什么是AI通信加速库Deepnccl
多机CPU-Reduce：该优化继承了单机内CPU-Reduce高效的异步流水线，并将跨机Socket通信也设计为流水线形态，实现多机通信全过程流水化，有效减少通信延迟，提高整体训练性能。例如，在通信量较大的Transformer-based模型的多机训练场景下，...
ST_As3DGrid
语法 geomgrid[]ST_As3DGrid(geometry geom3d,integer precision,bool degenerated default false);geomgrid[]ST_As3DGrid(meshgeom geom3d,integer precision,bool degenerated default false);geomgrid[]ST_As3DGrid(sfmesh geom3d,...
ST_As3DGrid
语法 geomgrid[]ST_As3DGrid(geometry geom3d,integer precision,bool degenerated default false);geomgrid[]ST_As3DGrid(meshgeom geom3d,integer precision,bool degenerated default false);geomgrid[]ST_As3DGrid(sfmesh geom3d,...
ST_As3DGrid
语法 geomgrid[]ST_As3DGrid(geometry geom3d,integer precision,bool degenerated default false);geomgrid[]ST_As3DGrid(meshgeom geom3d,integer precision,bool degenerated default false);geomgrid[]ST_As3DGrid(sfmesh geom3d,...
ST_As3dTiles
语法 boolean ST_As3dTiles(sfmesh sfmesh_object,cstring table_name,cstring options default '{}');返回值 返回值 描述 true 导出成功。false 导出失败。参数 参数名称 描述 sfmesh_object 需要处理的sfmesh对象。table_name 业务表名称...
ST_As3dTiles
语法 boolean ST_As3dTiles(sfmesh sfmesh_object,cstring table_name,cstring options default '{}');返回值 返回值 描述 true 导出成功。false 导出失败。参数 参数名称 描述 sfmesh_object 需要处理的sfmesh对象。table_name 业务表名称...
ST_AsText
unnest-GZ00262064446046072072-采用拆分编码 SELECT unnest(ST_AsText(ST_As3DGrid('srid=4490;POINT(116.31522216796875 39.910277777777778 1001.8)':geometry,20),-1,true));unnest-G00131032223023031031,+10010-H3编码 SELECT ST_...
ST_AsText
unnest-GZ00262064446046072072-采用拆分编码 SELECT unnest(ST_AsText(ST_As3DGrid('srid=4490;POINT(116.31522216796875 39.910277777777778 1001.8)':geometry,20),-1,true));unnest-G00131032223023031031,+10010-H3编码 SELECT ST_...
ST_AsText
unnest-GZ00262064446046072072-采用拆分编码 SELECT unnest(ST_AsText(ST_As3DGrid('srid=4490;POINT(116.31522216796875 39.910277777777778 1001.8)':geometry,20),-1,true));unnest-G00131032223023031031,+10010-H3编码 SELECT ST_...
ST_AsBinary
st_asbinary-\x0102000f74271236 select st_asbinary(unnest(st_as3dgrid('srid=4490;POINT(116.31522216796875 39.910277777777778 1001.8)':geometry,20)));st_asbinary-\x0102401474271236362412000000-H3Grid select st_asbinary(st_h3...
ST_AsBinary
st_asbinary-\x0102000f74271236 select st_asbinary(unnest(st_as3dgrid('srid=4490;POINT(116.31522216796875 39.910277777777778 1001.8)':geometry,20)));st_asbinary-\x0102401474271236362412000000-H3Grid select st_asbinary(st_h3...
ST_AsBinary
st_asbinary-\x0102000f74271236 select st_asbinary(unnest(st_as3dgrid('srid=4490;POINT(116.31522216796875 39.910277777777778 1001.8)':geometry,20)));st_asbinary-\x0102401474271236362412000000-H3Grid select st_asbinary(st_h3...
特征编码
3 as campaign,6 as pdays,2 as previous,-1.7 as emp_var_rate,94.055 as cons_price_idx,-39.8 as cons_conf_idx,0.729 as euribor3m,4991.6 as nr_employed,1 as y union all select 39 as age,2 as campaign,999 as pdays,0 as ...
聚类模型评估
create table if not exists pai_cluster_evaluation_test_input as select*from(select 1 as id,1 as f0,2 as f3 from dual union all select 2 as id,1 as f0,3 as f3 from dual union all select 3 as id,1 as f0,4 as f3 from dual ...
PS-SMART二分类训练
create table smart_binary_input lifecycle 3 as select*from(select 0.72 as f0,0.42 as f1,0.55 as f2,-0.09 as f3,1.79 as f4,-1.2 as f5,0 as label union all select 1.23 as f0,-0.33 as f1,-1.55 as f2,0.92 as f3,-0.04 as f4,-0....
DescribeChannelAreaDistributionStatData
CallUserCount Integer 3 通信人数。PubUserCount Integer 2 发布端人数。SubUserCount Integer 1 订阅端人数。HighQualityTransmissionRate String 0.9999 优质传输率，用小数表示，例如0.9999表示优质传输率为99.99%。RequestId String ...
数值函数（2.0版）
col0|+-+|0.5709993917553757|select random(cast(3 as tinyint));col0|+-+|2|select random(cast(3 as smallint));col0|+-+|0|select random(cast(3 as int));col0|+-+|1|select random(cast(3 as bigint));col0|+-+|0|RADIANS radians...
K近邻
create table pai_knn_test_input as select*from(select 1 as f0,2 as f1,'good' as class from dual union all select 1 as f0,3 as f1,'good' as class from dual union all select 1 as f0,4 as f1,'bad' as class from dual union all...
Table2KV
create table test as select*from(select 0 as rowid,1 as col0,1.1 as col1,2 as col2 from dual union all select 1 as rowid,0 as col0,1.2 as col1,3 as col2 from dual union all select 2 as rowid,1 as col0,2.3 as col1,4 as col2...
预测
create table pai_rf_test_input as select*from(select 1 as f0,2 as f1,"good"as class from dual union all select 1 as f0,3 as f1,"good"as class from dual union all select 1 as f0,4 as f1,"bad"as class from dual union all ...
标签传播聚类
id,'4' as flow_in_id,0.6 as edge_weight union all select '4' as flow_out_id,'6' as flow_in_id,0.3 as edge_weight union all select '5' as flow_out_id,'6' as flow_in_id,0.6 as edge_weight union all select '5' as flow_out_id,...
K均值聚类
使用其他初始质心的方式 create table pai_kmeans_test_input as select*from(select 'id1' as id,1 as f0,2 as f1 from dual union all select 'id2' as id,1 as f0,3 as f1 from dual union all select 'id3' as id,1 as f0,4 as f1 from...
双样本T检验
memSizePerCore=max(1024,int(kOneCoreDataSize*2))return coreNum,memSizePerCore 使用示例 测试数据 create table pai_test_input as select*from(select 1 as f0,2 as f1 from dual union all select 1 as f0,3 as f1 from dual union ...
PIVOT、UNPIVOT
.)，MaxCompute自动生成一组String的值来代替，规则如下：UNPIVOT(measure1 for axis in(c1,c2,c3,.))：此情况下生成的值是(c1,c2,c3,.)，即原语法改写为：UNPIVOT(measure1 for axis in(c1 as c1,c2 as c2,c3 as c3,.))。除上述情况以外...
PIVOT、UNPIVOT
.)，MaxCompute自动生成一组String的值来代替，规则如下：UNPIVOT(measure1 for axis in(c1,c2,c3,.))：此情况下生成的值是(c1,c2,c3,.)，即原语法改写为：UNPIVOT(measure1 for axis in(c1 as c1,c2 as c2,c3 as c3,.))。除上述情况以外...
使用CloudLens for SLS分析资源用量
t2 as(select InstanceID,round(di[1],3)as"费用",concat(cast(round(di[3]*100-100,3)as varchar),'%')"同比上月"from(select InstanceID,compare(cost,2592000)as di FROM(select InstanceID,round(sum(PretaxAmount),2)as cost FROM ...
工业资产指标&数据分析最佳实践
asset.level2 as level_2-可自定义别名,空间资产模型第三层级,asset.level3 as level_3-可自定义别名,空间资产模型第四层级,asset.level4 as level_4,metric.ts_second as"统计日期(ymdhms)",metric.ts_minute as"统计日期(minute)",metric...
随机森林
create table pai_rf_test_input as select*from(select 1 as f0,2 as f1,"good"as class from dual union all select 1 as f0,3 as f1,"good"as class from dual union all select 1 as f0,4 as f1,"bad"as class from dual union all ...
Pig作业配置
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 ...
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 '...
DingRTC
3.0.0 createClient()创建一个客户端实例以进行 RTC 通信 3.0.0 createCustomAudioTrack()创建一个自定义的音频轨道。你可以使用这个方法将自己维护的 MediaStreamTrack 转换成一个可以用于 SDK 的音频轨道。3.0.0 createCustomVideoTrack...
缺失值填充
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...
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 ...
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