企业级大数据知识图谱产品的构建及应用
企业级大数据知识图谱产品的构建及应用 明略鹚据MININGLAMP企业级大数据做啥?Big data is like teenage sexEveryone talks about it, nobody really knows how to do itEveryone thinks everyone else is doing it,so everyone claims they are doing it tooSimon matthews卖平台?卖数据?卖服务?做咨询????Arch Summit全球架构师峰会Powered by InfoQ明略据· MININGLAMP从业务的角度看公安公安搜索团伙挖掘重大事件预金融报表计算用户画像实时交易反欺诈历史数据精准营销设备故障造业查询预测电商税务数据整合数据治理推荐系统税务反欺诈社交,O20大数据商业智能数据驱动的平台(BI资源变现普通需求中高级需求高级且痛点需求普通需求很通用,基本无行业属性,但业务附加值低越高级的需求,行业属性越明显,越难落地或做岀好效果,但业务附加值高能解决高级需求的产品或方案,往往也能解决普通、中级高级需求,但反之未必Arch Summit全球架构师峰会Powered by InfoQ明略据· MININGLAMP明略之道多种多样的需求公安金融制造业需求需求需求升级思考降维打击交互式服务批量式可视化业机务公安金融构建数据之间的关联知学数据数据简洁统一的数据模型只习降维打击最关键的两点:数据治理/整合和关联计算业务知识和机器学习(数据挖掘)会贯穿整个流程普适的方案,目标是解决各行业最难的业务需求Arch Summit全球架构师峰会Powered by InfoQ明略鹚据· MININGLAMP构建大数据知识图谱产品企业级大数据简析构建大数据知识图谱产品应用浅谈Arch Summit全球架构师峰会Powered by InfoQ明略据· MININGLAMP知识图谱是什么?o 8以图为载体点代表“实体”边代表“关系●●a88●结合特定行业数据和领域知识,得到的则是领域內知识图谱比如,银行+交易数据+人员信息=>以人为核心(交易为关系)的知识图谱Arch Summit全球架构师峰会Powered by InfoQ明略鹚据·· MININGLAMF个简单的工商企业的知识图谱轮胎生产总经理公司A人属于法人公司关联万物互联子公司制造业产品属于法人公司==B行业手套图上每个点皆为“实体”,边为“关系”(具有不同的类别)实体和关系可以有多个属性(如人年龄,性别,关系类别/开始时间万物互联”,数据种类越多,数据量越大,越能还原真实世界的面貌Arch Summit全球架构师峰会Powered by InfoQ明略据· MININGLAMP如何落地知识图谱产品?交互式服务|批量式服务|可视化服务提供各类服务接口,支撑业务场景数据挖掘与机器学习业务模型,自然语言处理,全量数据机器学习图数据库知识图谱的物理载体,提供各类图相关服务关联计算基于规则的关联计算,建立实体之间的关系数据治理与整合结构化与非结构化数据智能治理与整合他统一数据视图建立行业特定的知识图谱所需的数据模型Arch Summit全球架构师峰会Powered by InfoQ明略据· MININGLAMP多规融合数据模型姓张三人车张二实体手机公司产品特别的,对于实体,需要融合实体各方面的信息D110105**实大交易流水人员地址XX市XX街道酒店入住事件火车出行手机159*为**为民航出行139**大直系关系关系人户关系信XXX人案关系Arch Summit全球架构师峰会Powered by InfoQ
- 2020-12-10下载
- 积分：1
RTCM3.3协议全
全新RTCM3.3协议完整版RTCM STANDARD 10403.3DIFFERENTIAL GNSS(GLOBAL NAVIGATION SATELLITE SYSTEMS)SERVICES – VERSION 3DEVELOPED BYRTCM SPECIAL COMMITTEE NO. 104OCTOBER 7, 2016COPYRIGHT©2016 RTCMRadio Technical Commission for Maritime Services1611 N. Kent St., Suite 605Arlington, Virginia 22209-214RTCM Paper 141-2016-SC104-STD000ocRTCMco00c30RTCM 10403. 3, Differential GNSS Global Navigation Satellite Systems)Services- Version 3, October 7, 2016This standard (referred to as version 3 has been developed by rtCm special Committee 104 as a moreefficient alternative to the standards entitled rtcm recommended standards for diffe rentialRecommended Standards for Differential gNss Global Navigation Satellite Systems Service, Version 2.x(Current version is 2. 3, now designated as RTCM 10402. 3. Service providers and vendors represented onthe SC104 Committee wanted a new standard that would be more efficient, easy to use, and more easilyadaptable to new situations. The main complaint was that the version 2. x parity scheme, which useswords with 24 bits of data followed by 6 bits of parity, was wasteful of bandwidth. Another complaint wasthat the parity was not independent from word to word. Still another was that even with so many bitsdevoted to parity the actual integrity of the message was not as high as it should be. Plus, 30-bit wordsare awkward to handle. the new standard version 3 is intended to correct these weaknessesUnlike Version 2. x, this standard does not include tentative messages The messages in Version 3 haveundergone testing for validity and interoperability and are considered to be permanent. amendments tothe standard may change the meaning of reserved bits or provide additional clarifying text, but no changeswill be made in the data fields. Changes will require new messages to be developed. In addition to themessages described in the current standard the committee continues to develop new messages whichare described in separately published amendments and periodically gathered into a new edition of thestandard. RTCM 10403x for dgNSS services is proving useful in supporting highly accurate differentialand kinematic positioning as well as a wide range of navigation applications worldwideNote that Version 3 messages are not compatible with Version 2. x. Since many receivers have beendesigned and programmed for use with Version 2. x messages, rtCm is maintaining both standards0402 3 and 10403, 3 as" standardsVersion 3.0The initial edition consisted primarily of messages designed to support real-time kinematic (RTK)operations. The reason for this emphasis is that rtk operation involves broadcasting a lot of informationand thus benefits the most from an efficient data format. Version 3.0 provided messages that supportGPS and gloNaSs rTK operations including code and carrier phase observables antenna parametersand ancillary system parametersVersion 3. 1(RTCM Standard 10403.1:The next edition, Version 3. 1 (RTCM Standard 10403. 1), incorporated GPS Network Corrections, whichenable a mobile receiver to obtain accurate rtk information valid over a large area. In addition, new GPSand GLoNaSS messages provide orbital parameters to assist in rapid acquisition a Unicode text messageis also provided for the transmission of textual data. Finally a set of messages are reserved for vendorswho want to encapsulate proprietary data in their broadcasts the gps Network Corrections enable amobile receiver to obtain accurate rtk information valid over a large area. the network rtk correctioninformation provided to a rover can be considered as interpolated corrections between the referencestations in the rtk network this interpolation is not perfect and varies with the actual conditions of theatmosphere. A residual interpolation error has to be expected. With sufficient redundancy in the RtKnetwork, the network server process can provide an estimate for residual interpolation errors. Suchquality estimates may be used by the rover to optimize the performance of rtk solutions The values maybe considered by the rover as a priori estimates only with sufficient tracking data available the rovermight be able to judge residual geometric and ionospheric errors itselfVersion 3. 1. Amendment 1:Amendments 1 was an extensive addition that adds rtcm messages containing transformation data andinformation about Coordinate reference Systems. For rtCm data supporting a rtk service, coordinatesare measured within the itrf or a regional realization surve yors and other users of rtk services mustnormally present their results in the coordinates of local datums. Therefore, coordinate transformationsare necessary. by having RTCM messages that contain transformation data and information about theCoordinate reference systems the users of the rtk service can obtain their results in the desired datumwithout any manual operations. the rtk service providers can then ensure that current information forthe computation of the transformations is always used. the convenience of this method will promote theacceptance of rtK servicesVersion 3. 1. amendment 2:Amendment 2 added residual error messages to support the use of Non-Physical or Computed referenceStations in a network rtk environmentVersion 3. 1. amendment 3:Amendment 3 addressed differences in the way gnss receiver manufacturers have implemented carrierphase encoding of some Version 3 messages so that carrier phase observations are in phase for all carrierphases of a specific frequency i e. they correct for quarter cycle phase shifts. others retain the quartercycle offset between the carrier phase observations in the data. this amendment documents the waydifferent manufacturers have handled the phase shift issue and prescribes a uniform approach for futureproducts.∨ersiⅰon3.1, Amendment4:Amendment 4 added sections 3.5.13 on glONASS Network rtK Correction Messages and 3.5. 14 on FKPNetwork Rtk Correction Messages Related revisions were also made elsewhere in the document.Version 3. 1. amendment 5Amendment 5 added section 3. 5. 12 on State Space Representation related revisions are also madeelsewhere in the document, along with some editorial correctionsVersion 3. 2(RTCM Standard 10403.2)Version 3.2 consolidates Version 3. 1 and all five amendments into a new edition, and it adds MultipleSignal Messages (MSM)as well. the Multiple Signal Message (MSm)format generates receiverobservables in the same way for all included satellite systems. the messages include compact and fullmessages for Pseudorange, PhaseRange, Carrier to Noise Ratio (standard and high resolution), andPhaseRangeratea table near the beginning of the standard lists which messages were included in each separate editionand amendment, so it should not be necessary for users to refer to older versions. Multiple signalMessages are a generic format that will be followed for all GNSs systems. version 3 originally consisted ofmessages for GPS and GLONASS, each in their own format Now with the imminent addition of signals forBeiDou, Galileo, and QZSS, as well as new signals provided by modernized GPS and GloNASS satellitesthe need for a consistent generic format became evident. service providers and users are urged to migrateto the MsM messages to make it easier to accommodate new gNss services(See The RTCM Multiple Signal Messages: A New Step in GNSS Data Standardization")Another newmessage is the gloNaSS Bias Information message. This message provides information which is intendedto compensate for the first-order inter-frequency phase range biases introduced by the reference receivercode- phase biasVersion 3.2, Amendment 1:Added Galileo F/NAv Satellite Ephemeris Data(msg. 1045 )and Bds MSM(msgs. 1121-1127)Version 3.2 amendment 2Added qzss ephemeris(msg. 1044 )and QZss MSm (msgs. 1111-1117Version 3. 3(RTCM Standard 10403.3)This new edition adds Satellite-Based Augmentation System Multiple Signal Messages to previouslydopted messages for GPS, GLONASS, Galileo, and QzssA new ephemeris message has been added for BeiDou(BDS)and a new I/NAV ephemeris message hasbeen added for Galileo. The new edition also reserves 100 messages be used exclusively by sc104 fornew message developmentFinally, the new edition makes consolidates previous amendments and makes numerous editorialImprovementsNavstar GPS Service, Version 2. x. Service providers and vendors represented on the scco000c30z1O2co00c30Contentsco00c30
- 2020-06-27下载
- 积分：1
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