My research focuses on designing new distributed and parallel algorithms, the distributed processing of big data, achieving fault-tolerance in communication networks against adversarial attacks, and developing robust protocols that work in highly dynamic environments such as peer-to-peer Blockchain networks and mobile ad-hoc networks.

News

Publications

2019
  • The Complexity of Symmetry Breaking in Massive Graphs.DOI
    Christian Konrad, Sriram V. Pemmaraju, Talal Riaz, and Peter Robinson. 32nd International Symposium on Distributed Computing LIPIcs, Vol. 146 (DISC 2019).

Code

I'm interested in parallel and distributed programming and related technologies such as software transactional memory and the actor-model. Recently, I have been working on implementing a simulation environment for distributed algorithms in Elixir/Erlang, and implementing non-blocking data structures in Haskell suitable for multi-core machines. Below is a (non-comprehensive) list of software that I have written.
  • concurrent hash table: a thread-safe hash table that scales to multicores.
  • data dispersal: an implementation of an (m,n)-threshold information dispersal scheme that is space-optimal.
  • secret sharing: an implementation of a secret sharing scheme that provides information-theoretic security.
  • tskiplist: a data structure with range-query support for software transactional memory.
  • stm-io-hooks: An extension of Haskell's Software Transactional Memory (STM) monad with commit and retry IO hooks.
  • Mathgenealogy: Visualize your (academic) genealogy! A program for extracting data from the Mathematics Genealogy project.
  • I extended Haskell's Cabal, for using a "world" file to keep track of installed packages. (Now part of the main distribution.)

Teaching

  • Database Systems, Spring 2020.
  • Computer Networks, Fall 2019.
  • Distributed Computing, Spring 2019.
  • Randomized Algorithms, Fall 2018: Intro slides. Part 1 on Concentration Bounds.
  • Advanced Distributed Systems, Fall 2016, 2017.
  • Computation with Data, Fall 2016.
  • Internet and Web Technologies, Spring 2016.
  • Networks and Communications, Fall 2015.

Misc