Mathematical equation retrieval using plain words as a query

Abstract

This paper proposes how to effectively retrieve the mathematical equations when the plain words are given as a query. The proposed system requires no complicated mathematical symbols, no particular input tool and no constraint of query. Users can enter a query with plain words like the traditional Information Retrieval. For this, we extract features from the plain texts that are converted from the real math equations. Experimental results show an outstanding performance, a MRR of 0.6585.

Recognition and Retrieval of Mathematical Expressions from Arabic Documents

“…Such systems were based on a Structural approach, a Textual approach, or a Hybrid approach. Structural approach systems are concerned with how to express the meaning of a content based on the structure, like that of ( [13]; [14]; or [15]), Textual approaches are concerned with addressing math content as textual information like the work of ( [16]; [6]; [17]; and [18]). Hybrid approaches, on the other hand, combine both structural and textual approaches to search for math content like that of ( [19]; [11]; and [4].…”

On the Parameterized Complexity of Associative and Commutative Unification

“…Although unification has a long history beginning from a seminal work by Herbrand in 1930 (e.g., see [14]), it is becoming important again because math search recently attracts researchers in information retrieval (IR) community [11,13,15]. For example, math search is adopted as a pilot task in an IR evaluation conference NTCIR 3 .…”