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- Zsolt Fekete
- Oper. Res. Lett.
- 2006

We consider the following two problems. (i) Given a graph, add a minimum size clique to the graph such that the resulting graph is rigid in the plane. (ii) Given a graph, contract a minimum sizeâ€¦ (More)

- Zsolt Fekete, Tibor JordÃ¡n, Walter Whiteley
- ESA
- 2004

We prove that all planar Laman graphs (i.e. minimally generically rigid graphs with a non-crossing planar embedding) can be generated from a single edge by a sequence of vertex splits. It has beenâ€¦ (More)

- DÃ¡vid SiklÃ³si, AndrÃ¡s A. BenczÃºr, +6 authors JÃ¡cint SzabÃ³
- 2008

We use a combination, in the expected order of their strength, of the following classificators: SVM over tf.idf, an augmented set of the public statistical spam features, graph stacking and textâ€¦ (More)

- AndrÃ¡s A. BenczÃºr, DÃ¡vid SiklÃ³si, +6 authors Adrienn SzabÃ³
- 2008

While Web archive quality is endangered by Web spam, a side effect of the high commercial value of top-ranked search-engine results, so far Web spam filtering technologies are rarely used by Webâ€¦ (More)

- L. Dudas, Zsolt Fekete, +4 authors G. Szucs
- IEEE VAST
- 2012

OWLAP (Operative Workbench for Large-scale Analytics and Presentation) is a visual analytics tool that allows the user to browse and drill down the multidimensional data on-line with the possibilityâ€¦ (More)

- BÃ¡lint DarÃ³czy, IstvÃ¡n PetrÃ¡s, +4 authors Zsuzsa Weiner
- CLEF
- 2009

Our approach to the ImageCLEF 2009 tasks is based on image segmentation, SIFT keypoints and Okapi BM25 based text retrieval. We use feature vectors to describe the visual content of an image segment,â€¦ (More)

- BÃ¡lint DarÃ³czy, IstvÃ¡n PetrÃ¡s, +4 authors Zsuzsa Weiner
- CLEF
- 2009

Our approach to the ImageCLEF 2009 tasks is based on image segmentation, SIFT keypoints and Okapi BM25-based text retrieval. We use feature vectors to describe the visual content of an image segment,â€¦ (More)

- BÃ¡lint DarÃ³czy, Zsolt Fekete, +4 authors Attila PereszlÃ©nyi
- CLEF
- 2008

We describe our image processing system used in the ImageCLEF 2008 Photo Retrieval and Visual Concept Detection tasks. Our method consists of image segmentation followed by feature generation overâ€¦ (More)

- Zsolt Fekete, Tibor JordÃ¡n, ViktÃ³ria E. Kaszanitzky
- Graphs and Combinatorics
- 2015

Let G = (V,E) be a graph and u, v âˆˆ V be two distinct vertices. We give a necessary and sufficient condition for the existence of an infinitesimally rigid two-dimensional bar-and-joint framework (G,â€¦ (More)

- BÃ¡lint DarÃ³czy, Zsolt Fekete, MÃ¡tyÃ¡s Brendel
- CLEF
- 2008

We describe our approach to the ImageCLEF-VisualConcept 2008 task. Our method is based on image segmentation, using a feature vector describing the visual content of image segments or the entireâ€¦ (More)