Answerable | Recommendation system for Stack Overflow | Theme library
kandi X-RAY | Answerable Summary
kandi X-RAY | Answerable Summary
Recommendation system for Stack Overflow unanswered questions
Support
Quality
Security
License
Reuse
Top functions reviewed by kandi - BETA
- Suggest recommendations
- Load configuration
- Return the preprocessed text from the html
- Parse arguments
- Displays information about a user
- Format msg using ansi
- Darken a color
- Batch a message
- Get information about a user
- Get a list of questions
- Print msg to stdout
- Check if the file is too old
- Get a feed
- Fetch a question feed
- Update a cache
- Save current configuration
- Displays the feed
- Return the latest version of github
- Calculate the average reputation weighted average
- Compute the reputation
- Return the top tags of the top tags
- Display QA
- Return top tags in qa
- Compute the top tags of the query
- Compute the top tags score for a given query
- Compute the top tags for the top tags
- Compute the reputation of an answer
Answerable Key Features
Answerable Examples and Code Snippets
Community Discussions
Trending Discussions on Answerable
QUESTION
Follow-up question for:
Context: ISO/IEC 9899:202x (E) working draft — February 5, 2020 C17..C2x N2479 (emphasis added):
J.3 Implementation-defined behavior, J.3.5 Integers
— The result of, or the signal raised by, converting an integer to a signed integer type when the value cannot be represented in an object of that type (6.3.1.3).
6.3.1.4 Real floating and integer
When a finite value of standard floating type is converted to an integer type other than _Bool, the fractional part is discarded (i.e., the value is truncated toward zero). If the value of the integral part cannot be represented by the integer type, the behavior is undefined.
Question: Why converting 'out of range integer to integer' leads to IB, but converting 'out of range floating-point to integer' leads to UB? I.e. why the behavior is not consistent (e.g. IB in both cases)?
UPD. Answer from user P.P. in duplicated question:
...I doubt it's reasonably answerable. It's mainly because of history, and based on the implementations, behaviours of hardware, etc when C was standardized. So "consistency" wasn't possible/practical (it's not like the committee decided to arbitrarily classify certain behaviours as IB, UB, or unspecified).
ANSWER
Answered 2021-Mar-21 at 23:51From the point of view of the Standard, the question of whether to classify something as Implementation-Defined Behavior and Undefined Behavior depends on whether all implementations should be required to document a behavior generally consistent with the semantics of the language, regardless for cost or usefulness. There was no need to mandate that implementations process actions in ways their customers would find useful, because it was expected that implementations allowed to behave in such fashion would do so with or without a mandate. Consequently, it was seen as better to characterize as Undefined Behavior useful actions which implementations might process 100% consistently, than to characterize as Implementation-Defined actions which might sometimes be impractical to implement consistently.
Note that for an implementation to treat an action as having documented behavior could sometimes have costs that might not be obvious. Consider, for example:
QUESTION
I've read on cppreference that with C++20, it's possible to omit specifying the type aliases reference
, pointer
and iterator_category
when defining a new iterator.
In this case, the corresponding aliases in std::iterator_traits
will have "default" values.
The details of this are a bit confusing to me, so I'm trying to split this topic into answerable questions.
So, my first question is:
Are all (or some) of these "default" aliases guaranteed to be correct?
As I understand it, the iterator_category
tags are based on the C++17 named requirements.
If an iterator satisfies the forward iterator requirement (but not the bidirectional requirement), its tag should be forward_iterator_tag
.
I'm specifically worried about the distinction between forward_iterator_tag
and input_iterator_tag
.
Forward iterators have to be able to be used in multipass algorithms, but I don't think the compiler checks that this is the case.
Are there cases where I can know that the "default" aliases will be correct (e.g. an output iterator is always classified correctly, or the default reference
alias is always correct)?
ANSWER
Answered 2021-Feb-26 at 21:56Define "correct". The point of having defaults is to cover the most common cases adequately, while still allowing them to be overridden manually when needed. This implies that, in those cases, the defaults wouldn't be appropriate.
Can you write a type where the defaults are not valid? reference
is by default whatever *t
returns, so it's pretty hard for the default to be wrong even for proxy iterators.
pointer
is defined to be what operator->
would yield, but if no such thing exists, it would be void
. But that's OK, because the pointer
trait isn't really useful since operator->
isn't even required to be supported by any iterator type.
iterator_category
's default is more likely to yield an improper result, but it's not exactly common. Input iterators are less common than other types, so you can easily avoid issues by just specifying the tag when you're writing an input iterator.
It should also be noted that iterator_category
specifies conformance to C++17 iterator categories. The C++20 concepts can be overridden by providing an iterator_concept
tag specification.
Note also that the ITER_CONCEPT
meta-function in C++20 that extracts the iterator tag for the C++20 concepts explicitly bypasses the defaulting mechanism of iterator_category
. That is, it only checks the tag you explicitly specify on the iterator itself (either via iterator_concept
or iterator_category
as a fallback) or on an iterator_traits
specialization, not the default that the primary iterator_traits
template would produce. So C++20's concepts requires you to specify the tag in some way, despite iterator_traits::iterator_category
having a defaulting mechanism.
QUESTION
I'm a novice at ML but I'm trying to create a model to detect a few objects in my custom photos. Before training my model, I'd like to know if and how I should modify my images to improve its accuracy.
I don't have access to the photos at the moment, however, I can provide an example of the characteristics of the images I'll be working with:
- There's a white piece of paper (so white background), and on it are a bunch of insects.
- There are a few different kinds of insects, and they look unique from eachother (different colors, shapes, sizes etc.).
- The camera is pretty zoomed out, so each insect is probably ~ 40x40 pixels (so it's not really high definition).
I don't know much about machine learning, but I'd assume that because the insects will be captured in low quality, the model will mainly end up relying on the general shape and color to distinguish/identify the insects (e.g. long or circular spot on photo, etc.).
Therefore, I was wondering if I should do anything to to the photos to achieve higher accuracy (before I train it). For example, if I increase the contrast in my photos, would the insect's borders be more defined and thus make it easier for the model to detect/identify them? Or, should I convert the images to grayscale or stick with RGB? Are there any other factors that should be considered? Any help will be greatly appreciated!
Edit: I'm not sure why someone voted to close this as opinion-based, however, I'm not asking for an opinion. I'm trying to understand more about image-detection process by learning what constitutes a "good" photo versus a "bad" one. Even though this sounds like it's opinion-based, it's not. For example, I'm sure having extremely low-light photos would be terrible for training models. This wouldn't be an opinion, but a evidence-based fact.
Similarly, I'd like to learn what kinds of general characteristics make "better" photos, such as if I should use high contrast, brightness, etc. I think this is an answerable question that is not opinion-based.
...ANSWER
Answered 2021-Feb-20 at 06:40You an employ standard preprocessing strategy like
- Normalization of the RGB values
- Horizontal/Vertical flipping
- Affine transformation
P.s. it is more of comment than answer (I can't put comments)
QUESTION
Please note: my question mentions MySQL, but it is a Docker/Docker Compose volume management question at heart, and as such, should be answerable by anyone with decent experience in that area, regardless of their familiarity with MySQL.
My understanding is that Dockerized MySQL containers, when defined from inside a Docker Compose file like below, will be ephemeral, meaning they store all data on the container itself (no bind mounts, etc.) and so when the container dies, the data is gone as well:
...ANSWER
Answered 2021-Feb-04 at 12:45You can have multiple Compose files that work together, where you have some base file and then other files that extend the definitions in the base file.
Without extra setup, Compose looks for docker-compose.override.yml
alongside the main docker-compose.yml
. Since the only difference between the "ephemeral" and "persistent" mode is the volumes:
declaration, you can have an override file that only contains that:
QUESTION
Please note: this question mentions Java and Java keystores, but in reality has nothing to do with Java and should be answerable by anyone with sufficient knowledge of Docker and writing Dockerfiles.
I have a web service (myservice
) that is a JVM application that has been Dockerized. The Dockerfile
for it looks like this:
ANSWER
Answered 2021-Feb-01 at 21:42There are two problems here.
You can only copy files from your build directoryYou cannot copy files that exist outside of your build directory (such as ../apprunner/certs/mykeystore.p12
). If you try reference this file directory in your Dockerfile
, like this:
QUESTION
NOTE: This is not a duplicate of any existing question, it's intended to show why such an extremely common and seemingly simple question is unanswerable and provide guidance on how people posting such questions can modify them to make them answerable so we don't have to keep providing the same guidance in comments almost every day and can just refer to this instead.
Given the following input file:
...ANSWER
Answered 2021-Jan-28 at 22:22While on the surface this seems to be a simple question with an obvious answer it actually is not because of 2 factors:
- The word
pattern
is ambiguous - we don't know if the OP wants to do a regexp match or a string match, and - The word
match
is ambiguous - we don't know if the OP wants to do a full match on each line (consider line and record synonymous for simplicity of this answer) or a full match on specific substrings (e.g. "words" or fields) on a line or a partial match on part of each line or something else.
Either of these would produce the expected output from the posted sample input:
awk '/o.b/' file
awk '/^o.b$/' file
awk 'index($0,"o.b")' file
awk '$0 == "o.b"' file
but we don't know which is correct, if any, all we know is that they produce the expected output from the specific sample input in the question.
Consider how each would behave if the OPs real data contains additional strings like this rather than just the minimal example shown in the question:
QUESTION
Please note: even though this question mentions MySQL and Docker, it really has nothing to do with either and should be answerable by any knowledgable bash scripter.
Rusty on my bash scripting here. I'm looking at the official MySQL 8.0 Dockerfile and see that it calls and runs a bash script called docker-entrypoint.sh
. Looking at that script, it appears to (conditionally) run a snippet of code that creates a database, if it doesn't already exist:
ANSWER
Answered 2021-Jan-25 at 17:15As far as a shell script is concerned, an environment variable is just a variable that happens to be inherited from the environment, it doesn't change the behaviour of that variable.
So to understand what the code does, you don't need to know which "type" of variable it is, only that by that point in the code, there might be a variable with that name. You then need to know this fact about the [
(aka test
) command:
STRING
: equivalent to-n STRING
and
-n STRING
: the length ofSTRING
is nonzero
So all [ "$MYSQL_DATABASE" ]
means is "is the length of the $MYSQL_DATABASE
variable more than zero at this point in the code?"
Whether this variable is expected "before" the script runs (e.g. preset as an environment variable) or calculated "inside" the script, you can only find out by reading through.
QUESTION
I have some JSON (let's call it json1
), and I want to combine it with some other JSON (json2
). I don't just want to merge or append data, I also want to be able to delete data from json1
by embedding "commands" in json2
.
Example
...ANSWER
Answered 2021-Jan-04 at 19:48With jsonpatch your example would translate to a JSON Patch
similar to this:
QUESTION
Is there a free way to use IntelliJ when pair-programming?
My question is similar to this question which is 10 years old with Remote Pair Programming in IntelliJ but I was hoping for a more updated answer since many links like screenhero on that question are now broken. I use special libraries that only exist in IntelliJ so using VSC Liveshare is out of the question and I have no where else to ask so please do not close this question for reputation points from closing a question, many people have this question and with COVID + transition to work online this is more important than ever.
...SO has a perfect audience to see questions and answers like this one. Questions on the SO are not only about code itself but also SO should be a place for: "a specific programming problem" or "software tools commonly used by programmers" or "a practical, answerable problem that is unique to software development" In other words, I strongly disagree with closing questions like this, especially that these tools evolve. – Sławomir Lenart
ANSWER
Answered 2020-Nov-13 at 14:46There is a plugin called CodeTogether
QUESTION
This is somewhat of a broad topic, but I will try to pare it to some specific questions.
I was thinking about a certain ~meta~ property in Python where the console representation of many basic datatypes are equivalent to the code used to construct those objects:
...ANSWER
Answered 2020-Jul-07 at 12:09What the console representation of an object is, depends on the way its __repr__()
method is written. So I think most of us would at least understand if you talked about this "property" as the repr
of the object. The method has to return a string but the string's contents are up to the author, so it's impossible to say in general whether the repr
of an object is the same as the code needed to create it. In some cases (such as functions) the code might be too long to be useful. In others (such as recursive structures) there might be no reasonable linear representation.
Reposted as an answer instead of a comment in response to suggestions by participants in the comment thread.
Community Discussions, Code Snippets contain sources that include Stack Exchange Network
Vulnerabilities
No vulnerabilities reported
Install Answerable
You can use Answerable like any standard Python library. You will need to make sure that you have a development environment consisting of a Python distribution including header files, a compiler, pip, and git installed. Make sure that your pip, setuptools, and wheel are up to date. When using pip it is generally recommended to install packages in a virtual environment to avoid changes to the system.
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