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You can't.... easily. Think about this from the user's point of view - why should their query be terminated because someone else is making another request? Fix your query to run faster so the system doesn't grind to a halt when somebody does something unexpected.


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The "issue" is that the process could be slow because of the step 3. You may want to use a pipeline: While step 3 is still inserting notifications, have step 4 start process notifications that are already inserted. You may have to redesign how step 3 works, e.g. by splitting up the users into batches. Would it be tolerated to make the step 4 before ...


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Based on the information you have provided, that seems like a new table (KeyValues table that has three columns: foreign key, key, value where the foreign key links this new table to the existing table. This will allow the following: An arbitrary number of key/value pairs can be stored, which can be indexed and searched and you can join on queries with ...


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Cloud, put plainly, is a server for rent available online. As such, generally most of the types of hassles regarding setting up a server and making it accessible online while not putting the rest of your network at risk, is already handled for you. There are several types of clouds depending on what the cloud offers you: Storage clouds - They offer a ...


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Firstly, whenever a user is involved, there is at least one additional state involved: what if the user does not interact or use your app on any given day? This is important, because it leads to a variety of cases, e.g. If a user clicks yes on a Saturday, logons on Sunday but doesn't click a yes or a no, what do you want to show to the user? If a user ...


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There do seem to be PHP wrappers for OpenCV, such as OpenCV For PHP. Now, for the recognition part, I think that the best way to go is to use Artificial Neural Networks. ANN's can be trained to identify people within images and are more suited because they can handle relatively inconsistent inputs and produce relatively stable results. There does seem to be ...



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