Data are values of qualitative or quantitative variables, belonging to a set of items. Data in computing (or data processing) are represented in a structure, often tabular (represented by rows and columns), a tree (a set of nodes with parent-children relationship) or a graph structure (a set of ...
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89 views
What are the bad points of using Core Data for iOS like an ORM
I just starting to use Core Data for my iOS app and I am thinking about how use Core Data for my needs.
What are the features of my app:
The user look for products proposed from a catalog.
The user ...
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102 views
using flat file vs sqlite db for frequent data grabbing in a cron job
I have some automated task to be done using certain types of logs generated on the server end of each day. Log files contains specific machine identification "MAC" that is to be re-written in to ...
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177 views
Single write, multiple read of stateful objects
Scenario:
One data input feed (call this Source)
Multiple objects (call these Layer1) read this Source, and analyze the feed. This analysis is stateful.
Layer1 objects have configuration parameters. ...
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151 views
How to organize integration tests and test data for different environments when using Maven Failsafe
I have started to separate my unit tests from my integration tests by using Maven Surefire and Failsafe.
Now I'm wondering what good ways there are to deal with separate environments. Take for ...
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33 views
Efficiently storing and parsing client's browser details
Do there exist browser fingerprinting API's that instead of running browser information (e.g. the user agent, installed plugins, screen resolution, system fonts etc.) through a hash function, instead ...
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50 views
Converting large files in python
I have a few files that are ~64GB in size that I think I would like to convert to hdf5 format. I was wondering what the best approach for doing so would be? Reading line-by-line seems to take more ...
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135 views
How to parse multipart field/file data separately?
I want to parse a multipart form twice: Once to grab the incoming fields, and later to process the file upload.
I am trying to maintain a proper separation of concerns within my Node app:
...
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16 views
versioning data schema in android internal storage
I am using Android's internal storage to hold data for my application and I am trying to find a good way to handle reading data of an older schema. For example, let's say I have serialized and written ...
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30 views
modelling data / UI models in relation with the Data Layer
I have a user interface in Asp.Net MVC, which would for example need to load a list of products to show. Let us assume this calls ProductRepository.GetProducts() . In the data layer, I have a class ...
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26 views
What data should QR-Code contain to serve both my own and external QR-Code reader
My webapplication uses codes (in form of http://www.url.com/code/105820582020204), that I want to encode as QR-Code. I assume that such generated QR-Code will be scanned by both people using my mobile ...
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83 views
Searching in a large dataset
I am working on a model of social interactions in mice. I have mice and boxes and a simulation that outputs which mouse stays in which box during which time period. The problem is how to obtain, in ...
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130 views
why are safearray structures seen differently in visual basic.net then c++? (interop)
I seem to see some components on the web that still use com and require a safe array of variants. It seems from research that sometimes object in vb.net does not cut it (I currently have a com library ...
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113 views
Matching two lists of data with different conventions
I have two lists of data, A and B. These lists are themselves aggregated from multiple sources, and contain typos, abbreviations not found in the other, and also lack a 1-1 mapping, but will never ...
