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Semantic Web Stack or Semantic Web Cake or Semantic Web Layer Cake
Hi All,I am new to semantic web. I stumble upon semantic web stack (Semantic Web Cake or Semantic Web Layer Cake), and found out there are several variations for it i.e -What is the difference between...
View ArticleSemantic annotation of IOT data
From last few days I am trying to annotate the data received from the sensors. Data mostly consists of different readings from sensor nodes. For the same I followed some books and covered tutorial at...
View Articletriple store for storing data/measurements generated from sensors
I want to store data readings generated from sensors in a triple store. Number of sensors are more than 50 and the data generated by these consists of certain measurements like temperature reading or a...
View ArticleSemantic web: Entity vs. Concept vs. Class
Hello all, I am a newbie with Semantic web. I have a lot of papers related to SW, but still confuse about the terms: Entity, Concept, Class Some papers define them as synonyms, where other describe...
View ArticleNew to semantic web
Hello everybody,I just learned about the semantic web yesterday and yet read a lot about because I have many interest in it. There are just two things which I can't get a clear view of. I tried to...
View ArticleUse of E-commerce Ontology
Hello all, I recently came to know about the GoodRelation Onotlogy that have information about commerce data, also there are some websites that use this ontology, but other details are unavailable in...
View ArticleCreating an OWL sub-class based on the equality of two object properties
Consider that I have classes A and B in OWL. They both have two different object properties P1 and P2 whose ranges are class C.I want to create a class D which represents any A that contains an object...
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Use an ontology to store CSV data into RDF form
Problem Definition: Store sensor data (temperature readings, sensor description) into rdf form using an ontoloy. Further, use SPARQL to perform queries on stored data.My Approach: I am not an expert in...
View ArticlePython package to search ontologies
Is there a Python package that lets me search ontologies for certain predicates? I know that there are semantic search engines, but I need a tool that I can use with Python.
View ArticleShould I still publish geospatial data with OGC standards?
Hi everyone! This is kind a complex question and I know there's not a right or wrong or even a definitive answer, but I need help to make some decisions.Usually, when one works with publishing...
View ArticleHow to avoid repeated company names and group them as a one category in sparql?
I have following query link text , you can find each company name for example amazon web service repeated several times regarding to its locations or its product. I have tried different solution with...
View ArticleSpecifying class equivalence in Jena rules
Given an ontology with Class A and Class B I am stating a rule : [-> (ns:Class_A owl:equivalentClass ns:Class_B)]However the Jena generic rule reasoner is only applying the tag equivalentClass to...
View ArticleJena Rules : how to detect when value of an individual changes ?
Suppose if there exists a Class Bug which has data property hasStatus, So if the current value is "Closed" and the property value changes to "Open", how would i detect change in the property via Jena...
View Articlejena library in order to Diagnosis disjointwith classes
How i can start a reasoner on dbpedia owl in jena library in order to Diagnosis disjointwith classes?
View Articlereasoning on dbpedia Ontology in level T-box
how can i reasoning on dbpedia Ontology in level T-box?
View ArticleOntology Creation
Hello, My Self Yash, Currently pursuing MCA Final Year. I have research Topic on personalized Search. I am thinking to develop a web based application with web ontology, can some one guide me how to go...
View ArticleOWL-S semantic services creation and execution
Hi,I'm trying to improve the semantic web services' discovery to satisfy better the user. For that, I choose to use OWL-S. So I created an ontology using Protégé then I generated semantic web services...
View ArticleFederated SPARQL query using dbpedia
Hello,I want to indicate that an entity in my dataset is a particular vaccine in dbpedia. After asserting the information, I'd like to infer the properties of the said vaccine from dbpedia. How should...
View ArticleRich content exploration (entity-linking)
Hi, I'm looking for some online demo that illustrate the rich content exploration in practice. In other looking at content that that has been to several entity and provide a nice exploration. E.g. Look...
View ArticleRepresentation of Sentences containing intransitive verb
How to represent sentences in DL that contain intransitive verb?
View ArticleState of the art in using rule languages with OWL ontologies
I understand that the present landscape for rules is this:SWRL -> biggest support, some documentation available, easy to apply with Protege, easy to serializeRIF -> apparently an upgrade of SWRL,...
View ArticleHow to speed up results for queries against AGROVOC?
i queried AGROVOC SPARQL endpoint to return related domain concepts and the query took approx 20 seconds to return the result set for a single concept. i'm about to implement this in a webapp as a...
View Articlehow to apply a function on an literal in SPARQL
I have this SPARQL query:construct { ?subject0 ?predicate0 ?similairty0. ?subject1 ?predicate1 ?similairty1 } WHERE { { ?subject0 ?predicate0 ?object0. owbes:Dies_Irae ?predicate0 ?object0. ?predicate0...
View ArticleUsing Vocabularies in dotnetrdf and making sparql queries
I am new to semantic web and even to c#. I recently installed a library dotnetrdf and i dont find the user guide so user friendlyCan anyone please tell me how do I use Rdf vocabularies like foaf , dc ,...
View ArticleLanguages for Semantic Web programming
Hello,Which language contains the best tools for Semantic Web programming? I am used to work with Java, but it seems Python is being very requested.Thanks in advance,Guilherme
View ArticleInformation About Sparqal queries
I am using Jena Api(2.6) to store ontology model in database Sparql query(selection) is working correctly but Modify Delete and Update query is not working. Kindly help me on that I am stuck on this.
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How to make a new owl file from selected classes and properties in another...
Hello everyone. i have an issue in my final project. i want to make new OWL file from particular model (classes, properties, etc) that created in other owl file. for example in the picture below we can...
View ArticleA guide to studying ontology alignment using OWL RDFS
I am new in semantic web. Looking for resources that explains the subject mentioned things better. Any help?
View ArticleQuery about sensor data to RDF Conversion?
Hi all,Can anyone tell me automated tool that can convert simple/raw data into RDF/TTL file?Here simple data means: Suppose I have collected sensor information from sensor node, now I want to write the...
View ArticleHow to do Semantic classification using RDF file format??
Hi:I am new to semantic web classification. I am looking to use this methodology on raw text data(like: Chat data). I have below questions: please help 1. Is there any way/library to convert CSV file...
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