✦ LIBER ✦

Extracting historical time periods from the Web

✍ Scribed by Viktor de Boer; Maarten van Someren; Bob J. Wielinga

Publisher: John Wiley and Sons
Year: 2010
Tongue: English
Weight: 360 KB
Volume: 61
Category: Article
ISSN: 1532-2882
DOI: 10.1002/asi.21378

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

In this work we present an automatic method for the extraction of time periods related to ontological concepts from the Web. The method consists of two parts: an Information Extraction phase and a Semantic Representation phase. In the Information Extraction phase, temporal information about events that are associated with the target instance are extracted from Web documents. The resulting distribution is normalized and a model is fit to it. This distribution is then converted into a Semantic Representation in the second phase. We present the method and describe experiments where time periods for four different types of concepts are extracted and converted to a time representation vocabulary, based on the TIMEX2 annotation standard.

📜 SIMILAR VOLUMES

Extracting focused knowledge from the se

Extracting focused knowledge from the semantic web

✍ LOUISE CROW; NIGEL SHADBOLT 📂 Article 📅 2001 🏛 Elsevier Science 🌐 English ⚖ 1014 KB

Ontologies are increasingly being recognized as a critical component in making networked knowledge accessible. Software architectures which can assemble knowledge from networked sources coherently according to the requirements of a particular task or perspective will be at a premium in the next gene

Extraction of building product image fro

Extraction of building product image from the Web

✍ Walaiporn Nakapan; Gilles Halin; Jean-Claude Bignon; Marc Wagner 📂 Article 📅 2004 🏛 John Wiley and Sons 🌐 English ⚖ 284 KB

The HYPERCAT (HYPERmedia electronic CATalog) project proposes a digital organization of the technical information relative to the building products and materials. Its application on technical information search by images is one of context-based image search engines. However, a manual construction of

Extraction and Periodate Cleavage Studie

Extraction and Periodate Cleavage Studies of the Tannin Obtained from Pinus caribuea, Morelet

✍ Dines, A.I. ;Bope, F.W. 📂 Article 📅 1954 🏛 Elsevier ⚖ 314 KB

Intensification of 1-phenylethanol produ

Intensification of 1-phenylethanol production by periodical membrane extraction of the product from fermentation broth

✍ Mário Mihal'; Jozef Markoš; Július Annus; Vladimír Štefuca 📂 Article 📅 2012 🏛 Wiley (John Wiley & Sons) 🌐 English ⚖ 223 KB

## Abstract **BACKGROUND:** Enantioselective bioreduction of acetophenone to S‐(−)‐1‐phenylethanol by __Saccharomyces cerevisiae__ under non‐growth conditions is inhibited by the product created. This study investigated the possibility of intensification and mathematical simulation of 1‐phenylethan

Estimating historic lake stages from one

Estimating historic lake stages from one-time snapshot, the Shuttle Radar Topography Mission of 2000

✍ Kon Joon Bhang; Frank W. Schwartz; Seok-Soon Park 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 375 KB

## Abstract Lake studies play an important role in water management, ecology and other environmental issues. Monitoring lake stages is typically the first step on the lake studies. However, for the Prairie Pothole Region (PPR) of North America with millions of small lakes and potholes, onsite measu

Air temperature changes in the Canadian

Air temperature changes in the Canadian Arctic from the early instrumental period to modern times

✍ Rajmund Przybylak; Zsuzsanna Vizi 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 607 KB

This article presents a detailed account of air temperature (using four thermal parameters: mean daily air temperature (MDAT), maximum daily temperature (TMAX), minimum daily temperature (TMIN), and diurnal temperature range (DTR)) in the Canadian Arctic from 1819 to 1859. As source data, the author