Mathematical document retrieval system based on signature hashing

Scientific documents and magazines involve large number of mathematical expressions and formulas alongwith text. The continuous growth of such documents necessitates the requirement of developing specialized tools andtechniques, which could handle and analyse mathematical expressions and formulas. Mathematical expressions andformulae are highly structured and quite different from traditional text. Due to which conventional text retrievalsystem performs poorly in retrieving scientific documents based on mathematical expression formulated as a query.Mathematical information retrieval is concerned with finding information in documents that include mathematics. Toaddress the challenges posed by mathematical formulae as compared to text, this paper aims to construct a mathaware search engine, which can retrieve relevant scientific documents based on a mathematical query. A novelsignature based hashing scheme to index raw mathematical web documents is proposed in this paper, which can alsotake mathematical notational equivalences into account. The proposed system demonstrates better precision andstability of the ranked results when compared with other related state-of-the-art math aware search engines.

Mathematical Document Retrieval System based on Signature Hashing

Scientific documents and magazines involve large number of mathematical expressions and formulas along with text. The continuous growth of such documents necessitates the requirement of developing specialized tools and techniques, which could handle and analyse mathematical expressions and formulas. Mathematical expressions and formulae are highly structured and quite different from traditional text. Due to which conventional text retrieval system performs poorly in retrieving scientific documents based on mathematical expression formulated as a query. Mathematical information retrieval is concerned with finding information in documents that include mathematics. To address the challenges posed by mathematical formulae as compared to text, this paper aims to construct a math aware search engine, which can retrieve relevant scientific documents based on a mathematical query. A novel signature based hashing scheme to index raw mathematical web documents is proposed in this paper, which can also take mathematical notational equivalences into account. The proposed system demonstrates better precision and stability of the ranked results when compared with other related state-of-the-art math aware search engines.

Accessible and Navigable Representation of Mathematical Function Graphs to the Vision-Impaired

Vision-impaired students have several issues accessing mathematical documents, which are associated with representation of mathematical expressions and graphs of mathematical functions. Graphs of mathematical functions are visual presentations of mathematical information and useful to illustrate numerical or qualitative information, which are sometimes difficult or even impossible to describe. A graph is a picture that shows how sets of data are related to each other. Graphs of mathematical functions generally convey the intended message of a mathematical document. Therefore, access to graphs is essential in learning mathematics. Finding a solution to represent graphs of mathematical functions in an accessible format is necessary for the vision-impaired. This paper describes an approach to develop an application to address this issue by detecting, extracting and categorising important information from graphs of mathematical functions using three open source packages, namely, ImageMagick, GNUPLOT and Octave

Notes on Encoding Ethiopic for LATEX

Encoding Ethiopic for computer application is increasingly important for linguists, librarians, information and communication technologists. This paper focusses on encoding Ethiopic for the LATEX document preparation system, and on the methods and principles of the ethiop package which supports Ethiopie for LATEX. ethiop is a package developed by a research group at the University of Hamburg, that integrates Ethiopic to the TEX/LATEX system.We hope that this package opens up a new venue to scientific and mathematical document processing, using the rich and well developed TEX/LATEX system. Moreover, it could render a better data exchange mechanism by virtue of its platform independence and plain ASCII nature.