The Document and Pattern Recognition Lab (dprl) explores ways to improve the algorithms and tools used for
automatic recognition and retrieval of information in documents.
- (June) As part of an Image and document processing, recognition and interaction seminar held at IUT/Univ. Nantes (France, on June 30), Prof. Zanibbi gave a talk on human math retrieval studies and math search engines (work done with Keita Wangari, Matthias Reichenbach, David Stalnaker and Nidhin Pattaniyil.) Other presenters were researchers from Australia, Brazil, and China. (program; slides)
- (June) Amit Pillay has successfully defended his MSc thesis, Intelligent Combination of Structural Analysis Algorithms: Application to Mathematical Expression Recognition, which presents a method for combining DRACULAE math notation parsers using a Graph Transformer Network (GTN). This technique was successful in increasing spatial relationship detection accuracy.
- (May) Congratulations to Kenny Davila, who has succesfully completed his Research Potential Assessment, which is required for PhD students at the end of their first year.
- (May) The lab welcomes Kevin Talmadge, who will be working on the new Python-based Recognition Strategy Library for his MSc Project in the summer.
- (May) Congratulations to Zack Miller, who received the best poster award for the RIT Computer Science MSc Poster Presentation Session for Spring 2014 (poster).
- (May) Congratulations to Zack Miller, Nidhin Pattaniyil and Christopher Sasarak, who have all successfully completed their MS Projects (their presentation posters are available from the "Publications" link above).
- (Apr.) Kenny Davila's paper describing a state-of-the-art classifier for handwritten mathematical symbols has been accepted for oral presentation at ICFHR 2014 being held in Greece this coming September.
- (Apr.) Keita Del Valle's paper describing a user study of the min math entry and search interface has been accepted for publication at ACM SIGIR 2014. SIGIR is being held in the Gold Coast, Australia in July.
- (Apr.) Matthias Reichenbach's paper on the effect of rendering math expression in search hits has been accepted for publication at ACM SIGIR 2014.
- (Mar.) The lab has released a number of systems for math recognition and retrieval as open source on GitHub (DPRL GitHub Page). We hope to add some more information to these pages soon.
- (Mar.) Kenny Davila has released his collection of isolated handwritten math symbol classifiers under GNU GPL v.3 (available here). In benchmarking experiments, the best classifiers (using an SVM with RBF kernel) have recognition rates that match or exceed the best published rates for the MathBrush handwritten symbol data set.
- (Mar.) As part of his upcoming sabbatical, Prof. Zanibbi will be a Visiting Professor at IRCCyN/IVC (Nantes, France) during June and July, and at the University of Waterloo Computer Science Department (Canada) in October.