DISIT Lab of University of Florence | DISIT Lab of University of Florence

Warning: Duplicate entry '4731972' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:769:\"Duplicate entry '1363734' for key 'PRIMARY'\nquery: INSERT INTO axdbv4.download(type,AXOID,AXUID,rootobjectsinfo_format, rootobjectsinfo_type, platform,userAgent,ipAddress,portal,http_via,http_x_forwarded_for,section,locale,search_order,qid,enrich, results, session_id,referer) VALUES ('VIEW','urn:axmedis:00000:obj:79379db7-7cba-421e-9866-0fe71131c6c0','0','document','pdf','windows+chrome','Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari in C:\Programmi\Apache Software Foundation\Apache2.2\htdocs\drupal\includes\database.mysqli.inc on line 128

Warning: Duplicate entry '4731972' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:834:\"Duplicate entry '4731972' for key 'PRIMARY'\nquery: INSERT INTO watchdog\n (uid, type, message, variables, severity, link, location, referer, hostname, timestamp)\n VALUES\n (0, 'content download', 'db error: %error, %data', 'a:2:{s:6:\\"%error\\";b:0;s:5:\\"%data\\";s:258:\\"VIEW|urn:axmedis:00000:obj:79379db7-7cba-421e-9866-0fe71131c6c0|0|document|pdf|windows+chrome|Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36|8.160.128.173|PC||8.160.128.173| in C:\Programmi\Apache Software Foundation\Apache2.2\htdocs\drupal\includes\database.mysqli.inc on line 128

Warning: Duplicate entry '4731972' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:258:\"file_get_contents(http://www.disit.org/scorrimento3.html) [<a href=\'function.file-get-contents\'>function.file-get-contents</a>]: failed to open stream: Unable to find the socket transport "ssl" - did you forget to enable it when you configured PHP?\";s:5:\"%file\";s:110:\"C:\\Programmi\\Apache Software Foundation\\Apache2.2\\htdocs\\drupal\\sites\\default\\themes\\custom\\eclap\\template.php\";s:5:\"%line\";i:39;}', 3, '', 'http://www.disit.org/drupal/?axoid=urn%3Aaxmedis%3A00000%3Aobj%3A79379db7-7cba-421e-9866-0fe71131c6c0&ml=en&q=en-US%2Fhome& in C:\Programmi\Apache Software Foundation\Apache2.2\htdocs\drupal\includes\database.mysqli.inc on line 128

Warning: Duplicate entry '4731972' for key 'PRIMARY' query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:7:\"warning\";s:8:\"%message\";s:256:\"file_get_contents(http://www.disit.org/RightBarMM.html) [<a href=\'function.file-get-contents\'>function.file-get-contents</a>]: failed to open stream: Unable to find the socket transport "ssl" - did you forget to enable it when you configured PHP?\";s:5:\"%file\";s:110:\"C:\\Programmi\\Apache Software Foundation\\Apache2.2\\htdocs\\drupal\\sites\\default\\themes\\custom\\eclap\\template.php\";s:5:\"%line\";i:41;}', 3, '', 'http://www.disit.org/drupal/?axoid=urn%3Aaxmedis%3A00000%3Aobj%3A79379db7-7cba-421e-9866-0fe71131c6c0&ml=en&q=en-US%2Fhome� in C:\Programmi\Apache Software Foundation\Apache2.2\htdocs\drupal\includes\database.mysqli.inc on line 128
DISIT Lab of University of Florence | DISIT Lab of University of Florence

deep search

collection's Playback

Metadata

Metadata languages

Title Ontology Bulding vs Data Harvesting and Cleaning for Smart-city Services

Subject DMS 2014, distributed multimedia systems conference,

Description Presently, a very large number of public and private data sets are available around the local governments. In most cases, they are not semantically interoperable and a huge human effort is needed to create integrated ontologies and knowledge base for smart city. Smart City ontology is not yet standardized, and a lot of research work is needed to identify models that can easily support the data reconciliation, the management of the complexity and reasoning. In this paper, a system for data ingestion and reconciliation of smart cities related aspects as road graph, services available on the roads, traffic sensors etc., is proposed. The system allows managing a big volume of data coming from a variety of sources considering both static and dynamic data. These data are mapped to smart-city ontology and stored into an RDF-Store where they are available for applications via SPARQL queries to provide new services to the users. The paper presents the process adopted to produce the ontology and the knowledge base and the mechanisms adopted for the verification, reconciliation and validation. Some examples about the possible usage of the coherent knowledge base produced are also offered and are accessible from the RDF-Store and related services. The article also presented the work performed about reconciliation algorithms and their comparative assessment and selection. Keywords Smart city, knowledge base construction, reconciliation, validation and verification of knowledge base, smart city ontology, linked open graph.

Technical

Classification

IPR information

Location

Actions

Average:

Your rating: None

Submitted by root on Sun, 2014-08-17 01:56

Search Filter

Content

Organize Personal Collection

Select resources to add to collections

Do you really want to start
from scratch?

Classification

Warning: Table '.\drupal\sessions' is marked as crashed and should be repaired query: UPDATE sessions SET uid = 0, cache = 0, hostname = '192.168.0.44', session = 'hidePDA|s:1:\"0\";', timestamp = 1765157768 WHERE sid = '1239e703ec1c83cd73b9efd067267021' in C:\Programmi\Apache Software Foundation\Apache2.2\htdocs\drupal\includes\database.mysqli.inc on line 128