• Àüü
  • ÀüÀÚ/Àü±â
  • Åë½Å
  • ÄÄÇ»ÅÍ
´Ý±â

»çÀÌÆ®¸Ê

Loading..

Please wait....

±¹³» ÇÐȸÁö

Ȩ Ȩ > ¿¬±¸¹®Çå > ±¹³» ÇÐȸÁö > µ¥ÀÌÅͺ£À̽º ¿¬±¸È¸Áö(SIGDB)

µ¥ÀÌÅͺ£À̽º ¿¬±¸È¸Áö(SIGDB)

Current Result Document :

ÇѱÛÁ¦¸ñ(Korean Title) DRAZ : À̱âÁ¾ ¸ÞŸ µ¥ÀÌÅÍ ¼Ò½º¸¦ À§ÇÑ SPARQL Äõ¸® ¿£Áø
¿µ¹®Á¦¸ñ(English Title) DRAZ: SPARQL Query Engine for heterogeneous metadata sources
ÀúÀÚ(Author) ¿ì¸ÞÀ̸£ ÄíµÎ½º   ¿¥µð À̺ê¶óÈû È£¼¼ÀΠ  ÀÌâÁÖ   Å°ÆľßÆ® ¿ï¾Æ Ä­   ¿øÈñ¼±   ÀÌ¿µ±¸   UMAIR Qudus   Md Ibrahim Hossain   ChangJu Lee   Kifayat Ullah Khan   Heesun Won   Young-Koo Lee  
¿ø¹®¼ö·Ïó(Citation) VOL 34 NO. 03 PP. 0069 ~ 0085 (2018. 12)
Çѱ۳»¿ë
(Korean Abstract)
ÃÖ±Ù DCAT, CKAN °°Àº µ¿Á¾ µ¥ÀÌÅÍ ÁýÇÕ¿¡ ´ëÇØ ÁúÀǸ¦ µ¿½Ã¿¡ ¼öÇàÇÏ¿© Äõ¸® °á°úÀÇ Ç°ÁúÀ» Å©°Ô Çâ»óÇÏ´Â Æä´õ·¹ÀÌ¼Ç Äõ¸® ¿£ÁøÀÌ È°¹ßÇÏ°Ô ¿¬±¸µÇ°í ÀÖ´Ù. ÇÏÁö¸¸ ±âÁ¸ ¿¬±¸´Â ºñÇ¥ÁØ Äõ¸®¸¦ »ç¿ëÇϸç Á¤Àû ¹ÙÀεùÀ» Àû¿ëÇÑ ¸î °¡Áö À̱âÁ¾ µ¥ÀÌÅÍ ÁýÇÕ ¶Ç´Â µ¿Á¾ µ¥ÀÌÅÍ ÁýÇÕ¿¡ ´ëÇؼ­¸¸ ÁúÀÇ ÇÒ ¼ö ÀÖ´Ù. º» ³í¹®¿¡¼­´Â SPARQLÀ» »ç¿ëÇÏ¿© ¿©·¯ µ¥ÀÌÅÍ ¼Ò½º¿¡ ÁúÀÇÇÏ´Â Æä´õ·¹ÀÌƼµå ¿£Áø (DRAZ)À» Á¦¾ÈÇÑ´Ù. Á¦¾ÈÇÏ´Â ½Ã½ºÅÛ¿¡¼­´Â ÁÖ¾îÁø SPARQL Äõ¸®ÀÇ ¸ðµç Æ®¸®Çà ÆÐÅÏÀ» API È£Ãâ·Î º¯È¯ÇÏ¿© ÇØ´ç µ¥ÀÌÅͼ¿¡ Á¢±ÙÇÑ´Ù. ¸¶Áö¸·À¸·Î ¸ðµç API È£Ãâ °á°ú¸¦ N-Æ®¸®Ç÷Πº¯È¯ÇÏ°í ¸ðµç Æ®¸®Çà ÆÐÅÏÀ» °í·ÁÇÑ ÃÖÁ¾ °á°ú¸¦ ¿ä¾àÇÑ´Ù. ¿ì¸®´Â Á¦¾ÈÇÏ´Â DRAZ¸¦ DCAT ¹× DOI¿Í °°Àº À̱âÁ¾ ¸ÞŸ µ¥ÀÌÅÍ Ç¥ÁØÀ» °í·ÁÇÏ¿© ¼öÁ¤µÈ Fedbench º¥Ä¡ ¸¶Å© ÁúÀǸ¦ »ç¿ëÇÏ¿© Æò°¡ÇÏ¿´´Ù. Á¦¾ÈÇÏ´Â ½Ã½ºÅÛÀÎ DRAZ°¡ JOIN ÀÛ¾÷À» »ç¿ëÇÒ ¼ö ¾øÀ½¿¡µµ ºÒ±¸ÇÏ°í °á°úÀÇ 70-100 % Á¤È®µµ¸¦ ´Þ¼º ÇÒ ¼ö ÀÖÀ½À» ½ÇÇèÀ» ÅëÇØ È®ÀÎÇÏ¿´´Ù.
¿µ¹®³»¿ë
(English Abstract)
Many researches proposed federated query engines to perform query on several homogeneous or heterogeneous datasets simultaneously that significantly improve the quality of query results. The existing techniques allow querying only over a few heterogeneous datasets considering the static binding using the non-standard query. However, we observe that a simultaneous system considering the integration of heterogeneous metadata standards can offer better opportunity to generalize the query over any homogeneous and heterogeneous datasets. In this paper, we propose a transparent federated engine (DRAZ) to query over multiple data sources using SPARQL. In our system, we first develop the ontology for a non-RDF metadata standard based on the metadata kernel dictionary elements, which are standardized by the metadata provider. For a given SPARQL query, we translate any triple pattern into an API call to access the dataset of corresponding non-RDF metadata standard. We convert the results of every API call to N-triples and summarize the final results considering all triple patterns. We evaluated our proposed DRAZ using modified Fedbench benchmark queries over heterogeneous metadata standards, such as DCAT and DOI. We observed that DRAZ can achieve 70 to 100 percent correctness of the results despite the unavailability of the JOIN operations.
Å°¿öµå(Keyword) À̱âÁ¾ ¸ÞŸ µ¥ÀÌÅÍ ¼Ò½º   DCAT   DOI   µî·Ï ´ëÇà ±â°ü   heterogeneous metadata standards   DCAT   DOI   registration agencies  
ÆÄÀÏ÷ºÎ PDF ´Ù¿î·Îµå