notes: content hidden
- 00:27, 1 February 2024 Helpful talk contribs changed visibility of 46 revisions on page Electronics project notes/Arduino and AVR notes: content hidden
- 00:26, 1 February 2024 Helpful talk contribs changed visibility of 50 revisions on page Electronics project notes/Arduino and AVR notes: content hidden
- 00:26, 1 February 2024 Helpful talk contribs changed visibility of 250 revisions on page Electronics project notes/Arduino and AVR notes: content hidden
- 18:02, 31 January 2024 Helpful talk contribs created page N-grams (Redirected page to Data modeling, restructuring, and massaging#N-gram notes) Tag: New redirect
- 16:52, 31 January 2024 Helpful talk contribs changed visibility of 17 revisions on page Statistics notes - on random variables, distributions, probability: content hidden
- 16:51, 31 January 2024 Helpful talk contribs changed visibility of 141 revisions on page DIY electronic drumkit notes: content hidden
- 16:46, 31 January 2024 Helpful talk contribs changed visibility of 70 revisions on page DIY electronic drumkit notes: content hidden
- 16:37, 31 January 2024 Helpful talk contribs deleted page Legal (content was: "#redirect Legal and government data notes", and the only contributor was "Helpful" (talk))
- 16:35, 31 January 2024 Helpful talk contribs changed visibility of 435 revisions on page Git notes: content hidden
- 16:31, 31 January 2024 Helpful talk contribs changed visibility of 49 revisions on page Python notes - XML: content hidden
- 16:31, 31 January 2024 Helpful talk contribs changed visibility of 73 revisions on page Python notes - XML: content hidden
- 16:30, 31 January 2024 Helpful talk contribs changed visibility of 51 revisions on page Python decorator notes: content hidden
- 16:30, 31 January 2024 Helpful talk contribs changed visibility of 37 revisions on page Polylines and splines, curves, interpolation, resampling, easing: content hidden
- 16:29, 31 January 2024 Helpful talk contribs changed visibility of 402 revisions on page Data modeling, restructuring, analysis, fuzzy cases, learning: content hidden
- 16:27, 31 January 2024 Helpful talk contribs changed visibility of 84 revisions on page GPU, GPGPU, OpenCL, CUDA notes: content hidden
- 16:26, 31 January 2024 Helpful talk contribs created page Trademarks (Redirected page to Intellectual Property, Copyright, and related rights#IP.27s practical concepts) Tag: New redirect
- 16:25, 31 January 2024 Helpful talk contribs changed visibility of 3 revisions on page Genericised trademark: content hidden
- 16:23, 31 January 2024 Helpful talk contribs changed visibility of 26 revisions on page Locate: content hidden
- 16:22, 31 January 2024 Helpful talk contribs changed visibility of 7 revisions on page Memory mapped IO and files: content hidden
- 16:22, 31 January 2024 Helpful talk contribs changed visibility of 36 revisions on page Computer booting: content hidden
- 16:20, 31 January 2024 Helpful talk contribs created page Component returned failure code: 0x80040111 (Redirected page to Some explanation to some errors and warnings#0x80040111 (NS ERROR NOT AVAILABLE)) Tag: New redirect
- 16:10, 31 January 2024 Helpful talk contribs created page Terminal status (Redirected page to Text terminals#terminal status / hardstatus) Tag: New redirect
- 16:10, 31 January 2024 Helpful talk contribs created page Status line (Redirected page to Text terminals#terminal status / hardstatus) Tag: New redirect
- 16:10, 31 January 2024 Helpful talk contribs created page Hardstatus (Redirected page to Text terminals#terminal status / hardstatus) Tag: New redirect
- 13:17, 30 January 2024 Helpful talk contribs created page Cryptographic hash (Redirected page to Security notes / Hashing notes#.22cryptographic hash function.22) Tag: New redirect
- 23:20, 29 January 2024 Helpful talk contribs changed visibility of 76 revisions on page Electronics project notes/Arduino and AVR notes: content hidden
- 23:19, 29 January 2024 Helpful talk contribs changed visibility of 66 revisions on page Electronics notes/Knobs and dials: content hidden
- 23:18, 29 January 2024 Helpful talk contribs changed visibility of 76 revisions on page Electronics notes/Transistors: content hidden
- 23:17, 29 January 2024 Helpful talk contribs changed visibility of 27 revisions on page Electronics notes/Inductors and transformers: content hidden
- 23:16, 29 January 2024 Helpful talk contribs changed visibility of 428 revisions on page Electronics notes/Various wireless notes: content hidden
- 00:31, 25 January 2024 Helpful talk contribs created page File:Gel filled connector.jpg
- 00:31, 25 January 2024 Helpful talk contribs uploaded File:Gel filled connector.jpg
- 00:26, 24 January 2024 Helpful talk contribs created page WAL (Redirected page to Data consistency and versioning, and its concepts#Journaling) Tag: New redirect
- 15:22, 23 January 2024 Helpful talk contribs created page Syntax-fu (Created page with "{{programming}} What people usually mean with syntax-fu is clever expressions. ...often overly compact things you will not be able to remember the reasoning for later. In the name of maintainability, such compactness is ''generally'' discouraged, in favour of a more verbose-but-more-readable style, especially if that is no less efficient yo execute.")
- 03:32, 23 January 2024 Helpful talk contribs changed visibility of 22 revisions on page Web generation-y numbers: content hidden
- 03:32, 23 January 2024 Helpful talk contribs changed visibility of 51 revisions on page C and C++ notes / Types, values, some basic libraries: content hidden
- 03:32, 23 January 2024 Helpful talk contribs changed visibility of 57 revisions on page C and C++ notes / Syntax notes: content hidden
- 03:31, 23 January 2024 Helpful talk contribs changed visibility of 4 revisions on page C and C++ notes / Errors: content hidden
- 03:31, 23 January 2024 Helpful talk contribs changed visibility of 14 revisions on page C and C++ notes / Semi-sorted: content hidden
- 03:30, 23 January 2024 Helpful talk contribs changed visibility of 9 revisions on page C and C++ notes / Structuring: content hidden
- 01:52, 23 January 2024 Helpful talk contribs changed visibility of 7 revisions on page Template:Hosting stuff: content hidden
- 01:52, 23 January 2024 Helpful talk contribs changed visibility of 62 revisions on page Template:Avnotes: content hidden
- 01:51, 23 January 2024 Helpful talk contribs changed visibility of 16 revisions on page Electronics notes/signal reflection: content hidden
- 01:51, 23 January 2024 Helpful talk contribs changed visibility of 25 revisions on page Font notes: content hidden
- 00:59, 23 January 2024 Helpful talk contribs changed visibility of 32 revisions on page Computer task switching from an analogy perspective: content hidden
- 00:59, 23 January 2024 Helpful talk contribs changed visibility of 77 revisions on page NFS notes: content hidden
- 20:34, 22 January 2024 Helpful talk contribs changed visibility of 50 revisions on page Language units large and small: content hidden
- 19:04, 22 January 2024 Helpful talk contribs changed visibility of 89 revisions on page Command line and bash notes: content hidden
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- 19:00, 22 January 2024 Helpful talk contribs changed visibility of 100 revisions on page Command line and bash notes: content hidden
- 19:00, 22 January 2024 Helpful talk contribs changed visibility of 77 revisions on page Command line and bash notes: content hidden
- 19:00, 22 January 2024 Helpful talk contribs changed visibility of 2 revisions on page Command line and bash notes: content unhidden
- 18:59, 22 January 2024 Helpful talk contribs changed visibility of 2 revisions on page Command line and bash notes: content hidden
- 18:59, 22 January 2024 Helpful talk contribs changed visibility of 5 revisions on page Linux user notes: content hidden
- 18:58, 22 January 2024 Helpful talk contribs changed visibility of 239 revisions on page Shell login - profiles and scripts: content hidden
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- 18:58, 22 January 2024 Helpful talk contribs changed visibility of 17 revisions on page Screen and tmux: content hidden
- 18:57, 22 January 2024 Helpful talk contribs changed visibility of 100 revisions on page Screen and tmux: content hidden
- 18:57, 22 January 2024 Helpful talk contribs changed visibility of 79 revisions on page Screen and tmux: content hidden
- 18:57, 22 January 2024 Helpful talk contribs changed visibility of 63 revisions on page Computer data storage - Partitioning and filesystems: content hidden
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- 18:55, 22 January 2024 Helpful talk contribs changed visibility of 9 revisions on page Isolating shell and/or package environments: content hidden
- 18:55, 22 January 2024 Helpful talk contribs changed visibility of 100 revisions on page Isolating shell and/or package environments: content hidden
- 18:55, 22 January 2024 Helpful talk contribs changed visibility of 74 revisions on page Isolating shell and/or package environments: content hidden
- 18:54, 22 January 2024 Helpful talk contribs changed visibility of 45 revisions on page Linux admin notes - users and permissions: content hidden
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- 18:53, 22 January 2024 Helpful talk contribs changed visibility of 71 revisions on page Systemd notes: content hidden
- 18:53, 22 January 2024 Helpful talk contribs changed visibility of 5 revisions on page Linux admin notes - kernel modules: content hidden
- 18:53, 22 January 2024 Helpful talk contribs changed visibility of 19 revisions on page YP / NIS / NIS+ notes: content hidden
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- 18:52, 22 January 2024 Helpful talk contribs changed visibility of 35 revisions on page Firewalling and other packet stuff: content hidden
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- 18:47, 22 January 2024 Helpful talk contribs changed visibility of 2 revisions on page Something taking 100% CPU on windows: content hidden
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- 18:44, 22 January 2024 Helpful talk contribs changed visibility of 9 revisions on page Constness: content hidden
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- 18:44, 22 January 2024 Helpful talk contribs changed visibility of 2 revisions on page Garbage collection: content hidden
- 18:44, 22 January 2024 Helpful talk contribs changed visibility of 76 revisions on page Python notes - semi-sorted: content hidden
- 18:44, 22 January 2024 Helpful talk contribs changed visibility of 12 revisions on page C and C++ notes / Versions and variations: content hidden
- 18:43, 22 January 2024 Helpful talk contribs changed visibility of 13 revisions on page Programming in teams, working on larger systems, keeping code healthy: content hidden
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- 18:37, 22 January 2024 Helpful talk contribs changed visibility of 12 revisions on page Electronics notes/Electricity and humans: content hidden
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- 18:36, 22 January 2024 Helpful talk contribs changed visibility of 4 revisions on page Diaresis, trema, umlaut: content hidden
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- 16:59, 21 January 2024 Helpful talk contribs created page Varied databases (Redirected page to Broad qualifiers, a.k.a. thinking about what you want from your database) Tag: New redirect
- 16:53, 21 January 2024 Helpful talk contribs created page SQLite notes (Created page with " For some introduction, see [[]] <!-- '''Text coding''' SQLite defaults to assumes UTF-8. The C library does not ''verify'' it's valid, though. Behaviour may well depend on the library you use. For example, python's sqlite3 will * convert unicode strings to UTF-8 (py2 and py3) {{verify}} * it seems ** py2 sent str (its bytestrings) as-is (and since the library didn't check, you better hope it was valid UTF-8) {{verify}} ** and py3's bytes going to text fields isn...")
- 19:36, 20 January 2024 Helpful talk contribs deleted page SQLite notes (content was: "#redirect Varied databases#SQLite_notes", and the only contributor was "Helpful" (talk))
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- 17:27, 20 January 2024 Helpful talk contribs created page Distribution (Redirected page to Statistics notes - on random variables, distributions, probability) Tag: New redirect
- 17:27, 20 January 2024 Helpful talk contribs created page Bimodal (Created page with " Bimodal describes a distribution that seems to be a mixture of two basic distributions Examples often use two gaussian-ish humps, in part to point out these are not strictly separable while still being useful to us. Pointing out that something is bimodal often comes up in cases where it's convenient to simplify into something with two distinct, clearly separated cases, and more so in cases where that is a simplification with problems.")
- 16:53, 20 January 2024 Helpful talk contribs created page Sqlite3 (Redirected page to Some databases, sorted by those types#SQLite notes) Tag: New redirect
- 16:31, 20 January 2024 Helpful talk contribs created page Oom-killer (Redirected page to Virtual memory#oom kill) Tag: New redirect
- 16:31, 20 January 2024 Helpful talk contribs created page Oom-kill (Redirected page to Virtual memory#oom kill) Tag: New redirect
- 16:31, 20 January 2024 Helpful talk contribs created page Userspace (Created page with "Userspace / user space means 'done as a regular program'. It is contrasted with kernel space We tend to use this term when it may also be reasonable to do the thing in the kernel 'space' refers more to to memory space, e.g. where things are ''stored'', but it is often implied things are also ''computed'' in the same place (as the kernel, versus as a user). Programs are mostly userspace, while e.g. syscalls go into kernel space (almost the definition of a sysca...")
- 16:30, 20 January 2024 Helpful talk contribs deleted page Bs4 (content was: "#redirect Webpage_scraping_notes#BeautifulSoup", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page Beautifulsoup (content was: "#redirect Webpage_scraping_notes#BeautifulSoup", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page Selenium notes (content was: "#REDIRECT Webpage scraping notes", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page Legal data notes (content was: "#REDIRECT Legal and government data notes", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page ECLI (content was: "#redirect Legal_and_government_data_notes#glossary_e", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page ZBO (content was: "#redirect Legal and government data notes#glossary_z", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page Eur-lex (content was: "#redirect Legal_and_government_data_notes#EUR-Lex", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page Jci (content was: "#redirect Legal_and_government_data_notes#Juriconnect/jci", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page Juriconnect (content was: "#redirect Legal_and_government_data_notes#Juriconnect/jci", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page BWB (content was: "#redirect Legal_and_government_data_notes#glossary_b", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page Intitule (content was: "#redirect Legal_and_government_data_notes#glossary_i", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page LJN (content was: "#redirect Legal_and_government_data_notes#glossary_l", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page HUDOC (content was: "#redirect Legal_and_government_data_notes#HUDOC", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page Eurlex (content was: "#redirect Legal_and_government_data_notes#EUR-Lex", and the only contributor was "Helpful" (talk))
- 16:30, 20 January 2024 Helpful talk contribs deleted page Eur lex (content was: "#redirect Legal_and_government_data_notes#EUR-Lex", and the only contributor was "Helpful" (talk))
- 16:19, 20 January 2024 Helpful talk contribs created page Some databases, sorted by those types (Created page with "{{Database related}} ==File databases== Not a model but a practicality: File databases are useful to persist and store moderately structured data on disk, : often storing many items in one (or a few files) : usually accessible via a single, simple library - meaning they are also considered an embedded database There is typically also some way to alter that data in terms of its items (rather than, as in serialization, the whole thing at once), which ''may'' be li...")
- 16:19, 20 January 2024 Helpful talk contribs created page Data consistency and versioning, and its concepts (Created page with "{{Database related}} ====ACID==== {{stub}} ACID (Atomic, Consistent, Isolated, Durable) is a set of properties you want to guarantee that the data it shows you is correct and consistent and up to date ''at all times''. 'ACID compliant' an be intuited as 'a guarantee that my data is safe and correct'. For a large part, that is about how a sequence of interactions is handled, in particular : dealing with sequences of statements that must be applied all together, or n...")
- 16:18, 20 January 2024 Helpful talk contribs created page Database model types (Created page with "{{Database related}} ===Block store=== Block stores are access a ''large'' series of bytes, in moderately-sized blocks at a time. It's the most 'do everything yourself' variant of storage. There are almost no use cases where users or services want a block device directly. Yes, in theory some specific servers might be more efficient doing their own management of their very specific specific data structures on disk - but many of those choose to use large files the sam...")
- 16:17, 20 January 2024 Helpful talk contribs created page Broad qualifiers, a.k.a. thinking about what you want from your database (Created page with "{{Database related}} ===OLTP, OLAP=== tl;dr: * OLTP basically means systems with ''immediacy'', OLAP often means bulk/batch processing * Systems can be made to do both to some degree, but OLTP often comes with people wanting it to be as immediate as possible * RDBMSes are mostly used for OLTP, NoSQL has less opinion about how it's used You'll see these two as qualifiers, as kinds of setups, and sometimes as specializations of specific kinds of systems/databases....")
- 16:59, 18 January 2024 Helpful talk contribs created page Degit (Redirected page to Git notes#degit) Tag: New redirect
- 16:54, 16 January 2024 Helpful talk contribs created page CSPRNG (Redirected page to Randomness#CSPRNG) Tag: New redirect
- 16:53, 16 January 2024 Helpful talk contribs created page PRNG (Redirected page to Randomness#PRNG) Tag: New redirect
- 13:16, 16 January 2024 Helpful talk contribs created page Replay attack (Redirected page to Security notes / some flaw/exploit notes#Replay attacks) Tag: New redirect
- 21:10, 15 January 2024 Helpful talk contribs created page TCP handshake (Redirected page to Networking notes - Layer 3 (IP mostly)#TCP handhake) Tag: New redirect
- 21:10, 15 January 2024 Helpful talk contribs created page Three-way handshake (Redirected page to Networking notes - Layer 3 (IP mostly)#TCP handhake) Tag: New redirect
- 21:08, 15 January 2024 Helpful talk contribs created page Syn flood (Redirected page to Networking notes - Layer 3 (IP mostly)#TCP: Possible SYN flooding on port 80. Sending cookies) Tag: New redirect
- 16:46, 15 January 2024 Helpful talk contribs created page Linear serpentine (Redirected page to Magnetic media notes#Linear serpentine) Tag: New redirect
- 13:26, 15 January 2024 Helpful talk contribs created page Epoll (Redirected page to File polling, event notification, and asynchronous IO#epoll) Tag: New redirect
- 01:55, 14 January 2024 Helpful talk contribs created page Link preview bots (Created page with "<!-- Some SEO analysis on social sites noticed that adding a nice image to to a link often makes it more likely to be clicked. So now we're previewing ''everything''. Aside from maybe missing some of the original point (link previews were larger and harder to miss than bare links, but if they're all the same, they just clutter up the place) it also means every social site will request every page that someone links to, for metadata and possibly for images on it. Or,...")
- 15:31, 11 January 2024 Helpful talk contribs moved page Security notes / some attack notes to Security notes / some flaw/exploit notes
- 17:16, 10 January 2024 Helpful talk contribs created page Zigbee (Redirected page to Electronics notes/Various wireless notes#ZigBee specific notes) Tag: New redirect
- 17:16, 10 January 2024 Helpful talk contribs created page Home automation / smartness (Created page with " ==Home Assistant== ==Communication== <!-- Things are generally Wifi, Bluetooth, or Zigbee. '''WiFi''' is moderate range : a little more initial setup : you likely have WiFi anyway : phones speak it, but it's not guaranteed to work directly :: ...so this tends to still be a cloudy thing : protocol often proprietary '''Bluetooth''', is more private, but is regularly a little more finicky, also because it is often shorter range than WiFi. : phones speak it, but ne...")
- 23:00, 9 January 2024 Helpful talk contribs created page Dmesg (Created page with "<!-- dmesg is a fixed-size ringbuffer in linux kernel memory. printk() writes to dmesg Boot code writes a bunch to it. Later writes come from things like segfaults, oom-killer, device changes, Ringbuffer means that once full, it rewrites old lines. That fixed '''size''' is usually on the order of dozens to hundreds of kilobytes. If grep CONFIG_LOG_BUF_SHIFT /boot/config-`uname -r` says something like CONFIG_LOG_BUF_SHIFT=18 that means 256KiB (1<<18)...")
- 01:17, 9 January 2024 Helpful talk contribs created page WS2812c (Redirected page to Electronics notes/Diodes#LED pixel strings) Tag: New redirect
- 18:56, 8 January 2024 Helpful talk contribs created page XPath (Redirected page to XML notes#XPath notes) Tag: New redirect
- 18:55, 8 January 2024 Helpful talk contribs created page Xpath (Redirected page to XML notes#XPath notes) Tag: New redirect
- 13:35, 8 January 2024 Helpful talk contribs created page Schematron (Redirected page to XML notes#Related - XSLT, XPath, XQuery, XSL-FO, XSL, etc.) Tag: New redirect
- 00:10, 8 January 2024 Helpful talk contribs created page Glow in the dark (Redirected page to Luminescence) Tag: New redirect
- 23:40, 7 January 2024 Helpful talk contribs created page Push messages (Created page with "<!-- '''Push messages''' are mainly contrasted with polling. tl;dr: * Where polling is an interested party checking an intereting thing with regularity, push messages is an interesting party asking the interesting side to send them a message * while push and pull suggest direction, it's primarily about the initator Polling usually refers to regularly checking in whether anything has changed or happened. When you poll more than a few things, the overhead alone...")
- 13:55, 7 January 2024 Helpful talk contribs created page Push notification (Redirected page to Push messages) Tag: New redirect
- 19:01, 6 January 2024 Helpful talk contribs created page Screen scraping (Created page with "{{scraping}}")
- 17:05, 6 January 2024 Helpful talk contribs created page A/B testing (Created page with "<!-- A/B testing test two variants (A and B), usually showing just one to members of a population (often with a 50-50 split). It usually amounts to statistical hypothesis testing - vary one thing in what you show to people, and who complains less, clicks away less, etc. The setup and analysis can get complex - try to improve engagement metrics ''while'' trying to not affect use experience metrics, vary many different things, etc. ...but each test is usually fairly s...")
- 16:04, 6 January 2024 Helpful talk contribs created page Compound verb (Redirected page to Syntactic and lexical categories#Compound verb) Tag: New redirect
- 15:48, 6 January 2024 Helpful talk contribs changed visibility of 79 revisions on page Syntactic and lexical categories: content hidden, edit summary hidden and username hidden
- 14:38, 6 January 2024 Helpful talk contribs created page Popcorn noise (Redirected page to Stray signals and noise#Impulse noise, burst noise) Tag: New redirect
- 18:32, 5 January 2024 Helpful talk contribs created page Syscall (Created page with "<!-- A syscall refers to when a program asks not a library it's running, or another process, but asks the system itself. This usually refers to * services that only really the OS/kernel should be providing (new processes, scheduling processes). * ...or to ones that aren't ''only'' its domain, but that it still ''does'' provide, like a lot of disk and filesystem related stuff. In theory, there isn't a lot that you couldn't do yourself, without the kernel, but it...")
- 18:26, 5 January 2024 Helpful talk contribs moved page Stat to Stat syscall
- 01:40, 5 January 2024 Helpful talk contribs created page Wireguard (Redirected page to More technical VPN notes#Underlying) Tag: New redirect
- 20:51, 4 January 2024 Helpful talk contribs created page ESP-NOW (Created page with "<!-- ESP-NOW is a simple protocol that uses the ESP's WiFi radio (It coexists with the WiFi stack, also if active), meaning it works regardless of there being an AP involved. also meaning Some explanations mention that you pair with a peer, after which it will automatically recover after restart. ...which seems to be a nice way of saying "you need to send to a specific MAC you have to know and will probably hardcode" There is also a note that you can actually us...")
- 18:01, 4 January 2024 Helpful talk contribs created page WS2801 (Redirected page to Electronics notes/Diodes#LED pixel strings) Tag: New redirect
- 16:42, 2 January 2024 Helpful talk contribs created page Influxdb notes (Created page with "=====Data model notes===== {{stub}} In comparison to a more relational view... * '''database''' is a logical container for :: users :: retention policies :: time series data :: continuous queries * '''retention policy''' (RP) contain: :: '''replication factor''' (copies kept in the cluster) (autogen's default is 1) :: '''retention''' - how long to keep the data (min 1h) (autogen's default is infinite) :: '''shard group duration''' - how much data is stored in shards...")
- 16:39, 2 January 2024 Helpful talk contribs created page Template:Filename (Created page with "<tt title="filename" style="display:inline !important; background-color: #eee; border-top:1px solid #ccc; border-bottom:1px solid #ccc;">{{{1}}}</tt>")
- 23:54, 1 January 2024 Helpful talk contribs created page Ws2811 (Redirected page to Electronics notes/Diodes#LED pixel strings) Tag: New redirect
- 23:36, 1 January 2024 Helpful talk contribs created page Bluetooth 5 LE (Redirected page to Various wireless notes#Versions and speed) Tag: New redirect
- 22:27, 1 January 2024 Helpful talk contribs created page Data class (Created page with "<!-- A data class is an OO term, indicating for which objects are there to hold data. Only. They will not contain code to alter/manage that data. There might be code at all, such as * "copy this to equivalent new object""is this equivalent?" * "hash based on contents", * "print this in a standard way" ...which might all be automatically generated. Depending on the language, you might be able to declare these in an unusual way to avoid writing all of those, and/or a...")
- 17:14, 30 December 2023 Helpful talk contribs created page Souce NAT (Redirected page to Networking notes - Layer 3 (IP mostly)#NAT) Tag: New redirect
- 17:10, 30 December 2023 Helpful talk contribs created page STUN (Redirected page to Networking notes - Layer 3 (IP mostly)#STUN, TURN, ICE) Tag: New redirect
- 17:10, 30 December 2023 Helpful talk contribs created page TURN (Redirected page to Networking notes - Layer 3 (IP mostly)#STUN, TURN, ICE) Tag: New redirect
- 14:43, 30 December 2023 Helpful talk contribs created page STUN, TURN, ICE (Redirected page to Networking notes - Layer 3 (IP mostly)#STUN, TURN, ICE) Tag: New redirect
- 14:35, 30 December 2023 Helpful talk contribs created page Webrtc (Redirected page to Javascript notes - browser related, APIs#WebRTC) Tag: New redirect
- 16:22, 27 December 2023 Helpful talk contribs created page Metrics (Redirected page to Similarity or distance measures/metrics) Tag: New redirect
- 14:49, 27 December 2023 Helpful talk contribs created page Template:Opinions (Created page with "<div title="point of potential confusion" style="padding:.2rem .4rem; border-left: .65rem solid; border-radius:.4rem; border-color:rgb(213, 170, 204); font-size:110%; background-color:#fffff766; "><span style="color:#959090;">💬</span> <span style="color:#777;">This is colored by worldview, politics, or otherwise opinions that are in some part mine. You make up your own mind.</span></div>")
- 12:49, 24 December 2023 Helpful talk contribs created page HPND (Redirected page to Intellectual Property, Copyright, and related rights#Historical Permission Notice and Disclaimer (HPND)) Tag: New redirect
- 14:45, 19 December 2023 Helpful talk contribs created page Gray world (Redirected page to Illuminant correction#Gray world) Tag: New redirect
- 17:50, 17 December 2023 Helpful talk contribs moved page Web generations to Web generation-y numbers
- 12:54, 15 December 2023 Helpful talk contribs deleted page Legal and government data notes (content before blanking was: " =Dutch data= There is overlap between sites, and e.g. between the KOOP's repositories. This seems to come in part from the fact that different collections exist because of different laws, which happen to have overlapping requirements to the publication. It e.g. seems that * officielebekendmakingen.nl comes from the Bekendmakingwet (BWBR0004287) - algemene regels {{verify}} * openoverheid.nl comes from Wet open overheid (BWBR0045754) {{verify}} ==Exi...")
- 20:57, 9 December 2023 Helpful talk contribs deleted page Webpage scraping notes (content was: "{{scraping}} =HTML and XML parsing=", and the only contributor was "Helpful" (talk))
- 20:57, 9 December 2023 Helpful talk contribs created page Template:Scraping (Created page with "{| align=center style="background: #f5f9e0; border: 1px solid #aaa; padding: .2em; margin-bottom: 3px; font-size: 95%; width: auto; page-break-before:avoid; -moz-border-radius-bottomleft:0.25em; -moz-border-radius-bottomright:0.25em; -moz-border-radius-topleft:0.65em; -moz-border-radius-topright:0.65em;" | style="padding-right: 4px; padding-left: 4px;" | '''HTML and XML parsing''' : Python: BeautifulSoup ElementTree / lxml scraping Wrapping or controlling...")
- 20:56, 9 December 2023 Helpful talk contribs created page ElementTree / lxml scraping (Created page with "{{scraping}} ==ElementTree / lxml (python)== {{stub}} For ET in a broader sense, see Python_notes_-_XML#ElementTree For extracting/scraping data this way, you ''may'' specifically want lxml, because it has a few additions that can be really useful, such as the ''node''.xpath() method[https://lxml.de/xpathxslt.html#xpath], and the ability to navigate to the parent. Particularly xpath() saves a bunch of time, can sometimes make things much like BeautifulSoup, and...")