MIDAS | Anomaly Detection on Dynamic Graphs | Predictive Analytics library

 by   Stream-AD C++ Version: v1.1.2 License: Apache-2.0

kandi X-RAY | MIDAS Summary

kandi X-RAY | MIDAS Summary

MIDAS is a C++ library typically used in Analytics, Predictive Analytics, Deep Learning applications. MIDAS has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

The old implementation is in another branch OldImplementation, it should be considered as being archived and will hardly receive feature updates.
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              MIDAS has a low active ecosystem.
              It has 611 star(s) with 71 fork(s). There are 28 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 1 open issues and 14 have been closed. On average issues are closed in 3 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of MIDAS is v1.1.2

            kandi-Quality Quality

              MIDAS has no bugs reported.

            kandi-Security Security

              MIDAS has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

            kandi-License License

              MIDAS is licensed under the Apache-2.0 License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              MIDAS releases are available to install and integrate.
              Installation instructions are not available. Examples and code snippets are available.

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            MIDAS Key Features

            No Key Features are available at this moment for MIDAS.

            MIDAS Examples and Code Snippets

            No Code Snippets are available at this moment for MIDAS.

            Community Discussions

            QUESTION

            Disable button on specific slide
            Asked 2021-May-21 at 18:17

            i have make it an slider with 2 image, the first is Gotrade and second Midas. I want when im on first slide to not display the left arrow and when im on second the right arrow to not be displayed.

            ...

            ANSWER

            Answered 2021-May-21 at 18:17

            There are several things wrong with your code. For example, you're checking for a classname called active-slide, but nothing in your code sets a class with that name. If you're copying and pasting code from other sources without taking some time to understand it, it may be impossible to debug.

            Instead of checking for the existence of a class that doesn't exist, you can instead check for which slide number you're on, and check if you're on the first or last slide. You also need to run this code after slide transitions, not once at the end of your program as you've shown in the Codepen. Here's an example of the working Javascript checking for slideIndex instead of a class:

            Source https://stackoverflow.com/questions/67641685

            QUESTION

            Finding the darkest region in a depth map using numpy and/or cv2
            Asked 2021-Jan-28 at 13:08

            I am attempting to consistently find the darkest region in a series of depth map images generated from a video. The depth maps are generated using the PyTorch implementation here

            Their sample run script generates a prediction of the same size as the input where each pixel is a floating point value, with the highest/brightest value being the closest. Standard depth estimation using ConvNets.

            The depth prediction is then normalized as follows to make a png for review

            ...

            ANSWER

            Answered 2021-Jan-28 at 13:08

            The minimum is not a single point but as a rule a larger area. argmin finds the first x and y (top left corner) of this area:

            In case of multiple occurrences of the minimum values, the indices corresponding to the first occurrence are returned.

            What you need is the center of this minimum region. You can find it using moments. Sometimes you have multiple minimum regions for instance in frame107.png. In this case we take the biggest one by finding the contour with the largest area.

            We still have some jumping markers as sometimes you have a tiny area that is the minimum, e.g. in frame25.png. Therefore we use a minimum area threshold min_area, i.e. we don't use the absolute minimum region but the region with the smallest value from all regions greater or equal that threshold.

            Source https://stackoverflow.com/questions/65931512

            QUESTION

            Why do we need midas.dll in Delphi projects?
            Asked 2020-Nov-19 at 15:35

            I have noticed that in many Delphi projects there is a file which is midas.dll. I tried surfing the internet to find what it does but I failed. Can anybody explain to me why do we need midas.dll?

            ...

            ANSWER

            Answered 2020-Nov-19 at 15:35

            Client datasets are specialized datasets that hold all their data in memory. The support for manipulating the data they store in memory is provided by midaslib.dcu or midas.dll. The format that client datasets use for storing data is self-contained and easily transported, which allows client datasets to...read the rest here.

            Source https://stackoverflow.com/questions/64914742

            QUESTION

            Checking if 2 Binary search trees are equal
            Asked 2020-Jul-26 at 09:46

            I'm creating a binary search tree project, and one of the questions is to create 2 trees and check if they're equal or not. When I implement the method, I keep getting firstTree and secondTree are equal. Here's the relevant code:

            ...

            ANSWER

            Answered 2020-Jul-26 at 09:46

            You forget to check if the value of node1 and node2 are the same.

            • If they are not the same, it means these two trees are not same.
            • If they are the same, we keep on checking if their left and right child are the same.

            Source https://stackoverflow.com/questions/63084017

            QUESTION

            Nowcasting Y with known X, using VECM in R
            Asked 2020-Apr-21 at 07:05

            I am trying to nowcast a time series data (Y) using another time series (X) as a predictor. X and Y are cointegrated. Y is a monthly data from Jan 2012 to Oct 2016 and X runs from Jan 2012 to Feb 2017.

            So, I ran VECM as it shown in this video: https://www.youtube.com/watch?v=x9DcUA9puY0

            Than, to obtain a predicted values, I transformed it in VAR by vec2var command, following information from this topic: https://stats.stackexchange.com/questions/223888/how-to-forecast-from-vecm-in-r

            But I can not forecast Y with known X, how it can be made using predict function with a linear regression model. Also, I can not obtain modelled Y (Y hat) values.

            This is my code:

            ...

            ANSWER

            Answered 2017-Apr-11 at 20:55

            I feel your question is more about how to do nowcasting for cointegrated variables, then let's see later how to implement it in R.

            In general, according to Granger's representation theorem, cointegrated variables can be represented in multiple forms:

            • Long term relationship: contemporaneous values of y and x

            • VECM representation: (diff of) y and x explained by (diff of) lags, and error-correction term at previous period.

            So I am not sure how you would do nowcasting in the VECM representation, since it includes only past values? I can see two possibilities:

            1. Do nowcasting based on the long-term relationship. So you just run standard OLS, and predict from there.

            2. Do nowcasting based on a structural VECM, where you add contemporaneous values of the variables you know (X). In R, you would do this package urca, you need though to check whether the predict function will allow you to add know X values.

            Regarding the long-term relationship approach, what is interesting is that you can obtain forecasts for X and Y based on the VECM (without known X) and from the LT with known X. This gives you a way to have an idea of the accuracy of your model (comparing known and predicted X), which you could use to create a forecast averaging scheme for your Y?

            Source https://stackoverflow.com/questions/43323832

            QUESTION

            vega won't update until the mouse has brushed over the div containing the chart
            Asked 2019-Dec-09 at 19:53

            I ran into a subtle vega update behavior that I hope to get your help on --- when I use the view API to update the signal for a visual element (e.g., a brush), the UI doesn't appear to update until I move my mouse over to the div --- in the notebook, this can create a jarring experience. Is there any way to "eagerly" perform the update?

            You can run the following JSON and run the script below in the console to reproduce the effect that I am talking about. Thanks!

            Have the following spec in Vega Editor

            ...

            ANSWER

            Answered 2019-Dec-09 at 19:53

            After updating a signal, call runAsync() to invoke an update. The behavior that you see where the view updates when you hover over it comes from the fact that Vega listens to hover events and invokes an updates.

            Source https://stackoverflow.com/questions/59255654

            QUESTION

            How to convert txt file to json using leading spaces?
            Asked 2019-Oct-21 at 22:35

            I have formatted txt file looks like this:

            ...

            ANSWER

            Answered 2019-Oct-21 at 22:35

            You can use itertools.groupby with recursion:

            Source https://stackoverflow.com/questions/58443548

            QUESTION

            How to fix IE stretching of PNGs?
            Asked 2019-Aug-27 at 05:50

            I am using object-fit property to size all .PNG files and make them fit in a div. This looks great on Chrome but the .PNG files are stretched on Internet Explorer.

            I have used a few methods found on SO but nothing seems to make it not stretch. I'm at a loss. Please help and keep in mind I am still learning please. Thanks!

            ...

            ANSWER

            Answered 2019-Aug-27 at 05:50

            From this link, we can know that the object-fit CSS property not support IE browser.

            As a workaround, you could display the image as a container background image, then, using the CSS background-size, background-repeat and background-position Property to resize the Image and set the position.

            More details about CSS background property, please check the following link.

            CSS background Property

            Besides, you could also refer to this sample, and use Javascript to detect the browser, then reset the CSS style.

            Source https://stackoverflow.com/questions/57378833

            QUESTION

            How to test if MIDAS.DLL is loaded?
            Asked 2019-Mar-18 at 22:07

            I use Datasnap on Delphi 2007. In a few specific machines when the user try to open the app, he gets the 'Error loading Midas.DLL' error and the app crashes.

            I never could identify in what scenario this occurs, because i always distribute MIDAS.DLL with my apps and this file is always present in the same folder than the app EXE.

            I know i could uses MidasLib to avoid that, but i can't do this because my app uses a cracking protection that crypto the EXE and ends up not being compatible with Midaslib embedded. So Midaslib is not an option for me.

            So what i'm trying to do is to run a small test when the app to check if Midas.DLL is loaded BEFORE the app crashes, so i can be pro-active and register the DLL before the app crashes.

            Here is what i tried :

            ...

            ANSWER

            Answered 2019-Mar-18 at 21:12

            Delphi determines where to load Midas.Dll from by examining a registry key. Take a look at the source code of CheckDBClient in DSIntf.Pas which should be in your [Delphi\Source\VCL folder.

            You'll see that this CheckDBClient routine generates the exception you are seeing, so there's really no need to check whether Midas.Dll is loaded, though you could use the method Remy suggests in a comment to check the value of the global var DbClientHandle which is initialized (or not) by CheckDbClient.

            CheckDBClient is called via CreateDbClientObject in the call to TCustomClientDataSet.CreateDSBase in DBClient.Pas.

            To fix the error, register Midas.Dll from a command prompt using Delphi's TRegSvr.Exe or Windows' RegSvr32. Or you could register it yourself in your project's start-up code. Delphi comes with the source code of TRegSvr (check your [delphi]\demos\activex folder) so you can see for yourself how it does the registration process.

            Source https://stackoverflow.com/questions/55229025

            QUESTION

            Exception User-Unhandled reported in VS Debugger when using Polly
            Asked 2019-Feb-10 at 08:47

            I'm using Polly to catch an exception while calling a Pittney Bowes Geocoder service. I'm using a g1client library that throws a MessageProcessingException. I've wrapped the call in a Polly network policy to retry the call up to 3 times if this exception is thrown, but Visual Studio insists that the exception is "User-Unhandled" What do I need to modify to make this exception be handled? I'm using Visual Studio 2017 community Edition and C# 4.6.1.

            ...

            ANSWER

            Answered 2019-Feb-10 at 08:47

            TL;DR You are just seeing the VS debugger breaking on exceptions.

            You may be understanding the Visual Studio Debugger's (inherently confusing) terminology user-unhandled exception to mean that the executing codebase as a whole is not handling the exception; this is not the case.

            User-unhandled exception in this case means that the exception is first handled other than by your code - here, by the Polly policy.

            First, Visual Studio divides code you are debugging into 'my code' aka 'user code', and 'non-user code'. In your scenario, Polly and the Geocoder library will be classified 'non-user code'.

            Second, by default, the Visual Studio debugger breaks[+] on exceptions handled by 'non-user code' (but using this potentially confusing and alarming term 'user-unhandled'!).

            Visual Studio breaks[+] by default so that you can see the line that triggered the exception as it happened (even if subsequent code will handle it...). So, it sounds (dpdg on debugger settings) as if you are seeing Visual Studio breaking, even though the exception will be handled as configured by the Polly policy. Just press F5/Continue in the debugger, and the subsequent code will resume.

            You can also change this behaviour[+] by following the instructions in this article under the heading Tell the debugger to continue on user-unhandled exceptions.

            You can further satisfy yourself the Polly policy is working by examining the behaviour of the line System.Diagnostics.Debug.WriteLine("Exception being retried" + exception);. You should see output from that line - or see it hit if you set a breakpoint on it - if retries are being invoked.

            Finally, a Polly retry policy rethrows any final exception if all configured retries have been exhausted. This is intentional - to indicate that eventuality - not a failure.

            You correctly have a try { ... } catch (MessageProcessingException ex) { ... } for this, but the debugger may again misleadingly label that final exception 'user-unhandled' - even though you have a try-catch for it - due to its initially being caught by Polly.

            Source https://stackoverflow.com/questions/44057939

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            Vulnerabilities

            No vulnerabilities reported

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            You can download it from GitHub.

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