https://qa.debian.org/cgi-bin/vcswatch?package=pd-pddp
pd-pddp vcswatch -- Debian Quality Assurance
pddebianqualityassurance
https://conservancy.umn.edu/items/a9c88d0b-0651-4ccf-b2f3-b738dca21fa2
Incremental PDDP for the Clustering of Large Data Sets
Principal Direction Divisive Partitioning (PDDP) is an unsupervised method for partitioning data into clusters. The original method was designed to be applied...
for thelarge dataincrementalclusteringsets
https://defseals.en.made-in-china.com/product-group/BblGjyQCfHWr/PDDP-1.html
PDDP - Guangdong DEF Seals Solutions Co., Ltd. - page 1.
China PDDP catalog of Reliable Industrial Piston Seal for Optimal Performance - Manufactured in China---Pddp, Reliable Piston Seal with Excellent Durability...
guangdongdefsealssolutionsco