metadata

Is there a way to find the QMetaObject instance of a class, given the class name? what I like to do is to load objects from disk, but for this to happen, I need a way to retrieve a QMetaObject instance using the name of a class, in order to use the QMetaObject to create an instance. You should be able to do this with QMetaType . You might need Q_DECLARE_META_TYPE() and/or qRegisterMetaType() to make your types known. Then it should work roughly like in this example from the link: int id = QMetaType::type("MyClass"); if (id == 0) { void *myClassPtr = QMetaType::construct(id); ... QMetaType:

I want to add a copyright notice in my svg files and it should be only "hidden" text and no watermark. This is no real protection, because if you open a svg file with a text editor you can edit everything and delete the copyright. But I think this would be a simple and great way to show, who has made the file and a possible chance to find unlicensed graphics if there is some hidden information and if you are looking for it you can easily find it. My main question is: how should the copyright text be put into the file? <title> element is for accessibility purposes, some user agents display the

I need to extract ID3 tags and meta-data of remote mp3 files. I wrote few lines that could get ID3 tags of local file: from mutagen.mp3 import MP3 import urllib2 audio = MP3("Whistle.mp3") songtitle = audio["TIT2"] artist = audio["TPE1"] print "Title: " + str(songtitle) print "Artist: "+str(artist) I need to achieve this for url links for mp3 files. I tried to get partial download of files using urllib2. import urllib2 from mutagen.mp3 import MP3 req = urllib2.Request('http://www.1songday.com/wp-content/uploads/2013/08/Lorde-Royals.mp3') req.headers['Range'] = 'bytes=%s-%s' % (0, 100) response

What is Conditional Random Field ? How does exactly Conditional Random Field identify proper names as person, organization, or place in a structured or unstructured text? For example: This product is ordered by StackOverFlow Inc. What does Conditional Random Field do to identify StackOverFlow Inc. as an organization? A CRF is a discriminative, batch, tagging model, in the same general family as a Maximum Entropy Markov model. A full explanation is book-length. A short explanation is as follows: Humans annotate 200-500K words of text, marking the entities. Humans select a set of features that

I have been working on a huge ETL project with 150+ tables and during the design I had to make a major change on destination column names and data types for a couple of tables. My problem is that I can't get SSIS to see the new schema for the tables I changed. So I would like to know how can I get SSIS to refresh this schema? I find it kind of ridiculous that there no way to tell SSIS to update the metadata from database schema, especially for database migration. Recreating the project from scratch is out of question because I already spent some hours on it. Also changing manually the 400+