Decorative reliefs are widely used for e.g. packaging and porcelain design. In periodic reliefs, the relief repeats a pattern, for example all the way around an underlying surface of revolution. Reverseengineering of existing reliefs allows them to be re-applied to different base surfaces; we show here how to segment a single repeat unit of a periodic relief starting from a scanned triangle mes...

1. Hashtags increasingly used to convey the actual message in tweets. Phrases and sentences turned into a hashtag. 2. Word with sentiment may trap inside a multi-word hashtag 3. Noisy and compact nature of language leads to hashtags very difficult to segment; sometimes depends on context. eg. #together; “to get her” or “together”? 4. Can we use carefully auto-segmented hashtags for training? RE...

Segmentation of geometric reliefs from a textured background has various applications in reverse engineering. We consider two approaches to solve this problem. The first classifies parts of a surface mesh as relief or background, and then uses a snake which moves inwards towards the desired relief boundary, which is coarsely located using an energy based on the classification. The second approa...

Image segmentation that partitions a given image into meaningful regions is an important task of image analysis for representation, interpretation and recognition. If the image consists of man-made objects in well controlled situations such as industrial environments, segmentation can be easy. In applications such as target acquisition in natural scenes, there is no control of the environment, ...

Big data time series data streams are ubiquitous in finance, meteorology and engineering. It may be impossible to process an entire “big data” continuous data stream or to scan through it multiple times due to its tremendous volume. In Heraclitus’s well-known saying, “you never step in the same stream twice,” and so it is with “big data” temporal data streams. Unlike traditional data sets, big ...

The human genome is a mosaic of isochores, which are long (>200 kb) DNA sequences that are fairly homogeneous in base composition and can be assigned to five families comprising 33%-59% of GC composition. Although the compartmentalized organization of the mammalian genome has been investigated for more than 40 years, no satisfactory automatic procedure for segmenting the genome into isochores i...

Image segmentation is fundamental to many image analysis problems. It aims to partition a digital image into a set of nonoverlapping homogeneous regions. The main contribution of this paper is the development of a new segmentation procedure which is designed to segment images corrupted by correlated noise. This new segmentation procedure is based on Rissanen’s minimum description length (MDL) p...

There has been increased interest in time series data mining recently. In some cases, approaches of real-time segmenting time series are necessary in time series similarity search and data mining, and this is the focus of this paper. A real-time iterative algorithm that is based on time series prediction is proposed in this paper. Proposed algorithm consists of three modular steps. (1) Modeling...