Oliver Chang (Work Log)

Oliver Chang Work Logs (logpage)

Current Primary Project: Parallel Enclosing Circle Algorithm

Other Projects:

• Reproducible Patent Data
• Predictive Patent Validity Machine Learning Ideas
• Equivalent XPath and APS Queries
• US Address Verification
• GPU Computer Build

Uploads:

• File:PADX-File-Description-v2 Hague.pdf
  • Describes patent kind codes (notably, what the hell X0 represents)
• File:PatentFullTextAPSDoc GreenBook pgs13-22.pdf
  • Describes the fields in APS, their supposed character lengths, and if they are required/optional
• File:Aps-wku-modulus11.pdf
  • Describes the layout of the check digit on magnetic tape
• File:Mod-11-algorithm.pdf
  • Describes the algorithm used to calculate the check digit

Day-by-Day (in reverse chronological order)

July 2017

• July 31: sketch out parallel enclosing circle algorithm
• July 28: field questions and data cleanup questions from Kerda & Joe & Adrian
• travelling
• July 19: try to remove duplicated records (esp. those with empty titles) which are preventing the addition of a unique constraint
• July 18: run correspondent join on properties and correspondents table to match previous project; sync with Adrian and Abhi
• July 17: redo db operations after cleaning up granted patent number bugs
• July 13: powwow about parallelizing Enclosing Circle Algorithm; sketch out what to do for the rest of the summer; work more on joins
• July 12: generate some example data illustrating the difficulty of joining different tables
• July 11: track down some bugs that happen very rarely and were missed in the initial qa phase
• July 7: catch up on documentation
• July 6: try (unsuccessfully) to understand docid mapping...create exploration scripts
• July 5: add invention title to proper grouping of assignment properties; optimize XML parsing

June 2017

• June 30: powwow with James, Abhi, Ed about optimization issues; discuss document ids, X0 etc with Ed; pinpoint issues with APS doc numbers (see Repro Pat Dat#Gotchas) for more info
• June 29: add logging of copy commands, more chattiness to scripts, debug assignment data failure
• June 28: create examples for expansion to plant, reissue, design patent collection; start optimizing xml
• June 27: write SQL to replicate assignees, extract postcodes for ongoing projects
• June 26: speedup code, abstract in-memory file splitters to avoid repetition and some weird edge cases
• June 25: create mappings for APS, assignment properties, XML 2.5 for data import; run data imports for granted data
• June 23: cleanup hacky models with a better set of abstractions; cleanup IDE warnings; redefine patent-address mapping
• June 22: create postcode<->patent table
• June 21: document granted patent queries and equivalencies
• June 20: sketch out APS driver; discuss patent id problem; further document with evidence the zipcode data validity
• June 19: skim address regular expressions; cursory investigation of patent table
• June 16: create method of getting all data into the database, whether it likes it or not; copy over assignments, granted data using new scheme
• June 15: add more robust error reporting, fix race conditions; build out assignment driver; build out fee event driver; add error logging
• June 14: migrate bulk inserts to copy command; refresh on address data and start in on that; convert processor to multi-threaded application
• June 13: spot check SQL tables; fix broken final case endlessly looping; investigate smarter insert methods
• June 12: add XML printer, use it to inspect applications; extend BaseScraper to fetch patent application data; add applications documentation to my project page; add CREATE of other tables
• June 8: add foreign key inserts; create pretty printer for XML analysis
• June 7: finalize DB abstraction layer; migrate code to bulk inserts; upgrade webserver software and do optimization on RDP postgres with Ed
• June 6: add jdbc; create basic schema; add db interaction; schedule meeting for later in the week
• June 5: look into postgresql; refersh on postgis; add some notes to the Enclosing Circle Algorithm page
• June 1: add RDP git remote; add more documentation to wiki page; refactor downloader scripts; start creation of tooling for interacting with data

May 2017

• May 31: finish copy-pasting attributes into the wiki page; retroactively fill out work log; meet with Ed to discuss next steps
• May 30: update documentation on wiki, restructure large binary files to have more hierarchy instead of a flat listing at the root
• May 29: expand to APS; expand to raw assignment data
• May 27: expand to maintenance fee data
• May 26: create models, translate xmlparser*.pl file into Java; start using builder pattern
• May 25: sketch out OO design of project; download bulk data
• May 24: move wiki pages around; start git repository for project
• May 21: discuss technical details of previous work with Ed
• May 8: cleanup dead links on wiki and start reading about previous work; discuss current project status with Ed
• May 4: setup wiki account, rdp account, database training