rdf

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how to search rdf with sparql using java?

I am doing project in semantic web where i use SPARQL to query rdf data.I used java in netbeansand my problem is my program runs,inputs the rdf file and the query executes but the WHERE area of my que[详细]

2023-03-31 15:12 分类：问答
Let the user enter the filename

I created an interface that allows to add instances in an rdf file. I put the filepath in the readRDFfile parameter and the same filepath in Filewriter (in order to update the file when user add insta[详细]

2023-03-29 23:49 分类：问答
Ruby on Rails SPARQL client

I\'m currently working with the Ruby on Rails SPARQL client to try and retrieve information from the public SPARQL endpoint at dbpedia. The generic query I\'m running is the following:[详细]

2023-03-29 20:22 分类：问答
GDF or SIF or RDF conversion to obj or collada [closed]

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.[详细]

2023-03-29 17:38 分类：问答
SPARQL, RDF & processing Data

I\'m new to this entire semantics stuff, and i\'ve been plunged into a project which requires me to use the SPARQL endpoint from dbpedia to retrieve information about certain things such as a City for[详细]

2023-03-29 15:38 分类：问答
selecting using sparql based on 'triple does not exist'

I need a little help selecting the right triples from my st开发者_JS百科ore.... <a> a <type/1> .[详细]

2023-03-28 23:53 分类：问答
I cannot remove values of data type properties in Jena

I\'m trying to remove values of datatype properties of an instance through an interface which I created in java but it does not work. It gives me an[详细]

2023-03-28 13:38 分类：问答
How can I modify or remove properties values? - Jena API

I\'m using Jena. I would like to know if there is a method that allows to modify or remov开发者_JAVA百科e properties values of an instance?[详细]

2023-03-28 04:41 分类：问答
Taxonomy hierarchy representation format

We are planning to integrate a hierarchical taxonomy in our software solution. (Java based) Is there a standardized (and easy to use) format to represent hierarchical taxonomies? A format which would[详细]

2023-03-28 00:14 分类：问答
API Jena - Button "Next" of my interface is not working properly

I\'m using Jena. I created an interface that allows to add, modify and remove instances in rdf file. I have a problem with Button Next. It works but not perfectly. I would like that it returns to the[详细]

2023-03-27 19:49 分类：问答