Pig开发手册
Use the FOREACH-GENERATE command to assign names to the fields.uniq_frequency3=FOREACH uniq_frequency2 GENERATE$1 as hour,$0 as ngram,$2 as score,$3 as count,$4 as mean;Use the FILTER command to move all records with a ...
构造测试数据
(56),(57),(58),(59),(60),(61),(62),(63)t(c0))select k,from_unixtime(1617120000)as t,from_unixtime(1617120000+3600000*c)as b,c from(select 100+row_number()over(partition by 1)-1 as k,cast(round(rand()*3,0)as bigint)+3 as c ...
归一化
string,11 as col_bigint,10.2 as col_double,False as col_boolean,cast('2016-07-02 10:00:00' as datetime)as col_datetime from dual union all select '02' as col_string,cast(null as bigint)as col_bigint,10.3 as col_double,True...
标准化
string,11 as col_bigint,10.2 as col_double,False as col_boolean,cast('2016-07-02 10:00:00' as datetime)as col_datetime from dual union all select '02' as col_string,cast(null as bigint)as col_bigint,10.3 as col_double,True...
CAST函数
返回结果如下：+-+|CAST(4.3 AS BOOLEAN)|+-+|1|+-+示例4 将INT的数据类型 5 转换为BOOLEAN类型，语句如下：SELECT CAST(5 AS BOOLEAN);返回结果如下：+-+|CAST(5 AS BOOLEAN)|+-+|1|+-+CAST AS DECIMAL(m,d)|FLOAT|INT|INTEGER|SMALLINT|...
CREATE TABLE AS
从分区子表创建新表，并自动同步数据，新表只会同步这一张子表的数据 CREATE TABLE public.new_table_3 AS TABLE public.src_table_child1;从Select Query的结果复制一张新表，同时设置新表属性。创建源表 BEGIN;CREATE TABLE public.src_...
UDF（地理空间）
CREATE FUNCTION ST_Aggr_Intersection AS 'com.esri.hadoop.hive.ST_Aggr_Intersection' USING 'spatial-sdk-hive.jar,esri-geometry-api.jar';CREATE FUNCTION ST_Aggr_Union AS '...
正态检验
create table normality_test_input as select*from(select 1 as x from dual union all select 2 as x from dual union all select 3 as x from dual union all select 4 as x from dual union all select 5 as x from dual union all ...
PS-SMART多分类
create table smart_multiclass_input lifecycle 3 as select*from(select '2' as label,'1:0.55 2:0.15 3:0.82 4:0.99 5:0.17' as features union all select '1' as label,'1:1.26 2:1.36 3:0.13 4:2.82 5:0.41' as features union all ...
基于Tair Vector实现图文多模态检索
query_texts_by_image("/home/CLIP_Demo/boxer_18.jpg",3)结果展示 以文搜图，查询最符合文本"奔跑的狗"的三张图，结果如下。以图搜文，指定查询图片如下。查询结果如下。{"results":[{"text":"奔跑的白色的狗","distance":"0....
机器学习开发示例
spark.udf.register("oneElementVec",lambda d:Vectors.dense([d]),returnType=VectorUDT())ml_data=datat.select(*exprs).selectExpr("oneElementVec(2014_Population_estimate)as features","2015_median_sales_price as label")3....
使用性能洞察
数据指标 性能洞察将pg_stat_activity视图作为数据源，采样后可以获取到以下信息：用户、等待事件 SQL、HOST 数据库、连接状态 以下图片和表格展示了PolarDB性能洞察页面以及部分参数的介绍。图 1.性能洞察页面示例图一 图 2.性能洞察页面...
DashVector+DashScope升级多模态检索
ImageNet-1k的validation数据集包含50000张标注好的图片数据，其中包含1000个类别，每个类别50张图片，这里我们基于ONE-PEACE模型提取原始图片的Embedding向量入库，另外为了方便后续的图片展示，我们也将原始图片的url一起入库。...
DashVector+DashScope升级多模态检索
ImageNet-1k的validation数据集包含50000张标注好的图片数据，其中包含1000个类别，每个类别50张图片，这里我们基于ONE-PEACE模型提取原始图片的Embedding向量入库，另外为了方便后续的图片展示，我们也将原始图片的url一起入库。...
前台类目
图片展示。4 单击，可以将商品移动至其他分组中。说明 选中需要分组的商品，通过鼠标左键拖动商品至不同分组列表也可完成商品添加。5 选中分组，单击鼠标右键，可对该分组进行重命名和删除操作。说明 如需删除父节点，需要先删除父节点下...
分组地图
图片展示。4 单击，可以将商品移动至其他分组中。说明 选中需要分组的商品，通过鼠标左键拖动商品至不同分组列表也可完成商品添加。5 选中分组，单击鼠标右键，可对该分组进行重命名和删除操作。说明 如需删除父节点，需要先删除父节点下...
基于AnalyticDB for PostgreSQL图搜API构建图搜应用
排序与显示：根据计算得到的相似性分数，将结果进行排序，并将最相关的图片展示给用户。图片搜索整体技术栈复杂，实现起来并不简单。因此，云原生数据仓库 AnalyticDB PostgreSQL 版 集合了多种图片向量算法及高效向量检索功能，提供高效的...
图片聚类
应用场景 网盘与相册服务：可以对网盘或者相册中的相似图片进行聚类，生成个性化的图片聚类展示。图片去重：针对APP或相册中上传和生成的图片进行相似图片聚类，以便删除相似图片，从而节省存储空间和存储成本。前提条件 已根据使用场景为...
端到端图搜解决方案
方案架构 用户可以通过3种不同的方式上传图片进行图搜引擎的搭建：OSS+MaxCompute+OpenSearch向量检索版：用户先将图片上传至OSS中，在MaxCompute中存储业务表数据以及每条数据对应的图片地址（OSS里的路径，比如/image/1.jpg）MaxCompute+...
图片盲水印
object.jpg","Content":"阿里云版权所有",} 返回示例 {"RequestId":"4FACCDBE-6D15-4E02-9924-1CC5FAF2A9B3",} 示例代码 以Python SDK为例，添加图片盲水印的完整示例代码如下。coding:utf-8-*-#This file is auto-generated,don't edit it...
图搜场景快速入门
（如上图所示）如果是MaxCompute数据源，从数据源同步字段后，展示在预置字段下方 主键字段不支持压缩 字段压缩、属性压缩开启后将节省存储空间，但查询性能可能有所下降，详见说明文档 3.设置索引，“向量：图片搜索”模板默认生成2个预置...
图片叠加
Duration":3 }]}]} 制作带字幕的图片相册 设置图片展示顺序和每张图片的持续时长 Duration，同时设置 Effects 属性，创建带字幕的图片幻灯片视频。{"VideoTracks":[{"VideoTrackClips":[{"Type":"Image","MediaId":"*756620ed48c9af022c66...
Quick BI仪表板标题区添加logo图片后有的图片无法展示
概述 本文描述了Quick BI仪表板标题区添加logo图片后有的图片无法展示的处理方法。详细信息 该链接不能使用网页的链接。要使用原图片链接。适用于 Quick BI 公共云4.2.1
SSML标记语言介绍
as interpret-as="address">富路国际1号楼3单元304</say-as><say-as interpret-as="nick">李四6689</say-as>文本头部之前可以省略XML Header。标签内的文字内容如果包含XML的特殊字符，需要做字符转义，常用的特殊字符对应关系如下。...
ST_AsMVT3D
使用MVT3D瓦片技术展示大规模三维场景：示例 WITH mvtgeom AS(SELECT ST_AsMVTGeom3D(ST_Transform('SRID=4326;MULTIPOLYGON(((100 50 0,-100 50 1,-100-50 2,100-50 3,100 50 0)),((0 0 0,1 0 1,2 2 2,0 0 0)))':geometry,3857),ST_...
ST_AsMVT3D
使用MVT3D瓦片技术展示大规模三维场景：示例 WITH mvtgeom AS(SELECT ST_AsMVTGeom3D(ST_Transform('SRID=4326;MULTIPOLYGON(((100 50 0,-100 50 1,-100-50 2,100-50 3,100 50 0)),((0 0 0,1 0 1,2 2 2,0 0 0)))':geometry,3857),ST_...
ST_AsMVT3D
使用MVT3D瓦片技术展示大规模三维场景：示例 WITH mvtgeom AS(SELECT ST_AsMVTGeom3D(ST_Transform('SRID=4326;MULTIPOLYGON(((100 50 0,-100 50 1,-100-50 2,100-50 3,100 50 0)),((0 0 0,1 0 1,2 2 2,0 0 0)))':geometry,3857),ST_...
ST_Zmflag
示例 不同类型的返回值：SELECT ST_Zmflag('POINT(0 1)':geometry)as_2D,ST_Zmflag('POINTM(0 1 2)':geometry)as_3DM,ST_Zmflag('POINT(0 1 2)':geometry)as_3DZ,ST_Zmflag('POINT(0 1 2 3)':geometry)as_4D;2d|_3dm|_3dz|_4d-+-+-+-0|1|2|...
ST_Zmflag
示例 不同类型的返回值：SELECT ST_Zmflag('POINT(0 1)':geometry)as_2D,ST_Zmflag('POINTM(0 1 2)':geometry)as_3DM,ST_Zmflag('POINT(0 1 2)':geometry)as_3DZ,ST_Zmflag('POINT(0 1 2 3)':geometry)as_4D;2d|_3dm|_3dz|_4d-+-+-+-0|1|2|...
ST_Zmflag
示例 不同类型的返回值：SELECT ST_Zmflag('POINT(0 1)':geometry)as_2D,ST_Zmflag('POINTM(0 1 2)':geometry)as_3DM,ST_Zmflag('POINT(0 1 2)':geometry)as_3DZ,ST_Zmflag('POINT(0 1 2 3)':geometry)as_4D;2d|_3dm|_3dz|_4d-+-+-+-0|1|2|...
逻辑回归二分类
cast(0 as double)as f1,cast(0 as double)as f2,cast(1 as double)as f3,cast(1 as bigint)as label from dual union all select cast(1 as double)as f0,cast(0 as double)as f1,cast(0 as double)as f2,cast(0 as double)as f3,cast(0 ...
ST_NDims
st_ndims-2(1 row)3维对象（3DM和3DZ）：SELECT ST_NDims('POINT(0 1 2)':geometry)as_3DZ,ST_NDims('POINTM(0 1 2)':geometry)as_3DM;3dz|_3dm-+-3|3(1 row)4维对象：SELECT ST_NDims('POINT(0 1 2 3)':geometry);st_ndims-4(1 row)
ST_NDims
st_ndims-2(1 row)3维对象（3DM和3DZ）：SELECT ST_NDims('POINT(0 1 2)':geometry)as_3DZ,ST_NDims('POINTM(0 1 2)':geometry)as_3DM;3dz|_3dm-+-3|3(1 row)4维对象：SELECT ST_NDims('POINT(0 1 2 3)':geometry);st_ndims-4(1 row)
ST_NDims
st_ndims-2(1 row)3维对象（3DM和3DZ）：SELECT ST_NDims('POINT(0 1 2)':geometry)as_3DZ,ST_NDims('POINTM(0 1 2)':geometry)as_3DM;3dz|_3dm-+-3|3(1 row)4维对象：SELECT ST_NDims('POINT(0 1 2 3)':geometry);st_ndims-4(1 row)
GBDT回归
cast(0 as double)as f1,cast(0 as double)as f2,cast(1 as double)as f3,cast(1 as bigint)as label from dual union all select cast(1 as double)as f0,cast(0 as double)as f1,cast(0 as double)as f2,cast(0 as double)as f3,cast(0 ...
GBDT二分类
cast(0 as double)as f1,cast(0 as double)as f2,cast(1 as double)as f3,cast(1 as bigint)as label from dual union all select cast(1 as double)as f0,cast(0 as double)as f1,cast(0 as double)as f2,cast(0 as double)as f3,cast(0 ...
相交类算子
示例 WITH box AS(SELECT ST_MakeBox3d(0,0,0,5,5,5)a,ST_MakeBox3dt(6,6,3,'2010-04-12 00:00:00',8,8,5,'2013-02-01 00:00:00')b)SELECT a/b AS OpZ,a#b AS OpT,a&b AS Op2D,a&b AS Op3d,a&b AS Op2DT,a&b AS Op3DT from box;opz|opt|op2...
逻辑回归多分类
cast(1 as double)as f1,cast(0 as double)as f2,cast(0 as double)as f3,cast(0 as bigint)as label from dual union all select cast(0 as double)as f0,cast(0 as double)as f1,cast(1 as double)as f2,cast(0 as double)as f3,cast(2 ...
相交类算子
示例 WITH box AS(SELECT ST_MakeBox3d(0,0,0,5,5,5)a,ST_MakeBox3dt(6,6,3,'2010-04-12 00:00:00',8,8,5,'2013-02-01 00:00:00')b)SELECT a/b AS OpZ,a#b AS OpT,a&b AS Op2D,a&b AS Op3d,a&b AS Op2DT,a&b AS Op3DT from box;opz|opt|op2...
相交类算子
示例 WITH box AS(SELECT ST_MakeBox3d(0,0,0,5,5,5)a,ST_MakeBox3dt(6,6,3,'2010-04-12 00:00:00',8,8,5,'2013-02-01 00:00:00')b)SELECT a/b AS OpZ,a#b AS OpT,a&b AS Op2D,a&b AS Op3d,a&b AS Op2DT,a&b AS Op3DT from box;opz|opt|op2...
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