Retrieving Records from a Gigabyte of Text on a Mini-Computer Using Statistical Ranking

Using Text Surrounding Method to Enhance Retrieval of Online Images by Google Search Engine

Purpose: the current research aimed to compare the effectiveness of various tags and codes for retrieving images from the Google. Design/methodology: selected images with different characteristics in a registered domain were carefully studied. The exception was that special conceptual features have been apportioned for each group of images separately. In this regard, each group image surr...

Data Extraction using Content-Based Handles

In this paper, we present an approach and a visual tool, called HWrap (Handle Based Wrapper), for creating web wrappers to extract data records from web pages. In our approach, we mainly rely on the visible page content to identify data regions on a web page. In our extraction algorithm, we inspired by the way a human user scans the page content for specific data. In particular, we use text fea...

Compression and Fast Indexing for Multi-Gigabyte Text Databases

In the last two years we have developed improved techniques for indexing and retrieval of text data, including algorithms for inversion, for compression of the data and index, and for economical ranking. These techniques were, however, tested on relatively small databases. In this paper we describe our experiences in scaling these techniques up to a large (2 Gb) heterogeneous text database. Our...

A new model for persian multi-part words edition based on statistical machine translation

Multi-part words in English language are hyphenated and hyphen is used to separate different parts. Persian language consists of multi-part words as well. Based on Persian morphology, half-space character is needed to separate parts of multi-part words where in many cases people incorrectly use space character instead of half-space character. This common incorrectly use of space leads to some s...

A New Model for Text Coherence Evaluation using Statistical Characteristics