Add /timeline directory

- /timeline will hopefully contain what I did every week and what I plan for
  the next.

- For keeping track I just use simple text files. Sorry orgmode users!

timeline/week17.txt

+Week 17 (20.04.-26.04.)
+=======================
+
+[x] set up dev enviroment
+
+	[x] set up backups of git@snufkin
+
+	[x] create VM
+
+		[-] try setting it up in ciptmp
+
+		[x] set it up on nuc
+
+	[x] think of a backup strategy
+
+		-> for now I'm just experimenting
+		-> put important things into Git
+		-> consideer the vm to be volatile
+
+[x] look up related lectures
+
+	[x] WuV -> no sign up required; first lecture on 23rd
+
+	[x] Logic Based Knowledge Representation -> zoom only; starting on 23rd
+
+[~] familiarize yourself w/ some tooling
+
+	[~] play around w/ Virtuso
+
+		-> binary packages [1] are available but don't seem to conform
+		   to the directory structure described in the docs
+
+		-> for building it yourself, you need libssl1.0 [2];
+		   ugh; a very nice individual provides a script for
+		   building everything yourself [3]
+
+		-> importing rdf works [4, 5]; only tried the coq dataset
+		   so far
+
+		-> importing isabelle libraries also works; funnly enough the import
+		   randomly fails however, breaking my import script of the many
+		   small files; I'll have to build in some kind of retry
+
+		-> retrying failed imports seems to work, but importing everything
+		   creates some worrying logs
+
+			17:09:31 *** read-ahead of a free or out of
+			range page dp L=154972, database not
+			necessarily corrupted.
+
+		   dunno if that's related to my small disk space on my current
+		   setup; I'll try again with my new disk which should arrive next
+		   week
+
+	[~] play around w/ GraphDB
+
+		-> default install wants x for a simple gui; a "server" install
+		   is probably what we want; I'll play with the regular install
+		   for now
+
+		-> tried importing https://gl.mathhub.info/Coqxml/coq.8.9.0; fails
+		   as the rdf has a "tmpuri"; I imagine that is either (1) not
+		   desired in the export or (2) s.t. not supported by GraphDB
+
+	[x] download source data
+
+	[x] coq library
+
+		-> https://gl.mathhub.info/Coqxml/coq.8.9.0
+
+	[x] isabell library
+
+		-> https://gl.mathhub.info/Isabelle
+
+	[x] ulo ontology
+
+		-> https://gl.mathhub.info/ulo/ulo/blob/master/ulo.owl
+
+	[-] destination data?!
+
+		-> I only downloaded the already transfered triplets;
+		   for the topic of this work the conversation isn't really relevant;
+		   what I care about is querying RDF that uses ULO
+
+[~] reproduce ULO paper
+
+	[x] download source ontologies
+
+References
+==========
+
+[1] http://vos.openlinksw.com/owiki/wiki/VOS/VOSDownload#Pre-built%20binaries
+[2] https://launchpad.net/ubuntu/bionic/+package/libssl1.0-dev
+[3] https://gist.github.com/sven-h/b53aa87b78030fd97444d61580c67e1f#file-build_virtuoso-sh
+[4] http://docs.openlinksw.com/virtuoso/fn_rdf_load_rdfxml_mt/
+[5] https://stackoverflow.com/questions/41273536/virtuoso-isql-data-import-cant-stat-file

timeline/week18.txt

+Week 17 (20.04.-26.04.)
+=======================
+
+[ ] familiarize yourself w/ some tooling
+
+	[ ] run all queries from ulo paper in virtuoso
+
+	[ ] import all data into graphdb
+
+	[ ] run all quries from ulo paper in graphdb
+
+[ ] familiarize w/ MathHub infastructure
+
+	[ ] look at tooling; user interface &c
+
+	[ ] look at programming interfaces
+
+	[ ] evaluate databases for integration w/ MathHub
+
+References
+==========
+