Coursework

Small projects, made demonstrable.

Projects from my M.S. courses and SQL practice, grouped by subject. Each one started as a small program or script. Here each has a working demo you can use in the browser, with notes on what is real and what is simulated.

5 subjects, 11 demos

2 demos
Algorithms
Dynamic programming applied to biological sequences.
- Gene finding with a hidden Markov modelDecode a DNA sequence
- RNA secondary structure by dynamic programmingFold a sequence
Open Open the demos: Algorithms
3 demos
Computer Networks
Working directly with DNS messages, HTTPS range requests and network measurements.
- DNS forwarder with domain blocking and DNS-over-HTTPSSend a query through the forwarder
- Multi-threaded HTTPS file downloaderDownload a file in parallel
- Ping and traceroute statisticsExplore the traces
Open Open the demos: Computer Networks
4 demos
Distributed Computing Systems
Client-server protocols, concurrency control, group communication and consistent hashing.
- Simple FTP client and serverRun an FTP session
- Concurrent FTP with locking and terminateRun concurrent transfers
- Persistent multicast with a coordinatorRun a multicast group
- Distributed key-value service on a hash ringJoin, exit and look up
Open Open the demos: Distributed Computing Systems
1 demo
Database Management Systems
A relational design carried through to a working multi-role web application.
- Property management systemSwitch roles and manage a portfolio
Open Open the demo: Database Management Systems
1 demo
SQL
Analytical queries over a normalised job-postings dataset.
- SQL practice on a job-postings datasetRun the exercises on PostgreSQL
Open Open the demo: SQL

Algorithms

Computer Networks

Distributed Computing Systems

Database Management Systems

SQL