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Dr. Ali Tahir
Assistant Professor
Geographical Information System & Remote Sensing

National University of Sciences and Technology (NUST)
IGIS Building (2nd Floor)
Tel : 051-9085-4476


Post-Doctoral (Geoinformatics: Low Carbon Toolkit, Cardiff University, UK), PhD (Geoinformatics, University College Dublin, Ireland), MS (GIS, University of Nottingham, UK), BS (Computer Science, Oxford Brookes University, UK)

Dr. Ali Tahir received his B.Sc. (Hon​s.) degree in Computing and Information Systems in 2004 from Oxford Brookes University and subsequently a Masters degree in Geographical Information Science (GIS) from University of Nottingham in 2006. He completed his PhD in Geoinformatics from the School of Computer Science and Informatics at University College Dublin, Ireland. Recently, he has completed his post-doctorate at the Geo-Environmental Research Centre, School of Engineering, Cardiff University.

Research Areas:

  • Geovisualisation
  • Geovisual Analysis
  • Human-Computer Interaction
  • Web GIS


  • G. McArdle, A. Tahir, M. Bertolotto  (2013) Interpreting Map Usage Patterns using Geovisual Analytics and Spatio-Temporal Clustering ' International Journal of Digital Earth, Special Issue on “Geovisual Analytics: Technology and Human Factors. 1-24. [ Download ]

  • A. Ballatore, A. Tahir, G. McArdle, M. Bertolotto. ‘A Comparison of Open Source Geospatial Technologies for Web Mapping’. International Journal of Web Engineering and Technology. Inderscience. 6 (4) 354-374. 2011. [ Download ]

  • A. Tahir, G. McArdle & M. Bertolotto, ‘A Geovisual Analytics Approach for Mouse Movement Analysis’, International Journal of Data Mining, Modeling and Management. Special Issue on Spatial Information Mining, Modeling and Management, Inderscience, IN PRESS, 6(4). 2014. [ Download ]

  • A. Tahir (2010). 'Personalised Map Interfaces - Understanding Individual Users' GIM International - The Global Magazine for Geomatics 24 (5) :26-28. [ Download ]


  • A. Tahir, G. McArdle, M. Bertolotto, Comparing close destination and route-based similarity metrics for the analysis of map user trajectories, In 12th International Conference on Web and Wireless Geographical Information Systems. W2GIS 2013, Lecture Notes in Computer Science - Springer. pp. 117-128, 7820, 2013.  [ Download ]

  • R. B. Braga, A. Tahir, M. Bertolotto & H. Martin, A multi-layer data representation of trajectories in social networks based on points of interest,. Proceedings of the Twelfth International Workshop on Web Information and Data Management. WIDM 2012, Collocated with the CIKM 2012 conference, ACM. pp. 19-26, 2012.  [ Download ]

  • e, A. Tahir & M. Bertolotto, Spatio-temporal clustering of movement data: an application to trajectories generated by Human-Computer Interaction, The Annals of International Society for Photogrammetry and Remote Sensing. ISPRS 2012, I-2, pp. 147-152. 2012.  [ Download ]

  • R. B. Braga, A. Tahir, M. Bertolotto & H. Martin, Clustering user trajectories to find patterns for social interaction applications., In 11th International Conference on Web and Wireless Geographical Information Systems. W2GIS 2012, Lecture Notes in Computer Science - Springer. pp. 82-97, 7236, 2012.   [ Download ]

  • A. Tahir, G. McArdle & M. Bertolotto, Identifying Specific Spatial Tasks through Clustering and Geovisual Analysis, IEEE Proceedings. Geoinformatics 2012. pp. 1-6. 2012. [ Download ]

  • A.T
  • ahir & M. Bertolotto, An Open-Source Web architecture for adaptive location based services, In Proccedings 14th International Symposium on Spatial Data Handling (SDH), International Archives of Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol. XXXVIII / 2, pp. 296-301. Hong Kong, May 26-28, 2010.  [ Download ]

  • A. Tahir, G. McArdle & M. Bertolotto, Visualising user interaction history to identify Web map usage patterns, In Proceedings of AGILE 2011, Utrecht, April 18-21, 2011.  [ Download ]

  • A. Tahir, G. McArdle & M. Bertolotto, A Web-based visualisation tool for analysing mouse movements to support map personalisation, In Proceedings of the First International Workshop on Spatial Information Modeling, Management and Mining (SIM3) (in conjunction with DASFAA2011), Lecture Notes in Computer Science, pp. 132-143, Springer, Hong Kong, April 22-25, 2011.  [ Download ]

  • A. Tahir, G. McArdle, A. Ballatore & M. Bertolotto, Collaborative filtering - A group profiling algorithm for personalisation in a spatial recommender system. In Proceedings of Geoinformatik 2010, pp. 44-50. Kiel, Germany, March 17-19, 2010.  [ Download ]

1.  Dec, 2006- Aug 2009, Lecturer, IGIS, NUST, Islamabad.

2.  May, 2014- t0 date Assistant Professor, GIS & Remote Sensing IGIS, NUST, Islamabad.

Taught to UG and PG Students:
  • Web GIS
  • Advanced Geodatabase and Programming
  • Database and Information Systems
  • Spatial Decision Support Systems
  • Computer Science in Practice
  • Internet Technologies
  • Java Programming- Object Oriented
  • Software Engineering Project
  • Foundations of Computing
  • Advanced Spatial Data Management
  • Online Support for Forensic Computing and Cybercrime Investigation 
  • Spatial Databases