Professional Activities

· Editorial Board:  Data & Knowledge Engineering Journal

· Tutorial speaker, Tutorial on Graph mining, ICDE, Istanbul, 2007.

· Program Chair

IFIF WG11.3 Conference on Data and Application Security, Montreal, Canada, 2009

IFIF WG11.3 Conference on Data and Application Security, Cambridge, England, 2002

· Program Committees

1. Parbase - 90, Int. Conference on Databases and Parallel Architectures.

2. VLDB94.

3. IFIP WG11.3 – from 1995 - to present.

4. 13 ICDE Conference, 1996.

5. Israel Software Engineering Conference, Herzelia, 1996

6. Israel SE Conference, 1997.

7. NGITS – 97; NGITS – 99, NGITS-2002, NGITS 2006

8. TRUSTBUS 2004, 2005, 2006, 2007

9. SDM (Secure Data management) 2005, 2006, 2007

10. Seventh 8th, 9th, 10th, 14th, Israeli Conference in Artificial Intelligence.

11. WOSIS 2007

12. IFIP2008, TRUSTBUS2008, EDBT2008

13 IFIP2009, SDM2009,TRUSTBUS2009.

· Head – Software Engineering program at BGU

· Seminars at universities and institutions (last ten years only)

Invited guest, Eric Samson Chair, Rand Africans University, South Africa, 1997

University of Capetown, 1997

Invited speaker, Bar-Ilan Workshop on Knowledge Discovery, May, 1998

Rutgers Univ. - 1999

Bell-Labs -1999

Univ. of Conneticut - 1999

Florida Atlantic Univ. – 1999, 2003, 2008

Fiee University Amsterdam – 2001

George Mason University – 2001, 2003

Fukuka University, Japan – 2002

University of Milano – 2002

Unversity of chile, Santiago - 2003

Technion - 2004

Monash, Australia - 2005

Melbourne U., Australia - 2005

Cambridge U., UK - 2005

Technion – 2006

U. of Cambridge – 2006

Prime minister office – 2006

Hebrew University – 2007

Technion – 2007

University of Munich – 2007

Bar-Ilan university – 2008

University of Dortmund - 2008