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公开(公告)号:KR1020120115005A
公开(公告)日:2012-10-17
申请号:KR1020110032898
申请日:2011-04-08
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
IPC: G06F17/30
CPC classification number: G06F17/30634 , G06F17/30451 , G06F17/30011 , G06F17/30112 , G06F17/30327 , G06F17/30486
Abstract: PURPOSE: An efficient query processing method and a device thereof are provided to improve search performance by using a partial character string having an unfixed length. CONSTITUTION: A UI(User Interface)(105) receives a query character string and outputs a document including the character string. A database(165) stores information about various documents. A processor(135) generates an effective character string set composed of partial character strings having different lengths through the query character string. The processor determines one of subsets of the effective character string set as a candidate set based on costs of the subsets for accessing the database. The processor searches the database for the document including the query character string by using the candidate set. [Reference numerals] (105) User Interface; (110) Character string set generating unit; (120) Candidate set determining unit; (130) Document searching unit; (140) Index DB; (150) Inverted index DB; (160) Document DB
Abstract translation: 目的:提供一种高效的查询处理方法及其设备,通过使用具有不固定长度的部分字符串来提高搜索性能。 构成:UI(用户界面)(105)接收查询字符串并输出包含字符串的文档。 数据库(165)存储关于各种文档的信息。 处理器(135)通过查询字符串生成由具有不同长度的部分字符串组成的有效字符串集合。 处理器基于用于访问数据库的子集的成本来确定设置为候选集合的有效字符串的子集中的一个。 处理器通过使用候选集搜索数据库中包含查询字符串的文档。 (附图标记)(105)用户界面; (110)字符串组生成单元; (120)候选集确定单位; (130)文件检索单位; (140)指数DB; (150)反指数DB; (160)文件DB
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公开(公告)号:KR101793578B1
公开(公告)日:2017-11-20
申请号:KR1020110032898
申请日:2011-04-08
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
IPC: G06F17/30
CPC classification number: G06F17/30634
Abstract: 효율적인질의처리방법및 그장치가개시된다. 질의처리방법은, 엔-그램을이용하여질의문자열로부터길이가다른복수개의부분문자열로구성된유효문자열셋을생성하고, 접근비용에기초하여유효문자열셋의서브셋중 어느하나의서브셋을후보셋으로결정하며, 후보셋을이용하여상기질의문자열이존재하는문서를검색한다.
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公开(公告)号:KR1020170065096A
公开(公告)日:2017-06-13
申请号:KR1020150171103
申请日:2015-12-03
Applicant: 서울대학교산학협력단
Abstract: 본발명은표면상에직사각형단면을가지는복수의음각그루브가형성된초소수성구조체및 이의제조방법에관한것이다.
Abstract translation: 超疏水性结构体及其制造方法技术领域本发明涉及在表面形成多个剖面为矩形的凹版槽的超疏水性结构体及其制造方法。
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公开(公告)号:KR102202569B1
公开(公告)日:2021-01-13
申请号:KR1020190141232
申请日:2019-11-06
Applicant: 서울대학교산학협력단
IPC: G01L23/06 , G01L23/26 , G01J5/48 , B23K26/352 , G01J5/00
Abstract: 본발명은입수하는물체에대해물이가하는항력을측정하는장치및 방법에관한것으로, 본발명에따른입수하는물체의온도에따른항력측정방법은, 측정대상물을가열하는가열단계, 상기측정대상물을물 속으로낙하시키는입수단계, 상기입수하는측정대상물의온도를측정하는온도측정단계, 입수후 상기측정대상물의진행방향후류에생성되는캐비티버블의크기를측정하는버블측정단계를포함할수 있다.
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公开(公告)号:KR101615164B1
公开(公告)日:2016-04-26
申请号:KR1020090023910
申请日:2009-03-20
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
CPC classification number: G06F17/30625
Abstract: 엔-그램기반의질의처리장치및 그방법에관한기술이다. 질의어에대한전체엔-그램중에서일부의엔-그램을이용하여질의처리를수행한다. 상기일부의엔-그램에대한포스팅리스트(posting list)를이용하여상기질의어가존재할수 있는문서의후보셋(candidate set)을추출한다.
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公开(公告)号:KR1020150138604A
公开(公告)日:2015-12-10
申请号:KR1020140066690
申请日:2014-06-02
Applicant: 서울대학교산학협력단
IPC: B01F13/00
Abstract: 유동혼합장치및 방법이개시된다. 본발명의실시예에따른유동혼합장치는전방에서유입되는유동에대향하고, 그측면에소수성을가지는표면처리부가형성된실린더를포함한다.
Abstract translation: 本发明涉及一种流动混合装置及方法。 根据本发明的一个实施例的流动混合装置面向从前面引入的流动,并且包括具有在一侧具有疏水性的表面处理单元的圆柱体,其中表面处理单元具有大于150到更小的接触角 超过180°,并疏水处理表面。
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公开(公告)号:KR1020100105080A
公开(公告)日:2010-09-29
申请号:KR1020090023910
申请日:2009-03-20
Applicant: 삼성전자주식회사 , 서울대학교산학협력단
CPC classification number: G06F17/30625
Abstract: PURPOSE: A query processing method based on N-gram and an apparatus thereof are provided to improve query processing performance even when the length of a query is long. CONSTITUTION: A query processor(710) selects some N-grams among total N-grams for a query based on a query processing cost and uses a posting list for the some N-grams to extract a candidate set of a document in which a query exists. The query processor determines, based on the candidate set, the document including the query.
Abstract translation: 目的:提供一种基于N-gram及其装置的查询处理方法,以便即使查询长度较长,也可提高查询处理性能。 构成:查询处理器(710)基于查询处理成本为查询选择总N克中的一些N克,并使用一些N克的发布列表来提取其中查询的文档的候选集 存在。 查询处理器基于候选集确定包括查询的文档。
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