David Pritchard

ORCID

Publication Activity (10 Years)

Years Active: 1991-2021
Publications (10 Years): 10

Top Venues

CoRR

SIAM J. Discret. Math.

SIGCSE

PLATEAU@SPLASH

University of Waterloo, Ontario, Canada (PHD)

Education History

University of Waterloo, Ontario, Canada

PHD

Publications

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)
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 (2021)
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)
David Pritchard, Yufeng Liu
Composite quantile-based classifiers. Stat. Anal. Data Min. 13 (4) (2020)
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) (2020)
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)
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)
Han Wan, Jun Ding, Xiaopeng Gao, David Pritchard
Dropout Prediction in MOOCs using Learners' Study Habits Features. EDM (2017)
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) (2016)
Ojas Parekh, David Pritchard
Generalized Hypergraph Matching via Iterated Packing and Local Ratio. CoRR (2016)
Marco Di Summa, David Pritchard, Laura Sanità
Finding the closest ultrametric. Discret. Appl. Math. 180 (2015)
David Pritchard
Frequency Distribution of Error Messages. CoRR (2015)
David Pritchard
Frequency distribution of error messages. PLATEAU@SPLASH (2015)
David Pritchard, Sandy Graham, Troy Vasiga
The State of CS Circles: Open Source and Outreach with an Introductory Python Website (Abstract Only). SIGCSE (2015)
András Frank, Tamás Király, Júlia Pap, David Pritchard
Characterizing and recognizing generalized polymatroids. Math. Program. 146 (1-2) (2014)
Ojas Parekh, David Pritchard
Generalized Hypergraph Matching via Iterated Packing and Local Ratio. WAOA (2014)
Jochen Könemann, Ojas Parekh, David Pritchard
Multicommodity Flow in Trees: Packing via Covering and Iterated Relaxation. Algorithmica 68 (3) (2014)
Christina Boucher, Gad M. Landau, Avivit Levy, David Pritchard, Oren Weimann
On approximating string selection problems with outliers. Theor. Comput. Sci. 498 (2013)
Deeparnab Chakrabarty, Jochen Könemann, David Pritchard
Hypergraphic LP Relaxations for Steiner Trees. SIAM J. Discret. Math. 27 (1) (2013)
David Pritchard, Troy Vasiga
CS circles: an in-browser python course for beginners. SIGCSE (2013)
Béla Bollobás, David Pritchard, Thomas Rothvoß, Alex D. Scott
Cover-Decomposition and Polychromatic Numbers. SIAM J. Discret. Math. 27 (1) (2013)
Christina Boucher, Gad M. Landau, Avivit Levy, David Pritchard, Oren Weimann
On Approximating String Selection Problems with Outliers. CPM (2012)
Christina Boucher, Gad M. Landau, Avivit Levy, David Pritchard, Oren Weimann
On Approximating String Selection Problems with Outliers CoRR (2012)
David Pritchard, Troy Vasiga
CS Circles: An In-Browser Python Course for Beginners CoRR (2012)
David Pritchard, Ramakrishna Thurimella
Fast computation of small cuts via cycle space sampling. ACM Trans. Algorithms 7 (4) (2011)
Radoslav Fulek, Filip Moric, David Pritchard
Diameter bounds for planar graphs. Discret. Math. 311 (5) (2011)
Filip Moric, David Pritchard
Counting large distances in convex polygons CoRR (2011)
Filip Moric, David Pritchard
Counting large distances in convex polygons: a computational approach. Electron. Notes Discret. Math. 38 (2011)
Béla Bollobás, David Pritchard, Thomas Rothvoß, Alex D. Scott
Cover-Decomposition and Polychromatic Numbers. ESA (2011)
Jochen Könemann, David Pritchard, Kunlun Tan
A partition-based relaxation for Steiner trees. Math. Program. 127 (2) (2011)
David Pritchard, Deeparnab Chakrabarty
Approximability of Sparse Integer Programs. Algorithmica 61 (1) (2011)
David Pritchard
-Edge-Connectivity: Approximation and LP Relaxation. WAOA (2010)
David Pritchard, Thomas Rothvoß
Edge-Colouring Hypergraphs Properly (Covering with Matchings) or Polychromatically (Packing Covers) CoRR (2010)
Deeparnab Chakrabarty, Jochen Könemann, David Pritchard
Hypergraphic LP Relaxations for Steiner Trees. IPCO (2010)
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) (2010)
David Pritchard
An LP with Integrality Gap 1+epsilon for Multidimensional Knapsack CoRR (2010)
David Pritchard
k-Edge-Connectivity: Approximation and LP Relaxation CoRR (2010)
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 (2010)
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 (2010)
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) (2010)
David Pritchard
Approximability of Sparse Integer Programs CoRR (2009)
Deeparnab Chakrabarty, Jochen Könemann, David Pritchard
Hypergraphic LP Relaxations for Steiner Trees CoRR (2009)
David Pritchard
Approximability of Sparse Integer Programs. ESA (2009)
David Pritchard
Working Papers, Open Access, and Cyber-infrastructure in Classical Studies. Lit. Linguistic Comput. 23 (2) (2008)
David Pritchard
Fast Distributed Computation of Cuts Via Random Circulations. ICALP (1) (2008)
Jochen Könemann, Ojas Parekh, David Pritchard
Max-Weight Integral Multicommodity Flow in Spiders and High-Capacity Trees. WAOA (2008)
David Pritchard
How to Use Random Circulations to Find Small Cuts CoRR (2007)
David Pritchard
Efficient Divide-and-Conquer Simulations Of Symmetric FSAs CoRR (2007)
David Pritchard
Nearest Neighbor Network Traversal CoRR (2007)
Jochen Könemann, David Pritchard, Kunlun Tan
A Partition-Based Relaxation For Steiner Trees CoRR (2007)
David Pritchard
An Optimal Distributed Edge-Biconnectivity Algorithm CoRR (2006)
David Pritchard, Santosh S. Vempala
Symmetric network computation. SPAA (2006)
Mircea Gh. Negoita, David Pritchard
Developing a "Virtual Student" Model to Test the Tutor and Optimizer Agents in an ITS. KES (2004)
David Pritchard, Mircea Gh. Negoita
A Fuzzy-Ga Hybrid Technique for Optimization of Teaching Sequences Presented in ITSs. Fuzzy Days (2004)
Mircea Gh. Negoita, David Pritchard
An Optimiser Agent that Empowers an ITS System to "on-the-fly" Modify Its Teaching Strategies. KES (2004)
Mircea Gh. Negoita, David Pritchard
A "virtual student" leads to the possibility of optimiser agents in an ITS. ICMLA (2004)
Mircea Gh. Negoita, David Pritchard
Using a virtual student model for testing intelligent tutoring systems. Interact. Technol. Smart Educ. 1 (3) (2004)
David Pritchard, Wolfgang Heidrich
Cloth Motion Capture. Comput. Graph. Forum 22 (3) (2003)
Mircea Gh. Negoita, David Pritchard
Testing Intelligent Tutoring System. ICMLA (2003)
Mircea Gh. Negoita, David Pritchard
Some Test Problems Regarding Intelligent Tutoring Systems. KES (2003)
David Pritchard, Wolfgang Heidrich
Cloth motion capture. SIGGRAPH (2003)
David Pritchard
Editorial. Concurr. Pract. Exp. 3 (4) (1991)

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Publication Activity (10 Years)

Top Topics

Top Venues

David Pritchard