Having problems in understanding the flow of flow graph - scheduling

can somebody explain the graph below. I seriously dont understand it and the explanation that given also kind missing some key informations
Im expecting someone to explain me the flow of the jobs

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PHP Source code that help user sharing their favorites song/novel/comics

I'm looking for a source code that help me making list of songs/novels/comics and user can add it to their favorites so that others can see it.
It's may have the function like dicussion board too...
But i can't find any. Anyone can tell me that there are source code that can make it?
It'd be great if there are...
I can not coding so i'm looking for a ready to use...
Thank for your reading time.
Vuong Quoc.

How does SelectionIdBuilder work?

I'm trying to understand how the SelectionIdBuilder works. I'm especially trying to understand when and how to use .withMeasure and .withSeries. The information in GitHub (here) didn't enlighten me. I can't find any real examples of code using either .withMeasure or .withSeries.
I got my visual to work, using only .withCategory, based on other visuals I saw, but I want to really understand the SelectionIdBuilder.
I'd sure appreciate an education regarding how SelectionIdBuilder works and where I might find more detailed info about it.

programming collective intelligence by toby segaran. How schema works?

I am studying his schema but got confused how and to whom "fromid" from link is making a relation with inside urllist? or it is a misprint ? Its chapter 4 Searching and Ranking and figure 4-1. My eyes gone blind for as i have read so much but could not able to understand even the purpose of "fromid".
Here is the Book link as: http://www.uploadmb.com/dw.php?id=1447327761
Please help Thanks.

Error code 368 on post on like

Recently, my application started to generate a new error whenever a customer uses it to like a post/comment. We use the graph API to create and destroy likes:
https://graph.facebook.com/POST_ID/likes
But we get a status 400 with the following body upon a POST:
{"error":{"message":"You've been blocked from using this feature because you may have violated Facebook's Terms. Please review the Community Standards to learn what's acceptable to share on Facebook.\n\nIf you need help, please contact us.","type":"OAuthException","code":368}}
To be honest, it is hard for me to understand what my customers might have done to deserve this and I can't find any obvious way to "contact us". Is there someone who knows what might trigger this kind of error and what I could do to help my customer resume normal operation ?
Mathieu

could anyone give me help on ground-truth data

I recently came to a term in one of my email communicatons with my supervisor.Since I am beinging doing a data-mining project on facebook user profile,and he said I should being collecting groud-truth data.
I am very new to this term and I searched online for it,but found very few results about it in data-mining sense.
Could anyone give me an example of what this groud-truth data is in a data-mining task pleae?
Thank you very much.
Ground-truth is data annotated (generally by human) known to be sure at 100%.
It's used to train algorithm since it's what you expect the algorithm to give you.