那些遇到过的问题

小编Yuc*_*Cui的帖子

在SPARQL中查询相同属性下的数据

我有这样的RDF数据:(更新,完整文件)

我得到这个RDF的来源是:http://reach.suny.edu/display/Hajagos_Janos 当你在个人资料图片下面的"回形针"按钮时,你可以下载这个文件.SPARQL端点是:http://link.informatics.stonybrook.edu/sparql/

    <rdf:RDF
    xmlns:geo="http://aims.fao.org/aos/geopolitical.owl#"
    xmlns:c4o="http://purl.org/spar/c4o/"
    xmlns:vitro-public="http://vitro.mannlib.cornell.edu/ns/vitro/public#"
    xmlns:skos="http://www.w3.org/2004/02/skos/core#"
    xmlns:ero="http://purl.obolibrary.org/obo/"
    xmlns:event="http://purl.org/NET/c4dm/event.owl#"
    xmlns:pvs="http://vivoweb.org/ontology/provenance-support#"
    xmlns:dcelem="http://purl.org/dc/elements/1.1/"
    xmlns:j.0="http://reach.suny.edu/ns#"
    xmlns:vivo="http://vivoweb.org/ontology/core#"
    xmlns:vitro="http://vitro.mannlib.cornell.edu/ns/vitro/0.7#"
    xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
    xmlns:bibo="http://purl.org/ontology/bibo/"
    xmlns:foaf="http://xmlns.com/foaf/0.1/"
    xmlns:reach="http://reach.suny.edu/ontology/core#"
    xmlns:owl="http://www.w3.org/2002/07/owl#"
    xmlns:dcterms="http://purl.org/dc/terms/"
    xmlns:scires="http://vivoweb.org/ontology/scientific-research#"
    xmlns:fabio="http://purl.org/spar/fabio/"
    xmlns:rdfs="http://www.w3.org/2000/01/rdf-schema#" > 
  <rdf:Description rdf:about="http://reach.suny.edu/individual/n2406">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Thing"/>
    <rdf:type rdf:resource="http://vivoweb.org/ontology/core#DateTimeInterval"/>
    <vivo:start rdf:resource="http://reach.suny.edu/individual/n10121"/>
    <vivo:end rdf:resource="http://reach.suny.edu/individual/n3729"/>
  </rdf:Description>
  <rdf:Description rdf:about="http://reach.suny.edu/individual/n6042">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Thing"/>
    <rdf:type rdf:resource="http://vivoweb.org/ontology/core#Role"/>
    <rdf:type rdf:resource="http://vivoweb.org/ontology/core#PresenterRole"/>
    <vivo:roleRealizedIn rdf:resource="http://reach.suny.edu/individual/n3694"/>
    <vivo:dateTimeInterval rdf:resource="http://reach.suny.edu/individual/n2406"/>
    <vivo:presenterRoleOf rdf:resource="http://reach.suny.edu/individual/Hajagos_Janos"/>
    <rdfs:label rdf:datatype="http://www.w3.org/2001/XMLSchema#string">Speaker</rdfs:label>
  </rdf:Description>
  <rdf:Description rdf:about="http://reach.suny.edu/individual/n3694">
    <rdfs:label rdf:datatype="http://www.w3.org/2001/XMLSchema#string">VIVO Mini-Grant: Integrating the UMLS Ontology into VIVO for Linking Biomedical Scientists</rdfs:label>
  </rdf:Description>
  <rdf:Description rdf:about="http://reach.suny.edu/individual/n4507">
    <rdf:type rdf:resource="http://www.w3.org/2002/07/owl#Thing"/>
    <rdf:type …
Run Code Online (Sandbox Code Playgroud)

rdf sparql

Yuc*_*Cui
2013 10-15
3
推荐指数
1
解决办法
920
查看次数

SPARQL 1.1中的MAX？

我是SPARQL 1.1的初学者.我有一个N-Triples文件,如下所示.我想找到Work_RVU(最后一个属性)和相关代码(第四个属性)的最大值.

<file://PPRVU12.xlsx/69540> <http://www.w3.org/1999/02/22-rdf-syntax-ns?#type> <http://cms.gov/HCPCS> .
<file://PPRVU12.xlsx/69540> <http://www.w3.org/2000/01/rdf-schema#label> "Remove ear lesion" .
<file://PPRVU12.xlsx/69540> <file://PPRVU12.xlsx#Status_Code> "A" .
<file://PPRVU12.xlsx/69540> <file://PPRVU12.xlsx#Code> "69540" .
<file://PPRVU12.xlsx/69540> <file://PPRVU12.xlsx#Work_RVU> "1.25" .

<file://PPRVU12.xlsx/69550> <http://www.w3.org/1999/02/22-rdf-syntax-ns?#type> <http://cms.gov/HCPCS> .
<file://PPRVU12.xlsx/69550> <http://www.w3.org/2000/01/rdf-schema#label> "Remove ear lesion" .
<file://PPRVU12.xlsx/69550> <file://PPRVU12.xlsx#Status_Code> "A" .
<file://PPRVU12.xlsx/69550> <file://PPRVU12.xlsx#Code> "69550" .
<file://PPRVU12.xlsx/69550> <file://PPRVU12.xlsx#Work_RVU> "11.15" .

<file://PPRVU12.xlsx/69552> <http://www.w3.org/1999/02/22-rdf-syntax-ns?#type> <http://cms.gov/HCPCS> .
<file://PPRVU12.xlsx/69552> <http://www.w3.org/2000/01/rdf-schema#label> "Remove ear lesion" .
<file://PPRVU12.xlsx/69552> <file://PPRVU12.xlsx#Status_Code> "A" .
<file://PPRVU12.xlsx/69552> <file://PPRVU12.xlsx#Code> "69552" .
<file://PPRVU12.xlsx/69552> <file://PPRVU12.xlsx#Work_RVU> "19.81" .
Run Code Online (Sandbox Code Playgroud)

最大RVU应为19.81,代码应为"69552".我可以打印19.81但总是打印"69540",这意味着它总是选择它每次遇到的第一个代码.

我的SPARQL代码如下:

PREFIX pre: <file://PPRVU12.xlsx#>
SELECT ?code (MAX (?val) AS …
Run Code Online (Sandbox Code Playgroud)

rdf sparql

Yuc*_*Cui
2013 06-10
1
推荐指数
1
解决办法
413
查看次数

标签 统计

rdf ×2

sparql ×2