cobweb | Web crawler with very flexible crawling options | Crawler library
kandi X-RAY | cobweb Summary
kandi X-RAY | cobweb Summary
Web crawler with very flexible crawling options. Can either use standalone or can be used with resque to perform clustered crawls.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of cobweb
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cobweb Examples and Code Snippets
Community Discussions
Trending Discussions on cobweb
QUESTION
For my game, I'm trying to make it so whatever happens to a player that lands on a tile only happens to that player and not to everyone in the game so I don't copy the same variable 4 times for everything a player is able to do.
For example, I have something like:
...ANSWER
Answered 2021-Feb-28 at 14:08I will just create an example for someone new in Python. Let's say you have a list or a dict.
QUESTION
Here is my database structure:
...ANSWER
Answered 2021-Jan-01 at 16:29I'm surprised that the database returns items that don't have the property you order on. But as a workaround, you can probably add a queryStarting(atValue: 1)
to the query.
QUESTION
Relatively new to Matplotlib. I plotted a cobweb diagram and is now hoping to change the r values via arrow keys as the program is running. Tried to use "import keyboard" along with a "running loop" but it doesn't seem to work. Can someone please explain?
...ANSWER
Answered 2020-Jul-12 at 10:47You need to turn on the interactive mode with plt.ion()
and replace plt.show()
with fig.canvas.draw()
. Check the following code:
QUESTION
We have different modules in the Angular Application: Customer, Product, Sales, Inventory, Marketing, etc.
What's occurring- sometimes different customer, product forms, components, etc can be required in other components.
So Inventory may need customer, Product requires marketing, etc
Our team is discussing two options ,
1) Either have all the modules reference to each other; team is reluctant to conduct since, it may become a network cobweb model and difficult to maintain.
2) Or place everything into Shared Module. However lot of these components are shared , so 60-70% may end up in this.
Curious if there is third option, not requiring every file to be relocated to Shared, and something easier to maintain.
...ANSWER
Answered 2019-Dec-21 at 08:51When the Application starts growing, splitting components in to business modules is the best practice. It is really easy to maintain.
Shared Module Concept: The shared module concept could be introduced if the elements in UI / business model in UI(dialog box, tooltip etc.,) should be common across the application. You may want to have the similar UX across the App.
To refer components which are not part of current module, you can load the components using dynamic component loader concept. Please refer the angular documentation. You can write this dynamic loader generically, so that you can use across. https://angular.io/guide/dynamic-component-loader
What are we trying to achieve here is to delegate the component reference in runtime by angular itself.
QUESTION
I ran into the problem of having to lock 2 or more resources, which led to a Deadlock when using ReentrantReadWriteLocks, even after having the same locking order everywhere*. I implemented a method that takes Lock Objects, locks them all or rollsback and preempts the current thread:
...ANSWER
Answered 2019-Nov-18 at 15:04Is the use of Thread.yield() okay? or would Thread.sleep(1) be more appropriate?
You should be aware that Thread.yield()
is not guaranteed to do anything at all. It's an anachronism from a time when somebody imagined that Java programs might possibly run in a cooperative multitasking environment. Cooperative multitasking still exists, but you won't often find it on systems that are powerful enough to host a JVM.
The sleep(1)
call is guaranteed to yield, but it will impact the program's performance---a millisecond is a long time these days. Whether or not the impact is too great is a question that only you can answer.
I have seen sleep(0)
in Java code, but I don't know whether that is required to behave any differently from yield()
.
Is there something more elegant than this?
Maybe not more elegant, but you can avoid the overhead of locking and unlocking multiple OS mutexes (i.e., Lock
objects) by keeping a global Set
of tree nodes that are "locked," and using a single, global Lock
object to control access to the Set
.
QUESTION
I'm trying to add custom shears to my mod. I made the class and extended it to original ShearsItem class. They only seem to work on sheep. When I try to break leaves/cobweb nothing drops. I tried looking at other mods that add shears and couldn't find anything speacial that they have added. I'm new to coding so I might have overlooked something.
...ANSWER
Answered 2019-Oct-26 at 14:41You will hava a much higher chance to get an answer if you post this on the forge forums.
Here are some threads you might want to hava a look at: https://www.minecraftforge.net/forum/topic/71894-terrible-kludge1142-making-custom-shears-work-on-leaves/
https://www.minecraftforge.net/forum/topic/77244-1144-how-to-implement-custom-shears/ It seems you're out of luck for now.
QUESTION
I would like to know how I can cluster a multivariate dataset using K-means. Each sample in this dataset corresponds to a Person (I have 6000 people), and each Person has both continuous and discrete attributes (10 attributes/Person). An example:
- person_id: 1234
- name: "John Doe"
- age: 30
- height: '5 ft 10 in'
- salary_value: 5000
- Salary_currency: USD
- is_customer: False
- Company: "Testing Inc."
- ...
I have read an existing answer on multidimensional k-means clustering, but the attributes in the dataset there are all continuous. Even a more helpful reading was a post about clustering algorithm for continuous and discrete variables. As mentioned in the latter, I accept I may have to find a function that values discrete states. But I cannot use ROCK or COBWEB for clustering, only k-means.
Which functions can I use to convert the discrete values to continuous ones? Furthermore, is there any way I can prioritize the attributes also (say clustering based on Salary/Age is more important than height), or should I just revamp the whole approach?
...ANSWER
Answered 2018-Oct-18 at 06:48K-means algorithm performs the clustering on the data points with continuous features.
The way to convert the discrete features into continuous is one hot encoding.This convert categorical features like company name into numerical array. You can see the documentation here.
You also need to normalize every features to bring them in same range say 0 to 1. To give importance to some features keep the range of the important features higher.
QUESTION
I know this question has been answered in here before, but the different functions suggested in the other questions have not been to any help for me - and I´ve tried some few.
I have for example this string with three names that outputs from my database every time it's being loaded:
...ANSWER
Answered 2018-Apr-04 at 12:16Something like this?
QUESTION
I have a json array which has bullet1 and bullet 2 values to be binded in a single spinner.
[{"id":7,"description":"Height dusting","is_active":true,"createdBy":1,"CreatedOn":"2018-02-20T19:48:16","ModifiedBy":null,"ModifiedOn":null,"Bullet1":"Done","Bullet2":"Not Done"},
{"id":8,"description":"Cobwebs removed","is_active":true,"createdBy":1,"CreatedOn":"2018-02-20T19:48:17","ModifiedBy":null,"ModifiedOn":null,"Bullet1":"Yes","Bullet2":"No"},
{"id":9,"description":"Side walls cleaned","is_active":true,"createdBy":1,"CreatedOn":"2018-02-20T19:48:17","ModifiedBy":null,"ModifiedOn":null,"Bullet1":"Yes","Bullet2":"No"}],"token":null,"ActionName":"GetQuestionnairesByLocation"}]
So now dynamically there are 3 spinners and according to that only 2 values should be seen in respective spinners. First Spinner - Done, Not Done. Second Spinner - Yes, No. Third Spinner - Yes, No. But the problem i am facing is every spinner is getting binded with 6 values.(Done, Not Done, Yes, No, Yes, No)
Code :
...ANSWER
Answered 2018-Feb-24 at 11:57this is beacuase you are initialize your List outside of for loop. try to initialize your list in for loop.
QUESTION
so I have this lines being plotted
...ANSWER
Answered 2017-Nov-17 at 05:01color
accepts multiple types of inputs, such as a tuple of RGB values. However, the best method to create a rainbow would be with HSV
. Fortunately, matplotlib.colors
has a hsv_to_rgb
function:
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