RDFa Basics

[@mattlowder]

As a graduate student, I'm glad a ten year old video still has its use.

[@GibranMakyanie]

This is the best video explaining RDFa and its link to semantic web ?RDF (subject) -- awesome:link (predicate) --> ?semanticweb (object) Thanks!!

[@theacid1]

7:17 Why are there two separate person nodes in the graph? I would consider person as one node to show that Jane and Mac are derived from the same type.

[@ifithegr8]

What a great Video .You simply Rock.............Keep the gud work Up

[@justynalisinska355]

Excellent video and explanation, shame you stopped doing them

[@shadenperri]

Excellent!

[@lallaaichakone2106]

Wonderful explanation. Keep it up

[@tinni19995]

lol you are great dude!! easy and funny way to learn this... KEEP IT UP

[@Umedzhoni1]

Thank you. Really simple explanation.

[@NarendherRao]

Second video link is not woking. Can you send a working link?

[@Platinger]

I don´t really see the point in this. I work as a webdesigner. What´s the benefit for my customers if I write more code (= taking longer = costing more). Do the search engines like this kind of pseudo-semantic informations? Will contents of webpages be found easier and faster? I mean I like semantic html, but this... Does anybody understand what I mean?

[@chatsociety]

Where's the second video?

[@ManuSporny]

Unfortunately still not made. I haven't been able to find the time to do so.

[@mical33l]

Great tutorial, thanks.

[@simerpreetanand516]

Thanks! for the video.

[@abdulrahmanhashem6260]

Thanks for this video Just to be more accurate, shouldn't #Jane & #Mac nodes point to the same Person class node?

[@carpediematlas]

Super cool stuff! Thanks for sharing :)

[@radsimu]

This is just a way of creating a web of relations between object. You can define your objects and your relations. And this web can be queried very precisely like a database. Computational linguistics is trying to make tools to automatically create rdf out of content. And the main benefit that this is trying to bring to the web as you know it is to have the content of the web pages described in this manner. So imagine having such an rdf for all the content on the net.

[@rafiazaheer3947]

Helpful..great video... :)

[@ManuSporny]

Sorry, that link has been dead for a long time now. I'll remove it. I still probably have it sitting on my home computer, if you really need it.

[@tuseroni6085]

the issue i see is that, it's useful for me that OTHER people use this, but not useful to me to use it myself. i would have to mark up my pages to provide the information but the marked up page isn't useful to me personally, only to people looking to use my page for linking. now if my HTML could have a sparql query or something in it that let it generate a page without needing a server side language, and which would generate the page using rdfa, that would be something useful for a developer and for others as well

[@OsamaMohamedEid]

thanks a lot... it is very awesome :)

[@dunken69]

Yay, brilliant!

[@apohoyda]

Great video! The first half is especially nice, bravo! Please consider using foaf:name instead of <foaf:name> in your N3 example. Don't you have a feeling that putting semantics into HTML is just as wrong, or maybe even worse than mixing style and structure?

[@davidnixon771]

HI Manu - I am not a developer, but a content provider with a healthy, albeit limited, interest in the back end shenanigans. What interests me here is that you have described a process which uses Nouns (Subject & Object) and Verbs (Predicates.) The question that immediately occurs to me is 'what about about adjectives?' In human speech it is adjectives that add greater depths of meaning and elevate language from the mechanical to the poetic. Is there a place for adjectival values in RDFa?

[@ManuSporny]

David Nixon ... yes, there is room for adjectives. In fact, predicates are not verbs, but really about relationships... like brother, daughter, mom, etc. Verbs and adjectives are also supported via predicates. Dave likes cookies. Cookies contain chocolate. Chocolate is bittersweet. Dave consumed cookie. Etc. The model is very flexible.

[@tuseroni6085]

@@ManuSporny all of those are verbs (contain, id, consume, all verbs) for an adjective you would need something like cookies contain much chocolate, or dave likes large cookies.

[@Said9967]

Great !

[@apohoyda]

But in your example, the human-readable text "Jane is friends with Mac" is not in sync with the machine-readable data "#jane foaf:knows #mac". You can change the text and the data could stay. Do you call this "in sync"? Aren't you asking people to keep text and data "in sync"? Is there a way to generate the text "Jane is friends with Mac" from the data "#jane foaf:knows #mac". It's not obvious from your example.

[@d.dheeraj196]

Nice explanation

[@McAko]

I'm very skeptical about the capability of computers to really understand natural language and extract knowledge and reasoning about this data. I think the AI field will have to improve a lot to have succesful results on reasoning in the world of semantic web.

[@dhruvlaleja5092]

thanks for the video it was great...... please send us the ppt if you can.. :)

[@oberrada]

thanks

[@lancsFrogger]

glad the guy ended up writing "dave likes cookies" - until the dude wrote the 2nd o i thought he was gonna write something else & was taking the piss outta me (must be paranoid cos i don't have a girlfriend)

[@radsimu]

And this huge web would become like a global brain. There already are solutions to translating a natural language question into a database style query. So the user will be able to naturally ask the computer complex questions and get precise responses. This google thing is just an example but the power of such technology is hard to describe. Governments could parse emails and phone calls. Having all this knowledge, AI will flourish because the main problem of AI is the lack of knowledge base.

[@apohoyda]

I also don't think that having more triples will help computers to "understand" anything. More triples will only allow computers to do simple computations on data, but not more. This could be used by AI in the future, but by itself triples bring no understanding, IMO.

[@markcadano1029]

Paint Mastah

[@jorgevega3743]

dave likes cook...ies