Size a linked open data set

Hello In my work, I need to know the number of distinct resources in a dataset. For example, with dbpedia-fr, I'm trying select count(distinct ?r) where { ?r ?p ?l } And I'm always getting a timeout error message While with select count(?r) where { ?r ?p ?l } I'm getting 185404575 Is it a good

Re: Size a linked open data set

Hi Jean-Claude, The "select count(distinct ?r) where { ?r ?p ?l }” query is expensive in terms of database resources and would result in a huge hash table being creating to try and service it which is causing it to timeout based on the settings on the instance by whoever maintains it. On

Re: Size a linked open data set

Dear Jean-Claude, I'm not sure exactly what you meant by the "number of distinct resources in a dataset". Is it "the total number of distinct subjects" including both IRIs and blank nodes? It seems your first query counts that. Your second query seems to count the number of triples in the

Re: Where are the Linked Data Driven Smart Agents (Bots) ?

On 6 July 2016 at 20:49, Kingsley Idehen wrote: > On 7/6/16 11:38 AM, Melvin Carvalho wrote: > > > > On 6 July 2016 at 17:22, Kingsley Idehen wrote: > >> All, >> >> Smart Agents and Bots are now hot topics across the industry at large. >> >>

Re: Where are the Linked Data Driven Smart Agents (Bots) ?

On 7/6/16 12:38 PM, Ruben Verborgh wrote: > Hi, > > This is a very important question for our community, > given that smart agents once were an important theme. > Actually, the main difference we could bring with the SemWeb > is that our clients could be decentralized > and actually run on the

Re: Where are the Linked Data Driven Smart Agents (Bots) ?

On 7/6/16 11:38 AM, Melvin Carvalho wrote: > > > On 6 July 2016 at 17:22, Kingsley Idehen > wrote: > > All, > > Smart Agents and Bots are now hot topics across the industry at large. > > Bearing in mind years of knowledge and

Re: Where are the Linked Data Driven Smart Agents (Bots) ?

Hi Ruben, On Wed, 7/6/16, Kingsley Idehen wrote: "Smart Agents and Bots are now hot topics across the industry at large." bullet point - Wants are getting a little ahead of wishes, as usual :( What people already believe about Linked Data is that {an SQL right outer

Re: Where are the Linked Data Driven Smart Agents (Bots) ?

On 6 July 2016 at 17:22, Kingsley Idehen wrote: > All, > > Smart Agents and Bots are now hot topics across the industry at large. > > Bearing in mind years of knowledge and experience this community has in > regards to Bots and Smart Agents [1], are there any Linked Data

Re: Where are the Linked Data Driven Smart Agents (Bots) ?

Hi Kingsley, Not a perfect answer to your question as it is in a very early stage, yet I'm trying to develop an intelligent agent to give you route planning results across transit networks: Linked Connections [1]. By following links and discovering various other data sources, it can take

Re: Where are the Linked Data Driven Smart Agents (Bots) ?

Hi, This is a very important question for our community, given that smart agents once were an important theme. Actually, the main difference we could bring with the SemWeb is that our clients could be decentralized and actually run on the client side, in contrast to others. One of the main

Where are the Linked Data Driven Smart Agents (Bots) ?

All, Smart Agents and Bots are now hot topics across the industry at large. Bearing in mind years of knowledge and experience this community has in regards to Bots and Smart Agents [1], are there any Linked Data driven Smart Agents out there? Personally, I believe this new wave of interest in

RE: Size a linked open data set

How about reformulating as: select (count(?s) as ?c) where { select distinct ?s where { ?s ?p []} } Which gives a result of 10515620 resources [1]. Regards, John [1]