Timothy C. Bell

According to our database, Timothy C. Bell authored at least 113 papers between 1986 and 2024.

Collaborative distances:

• Dijkstra number of four.
• Erdős number of three.

2024

Using Conditions and Control Structures Effectively: Can We Measure This?

Henry Hickman, Tim Bell

Proceedings of the 19th WiPSCE Conference on Primary and Secondary Computing Education Research, 2024

Automated Assessment: Does It Align With Teachers' Views?

Henry Hickman, Tim Bell

Proceedings of the 19th WiPSCE Conference on Primary and Secondary Computing Education Research, 2024

Why Teach About Binary Numbers?

Tim Bell, Henry Hickman

Proceedings of the Creative Mathematical Sciences Communication: 7th International Conference, 2024

2023

Computational Thinking and Notional Machines: The Missing Link.

Bhagya Munasinghe, Timothy C. Bell, Anthony V. Robins

ACM Trans. Comput. Educ., December, 2023

Beyond Question Shuffling: Randomization Techniques in Programming Assessment.

Henry Hickman, Paul McKeown, Tim Bell

Proceedings of the IEEE Frontiers in Education Conference, 2023

Towards Automated Assessment of High School Programming.

Henry Hickman, Tim Bell

Proceedings of the IEEE Frontiers in Education Conference, 2023

2022

Providing a CS unplugged experience at a distance.

Tim Bell, Tracy Henderson

Inroads, 2022

Characterizing the Nature of Programs for educational purposes.

Violetta Lonati, Andrej Brodnik, Tim Bell, Andrew Paul Csizmadia, Liesbeth De Mol, Henry Hickman, Therese Keane, Claudio Mirolo, Mattia Monga, Matti Tedre

Proceedings of the ITiCSE 2022: Innovation and Technology in Computer Science Education, Dublin, Ireland, July 8, 2022

What We Talk About When We Talk About Programs.

Violetta Lonati, Andrej Brodnik, Tim Bell, Andrew Paul Csizmadia, Liesbeth De Mol, Henry Hickman, Therese Keane, Claudio Mirolo, Mattia Monga

Proceedings of the 2022 Working Group Reports on Innovation and Technology in Computer Science Education, 2022

2021

CS unplugged or coding classes?

Tim Bell

Commun. ACM, 2021

Computational thinking: online and offline, plugged and unplugged.

Tim Bell

Proceedings of the WiPSCE '21: The 16th Workshop in Primary and Secondary Computing Education, 2021

Teachers' understanding of technical terms in a Computational Thinking curriculum.

Bhagya Munasinghe, Tim Bell, Anthony V. Robins

Proceedings of the ACE '21: 23rd Australasian Computing Education Conference, 2021

2020

Revisiting code smells in block based languages.

Kashif Amanullah, Tim Bell

Proceedings of the WiPSCE '20: Workshop in Primary and Secondary Computing Education, 2020

The Cambridge Handbook of Computing Education Research Summarized in 75 minutes.

Colleen M. Lewis, Tim Bell, Paulo Blikstein, Adam S. Carter, Katrina Falkner, Sally A. Fincher, Kathi Fisler, Mark Guzdial, Patricia Haden, Sepehr Hejazi Moghadam, Michael S. Horn, Christopher D. Hundhausen, Amy J. Ko, Thomas Lancaster, Michael C. Loui, Lauren E. Margulieux, Leo Porter, Anthony V. Robins, Jean J. Ryoo, Niral Shah, R. Benjamin Shapiro, Kerry Shephard, Beth Simon, Mike Tissenbaum, Ian Utting, Jan Vahrenhold, Aman Yadav

Proceedings of the 51st ACM Technical Symposium on Computer Science Education, 2020

Teaching Teachers to Teach Computer Science - Unplugged or Plugged-in?

Tim Bell

Proceedings of the ICER 2020: International Computing Education Research Conference, 2020

Teaching Resources for Young Programmers: the use of Patterns.

Kashif Amanullah, Tim Bell

Proceedings of the IEEE Frontiers in Education Conference, 2020

2019

Analysis of Progression of Scratch Users based on their Use of Elementary Patterns.

Kashif Amanullah, Tim Bell

Proceedings of the 14th International Conference on Computer Science & Education, 2019

Evaluating the Use of Remixing in Scratch Projects Based on Repertoire, Lines of Code (LOC), and Elementary Patterns.

Kashif Amanullah, Tim Bell

Proceedings of the IEEE Frontiers in Education Conference, 2019

2018

Tensions in specifying computing curricula for K-12: Towards a principled approach for objectives.

Mary E. Webb, Tim Bell, Niki Davis, Yaacov J. Katz, Andrew E. Fluck, Maciej M. Syslo, Ivan Kalas, Margaret J. Cox, Charoula Angeli, Joyce Malyn-Smith, Torsten Brinda, Peter Micheuz, Andrej Brodnik

it Inf. Technol., 2018

Integrating Computational Thinking with a Music Education Context.

Judith Bell, Tim Bell

Informatics Educ., 2018

The Big Ideas in Computer Science for K-12 Curricula.

Tim Bell, Paul Tymann, Amiram Yehudai

Bull. EATCS, 2018

A Computer Science Study Abroad with Service Learning: Design and Reflections.

Lori L. Pollock, James Atlas, Tim Bell, Tracy Henderson

Proceedings of the 49th ACM Technical Symposium on Computer Science Education, 2018

What's the Big Idea with CS Education in K-12?

Tim Bell

Proceedings of the 49th ACM Technical Symposium on Computer Science Education, 2018

Analysing Students' Scratch Programs and Addressing Issues using Elementary Patterns.

Kashif Amanullah, Tim Bell

Proceedings of the IEEE Frontiers in Education Conference, 2018

CS Unplugged - How Is It Used, and Does It Work?

Tim Bell, Jan Vahrenhold

Proceedings of the Adventures Between Lower Bounds and Higher Altitudes, 2018

2017

Computer science in K-12 school curricula of the 2lst century: Why, what and when?

Mary Webb, Niki Davis, Tim Bell, Yaacov J. Katz, Nicholas Reynolds, Dianne P. Chambers, Maciej M. Syslo

Educ. Inf. Technol., 2017

Computer Science in the School Curriculum: Issues and Challenges.

Mary Webb, Tim Bell, Niki Davis, Yaacov J. Katz, Nicholas Reynolds, Dianne P. Chambers, Maciej M. Syslo, Andrew E. Fluck, Margaret J. Cox, Charoula Angeli, Joyce Malyn-Smith, Joke Voogt, Jason Zagami, Peter Micheuz, Yousra Chtouki, Natasa Mori

Proceedings of the Tomorrow's Learning: Involving Everyone. Learning with and about Technologies and Computing, 2017

What do the Teachers Think?: Introducing Computational Thinking in the Primary School Curriculum.

Caitlin Duncan, Tim Bell, James Atlas

Proceedings of the Nineteenth Australasian Computing Education Conference, 2017

2016

Demystifying coding for schools - what are we actually trying to teach?

Tim Bell

Bull. EATCS, 2016

Teacher Feedback on Delivering Computational Thinking in Primary School.

Tim Bell, Caitlin Duncan, James Atlas

Proceedings of the 11th Workshop in Primary and Secondary Computing Education, 2016

2015

A Pilot Computer Science and Programming Course for Primary School Students.

Caitlin Duncan, Tim Bell

Proceedings of the Workshop in Primary and Secondary Computing Education, 2015

Virtually Unplugged: Rich Data Capture to Evaluate CS Pedagogy in 3D Virtual Worlds.

David Thompson, Timothy C. Bell

Proceedings of the 2015 International Conference on Learning and Teaching in Computing and Engineering, 2015

Surprising Computer Science.

Tim Bell

Proceedings of the Informatics in Schools. Curricula, Competences, and Competitions, 2015

2014

Ubiquity symposium: The science in computer science: unplugging computer science to find the science.

Tim Bell

Ubiquity, 2014

A Case Study of the Introduction of Computer Science in NZ Schools.

Tim Bell, Peter Andreae, Anthony V. Robins

ACM Trans. Comput. Educ., 2014

Establishing a nationwide CS curriculum in New Zealand high schools.

Tim Bell

Commun. ACM, 2014

A game to teach network communication reliability problems and solutions.

Sam Jarman, Tim Bell

Proceedings of the 9th Workshop in Primary and Secondary Computing Education, 2014

Should your 8-year-old learn coding?

Caitlin Duncan, Tim Bell, Steve Tanimoto

Proceedings of the 9th Workshop in Primary and Secondary Computing Education, 2014

Simple Arabic Stemmer.

Mohammed Algarni, Brent Martin, Tim Bell, Kourosh Neshatian

Proceedings of the 23rd ACM International Conference on Conference on Information and Knowledge Management, 2014

2013

Pattern Matching in Compressed Texts and Images.

Donald A. Adjeroh, Tim Bell, Amar Mukherjee

Found. Trends Signal Process., 2013

Adoption of new computer science high school standards by New Zealand teachers.

David Thompson, Tim Bell

Proceedings of the 8th Workshop in Primary and Secondary Computing Education, 2013

Teaching black-box testing to high school students.

Amitrajit Sarkar, Tim Bell

Proceedings of the 8th Workshop in Primary and Secondary Computing Education, 2013

Evaluation of games for teaching computer science.

Ben Gibson, Tim Bell

Proceedings of the 8th Workshop in Primary and Secondary Computing Education, 2013

The role of teachers in implementing curriculum changes.

David Thompson, Tim Bell, Peter Andreae, Anthony V. Robins

Proceedings of the 44th ACM Technical Symposium on Computer Science Education, 2013

Computer science unplugged, robotics, and outreach activities (abstract only).

Tim Bell, Daniela Marghitu, Lynn Lambert, Paul Curzon

Proceedings of the 44th ACM Technical Symposium on Computer Science Education, 2013

2012

The introduction of computer science to NZ high schools: an analysis of student work.

Tim Bell, Heidi Newton, Peter Andreae, Anthony V. Robins

Proceedings of the Workshop in Primary and Secondary Computing Education, 2012

Computer science unplugged, robotics, and outreach activities (abstract only).

Tim Bell, Daniela Marghitu, Lynn Lambert

Proceedings of the 43rd ACM technical symposium on Computer science education, 2012

CS unplugged, outreach and CS kinesthetic activities (abstract only).

Tim Bell, Lynn Lambert, Daniela Marghitu

Proceedings of the 43rd ACM technical symposium on Computer science education, 2012

Computer science in NZ high schools: the first year of the new standards.

Tim Bell, Peter Andreae, Anthony V. Robins

Proceedings of the 43rd ACM technical symposium on Computer science education, 2012

Lessons in iOS Device Configuration Management.

Tim Bell

Proceedings of the Strategies, 2012

Computer Science Unplugged and Related Projects in Math and Computer Science Popularization.

Tim Bell, Frances A. Rosamond, Nancy Casey

Proceedings of the Multivariate Algorithmic Revolution and Beyond, 2012

2011

Teaching computer science majors about teaching computer science.

Tim Bell, Lynn Lambert

Proceedings of the 42nd ACM technical symposium on Computer science education, 2011

Sorting algorithms as special cases of a priority queue sort.

Tim Bell, Bengt Aspvall

Proceedings of the 42nd ACM technical symposium on Computer science education, 2011

Introducing students to computer science with programmes that don't emphasise programming.

Tim Bell, Paul Curzon, Quintin I. Cutts, Valentina Dagiene, Bruria Haberman

Proceedings of the 16th Annual SIGCSE Conference on Innovation and Technology in Computer Science Education, 2011

Overcoming Obstacles to CS Education by Using Non-programming Outreach Programmes.

Tim Bell, Paul Curzon, Quintin I. Cutts, Valentina Dagiene, Bruria Haberman

Proceedings of the Informatics in Schools. Contributing to 21st Century Education, 2011

2010

Tools and Technologies for Building Clouds.

Hai Jin, Shadi Ibrahim, Tim Bell, Li Qi, Haijun Cao, Song Wu, Xuanhua Shi

Proceedings of the Cloud Computing, Principles, Systems and Applications, 2010

Data Hiding in Virtual Machine Disk Images.

Yu Su, Xiaofei Liao, Hai Jin, Tim Bell

Proceedings of the 10th IEEE International Conference on Computer and Information Technology, 2010

Cloud Types and Services.

Hai Jin, Shadi Ibrahim, Tim Bell, Wei Gao, Dachuan Huang, Song Wu

Proceedings of the Handbook of Cloud Computing., 2010

2009

A CS unplugged design pattern.

Tomohiro Nishida, Susumu Kanemune, Yukio Idosaka, Mitaro Namiki, Tim Bell, Yasushi Kuno

Proceedings of the 40th SIGCSE Technical Symposium on Computer Science Education, 2009

An ajax-based digital music stand for greenstone.

David Bainbridge, Timothy C. Bell

Proceedings of the 2009 Joint International Conference on Digital Libraries, 2009

Enthusing & inspiring with reusable kinaesthetic activities.

Paul Curzon, Peter W. McOwan, Quintin I. Cutts, Tim Bell

Proceedings of the 14th Annual SIGCSE Conference on Innovation and Technology in Computer Science Education, 2009

Combining Simulation and Animation of Queueing Scenarios in a Flash-Based Discrete Event Simulator.

Ruzelan Khalid, Wolfgang Kreutzer, Tim Bell

Proceedings of the Information Systems: Modeling, 2009

2008

Computing Pre-University: Primary Computing Education.

Tim Bell, Giovanni M. Bianco

Proceedings of the Wiley Encyclopedia of Computer Science and Engineering, 2008

Designing offline computer science activities for the korean elementary school curriculum.

SookKyoung Choi, Tim Bell, Soo Jin Jun, Won-Gyu Lee

Proceedings of the 13th Annual SIGCSE Conference on Innovation and Technology in Computer Science Education, 2008

2007

BWT-based efficient shape matching.

Donald A. Adjeroh, Uma Kandaswamy, Nan Zhang, Amar Mukherjee, M. T. Brown, Tim Bell

Proceedings of the 2007 ACM Symposium on Applied Computing (SAC), 2007

2006

Identifying music documents in a collection of images.

David Bainbridge, Tim Bell

Proceedings of the ISMIR 2006, 2006

Improving network efficiency in real-time groupware with general message compression.

Carl Gutwin, Christopher Fedak, Mark Watson, Jeff Dyck, Tim Bell

Proceedings of the 2006 ACM Conference on Computer Supported Cooperative Work, 2006

Enhancement of Moment Based Painterly Rendering Using Connected Components.

Mohammad Obaid, Ramakrishnan Mukundan, Tim Bell

Proceedings of the Third International Conference on Computer Graphics, 2006

2005

A comparison of BWT approaches to string pattern matching.

Andrew E. Firth, Tim Bell, Amar Mukherjee, Donald A. Adjeroh

Softw. Pract. Exp., 2005

Fast Capture of Sheet Music for an Agile Digital Music Library.

Richard Lobb, Tim Bell, David Bainbridge

Proceedings of the ISMIR 2005, 2005

Design of a Digital Music Stand.

Tim Bell, David Blizzard, Richard D. Green, David Bainbridge

Proceedings of the ISMIR 2005, 2005

Page turning and Image Size in a Digital Music Stand.

Tim Bell, Annabel Church, John R. McPherson, David Bainbridge

Proceedings of the 2005 International Computer Music Conference, 2005

2003

A music notation construction engine for optical music recognition.

David Bainbridge, Tim Bell

Softw. Pract. Exp., 2003

Explaining cryptographic systems.

Tim Bell, Harold W. Thimbleby, Mike Fellows, Ian H. Witten, Neal Koblitz, Matthew Powell

Comput. Educ., 2003

Approximate Pattern Matching Using the Burrows-Wheeler Transform.

Nan Zhang, Amar Mukherjee, Donald A. Adjeroh, Tim Bell

Proceedings of the 2003 Data Compression Conference (DCC 2003), 2003

2002

Searching BWT Compressed Text with the Boyer-Moore Algorithm and Binary Search.

Tim Bell, Matt Powell, Amar Mukherjee, Donald A. Adjeroh

Proceedings of the 2002 Data Compression Conference (DCC 2002), 2002

Pattern Matching in BWT-Transformed Text.

Donald A. Adjeroh, Tim Bell, Matt Powell, Nan Zhang, Amar Mukherjee

Proceedings of the 2002 Data Compression Conference (DCC 2002), 2002

DNA Sequence Compression Using the Burrows-Wheeler Transform.

Donald A. Adjeroh, Yong Zhang, Amar Mukherjee, Matt Powell, Tim Bell

Proceedings of the 1st IEEE Computer Society Bioinformatics Conference, 2002

Computer Science Unplugged - an enrichment and extension programme for primary-aged children.

Tim Bell, Ian H. Witten, Michael R. Fellows

csunplugged.org, 2002

2001

Compression of sparse matrices by blocked rice coding.

Bruce J. McKenzie, Timothy C. Bell

IEEE Trans. Inf. Theory, 2001

The Challenge of Optical Music Recognition.

David Bainbridge, Tim Bell

Comput. Humanit., 2001

Death to the Office of the Nineties: An HCI Perspective on Some Problems in Modern Office Information Systems.

Andy Cockburn, Timothy C. Bell, Bruce J. McKenzie

J. Res. Pract. Inf. Technol., 2001

2000

Integrating Paper and Digital Music Information Systems.

Karen Lin, Tim Bell

Proceedings of the ISMIR 2000, 2000

A Low-Cost High-Impact Computer Science Show for Family Audiences.

Tim Bell

Proceedings of the 23rd Australasian Computer Science Conference (ACSC 2000), 31 January, 2000

1999

Managing Gigabytes: Compressing and Indexing Documents and Images, Second Edition

Ian H. Witten, Alistair Moffat, Timothy C. Bell

Morgan Kaufmann, ISBN: 1-55860-570-3, 1999

1998

Compression of Sparse Matrices by Arithmetic Coding.

Timothy C. Bell, Bruce J. McKenzie

Proceedings of the Data Compression Conference, 1998

Extending HCI in the computer science curriculum.

Andy Cockburn, Tim Bell

Proceedings of the ACM SIGCSE 3rd Australasian Conference on Computer Science Education, 1998

1997

A Corpus for the Evaluation of Lossless Compression Algorithms.

Ross Arnold, Timothy C. Bell

Proceedings of the 7th Data Compression Conference (DCC '97), 1997

1996

An authentic task based computer literacy course.

Tim Bell

Proceedings of the ACM SIGCSE 1st Australasian Conference on Computer Science Education, 1996

1995

The role of compression in document databases.

Alistair Moffat, Justin Zobel, Ian H. Witten, Timothy C. Bell

SIGWEB Newsl., 1995

The MG Retrieval System: Compressing for Space and Speed.

Timothy C. Bell, Alistair Moffat, Ian H. Witten, Justin Zobel

Commun. ACM, 1995

A New Zealand Digital Library for Computer Science Research.

Ian H. Witten, Sally Jo Cunningham, Mahendra Vallabh, Timothy C. Bell

Proceedings of the Second Annual Conference on the Theory and Practice of Digital Libraries, 1995

1994

Textual image compression: two-stage lossy/lossless encoding of textual images.

Ian H. Witten, Timothy C. Bell, Hugh Emberson, Stuart Inglis, Alistair Moffat

Proc. IEEE, 1994

The Relationship between Greedy Parsing and Symbolwise Text Compression.

Timothy C. Bell, Ian H. Witten

J. ACM, 1994

An Empirical Evaluation of Coding Methods for Multi-symbol Alphabets.

Alistair Moffat, Neil Sharman, Ian H. Witten, Timothy C. Bell

Inf. Process. Manag., 1994

Semantic and Generative Models for Lossy Text Compression.

Ian H. Witten, Timothy C. Bell, Alistair Moffat, Craig G. Nevill-Manning, Tony C. Smith, Harold W. Thimbleby

Comput. J., 1994

Compression and Full-Text Indexing for Digital Libraries.

Ian H. Witten, Alistair Moffat, Timothy C. Bell

Proceedings of the Digital Libraries: Current Issues, 1994

A Hybrid Approach to Text Compression.

Peter C. Gutmann, Timothy C. Bell

Proceedings of the IEEE Data Compression Conference, 1994

Managing Gigabytes: Compressing and Indexing Documents and Images.

Ian H. Witten, Alistair Moffat, Timothy C. Bell

Van Nostrand Reinhold, ISBN: 0-442-01863-0, 1994

1993

Longest-match String Searching for Ziv-Lempel Compression.

Timothy C. Bell, David Kulp

Softw. Pract. Exp., 1993

Data Compression in Full-Text Retrieval Systems.

Timothy C. Bell, Alistair Moffat, Craig G. Nevill-Manning, Ian H. Witten, Justin Zobel

J. Am. Soc. Inf. Sci., 1993

Getting research students started: a tale of two courses.

Ian H. Witten, Timothy C. Bell

Proceedings of the 24th SIGCSE Technical Symposium on Computer Science Education, 1993

An Empirical Evaluation of Coding Techniques for Multi-Symbol Alphabets.

Alistair Moffat, Neil Sharman, Ian H. Witten, Timothy C. Bell

Proceedings of the IEEE Data Compression Conference, 1993

1992

Compression of Parallel Texts.

Craig G. Nevill-Manning, Timothy C. Bell

Inf. Process. Manag., 1992

Textual Image Compression.

Ian H. Witten, Timothy C. Bell, M. E. Harrison, Mark L. James, Alistair Moffat

Proceedings of the IEEE Data Compression Conference, 1992

1991

The zero-frequency problem: Estimating the probabilities of novel events in adaptive text compression.

Ian H. Witten, Timothy C. Bell

IEEE Trans. Inf. Theory, 1991

Indexing and compressing full-text databases for CD-ROM.

Ian H. Witten, Timothy C. Bell, Craig G. Nevill

J. Inf. Sci., 1991

Models for Compression in Full-Text Retrieval Systems.

Ian H. Witten, Timothy C. Bell, Craig G. Nevill-Manning

Proceedings of the IEEE Data Compression Conference, 1991

1990

Selecting a Hashing Algorithm.

Bruce J. McKenzie, R. Harries, Timothy C. Bell

Softw. Pract. Exp., 1990

Source Models for Natural Language Text.

Ian H. Witten, Timothy C. Bell

Int. J. Man Mach. Stud., 1990

1989

Modeling for Text Compression.

Timothy C. Bell, Ian H. Witten, John G. Cleary

ACM Comput. Surv., 1989

A Note on the DMC Data Compression Scheme.

Timothy C. Bell, Alistair Moffat

Comput. J., 1989

1986

Better OPM/L Text Compression.

Timothy C. Bell

IEEE Trans. Commun., 1986