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David Pritchard
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Books and Theses
- 2009
- [b1]David Pritchard:
Linear Programming Tools and Approximation Algorithms for Combinatorial Optimization. University of Waterloo, Ontario, Canada, 2009
Journal Articles
- 2021
- [j21]Elizabeth Lewis, David Pritchard, Roberto Villalobos-Herrera, Stephen Blenkinsop, Fergus McClean, Selma Guerreiro, Udo Schneider, Andreas Becker, Peter Finger, Anja Meyer-Christoffer, Elke Rustemeier, Hayley J. Fowler:
Quality control of a global hourly rainfall dataset. Environ. Model. Softw. 144: 105169 (2021) - 2020
- [j20]David Pritchard, Yufeng Liu:
Composite quantile-based classifiers. Stat. Anal. Data Min. 13(4): 337-353 (2020) - [j19]Jiayin Lin, Geng Sun, Tingru Cui, Jun Shen, Dongming Xu, Ghassan Beydoun, Ping Yu, David Pritchard, Li Li, Shiping Chen:
From ideal to reality: segmentation, annotation, and recommendation, the vital trajectory of intelligent micro learning. World Wide Web 23(3): 1747-1767 (2020) - 2016
- [j18]Marija Djokic-Petrovic, David Pritchard, Milos R. Ivanovic, Vladimir M. Cvjetkovic:
IMI Python: Upgraded CS Circles web-based Python course. Comput. Appl. Eng. Educ. 24(3): 464-480 (2016) - 2015
- [j17]Marco Di Summa, David Pritchard, Laura Sanità:
Finding the closest ultrametric. Discret. Appl. Math. 180: 70-80 (2015) - 2014
- [j16]Jochen Könemann, Ojas Parekh, David Pritchard:
Multicommodity Flow in Trees: Packing via Covering and Iterated Relaxation. Algorithmica 68(3): 776-804 (2014) - [j15]András Frank, Tamás Király, Júlia Pap, David Pritchard:
Characterizing and recognizing generalized polymatroids. Math. Program. 146(1-2): 245-273 (2014) - 2013
- [j14]Béla Bollobás, David Pritchard, Thomas Rothvoß, Alex D. Scott:
Cover-Decomposition and Polychromatic Numbers. SIAM J. Discret. Math. 27(1): 240-256 (2013) - [j13]Deeparnab Chakrabarty, Jochen Könemann, David Pritchard:
Hypergraphic LP Relaxations for Steiner Trees. SIAM J. Discret. Math. 27(1): 507-533 (2013) - [j12]Christina Boucher, Gad M. Landau, Avivit Levy, David Pritchard, Oren Weimann:
On approximating string selection problems with outliers. Theor. Comput. Sci. 498: 107-114 (2013) - 2011
- [j11]David Pritchard, Deeparnab Chakrabarty:
Approximability of Sparse Integer Programs. Algorithmica 61(1): 75-93 (2011) - [j10]Radoslav Fulek, Filip Moric, David Pritchard:
Diameter bounds for planar graphs. Discret. Math. 311(5): 327-335 (2011) - [j9]Filip Moric, David Pritchard:
Counting large distances in convex polygons: a computational approach. Electron. Notes Discret. Math. 38: 731-736 (2011) - [j8]Jochen Könemann, David Pritchard, Kunlun Tan:
A partition-based relaxation for Steiner trees. Math. Program. 127(2): 345-370 (2011) - [j7]David Pritchard, Ramakrishna Thurimella:
Fast computation of small cuts via cycle space sampling. ACM Trans. Algorithms 7(4): 46:1-46:30 (2011) - 2010
- [j6]Deeparnab Chakrabarty, Jochen Könemann, David Pritchard:
Integrality gap of the hypergraphic relaxation of Steiner trees: A short proof of a 1.55 upper bound. Oper. Res. Lett. 38(6): 567-570 (2010) - [j5]David Pritchard:
Decisions and elections: explaining the unexpected author: Donald G. Saari publisher: cambridge university press, 2001 isbn 0-521-80816-2. SIGACT News 41(3): 30-33 (2010) - 2008
- [j4]David Pritchard:
Working Papers, Open Access, and Cyber-infrastructure in Classical Studies. Lit. Linguistic Comput. 23(2): 149-162 (2008) - 2004
- [j3]Mircea Gh. Negoita, David Pritchard:
Using a virtual student model for testing intelligent tutoring systems. Interact. Technol. Smart Educ. 1(3): 195-204 (2004) - 2003
- [j2]David Pritchard, Wolfgang Heidrich:
Cloth Motion Capture. Comput. Graph. Forum 22(3): 263-272 (2003) - 1991
- [j1]David Pritchard:
Editorial. Concurr. Pract. Exp. 3(4): 247-248 (1991)
Conference and Workshop Papers
- 2021
- [c24]Jiayin Lin, Geng Sun, Jun Shen, David Pritchard, Ping Yu, Tingru Cui, Li Li, Ghassan Beydoun:
MOOC Student Dropout Rate Prediction via Separating and Conquering Micro and Macro Information. ICONIP (6) 2021: 459-467 - 2020
- [c23]Jiayin Lin, Geng Sun, Jun Shen, David Pritchard, Tingru Cui, Dongming Xu, Li Li, Ghassan Beydoun, Shiping Chen:
Deep-Cross-Attention Recommendation Model for Knowledge Sharing Micro Learning Service. AIED (2) 2020: 168-173 - [c22]Jiayin Lin, Zhexuan Zhou, Geng Sun, Jun Shen, David Pritchard, Tingru Cui, Dongming Xu, Li Li, Ghassan Beydoun:
Deep Sequence Labelling Model for Information Extraction in Micro Learning Service. IJCNN 2020: 1-10 - [c21]Jiayin Lin, Geng Sun, Jun Shen, Tingru Cui, David Pritchard, Dongming Xu, Li Li, Wei Wei, Ghassan Beydoun, Shiping Chen:
Attention-Based High-Order Feature Interactions to Enhance the Recommender System for Web-Based Knowledge-Sharing Service. WISE (1) 2020: 461-473 - 2017
- [c20]Han Wan, Jun Ding, Xiaopeng Gao, David Pritchard:
Dropout Prediction in MOOCs using Learners' Study Habits Features. EDM 2017 - 2015
- [c19]David Pritchard:
Frequency distribution of error messages. PLATEAU@SPLASH 2015: 1-8 - [c18]David Pritchard, Sandy Graham, Troy Vasiga:
The State of CS Circles: Open Source and Outreach with an Introductory Python Website (Abstract Only). SIGCSE 2015: 688 - 2014
- [c17]Ojas Parekh, David Pritchard:
Generalized Hypergraph Matching via Iterated Packing and Local Ratio. WAOA 2014: 207-223 - 2013
- [c16]David Pritchard, Troy Vasiga:
CS circles: an in-browser python course for beginners. SIGCSE 2013: 591-596 - 2012
- [c15]Christina Boucher, Gad M. Landau, Avivit Levy, David Pritchard, Oren Weimann:
On Approximating String Selection Problems with Outliers. CPM 2012: 427-438 - 2011
- [c14]Béla Bollobás, David Pritchard, Thomas Rothvoß, Alex D. Scott:
Cover-Decomposition and Polychromatic Numbers. ESA 2011: 799-810 - 2010
- [c13]Deeparnab Chakrabarty, Jochen Könemann, David Pritchard:
Hypergraphic LP Relaxations for Steiner Trees. IPCO 2010: 383-396 - [c12]David Pritchard:
k-Edge-Connectivity: Approximation and LP Relaxation. WAOA 2010: 225-236 - 2009
- [c11]David Pritchard:
Approximability of Sparse Integer Programs. ESA 2009: 83-94 - 2008
- [c10]David Pritchard:
Fast Distributed Computation of Cuts Via Random Circulations. ICALP (1) 2008: 145-160 - [c9]Jochen Könemann, Ojas Parekh, David Pritchard:
Max-Weight Integral Multicommodity Flow in Spiders and High-Capacity Trees. WAOA 2008: 1-14 - 2006
- [c8]David Pritchard, Santosh S. Vempala:
Symmetric network computation. SPAA 2006: 261-270 - 2004
- [c7]David Pritchard, Mircea Gh. Negoita:
A Fuzzy-Ga Hybrid Technique for Optimization of Teaching Sequences Presented in ITSs. Fuzzy Days 2004: 311-316 - [c6]Mircea Gh. Negoita, David Pritchard:
A "virtual student" leads to the possibility of optimiser agents in an ITS. ICMLA 2004: 403-409 - [c5]Mircea Gh. Negoita, David Pritchard:
Developing a "Virtual Student" Model to Test the Tutor and Optimizer Agents in an ITS. KES 2004: 240-252 - [c4]Mircea Gh. Negoita, David Pritchard:
An Optimiser Agent that Empowers an ITS System to "on-the-fly" Modify Its Teaching Strategies. KES 2004: 914-921 - 2003
- [c3]Mircea Gh. Negoita, David Pritchard:
Testing Intelligent Tutoring System. ICMLA 2003: 98-104 - [c2]Mircea Gh. Negoita, David Pritchard:
Some Test Problems Regarding Intelligent Tutoring Systems. KES 2003: 986-992 - [c1]David Pritchard, Wolfgang Heidrich:
Cloth motion capture. SIGGRAPH 2003
Informal and Other Publications
- 2016
- [i17]Ojas Parekh, David Pritchard:
Generalized Hypergraph Matching via Iterated Packing and Local Ratio. CoRR abs/1604.00322 (2016) - 2015
- [i16]David Pritchard:
Frequency Distribution of Error Messages. CoRR abs/1509.07238 (2015) - 2012
- [i15]Christina Boucher, Gad M. Landau, Avivit Levy, David Pritchard, Oren Weimann:
On Approximating String Selection Problems with Outliers. CoRR abs/1202.2820 (2012) - [i14]David Pritchard, Troy Vasiga:
CS Circles: An In-Browser Python Course for Beginners. CoRR abs/1209.2166 (2012) - 2011
- [i13]Filip Moric, David Pritchard:
Counting large distances in convex polygons. CoRR abs/1103.0412 (2011) - 2010
- [i12]Prahladh Harsha, Moses Charikar, Matthew Andrews, Sanjeev Arora, Subhash Khot, Dana Moshkovitz, Lisa Zhang, Ashkan Aazami, Dev Desai, Igor Gorodezky, Geetha Jagannathan, Alexander S. Kulikov, Darakhshan J. Mir, Alantha Newman, Aleksandar Nikolov, David Pritchard, Gwen Spencer:
Limits of Approximation Algorithms: PCPs and Unique Games (DIMACS Tutorial Lecture Notes). CoRR abs/1002.3864 (2010) - [i11]David Pritchard:
k-Edge-Connectivity: Approximation and LP Relaxation. CoRR abs/1004.1917 (2010) - [i10]David Pritchard:
An LP with Integrality Gap 1+epsilon for Multidimensional Knapsack. CoRR abs/1005.3324 (2010) - [i9]Deeparnab Chakrabarty, Jochen Könemann, David Pritchard:
Integrality Gap of the Hypergraphic Relaxation of Steiner Trees: a short proof of a 1.55 upper bound. CoRR abs/1006.2249 (2010) - [i8]David Pritchard, Thomas Rothvoß:
Edge-Colouring Hypergraphs Properly (Covering with Matchings) or Polychromatically (Packing Covers). CoRR abs/1009.6144 (2010) - 2009
- [i7]David Pritchard:
Approximability of Sparse Integer Programs. CoRR abs/0904.0859 (2009) - [i6]Deeparnab Chakrabarty, Jochen Könemann, David Pritchard:
Hypergraphic LP Relaxations for Steiner Trees. CoRR abs/0910.0281 (2009) - 2007
- [i5]David Pritchard:
Efficient Divide-and-Conquer Simulations Of Symmetric FSAs. CoRR abs/0708.0580 (2007) - [i4]Jochen Könemann, David Pritchard, Kunlun Tan:
A Partition-Based Relaxation For Steiner Trees. CoRR abs/0712.3568 (2007) - [i3]David Pritchard:
How to Use Random Circulations to Find Small Cuts. CoRR abs/cs/0702113 (2007) - [i2]David Pritchard:
Nearest Neighbor Network Traversal. CoRR abs/cs/0702114 (2007) - 2006
- [i1]David Pritchard:
An Optimal Distributed Edge-Biconnectivity Algorithm. CoRR abs/cs/0602013 (2006)
Coauthor Index
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