2014

Mehmet Ersin Yumer, Levent Burak Kara. (2014). Co-Constrained Handles for Deformation in Shape Collections. Conditionally Accepted. ACM, Transactions on Graphics (TOG), Proceedings of SIGGRAPH Asia 2014.

[pdf] [bibtex] [project page]

Matthew Eicholtz, Levent Burak Kara. (2014). Intermodal Image-Based Recognition of Planar Kinematic Mechanisms. Journal of Visual Languages and Computing. Also in 2014 International Conference on Distributed Multimedia Systems Workshop on Visual Languages and Computing (VLC). August 27-29, 2014. Pittsburgh, PA.

[pdf] [bibtex] [project page]

Paul S. Steif, Matthew Eicholtz, Levent Burak Kara. (2014). Computer Tutors Can Reduce Student Errors and Promote Solution Efficiency for Complex Engineering Problems. Journal of Visual Languages and Computing. Also in 2014 International Conference on Distributed Multimedia Systems Workshop on Distance Education Technology (DET). August 27-29, 2014. Pittsburgh, PA.

[pdf] [bibtex] [project page]

Erva Ulu, Rusheng Zhang, Mehmet Ersin Yumer, Levent Burak Kara. (2014). A Data-Driven Investigation and Estimation of Optimal Topologies Under Variable Loading Configurations. Computational Modeling of Objects Presented in Images: Fundamentals, Methods, and Applications (CompIMAGE), Aug. 2014, Pittsburgh, PA.

[pdf] [bibtex] [project page]

Erhan Batuhan Arisoy, Gunay Orbay and Levent Burak Kara. (2014). Predictive Modeling For 2D Form Design. Short paper, Computational Modeling of Objects Presented in Images: Fundamentals, Methods, and Applications (CompIMAGE), Aug. 2014, Pittsburgh, PA.

[pdf] [bibtex] [project page]

Erhan Batuhan Arisoy, Levent Burak Kara. (2014). Topology Preserving Digitization of Physical Prototypes Using Deformable Subdivision Models. ASME International Design Engineering Technical Conferences/DAC., 2014, Buffalo, N.Y.

[pdf] [bibtex] [project page]

Matthew Eicholtz, Levent Burak Kara, Jason Lohn. (2014). Recognizing Planar Kinematic Mechanisms from a Single Image Using Evolutionary Computation. GECCO 2014. July 12-16, 2014. Vancouver, BC, Canada.

[pdf] [bibtex] [project page]

Gunay Orbay, Levent Burak Kara. (2014). Pencil-Like Sketch Rendering of 3D Scenes Using Trajectory Planning and Dynamic Tracking. Journal of Visual Languages and Computing.

Paul S. Steif, Luoting Fu, Levent Burak Kara. (2014). The Potential for Computer Tutors to Assist Students Learning to Solve Complex Problems. ASEE Educational Research and Methods. June 15-18, 2014. Indianapolis, Indiana.

Paul S. Steif, Luoting Fu, Levent Burak Kara. (2014). Development of a cognitive tutor for learning truss analysis. ASEE Mechanics. June 15-18, 2014. Indianapolis, Indiana.

Luoting Fu. Levent Burak Kara. Kenji Shimada. (2014). Modeling Flow Features with User-Guided Streamline Parameterization. Computer-Aided Design, 46(0), 263-268. Also, proceedings of SIAM Conference on Geometric and Physical Modeling (GD/SPM13). November 11-14, 2013. Denver, Colorado.

[pdf] [online publisher version] [bibtex] 

2013

Luoting Fu. (2013). Geometric Modeling for Industrial Design with User-Prescribed Constraints. PhD thesis. Carnegie Mellon University, USA.

[pdf] [bibtex] 

Gunay Orbay. (2013). Computationally Enhanced Product Form Design Through Sketch-Based Interactions. PhD thesis. Carnegie Mellon University, USA.

[pdf] [bibtex] 

Gunay Orbay, Levent Burak Kara. (2013). Pencil-Like Sketch Rendering of 3D Scenes Using Trajectory Planning and Dynamic Tracking. International Workshop on Visual Languages and Computing. Seafront, United Kingdom, August 8 to 10, 2013.

[pdf] [bibtex] 

Gunay Orbay, Luoting Fu, Levent Burak Kara. (2013). Shape Spirit: Deciphering Form Characteristics and Emotional Associations Through Geometric Abstraction. ASME International Design Engineering Technical Conferences/DTM. Portland, Oregon.

[pdf] [bibtex] 

Paul S. Steif, Luoting Fu, Levent Burak Kara. (2013). Development of a cognitive tutor for learning truss analysis. Technical Report, Carnegie Mellon University, Pittsburgh, PA, USA, 2013.

[pdf] [bibtex] [video] 

2012

Mehmet Ersin Yumer, Levent Burak Kara. (2012). Co-Abstraction of Shape Collections. ACM, Transactions on Graphics (TOG) 31(6), Proceedings of SIGGRAPH Asia 2012.

[pdf] [bibtex] [project page]

Gunay Orbay, Levent Burak Kara. (2012). Sketch-Based Surface Design Using Malleable Curve Networks. Elsevier, Computers & Graphics, Volume 36 (8), Pages 916-929.

[pdf] [bibtex] [project page]

Gunay Orbay, Mehmet Ersin Yumer, Levent Burak Kara. (2012). Sketch-Based Aesthetic Product Form Exploration from Existing Images Using Piecewise Clothoid Curves. Journal of Visual Languages and Computing, Volume 23, Pages 327-339.

[pdf] [bibtex]

Gunay Orbay, Levent Burak Kara. (2012). Shape Design From Exemplar Sketches Using Graph-Based Sketch Analysis. ASME Journal of Mechanical Design, Volume 134 (11).

[pdf] [bibtex] [project page]

Erhan Batuhan Arisoy, Gunay Orbay, Levent Burak Kara. (2012). Free Form Surface Skinning of 3D Curve Clouds for Conceptual Shape Design. ASME Journal of Computing and Information Science In Engineering, Volume 12, Issue 3.

[pdf] [bibtex] [project page]

Mehmet Ersin Yumer, Levent Burak Kara, 2012, Surface Creation on Unstructured Point Sets Using Neural Networks. Computer Aided Design, Volume 44, Issue 7, pp. 644-656.

[pdf] [bibtex] [project page]

Gunay Orbay, Mehmet Ersin Yumer, Levent Burak Kara, 2012, Sketch-based Shape Exploration Using Multi-Scale Freeform Surface Editing. AI-EDAM, Special Issue on Sketching and Pen-based Design Interaction, Volume 26, Issue 3, Pages 337-350.

[pdf] [bibtex] [project page]

Mark Fuge, Mehmet Ersin Yumer, Gunay Orbay, Levent Burak Kara. (2012). Conceptual Design and Modification of Freeform Surfaces Using Dual Shape Representations in Augmented Reality Environments. Computer-Aided Design, Volume 44, Issue 10, Pages 1020–1032.

[pdf] [bibtex]

Luoting Fu, Levent Burak Kara, Kenji Shimada, 2012, Feature, Design Intention and Constraint Preservation for Direct Modeling of 3D Freeform Surfaces. 3D Research, Volume 3, Issue 2.

[pdf] [bibtex]

2011

Gunay Orbay, Levent Burak Kara, 2011, Sketch-Based Modeling of Smooth Surfaces using Adaptive Curve Networks. Eurographics Symposium on Sketch-Based Interfaces and Modeling (SBIM). Vancouver, Canada.

[pdf] [bibtex]

Levent Burak Kara, Kenji Shimada. (2011). The Creation and Modification of 3D Models Using Sketches and Curves. Sketch-based Interfaces and Modeling, pp 341-367, 2011, Springer London.

[pdf] [bibtex]

Luoting Fu, Levent Burak Kara. (2011). Neural Network-based Symbol Recognition using a Few Labeled Samples. Computers & Graphics, Elsevier, Volume 35, Issue 5, Pages 955-966.

[pdf] [bibtex]

Gunay Orbay, Levent Burak Kara. (2011). Beautification of Design Sketches Using Trainable Stroke Clustering and Curve Fitting. IEEE Transactions on Visualization and Computer Graphics, Volume 17, Number 5, May 2011, Pages 694-708.

[pdf] [bibtex] [project page]

Gunay Orbay, Mehmet Ersin Yumer, Levent Burak Kara. (2011). Sketch-Based Image Editing Using Clothoid Curves. International Workshop on Visual Languages and Computing, as part of International Conference on Distributed Multimedia Systems. Florence, Italy.

[pdf] [bibtex]

Luoting Fu, Levent Burak Kara. (2011). From engineering diagrams to engineering models: Visual recognition and applications. Computer-Aided Design, Volume 43, Issue 3, Pages 278-292.

[pdf] [bibtex] [project page]

Mehmet Ersin Yumer, Levent Burak Kara. (2011). Conceptual Design of Freeform Surfaces from Unstructured Point Sets Using Neural Network Regression. ASME International Design Engineering Technical Conferences/DAC. Washington D.C.

[pdf] [bibtex]

Erhan Batuhan Arisoy, Gunay Orbay, Levent Burak Kara. (2011). Approximate Surfacing of Curve Clouds for Conceptual Shape Creation and Evaluation. ASME International Design Engineering Technical Conferences/DAC. Washington D.C.

[pdf] [bibtex]

Onur Dur, Sinan Tolga Coskun, David Frakes, Levent Burak Kara, Kerem Pekkan. (2011). Computer-Aided Patient-Specific Coronary Artery Graft Design Improvements Using CFD Coupled Shape Optimizer. Cardiovascular Engineering and Technology, Volume 2, Number 1, Pages 35-47.

[pdf] [bibtex]

2010

Luoting Fu, Mark Fuge, Levent Burak Kara. (2010). Engineering Sketch Recognition: Findings from Recent Bio-inspired and Cognitive Studies at VDEL. 28th ACM Conference on Human Factors in Computing Systems (CHI), Workshop on Designing Sketch Recognition Interfaces. Atlanta, April 2010.

[pdf] [bibtex]

Paul Steif, Jamie M Lobue, Levent Burak Kara, Anne L Fay. (2010). Improving Problem Solving Performance by Inducing Talk about Salient Problem Features. ASEE Journal of Engineering Education, Volume 99, Issue 2, Pages 135-142.

[pdf] [bibtex]

2009

Mark Fuge, Levent Burak Kara. (2009). A Testing Method and Cognitive Model of Human Diagram Understanding for Automating Design Sketch Recognition. ASME International Design Engineering Technical Conferences/DTM. San Diego, September 2009.

[pdf] [bibtex]

Luoting Fu, Levent Burak Kara. (2009). Recognizing Network-Like Hand-Drawn Sketches – A Convolutional Neural Network Approach. ASME International Design Engineering Technical Conferences/DAC. San Diego, September 2009.

[pdf] [bibtex]

Gunay Orbay, Levent Burak Kara. (2009). Learning Geometric Design Knowledge from Conceptual Sketches and Its Utilization in Shape Creation and Optimization. ASME International Design Engineering Technical Conferences/DAC. San Diego, September 2009.

[pdf] [bibtex]

2008

Levent Burak Kara, Kenji Shimada. (2008). Supporting Early Styling Design of Automobiles Using Sketch-Based 3D Shape Construction. Computer-Aided Design & Applications, Volume 5, Issue 6, Pages 867-876. Also CAD’08 conference.

[pdf] [bibtex]

Levent Burak Kara, Leslie Gennari, Thomas F Stahovich. (2008). A Sketch-Based Tool for Analyzing Vibratory Mechanical Systems. Journal of Mechanical Design, Volume 130, Issue 10.

[pdf] [bibtex]

2007

Levent Burak Kara, Kenji Shimada, Sarah D Marmalefsky. (2007). An Evaluation of User Experience with a Sketch-based 3D Modeling System. Computers & Graphics. Volume 31, Issue 4, Pages 580-597.

[pdf] [bibtex]

WeeSan Lee, Levent Burak Kara, Thomas F Stahovich. (2007). An Efficient Graph-Based Recognizer for Hand-Drawn Symbols. Computers & Graphics. Volume 31, Issue 4, Pages 554-567.

[pdf] [bibtex]

Levent Burak Kara, Kenji Shimada. (2007). Sketch-Based 3D Shape Creation for Industrial Styling Design. IEEE Computer Graphics and Applications, Volume 27, Number 1, Pages 60-71.

[pdf] [bibtex]

Paul S. Steif, J. Lobue, A. L. Fay, Levent Burak Kara, and S.E. Spencer. Inducing Students To Contemplate Concept-Eliciting Questions And The Effect On Problem Solving Performance, Proceedings of the 2007 American Society for Engineering Education Annual Conference and Exposition, Honolulu, HI, June 24-27, 2007.

[pdf] [bibtex]

2006

Paul S. Steif, Anne L. Fay, Levent Burak Kara, Stephen E. Spencer, 2006, Work in Progress -
Improving Problem Solving Performance in Statics through Body-Centric Talk. 36rd ASEE/IEEE Frontiers in Education
Conference, San Diego, CA., October, 28-31, 2006.

[pdf] [bibtex]

WeeSan Lee, Levent Burak Kara, Thomas F. Stahovich, 2006, An Efficient Graph-Based Symbol Recognizer. Eurographics Workshop on Sketch-Based Interfaces and Modeling 2006.

[pdf] [bibtex]

Levent Burak Kara, Chris D’Eramo, Kenji Shimada, 2006, Pen-based Styling Design of 3D Geometry Using Concept Sketches and Template Models. ACM Solid and Physical Modeling Conference (SPM) 2006.

[pdf] [bibtex]

Levent Burak Kara, Kenji Shimada,2006, Construction and Modification of 3D Geometry Using a Sketch-based Interface. Eurographics Workshop on Sketch-Based Interfaces and Modeling 2006.

[pdf] [bibtex]

2005

Leslie Gennari, Levent Burak Kara, Thomas F. Stahovich, Kenji Shimada, 2005, Combining Geometry and Domain Knowledge to Interpret Hand-Drawn Diagrams. Computers & Graphics 29(4): 547-562.

[pdf] [bibtex]

Levent Burak Kara, Thomas F. Stahovich, 2005, An Image-Based, Trainable Symbol Recognizer for Hand-drawn Sketches. Computers & Graphics 29(4): 501-517.

[pdf] [bibtex]

2004

Levent Burak Kara, Thomas F. Stahovich. (2004). An Image-Based Trainable Symbol Recognizer for Sketch-Based Interfaces. AAAI Fall Symposium Series 2004: Making Pen-Based Interaction Intelligent and Natural.

[pdf] [bibtex]

Leslie Gennari, Levent Burak Kara, Thomas F. Stahovich. (2004). Combining Geometry and Domain Knowledge to Interpret Hand-Drawn Diagrams. AAAI Fall Symposium Series 2004: Making Pen-Based Interaction Intelligent and Natural.

[pdf] [bibtex]

Levent Burak Kara, Thomas F. Stahovich. (2004). Hierarchical Parsing and Recognition of Hand-Sketched Diagrams. 17th ACM User Interface Software Technology (UIST) 2004.

[pdf] [bibtex]

Levent Burak Kara, Leslie Gennari, Thomas F. Stahovich. (2004). A Sketch-Based Interface for the Design and Analysis of Simple Vibratory Mechanical Systems. 2004 ASME International Design Engineering Technical Conferences (ASME/ DETC 2004).

[pdf] [bibtex]

Levent Burak Kara, Thomas F. Stahovich. (2004). Sim-U-Sketch: A Sketch-Based Interface for Simulink. Proceedings of AVI-2004, pp 354-357.

[pdf] [bibtex]

2002

Levent Burak Kara, Thomas F. Stahovich. (2002). Causal Reasoning using Geometric Analysis. AI EDAM, Vol. 16, No. 5, pp 363-384.

[pdf] [bibtex]

Chris Calhoun, Thomas F. Stahovich, Tolga Kurtoglu, Levent Burak Kara. (2002). Recognizing Multi-Stroke Symbols. AAAI Spring Symposium, Sketch Understanding, 2002.

[pdf] [bibtex]

2001

Thomas F. Stahovich, Levent Burak Kara. (2001). A Representation for Comparing Simulations and Computing the Purpose of Geometric Features. AI EDAM, Vol. 15, No. 2, pp 189-201.

[pdf] [bibtex]

Levent Burak Kara, Thomas F. Stahovich. (2001). Spatial Reasoning About Mechanical Behaviors. ASME Design Theory and Methodology Conference (DTM), DETC 2001/DTM-21684.

[pdf] [bibtex]