Have they not seen the birds above them spreading and closing their wings? None holds them up except the Most Gracious. Quran 67:19

Assistant Professor

Faculty of Mathematics, K. N. Toosi University of Technology.

**About me:**
I have graduated from Simon Fraser University in 2012 after defending a PhD thesis on
Data Stream Algorithms under the supervision of
Prof. Funda Ergun. Before joining KNTU, I spent a year at Warwick University collaborating with Graham Cormode on algorithms for massive
data sets. I have also done a postdoc at MADALGO research center in Aarhus University.

- Algorithms for big data
- Combinatorics and randomized algorithms

- An Estimator for Matching Size in Low Arboricity Graphs with Two Applications. to appear in
**APPROX 2021**.

H. Jowhari -
The Sparse Awakens: Streaming Algorithms for Matching Size Estimation in Sparse Graphs.
**ESA 2017**.

G. Cormode, H. Jowhari, M. Monemizadeh, S. Muthukrishnan -
Efficient Communication Protocols for Deciding Edit Distance.
**ESA 2012.**

H. Jowhari -
Tight Bounds for Lp Samplers, Finding Duplicates in Streams, and Related Problems.
**PODS 2011**.

H. Jowhari, M. Saglam, G. Tardos -
Periodicity in Streams.
**RANDOM 2010.**

F. Ergun, H. Jowhari, M. Saglam -
Improved Small Molecule Activity Determination via Centroid Nearest Neighbors Classification.
**CSB 2009.**

P. Dao, F. Hormozdiari, H. Jowhari, K. Byler, A. Cherkasov, C. Sahinalp -
On Distance to Monotonicity and Longest Increasing Subsequence of a Data Stream.
**SODA 2008.**

F. Ergun, H. Jowhari -
On Completing Latin Squares.
**STACS 2007.**

I. Hajirasouliha, H. Jowhari, R. Kumar, R. Sundaram -
New Streaming Algorithms for Counting Triangles in Graphs.
**COCOON 2005.**

H. Jowhari, M. Ghodsi

- Lp samplers and their applications: A survey.
**ACM Computing Surveys,**Volume 52, Issue 1 (2019)

G. Cormode, H. Jowhari - A Second Look at Counting Triangles in Graph Streams.
**Theoretical Computer Sceince,**Volume 683, Pages 22-30 (2017)

G. Cormode, H. Jowhari - On the Monotonicity of a Data Stream.
**Combinatorica,**Volume 35, pages 641–653 (2015)

F. Ergun, H. Jowhari