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ORCIDTimothy C. Bell
Tim Bell 0001
Person information
- affiliation: University of Canterbury, Christchurch, New Zealand
Other persons with the same name
- Tim Bell 0002 — BECS Technology, Inc., St. Louis, MO, USA
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2020 – today
- 2024
[c73]Tim Bell
, Henry Hickman:
Why Teach About Binary Numbers? CMSC 2024: 130-135- [c72]Henry Hickman, Tim Bell:
Automated Assessment: Does It Align With Teachers' Views? WiPSCE 2024: 10:1-10:10 - [c71]Henry Hickman, Tim Bell:
Using Conditions and Control Structures Effectively: Can We Measure This? WiPSCE 2024: 32:1-32:2 - 2023
- [j34]Bhagya Munasinghe, Timothy C. Bell, Anthony V. Robins:
Computational Thinking and Notional Machines: The Missing Link. ACM Trans. Comput. Educ. 23(4): 44:1-44:27 (2023) - [c70]Henry Hickman, Tim Bell:
Towards Automated Assessment of High School Programming. FIE 2023: 1-9 - [c69]Henry Hickman, Paul McKeown, Tim Bell:
Beyond Question Shuffling: Randomization Techniques in Programming Assessment. FIE 2023: 1-9 - 2022
- [j33]Tim Bell, Tracy Henderson:
Providing a CS unplugged experience at a distance. Inroads 13(4): 26-31 (2022) - [c68]Violetta Lonati, Andrej Brodnik, Tim Bell, Andrew Paul Csizmadia, Liesbeth De Mol, Henry Hickman, Therese Keane, Claudio Mirolo, Mattia Monga:
What We Talk About When We Talk About Programs. ITiCSE-WGR 2022: 117-164 - [c67]Violetta Lonati, Andrej Brodnik, Tim Bell, Andrew Paul Csizmadia, Liesbeth De Mol, Henry Hickman, Therese Keane, Claudio Mirolo, Mattia Monga, Matti Tedre:
Characterizing the Nature of Programs for educational purposes. ITiCSE (2) 2022: 572-573 - 2021
- [j32]Tim Bell:
CS unplugged or coding classes? Commun. ACM 64(5): 25-27 (2021) - [c66]Bhagya Munasinghe, Tim Bell, Anthony V. Robins:
Teachers' understanding of technical terms in a Computational Thinking curriculum. ACE 2021: 106-114 - [c65]Tim Bell:
Computational thinking: online and offline, plugged and unplugged. WiPSCE 2021: 1:1 - 2020
- [c64]Kashif Amanullah, Tim Bell:
Teaching Resources for Young Programmers: the use of Patterns. FIE 2020: 1-9 - [c63]Tim Bell:
Teaching Teachers to Teach Computer Science - Unplugged or Plugged-in? ICER 2020: 1 - [c62]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:
The Cambridge Handbook of Computing Education Research Summarized in 75 minutes. SIGCSE 2020: 323-324 - [c61]Kashif Amanullah, Tim Bell:
Revisiting code smells in block based languages. WiPSCE 2020: 25:1-25:2
2010 – 2019
- 2019
- [c60]Kashif Amanullah, Tim Bell:
Evaluating the Use of Remixing in Scratch Projects Based on Repertoire, Lines of Code (LOC), and Elementary Patterns. FIE 2019: 1-8 - [c59]Kashif Amanullah, Tim Bell:
Analysis of Progression of Scratch Users based on their Use of Elementary Patterns. ICCSE 2019: 573-578 - 2018
- [j31]Tim Bell, Paul Tymann, Amiram Yehudai:
The Big Ideas in Computer Science for K-12 Curricula. Bull. EATCS 124 (2018) - [j30]Judith Bell, Tim Bell:
Integrating Computational Thinking with a Music Education Context. Informatics Educ. 17(2): 151-166 (2018) - [j29]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:
Tensions in specifying computing curricula for K-12: Towards a principled approach for objectives. it Inf. Technol. 60(2): 59-68 (2018) - [c58]Tim Bell, Jan Vahrenhold:
CS Unplugged - How Is It Used, and Does It Work? Adventures Between Lower Bounds and Higher Altitudes 2018: 497-521 - [c57]Kashif Amanullah, Tim Bell:
Analysing Students' Scratch Programs and Addressing Issues using Elementary Patterns. FIE 2018: 1-5 - [c56]Tim Bell:
What's the Big Idea with CS Education in K-12? SIGCSE 2018: 410 - [c55]Lori L. Pollock, James Atlas, Tim Bell, Tracy Henderson:
A Computer Science Study Abroad with Service Learning: Design and Reflections. SIGCSE 2018: 485-490 - 2017
- [j28]Mary Webb, Niki Davis, Tim Bell, Yaacov J. Katz, Nicholas Reynolds, Dianne P. Chambers, Maciej M. Syslo:
Computer science in K-12 school curricula of the 2lst century: Why, what and when? Educ. Inf. Technol. 22(2): 445-468 (2017) - [c54]Caitlin Duncan, Tim Bell, James Atlas:
What do the Teachers Think?: Introducing Computational Thinking in the Primary School Curriculum. ACE 2017: 65-74 - [c53]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:
Computer Science in the School Curriculum: Issues and Challenges. WCCE 2017: 421-431 - 2016
- [j27]Tim Bell:
Demystifying coding for schools - what are we actually trying to teach? Bull. EATCS 120 (2016) - [c52]Tim Bell, Caitlin Duncan, James Atlas:
Teacher Feedback on Delivering Computational Thinking in Primary School. WiPSCE 2016: 100-101 - 2015
- [c51]Tim Bell:
Surprising Computer Science. ISSEP 2015: 1-11 - [c50]David Thompson, Timothy C. Bell:
Virtually Unplugged: Rich Data Capture to Evaluate CS Pedagogy in 3D Virtual Worlds. LaTiCE 2015: 156-163 - [c49]Caitlin Duncan, Tim Bell:
A Pilot Computer Science and Programming Course for Primary School Students. WiPSCE 2015: 39-48 - 2014
- [j26]Tim Bell:
Establishing a nationwide CS curriculum in New Zealand high schools. Commun. ACM 57(2): 28-30 (2014) - [j25]Tim Bell, Peter Andreae, Anthony V. Robins:
A Case Study of the Introduction of Computer Science in NZ Schools. ACM Trans. Comput. Educ. 14(2): 10:1-10:31 (2014) - [j24]Tim Bell:
Ubiquity symposium: The science in computer science: unplugging computer science to find the science. Ubiquity 2014(March): 3:1-3:6 (2014) - [c48]Mohammed Algarni, Brent Martin, Tim Bell, Kourosh Neshatian:
Simple Arabic Stemmer. CIKM 2014: 1803-1806 - [c47]Sam Jarman, Tim Bell:
A game to teach network communication reliability problems and solutions. WiPSCE 2014: 43-49 - [c46]Caitlin Duncan, Tim Bell, Steve Tanimoto:
Should your 8-year-old learn coding? WiPSCE 2014: 60-69 - 2013
- [j23]Donald A. Adjeroh, Tim Bell, Amar Mukherjee:
Pattern Matching in Compressed Texts and Images. Found. Trends Signal Process. 6(2-3): 97-241 (2013) - [c45]David Thompson, Tim Bell, Peter Andreae, Anthony V. Robins:
The role of teachers in implementing curriculum changes. SIGCSE 2013: 245-250 - [c44]Tim Bell, Daniela Marghitu, Lynn Lambert, Paul Curzon:
Computer science unplugged, robotics, and outreach activities (abstract only). SIGCSE 2013: 758 - [c43]Ben Gibson, Tim Bell:
Evaluation of games for teaching computer science. WiPSCE 2013: 51-60 - [c42]Amitrajit Sarkar, Tim Bell:
Teaching black-box testing to high school students. WiPSCE 2013: 75-78 - [c41]David Thompson, Tim Bell:
Adoption of new computer science high school standards by New Zealand teachers. WiPSCE 2013: 87-90 - 2012
- [c40]Tim Bell, Frances A. Rosamond, Nancy Casey:
Computer Science Unplugged and Related Projects in Math and Computer Science Popularization. The Multivariate Algorithmic Revolution and Beyond 2012: 398-456 - [c39]Tim Bell:
Lessons in iOS Device Configuration Management. LISA 2012: 43-49 - [c38]Tim Bell, Peter Andreae, Anthony V. Robins:
Computer science in NZ high schools: the first year of the new standards. SIGCSE 2012: 343-348 - [c37]Tim Bell, Daniela Marghitu, Lynn Lambert:
Computer science unplugged, robotics, and outreach activities (abstract only). SIGCSE 2012: 657 - [c36]Tim Bell, Lynn Lambert, Daniela Marghitu:
CS unplugged, outreach and CS kinesthetic activities (abstract only). SIGCSE 2012: 676 - [c35]Tim Bell, Heidi Newton, Peter Andreae, Anthony V. Robins:
The introduction of computer science to NZ high schools: an analysis of student work. WiPSCE 2012: 5-15 - 2011
- [c34]Tim Bell, Paul Curzon, Quintin I. Cutts, Valentina Dagiene, Bruria Haberman:
Overcoming Obstacles to CS Education by Using Non-programming Outreach Programmes. ISSEP 2011: 71-81 - [c33]Tim Bell, Paul Curzon, Quintin I. Cutts, Valentina Dagiene, Bruria Haberman:
Introducing students to computer science with programmes that don't emphasise programming. ITiCSE 2011: 391 - [c32]Tim Bell, Bengt Aspvall:
Sorting algorithms as special cases of a priority queue sort. SIGCSE 2011: 123-128 - [c31]Tim Bell, Lynn Lambert:
Teaching computer science majors about teaching computer science. SIGCSE 2011: 541-546 - 2010
- [c30]Yu Su, Xiaofei Liao, Hai Jin, Tim Bell:
Data Hiding in Virtual Machine Disk Images. CIT 2010: 2278-2283 - [p3]Hai Jin, Shadi Ibrahim, Tim Bell, Wei Gao, Dachuan Huang, Song Wu:
Cloud Types and Services. Handbook of Cloud Computing 2010: 335-355 - [p2]Hai Jin, Shadi Ibrahim, Tim Bell, Li Qi, Haijun Cao, Song Wu, Xuanhua Shi:
Tools and Technologies for Building Clouds. Cloud Computing 2010: 3-20
2000 – 2009
- 2009
- [c29]Ruzelan Khalid, Wolfgang Kreutzer, Tim Bell:
Combining Simulation and Animation of Queueing Scenarios in a Flash-Based Discrete Event Simulator. UNISCON 2009: 240-251 - [c28]Paul Curzon, Peter W. McOwan, Quintin I. Cutts, Tim Bell:
Enthusing & inspiring with reusable kinaesthetic activities. ITiCSE 2009: 94-98 - [c27]David Bainbridge, Timothy C. Bell:
An ajax-based digital music stand for greenstone. JCDL 2009: 463-464 - [c26]Tomohiro Nishida, Susumu Kanemune, Yukio Idosaka, Mitaro Namiki, Tim Bell, Yasushi Kuno:
A CS unplugged design pattern. SIGCSE 2009: 231-235 - 2008
- [c25]SookKyoung Choi, Tim Bell, Soo Jin Jun, Won-Gyu Lee:
Designing offline computer science activities for the korean elementary school curriculum. ITiCSE 2008: 338 - [p1]Tim Bell, Giovanni M. Bianco:
Computing Pre-University: Primary Computing Education. Wiley Encyclopedia of Computer Science and Engineering 2008 - 2007
- [c24]Donald A. Adjeroh, Uma Kandaswamy, Nan Zhang, Amar Mukherjee, M. T. Brown, Tim Bell:
BWT-based efficient shape matching. SAC 2007: 1079-1085 - 2006
- [c23]Mohammad Obaid, Ramakrishnan Mukundan, Tim Bell:
Enhancement of Moment Based Painterly Rendering Using Connected Components. CGIV 2006: 378-383 - [c22]Carl Gutwin, Christopher Fedak, Mark Watson, Jeff Dyck, Tim Bell:
Improving network efficiency in real-time groupware with general message compression. CSCW 2006: 119-128 - [c21]David Bainbridge, Tim Bell:
Identifying music documents in a collection of images. ISMIR 2006: 47-52 - 2005
- [j22]Andrew E. Firth, Tim Bell, Amar Mukherjee, Donald A. Adjeroh:
A comparison of BWT approaches to string pattern matching. Softw. Pract. Exp. 35(13): 1217-1258 (2005) - [c20]Tim Bell, Annabel Church, John R. McPherson, David Bainbridge:
Page turning and Image Size in a Digital Music Stand. ICMC 2005 - [c19]Richard Lobb, Tim Bell, David Bainbridge:
Fast Capture of Sheet Music for an Agile Digital Music Library. ISMIR 2005: 145-152 - [c18]Tim Bell, David Blizzard, Richard D. Green, David Bainbridge:
Design of a Digital Music Stand. ISMIR 2005: 430-433 - 2003
- [j21]Tim Bell, Harold W. Thimbleby, Mike Fellows, Ian H. Witten, Neal Koblitz, Matthew Powell:
Explaining cryptographic systems. Comput. Educ. 40(3): 199-215 (2003) - [j20]David Bainbridge, Tim Bell:
A music notation construction engine for optical music recognition. Softw. Pract. Exp. 33(2): 173-200 (2003) - [c17]Nan Zhang, Amar Mukherjee, Donald A. Adjeroh, Tim Bell:
Approximate Pattern Matching Using the Burrows-Wheeler Transform. DCC 2003: 458 - 2002
- [b3]Tim Bell, Ian H. Witten, Michael R. Fellows:
Computer Science Unplugged - an enrichment and extension programme for primary-aged children. csunplugged.org 2002, pp. I-IV, 1-105 - [c16]Donald A. Adjeroh, Yong Zhang, Amar Mukherjee, Matt Powell, Tim Bell:
DNA Sequence Compression Using the Burrows-Wheeler Transform. CSB 2002: 303-313 - [c15]Tim Bell, Matt Powell, Amar Mukherjee, Donald A. Adjeroh:
Searching BWT Compressed Text with the Boyer-Moore Algorithm and Binary Search. DCC 2002: 112-121 - [c14]Donald A. Adjeroh, Tim Bell, Matt Powell, Nan Zhang, Amar Mukherjee:
Pattern Matching in BWT-Transformed Text. DCC 2002: 445 - 2001
- [j19]Andy Cockburn, Timothy C. Bell, Bruce J. McKenzie:
Death to the Office of the Nineties: An HCI Perspective on Some Problems in Modern Office Information Systems. J. Res. Pract. Inf. Technol. 33(1): 68-82 (2001) - [j18]David Bainbridge, Tim Bell:
The Challenge of Optical Music Recognition. Comput. Humanit. 35(2): 95-121 (2001) - [j17]Bruce J. McKenzie, Timothy C. Bell:
Compression of sparse matrices by blocked rice coding. IEEE Trans. Inf. Theory 47(3): 1223-1230 (2001) - 2000
- [c13]Tim Bell:
A Low-Cost High-Impact Computer Science Show for Family Audiences. ACSC 2000: 10-16 - [c12]Karen Lin, Tim Bell:
Integrating Paper and Digital Music Information Systems. ISMIR 2000
1990 – 1999
- 1999
- [b2]Ian H. Witten, Alistair Moffat, Timothy C. Bell:
Managing Gigabytes: Compressing and Indexing Documents and Images, Second Edition. Morgan Kaufmann 1999, ISBN 1-55860-570-3 - 1998
- [c11]Andy Cockburn, Tim Bell:
Extending HCI in the computer science curriculum. ACSE 1998: 113-120 - [c10]Timothy C. Bell, Bruce J. McKenzie:
Compression of Sparse Matrices by Arithmetic Coding. Data Compression Conference 1998: 23-32 - 1997
- [c9]Ross Arnold, Timothy C. Bell:
A Corpus for the Evaluation of Lossless Compression Algorithms. Data Compression Conference 1997: 201-210 - 1996
- [c8]Tim Bell:
An authentic task based computer literacy course. ACSE 1996: 295-301 - 1995
- [j16]Timothy C. Bell, Alistair Moffat, Ian H. Witten, Justin Zobel:
The MG Retrieval System: Compressing for Space and Speed. Commun. ACM 38(4): 41-42 (1995) - [j15]Alistair Moffat, Justin Zobel, Ian H. Witten, Timothy C. Bell:
The role of compression in document databases. SIGWEB Newsl. 4(2): 20-21 (1995) - [c7]Ian H. Witten, Sally Jo Cunningham, Mahendra Vallabh, Timothy C. Bell:
A New Zealand Digital Library for Computer Science Research. DL 1995 - 1994
- [b1]Ian H. Witten, Alistair Moffat, Timothy C. Bell:
Managing Gigabytes: Compressing and Indexing Documents and Images. Van Nostrand Reinhold 1994, ISBN 0-442-01863-0 - [j14]Ian H. Witten, Timothy C. Bell, Alistair Moffat, Craig G. Nevill-Manning, Tony C. Smith, Harold W. Thimbleby:
Semantic and Generative Models for Lossy Text Compression. Comput. J. 37(2): 83-87 (1994) - [j13]Alistair Moffat, Neil Sharman, Ian H. Witten, Timothy C. Bell:
An Empirical Evaluation of Coding Methods for Multi-symbol Alphabets. Inf. Process. Manag. 30(6): 791-804 (1994) - [j12]Timothy C. Bell, Ian H. Witten:
The Relationship between Greedy Parsing and Symbolwise Text Compression. J. ACM 41(4): 708-724 (1994) - [j11]Ian H. Witten, Timothy C. Bell, Hugh Emberson, Stuart Inglis, Alistair Moffat:
Textual image compression: two-stage lossy/lossless encoding of textual images. Proc. IEEE 82(6): 878-888 (1994) - [c6]Peter C. Gutmann, Timothy C. Bell:
A Hybrid Approach to Text Compression. Data Compression Conference 1994: 225-233 - [c5]Ian H. Witten, Alistair Moffat, Timothy C. Bell:
Compression and Full-Text Indexing for Digital Libraries. DL 1994: 181-201 - 1993
- [j10]Timothy C. Bell, Alistair Moffat, Craig G. Nevill-Manning, Ian H. Witten, Justin Zobel:
Data Compression in Full-Text Retrieval Systems. J. Am. Soc. Inf. Sci. 44(9): 508-531 (1993) - [j9]Timothy C. Bell, David Kulp:
Longest-match String Searching for Ziv-Lempel Compression. Softw. Pract. Exp. 23(7): 757-771 (1993) - [c4]Alistair Moffat, Neil Sharman, Ian H. Witten, Timothy C. Bell:
An Empirical Evaluation of Coding Techniques for Multi-Symbol Alphabets. Data Compression Conference 1993: 108-117 - [c3]Ian H. Witten, Timothy C. Bell:
Getting research students started: a tale of two courses. SIGCSE 1993: 165-169 - 1992
- [j8]Craig G. Nevill-Manning, Timothy C. Bell:
Compression of Parallel Texts. Inf. Process. Manag. 28(6): 781-794 (1992) - [c2]Ian H. Witten, Timothy C. Bell, M. E. Harrison, Mark L. James, Alistair Moffat:
Textual Image Compression. Data Compression Conference 1992: 42-51 - 1991
- [j7]Ian H. Witten, Timothy C. Bell, Craig G. Nevill:
Indexing and compressing full-text databases for CD-ROM. J. Inf. Sci. 17(5): 265-271 (1991) - [j6]Ian H. Witten, Timothy C. Bell:
The zero-frequency problem: Estimating the probabilities of novel events in adaptive text compression. IEEE Trans. Inf. Theory 37(4): 1085-1094 (1991) - [c1]Ian H. Witten, Timothy C. Bell, Craig G. Nevill-Manning:
Models for Compression in Full-Text Retrieval Systems. Data Compression Conference 1991: 23-32 - 1990
- [j5]Ian H. Witten, Timothy C. Bell:
Source Models for Natural Language Text. Int. J. Man Mach. Stud. 32(5): 545-579 (1990) - [j4]Bruce J. McKenzie, R. Harries, Timothy C. Bell:
Selecting a Hashing Algorithm. Softw. Pract. Exp. 20(2): 209-224 (1990)
1980 – 1989
- 1989
- [j3]Timothy C. Bell, Alistair Moffat:
A Note on the DMC Data Compression Scheme. Comput. J. 32(1): 16-20 (1989) - [j2]Timothy C. Bell, Ian H. Witten, John G. Cleary:
Modeling for Text Compression. ACM Comput. Surv. 21(4): 557-591 (1989) - 1986
- [j1]Timothy C. Bell:
Better OPM/L Text Compression. IEEE Trans. Commun. 34(12): 1176-1182 (1986)
Coauthor Index
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