gpy | Go 语言汉字转拼音工具 | Keyboard library

 by   go-ego Go Version: v0.40.3 License: Apache-2.0

kandi X-RAY | gpy Summary

kandi X-RAY | gpy Summary

gpy is a Go library typically used in Utilities, Keyboard applications. gpy has no bugs, it has no vulnerabilities, it has a Permissive License and it has low support. You can download it from GitHub.

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              gpy has a low active ecosystem.
              It has 140 star(s) with 24 fork(s). There are 13 watchers for this library.
              OutlinedDot
              It had no major release in the last 12 months.
              There are 2 open issues and 3 have been closed. On average issues are closed in 1 days. There are no pull requests.
              It has a neutral sentiment in the developer community.
              The latest version of gpy is v0.40.3

            kandi-Quality Quality

              gpy has no bugs reported.

            kandi-Security Security

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

            kandi-License License

              gpy 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.

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

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            gpy Examples and Code Snippets

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            Community Discussions

            QUESTION

            Is there a way to define a 'heterogeneous' kernel design to incorporate linear operators into the regression for GPflow (or GPytorch/GPy/...)?
            Asked 2020-Nov-26 at 12:06

            I'm trying to perform a GP regression with linear operators as described in for example this paper by Särkkä: https://users.aalto.fi/~ssarkka/pub/spde.pdf In this example we can see from equation (8) that I need a different kernel function for the four covariance blocks (of training and test data) in the complete covariance matrix.

            This is definitely possible and valid, but I would like to include this in a kernel definition of (preferably) GPflow, or GPytorch, GPy or the like.

            However, in the documentation for kernel design in Gpflow, the only possibility is to define a covariance function that acts on all covariance blocks. In principle, the method above should be straight-forward to add myself (the kernel function expressions can be derived analytically), but I don't see any way of incorporating the 'heterogeneous' kernel functions into the regression or kernel classes. I tried to consult other packages such as Gpytorch and Gpy, but again, the kernel design does not seem to allow this.

            Maybe I'm missing something here, maybe I'm not familiar enough with the underlying implementation to asses this, but if someone has done this before or sees the (what should be reasonably straight-forward?) implementation possibility, I would be happy to find out.

            Thank you very much in advance for your answer!

            Kind regards

            ...

            ANSWER

            Answered 2020-Nov-26 at 12:06

            This should be reasonably straightforward, though requires building a custom kernel. Basically, you need a kernel that can know for each input what the linear operator for the corresponding output is (whether this is a function observation/identity operator, integral observation, derivative observation, etc). You can achieve this by including an extra column in your input matrix X, similar to how it's done for the gpflow.kernels.Coregion kernel (see this notebook). You would need to then need to define a new kernel with K and K_diag methods that for each linear operator type find the corresponding rows in the input matrix, and pass it to the appropriate covariance function (using tf.dynamic_partition and tf.dynamic_stitch, this is used in a very similar way in GPflow's SwitchedLikelihood class).

            The full implementation would probably take half a day or so, which is beyond what I can do here, but I hope this is a useful starting pointer, and you're very welcome to join the GPflow slack (invite link in the GPflow README) and discuss it in more detail there!

            Source https://stackoverflow.com/questions/64967921

            QUESTION

            How to Save/Load Optimized GPy Regression Model
            Asked 2020-Oct-27 at 15:44

            I'm trying to save my optimized Gaussian process model for use in a different script. My current line of thinking is to store the model information in a json file, utilizing GPy's built-in to_dict and from_dict functions. Something along the lines of:

            ...

            ANSWER

            Answered 2020-Oct-27 at 15:44

            The module pickle is your friend here!

            Source https://stackoverflow.com/questions/64557786

            QUESTION

            Error gyp ERR! stack Error: `C:\Program Files (x86)\MSBuild\14.0\bin\MSBuild.exe` failed with exit code: 1 while isntalling Node on my project
            Asked 2020-Oct-23 at 09:14

            I'm trying to execute the command inside the root folder of a spring project: npm install natives@1.1.6

            The problem is that each time that I execute the command I get an error (shown bellow “error-natives”) no matter what I try.

            ...

            ANSWER

            Answered 2020-Oct-23 at 09:14

            My walkaround to this problema is detailed in the update 2, but it's basically what I explained here: I’ve seen in this link (Error: C:\Program Files (x86)\Microsoft Visual Studio\2017\BuildTools\MSBuild\15.0\Bin\MSBuild.exe failed with exit code: 1) that some people tried a downgrade in the node version, I was using originally the version 12 and some say that with version 10 should work. After that I can perform the four steps provided in the answer:

            Source https://stackoverflow.com/questions/63769647

            QUESTION

            Parallelization for three loops of a C++ code?
            Asked 2020-Oct-15 at 14:29

            How can i parallelize this code using openmp: xp, yp, zp, gpx, gpy, and gpz are known 1D vectors.

            ...

            ANSWER

            Answered 2020-Oct-13 at 14:36

            You already have an omp parallel for pragma on the innermost loop. To give that effect, you probably need to enable OpenMP support in your compiler by setting a compiler flag (for example, with the GCC compiler suite, that would be the -fopenmp flag). You may also need to #include the omp.h header.

            But with that said, I doubt you're going to gain much from this parallelization, because one run of the loop you are parallelizing just doesn't do much work. There is runtime overhead associated with parallelization that offsets the gains from running multiple loop iterations at the same time, so I don't think you're going to net very much.

            Source https://stackoverflow.com/questions/64336192

            QUESTION

            How can I speed up a code C++ using OpenMP?
            Asked 2020-Oct-13 at 22:55

            I am trying to parallelize the following code C++ using OpenMP:

            ...

            ANSWER

            Answered 2020-Oct-13 at 22:55

            There is no real answer to this question, but I'd like to distill some of the more important optimizations discussed in the comments. Let's focus on just the inner loops.

            Primarily, you need to avoid excessive multiplications and function calls. And there are some tricks that aren't guaranteed to be optimized by compilers. For example, we know intuitively that pow(x, 2) just squares a value, but if your compiler doesn't optimize this, then it's much less efficient than simply x * x.

            Further, it was identified that the O(N2) loop actually can be reduced to O(N2/2) because distances are symmetric. This is a big deal, if you're calling expensive things like pow and sqrt. You can just scale the final result of E1 by 2 to compensate for halving the number of calculations.

            And on the subject of sqrt, it was also identified that you don't need to do that before your distance test. Do it after, because the test sqrt(d) < 5 is the same as d < 25.

            Let's go even further, beyond the comments. Notice that the < 5 test actually relies on a multiplication involving kes. If you precomputed a distance-squared value that also incorporates the kes scaling, then you have even fewer multiplications.

            You can also remove the kk value from the E1 calculation. That doesn't need to happen in a loop... probably. By that, I mean you're likely to have floating point error in all these calculations. So every time you change something, your final result might be slightly different. I'm gonna do it anyway.

            So... After that introduction, let's go!

            Source https://stackoverflow.com/questions/64330128

            QUESTION

            How to fix some dimensions of a kernel lengthscale in gpflow?
            Asked 2020-Sep-29 at 10:19

            I have a 2d kernel,

            ...

            ANSWER

            Answered 2020-Sep-29 at 10:19

            GPflow uses a single tf.Variable for each parameter - such as a kernel's lengthscales - and TensorFlow only allows you to change the trainable status of a Variable as a whole. Having a separate parameter per dimension would not be easy to implement for arbitrary dimensions, but you can easily subclass the kernel you want and override lengthscales with a property as follows:

            Source https://stackoverflow.com/questions/64116004

            QUESTION

            Invalid version specification on Shiny app
            Asked 2020-May-11 at 07:56

            When I try to deploy my (reticulate-powered) Shiny app to shinyapps.io, I get the following error:

            ...

            ANSWER

            Answered 2020-May-01 at 17:07

            I actually found a solution for this issue. Since the bugged version of pip gets installed as soon as your create the virtualenv, I forcibly uninstalled it and then installed the version that worked when I built my app. Here is the code that I used:

            Source https://stackoverflow.com/questions/61361954

            QUESTION

            Using GPy Multiple-output coregionalized prediction
            Asked 2020-May-05 at 21:57

            I have been facing a problem recently where I believe that a multiple-output GP might be a good candidate. I am at the moment applying a single-output GP to my data and as dimensionality increases, my results keep getting worse. I have tried multiple-output with SKlearn and was able to get better results for higher dimensions, however I believe that GPy is more complete for such tasks and I would have more control over the model. For the single-output GP I was setting the kernel as the following:

            ...

            ANSWER

            Answered 2020-May-05 at 21:57
            problem

            you have defined the kernel with X of dimention (-1, 4) and Y of dimension (-1, 1) but you are giving it X_pred of dimension (1, 1) (the first element of x_pred reshaped to (1, 1))

            solution

            give the x_pred to the model for prediction (an input with dimension of (-1, 4))

            Source https://stackoverflow.com/questions/61475796

            QUESTION

            How to configure VSCode so IntelliSense works for MicroPython system libraries?
            Asked 2020-Mar-19 at 16:41

            My specific question is related to MicroPython development on Pycom's GPY with Pytrack expansion board. I also have Pycom's Pymakr extension for VSCode installed as well. But I feel the question can be asked and answered more generally and I'll try to do that...

            When doing development on Micropython, you will have application specific libraries that you load from ./lib but you also load system libraries such as import [ pycom | pyboard | your_board ] which are not available to VSCode since they are not in your workspace folders, but they are available at runtime on the board.

            How do you make these available to VSCode so IntelliSense will work correctly AND you won't see import errors in VSCode?

            ...

            ANSWER

            Answered 2020-Mar-19 at 16:41

            I have ESP32 so my config sample will be ESP32 based. Download https://github.com/lixas/ESP32-Stubs-VSCode

            OR

            Use following to generate for your board: https://github.com/Josverl/micropython-stubber and download those files from board

            My settings.json file:

            Source https://stackoverflow.com/questions/60746276

            QUESTION

            GPy and GPflow mathematical background - references
            Asked 2020-Mar-10 at 18:10

            Does GPy and GPflow share a common mathematical background? I'm asking this because I'm using GPy but I cannot see the references. However, GPflow provides references in its examples.

            Is it Ok using keep using GPy or would you suggest the use GPflow inmediately for gaussian processes purposes?

            ...

            ANSWER

            Answered 2020-Mar-10 at 18:10

            That would depend on what you are actually doing. The very basic GPs should be similar, just that GPflow relies on tensorflow for the gradients (if used) and probably some technical implementation differences.

            For the other more advanced models, both libraries provide references to the respective papers in the docs. In my opinion, GPflow's design is mainly centered around the SVGP framework from [1] and [2] (and many other extensions.. I can really recommend [2] if you are interested in the theory). But they still do provide some other implementations.

            I use GPflow since it works on the GPU and offers a lot of state-of-the-art implementations. However, the disadvantage would be that it is under a lot of change.

            If you want to use classic GPs and are not too concerned with performance or very up-to-date methods I'd say GPy should be sufficient and the more stable variant.

            [1] Hensman, James, Alexander Matthews, and Zoubin Ghahramani. "Scalable variational Gaussian process classification." (2015).

            [2] Matthews, Alexander Graeme de Garis. Scalable Gaussian process inference using variational methods. Diss. University of Cambridge, 2017.

            Source https://stackoverflow.com/questions/60286868

            Community Discussions, Code Snippets contain sources that include Stack Exchange Network

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