wikipedia | Tool for extracting plain text from wikipedia data | Wiki library
kandi X-RAY | wikipedia Summary
kandi X-RAY | wikipedia Summary
tool for extracting plain text from wikipedia articles.
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
- Returns the contents of an article
- Allows access to the data hash .
- Fetches the given text from the given text .
- Checks if the text is ambiguous
wikipedia Key Features
wikipedia Examples and Code Snippets
Community Discussions
Trending Discussions on wikipedia
QUESTION
I tried 5 different implementations of the Sobel operator in Python, one of which I implemented myself, and the results are radically different.
My questions is similar to this one, but there are still differences I don't understand with the other implementations.
Is there any agreed on definition of the Sobel operator, and is it always synonymous to "image gradient"?
Even the definition of the Sobel kernel is different from source to source, according to Wikipedia it is [[1, 0, -1],[2, 0, -2],[1, 0, -1]]
, but according to other sources it is [[-1, 0, 1],[-2, 0, 2],[-1, 0, 1]]
.
Here is my code where I tried the different techniques:
...ANSWER
Answered 2021-Jun-15 at 14:22according to wikipedia it's [[1, 0, -1],[2, 0, -2],[1, 0, 1]] but according to other sources it's [[-1, 0, 1],[-2, 0, 2],[-1, 0, 1]]
Both are used for detecting vertical edges. Difference here is how these kernels mark "left" and "right" edges.
For simplicity sake lets consider 1D example, and let array be
[0, 0, 255, 255, 255]
then if we calculate using padding then
- kernel
[2, 0, -2]
gives[0, -510, -510, 0, 0]
- kernel
[-2, 0, 2]
gives[0, 510, 510, 0, 0]
As you can see abrupt increase in value was marked with negative values by first kernel and positive values by second. Note that is is relevant only if you need to discriminate left vs right edges, when you want just to find vertical edges, you might use any of these 2 aboves and then get absolute value.
QUESTION
customer_data.json (loaded as customer_data)
...ANSWER
Answered 2021-Jun-15 at 17:32I am trying to go through each of the books in
holds
usingholds[0]
,holds[1]
etc and test to see if the title is equal to a book title
Translated almost literally to Python:
QUESTION
I need a regex to find and insert anchor tags with a span child. e.g.
replace:
...ANSWER
Answered 2021-Jun-15 at 16:40This is not perfect because you could possibly nest anchors within each other and regexes are bad about keeping tracking of nested contexts. But a good 90% solution is to start by looking for . Then in a separate capturing group save everything up to and not including the next .
QUESTION
I am not sure how to extract multiple pages from a search result using Pythons Wikipedia plugin. Some advice would be appreciated.
My code so far:
...ANSWER
Answered 2021-Jun-15 at 13:10You have done the hard part, the results are already in the results
variable.
But the results need parsing by the wiki.page()
nethod, which only takes one argument.
The solution? Use a loop to parse all results one by one.
The easiest way will be using for loops, but the list comprehension method is the best.
Replace the last two lines with the following:
QUESTION
In the following code:
...ANSWER
Answered 2021-Feb-27 at 09:23There are 2 separate queues for handling of the callbacks. A macro and a micro queue. setTimeout
enqueues an item in the macro queue, while promise resolution - to the micro queue. The currently executing macro task(the main script itself in this case) is executed synchronously, line by line until it is finished. The moment it is finished, the loop executes everything queued in the microtask queue before continuing with the next item from the macro queue(which in your case is the console.log("hello")
queued from the setTimeout
).
Basically, the flow looks like this:
- Script starts executing.
MacrotaskQueue: [], MicrotaskQueue: [].
setTimeout(() => console.log("hello"), 0);
is encountered which leads to pushing a new item in the macrotask queue.
MacrotaskQueue: [console.log("hello")
], MicrotaskQueue: [].
Promise.resolve('Success!').then(console.log)
is read. Promise resolves toSuccess!
immediately andconsole.log
callback gets enqueued to the microtask queue.
MacrotaskQueue: [console.log("hello")
], MicrotaskQueue: [console.log('Success!')
].
- The script finishes executing so it checks if there is something in the microtask queue before proceeding with the next task from the macro queue.
console.log('Success!')
is pulled from the microtask queue and executed.
MacrotaskQueue: [console.log("hello")
], MicrotaskQueue: [].
- Script checks again if there is something else in the microtask queue. There is none, so it fetches the first available task from the macrotask queue and executes it, namely -
console.log("hello")
.
MacrotaskQueue: [], MicrotaskQueue: [].
- After the script finishes executing the
console.log("hello")
, it once again checks if there is anything in the microtask queue. It is empty, so it checks the macrotask queue. It is empty as well so everything queued is executed and the script finishes.
This is a simplified explanation, though, as it can get trickier. The microtask queue normally handles mainly promise callbacks, but you can enqueue code on it yourself. The newly added items in the microtask queue will still be executed before the next macrotask item. Also, microtasks can enqueue other microtasks, which can lead to an endless loop of processing microtasks.
Some useful reference resources:
QUESTION
I have a CSS-type cubic bezier where
A = 0,0
B = a, b where 0<1
C = p, q where 0
I want a function pointOnBezier(a,b,p,q,x) => {x:x, y:y}
I've found this which helps but no mathematical formula😓
https://upload.wikimedia.org/wikipedia/commons/d/db/B%C3%A9zier_3_big.gif
Any help would be appreciated.
Thanks in advance!!!
ANSWER
Answered 2021-Jun-15 at 09:12You can find the Cubic Bézier curve formula in Wikipedia.
Once you have the formula, you need to find t by x and then find y by t. To find t, you need to solve a cubic equation. You can find the code for solving cubic equation from other places such as this post.
Here is the code for your reference:
QUESTION
Will I possibly loose any decimal digits (precision) when multiplying Number.MAX_SAFE_INTEGER
by Math.random()
in JavaScript?
I presume I won't but it'd be nice to have a credible explanation as to why 😎
Edited, In layman terms, we're dealing with two IEEE 754 double-precision floating-point numbers, one is the maximal integer (for double-precision), the other one is fractional with quite a few digits after a decimal point. What if (say) I first converted them to quadruple-precision format, then multiplied, and then converted the product back to double-precision, would the result be any different?
...ANSWER
Answered 2021-Jun-15 at 02:48Your implementation should be safe - in theory, all numbers between 0 and MAX_SAFE_INTEGER should have a possibility of appearing, if the engine implementing Math.random
uses a completely unbiased algorithm.
But an absolutely unbiased algorithm is not guaranteed by the specification - the numbers chosen are meant to be psuedo random, not truly, completely random. (does such a thing even exist? it's debatable...) Modern versions V8 and some other implementations use an algorithm with a period on the order of 2 ** 128, larger than MAX_SAFE_INTEGER (2 ** 53 - 1) - but it'd be completely plausible for other implementations (especially older ones) to have a much smaller period, resulting in certain integers within the range being picked much more often than others.
If this is important for your script (which is pretty unlikely in most situations, I'd think), you might consider using a higher-quality random generatior than Math.random
- but it's almost certainly not worth worrying about.
QUESTION
I'm trying to design a simple page for practicing with just html and css. I used a hover pseudo class for the croissant image. It works but when I hover the mouse over the croissant the coffee cup image will move to right a little(almost 50 or 100 pixels) and when I hover off of the croissant the coffee cup will back in its position before. meanwhile I'm new in web design and just start learning few days. here's my code:
...ANSWER
Answered 2021-Jun-15 at 01:41In details:
- relative
...
if you do give it some other positioning attribute, say, top: 10px;, it will shift its position 10 pixels down from where it would normally be.
... - absolute
...
use the positioning attributes top, left, bottom, and right to set the location. Remember that these values will be relative to the next parent element with relative (or absolute) positioning. If there is no such parent, it will default all the way back up to the element itself meaning it will be placed relative to the page itself
...
Muhammad Zaib has the answer, and there is a demo:
QUESTION
I am revisiting C++ after a long hiatus, and I would like to use templates to design the known "map" function -- the one which applies a specified function to every element of some specified "iterable" object.
Disregarding the fact my map
doesn't return anything (a non-factor here), I have managed to implement what I wanted if the function passed to "map" does not need to accept additional arguments:
ANSWER
Answered 2021-Jun-13 at 20:41A simple way to fix this would be to deduce the non-type template parameter for the function, and reorder the template parameter list
QUESTION
I'm trying to create a pseudo-random generator API, but numbers generated by xorshift have unrandom nature. You can see the algorithm and tests here:
...ANSWER
Answered 2021-Jun-14 at 09:54You're looking at random numbers uniformly distributed between 0 and 18,446,744,073,709,551,615 (UINT64_MAX). All numbers between 10,000,000,000,000,000,000 and 18,446,744,073,709,551,615 start with a 1, so the skewed distribution is to be expected.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install wikipedia
On a UNIX-like operating system, using your system’s package manager is easiest. However, the packaged Ruby version may not be the newest one. There is also an installer for Windows. Managers help you to switch between multiple Ruby versions on your system. Installers can be used to install a specific or multiple Ruby versions. Please refer ruby-lang.org for more information.
Support
Reuse Trending Solutions
Find, review, and download reusable Libraries, Code Snippets, Cloud APIs from over 650 million Knowledge Items
Find more librariesStay Updated
Subscribe to our newsletter for trending solutions and developer bootcamps
Share this Page