conflation | OpenStreetMap Live Conflation | Map library
kandi X-RAY | conflation Summary
kandi X-RAY | conflation Summary
Work on this project was supported by the Open Data Institute via Oxfordshire County Council: See for a to-do list of identified enhancements. Map rendering is via Mapbox GL and Leaflet. MIT licence, (c) Richard Fairhurst 2019.
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Trending Discussions on conflation
QUESTION
I have been looking at producing a multiplication function to be used in a method called Conflation. The method can be found in the following article (An Optimal Method for Consolidating Data from Different Experiments). The Conflation equation can be found below:
I know that 2 lists can be multiplied together using the following codes and functions:
...ANSWER
Answered 2021-Apr-02 at 17:12In the second prod_pdf
you are using computed PDFs while in the first you were using defined distributions. So, in the second prod_pdf
you already have the PDF. Thus, in the for loop you simply need to do p_pdf = p_pdf * pdf
From the paper you linked, we know that "For discrete input distributions, the analogous definition of conflation is the normalized product of the probability mass functions". So you need not only to take the product of PDFs but also to normalize it. Thus, rewriting the equation for a discrete distribution, we get
where F
is the number of distributions we need to conflate and N
is the length of the discrete variable x
.
QUESTION
I have been looking into the method called Conflation which looks into combining several continuous distributions of some type but different shapes/arguments (mean and variance) into one continuous distribution. The question can be found at the following link: Conflation Method Question.
So, I wanted to look for a way to combine different types of continuous distributions instead of normal distribution but I have been struggling with how to form the conflated distribution array using an equation for continuous distributions (Conflation equation can be found in the link above) with norm distribution. I got the following error message:
Error Message:
...ANSWER
Answered 2021-Mar-17 at 15:57That code doesn't make sense. First, if you simply graph the prod_pdf function, youll get a flat line at zero. I think prod_pdf needs to contain: for c,x in enumerate(dist): p_pdf[c]=p_pdf[c]*x As for the error, I don't think this is a case where you can use the quad function. You want to sum along the values of the distribution. Maybe you could use integrate.simpson() function.
QUESTION
I looked online for performing the averaging several continuous probability distributions into one distribution. This method is called Conflation and it can be found from the following link:
An Optimal Method for Consolidating Data from Different Experiments
From what I understand is that it performs by multiplying each probability density value from several probability distributions divided by the summation of each probability density value from several probability distributions (details can be found at page 5)
Say I have around 4 lists, for example,
...ANSWER
Answered 2020-Oct-14 at 14:19Disclaimer: there's a good chance I'm misunderstanding either you or the paper authors, in which case please suggest an edit to this answer.
Here is a trivial, not-especially-performant implementation of what I think conflation might look like
QUESTION
In Perl 6 you can specify a type that a type can be coerced to. For example, you need an Int
but get something else that can convert to an Int
. This is handy when you don't want separate candidates for Int
and Str
where the string represents an integer value.
But, it seems that the conversion is a bit aggressive because the conversion not only changes the type but is willing to change the data. It's partly a problem of the conflation of changing types and an expected operation to truncate a number to an integer. Conceptually those are different ideas but they are intertwined in Str.Int
(actually sandwiching a side trip to Numeric
):
ANSWER
Answered 2018-Mar-13 at 23:46One possible signature would be
QUESTION
We've recently started using MediatR to allow us to de-clutter controller actions as we re-factor a large customer facing portal and convert it all to C#. As part of this we are increasing our unit test coverage as well, but I've hit a problem when trying to mock MediatR itself.
The command does a bunch of stuff to initiate a process and part of this is sending a notification. The notification itself is dealt with by its own handler and therefore would be subject to its own unit test so I want to mock MediatR so that the this.mediator.Send(message)
call doesn't really do anything. The handler does return an object but we don't care about it in this context so to all intents and purposes we are treating it as a void
return. I just want to verify that Send
has been called once as part of the test. However, the Send
method is throwing a NullReferenceException
and I don't know why.
As of version 3, MediatR now takes a second optional parameter on Send
, a CancellationToken
, and expression trees require you to explicitly set them so you must specify a value. I've not encountered this before and in my mind I feel that this might be part of the problem but this may be conflation on my part.
Here's a cut down illustration.
SUT
...ANSWER
Answered 2017-Apr-06 at 10:30You need to handle the await of the async operation of the Send
methods as they return tasks.
QUESTION
When launching an application deployed to Google Application Engine Flexible, it fails with too many 307 redirects. It runs successfully locally in the VS IDE.
The development and computing stack include:
- MacOS
- .NET Core 3
- Visual Studio 2019 for Mac
- Docker
- Google Application Engine
I created a project using the VS api template (weather forecast).
- Create API project
- Add Docker support (via the menu)
- Create and export SSL certificate:
ANSWER
Answered 2019-Dec-11 at 03:34It turns out that the solution was quite simple once i understood what the real problem was, part of which stemmed from being quite new to the newer .net core versions such as 3.x, being new to GAE Flex, and to Docker, all at the same time.
In any event, removing app.UseHttpsRedirection(); in the Startup.cs class' Configure method resolved the immediate problem. The issue was explained in this article: https://docs.microsoft.com/en-us/aspnet/core/security/enforcing-ssl?view=aspnetcore-3.1&tabs=visual-studio
Essentially GAE Flex was already providing redirection on port 8080, so the additional redirection instruction in the code was causing endless redirections with HTTP 307 results.
QUESTION
It's typical for a Relational Database Management System to use a specific variant of SQL. For example, SQL Server uses Transact-SQL aka T-SQL.
I understand MariaDB is based on MySQL (the RDBMS), and the SQL variant that MySQL uses is apparently itself also called MySQL (according to this question). Should I assume MariaDB also uses the MySQL language?
I have tried several Google searches, but I've found nothing. It's tricky because of the conflation between the RBDMS and the language. Most results are just comparing MariaDB with MySQL (the RDBMS).
...ANSWER
Answered 2017-Nov-03 at 20:06MariaDB does indeed use the same SQL dialect as MySQL.
But, later versions of MariaDB have extra features, which show up mostly as settings and functions in the query language. The MariaDB team's list of differences is here: https://mariadb.com/kb/en/library/mariadb-vs-mysql-features/
The big ones, from my personal perspective, mostly in MariaDB 10.2 and later.
- The SEQUENCE storage engine: generates sequences of cardinal numbers. https://mariadb.com/kb/en/library/sequence-storage-engine/ This shows up as specially formatted table names like
sequence_1_to_42
. - Window functions: ranking, distributions, etc. https://mariadb.com/kb/en/library/sequence-storage-engine/
- Common Table Expressions https://mariadb.com/kb/en/recursive-common-table-expressions-overview/
- ... and the
WITH
clause to use them. https://mariadb.com/kb/en/with/ - Regular expressions to operate on data not just match it. https://mariadb.com/kb/en/library/pcre/
QUESTION
A simple conflating combo (below) sometimes prints a debug message at staartup saying it's dropping messages because of zero demand. I would expect conflation stage to provide infinite demand, so the above should never be the case. What am I missing?
...ANSWER
Answered 2019-Apr-03 at 07:15The documentation of Source.actorRef
is quite clear about this:
The buffer can be disabled by using
bufferSize
of 0 and then received messages are dropped if there is no demand from downstream. WhenbufferSize
is 0 theoverflowStrategy
does not matter. An async boundary is added after this Source; as such, it is never safe to assume the downstream will always generate demand.
The problem is the async boundary between the source and the conflation stage. The conflation stage indeed provides infinite demand, but the async boundary kind of makes it slow to propagate to the source.
You can either use a buffer in your source (increase bufferSize), or use another source e.g., Source.queue
if appropriate as it doesn't introduce an async boundary
QUESTION
I have about 2500 html-files of different standards. I need to remove the footer part of them. The HTML-code below is one of my files footer, and I need to remove the two hr-elements and the elements between the two.
So far I have only tried targeting the hr-element with xpath (and HTML Agility Pack) selectSingleNode
and DocumentNode.SelectNodes("//hr");
. And then try to iterate with a foreach.
But I am too much of a noob to use XPath properly, and don't know how to select the node and its siblings(?) to delete them.
This is what I've got so far, with the help of this community. :)
...ANSWER
Answered 2018-Feb-20 at 19:00I think, you expect this ,
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