Both ontology content and ontology building tools evaluations play an important role before using ontologies in Semantic Web applications. In this paper we try to assess ontology evaluation functionalities of the following ontology platforms: OilEd, OntoEdit, Protégé-2000, and WebODE. The goal of this paper is to analyze whether such ontology platforms prevent the ontologist from making knowled...

Oil is a major source of income for Ecuador and since the 1970s has been the engine of the economy. The 1970s oil price boom lifted Ecuador’s economy formerly one of the poorest in Latin Americaby an average of 7% annually, with per capita income rising from 290 USD in 1972 to 1,200 USD in 2000. Today, oil continues to account for 40% of the nation export earnings and government budget. Most of...

The aim of this study is to test and analyze the long-term short-term effects crude oil prices inflation on algae export in Indonesia. were tested using multiple cointegration regression error correction models. Furthermore, annual time series data from 2012 2021 was used results analysis show that long term, price have a positive effect export. While short only positively influences its export...

This study investigated if revenue from the oil sector displaced export of manufactures in oil-rich African countries over period 2000 to 2020. Using panel ARDL model, findings indicate that short run, rents had an insignificant positive impact on for all sampled. However, long was positive. The run results individual revealed improved Nigeria and Ghana, while Libya, Algeria Gabon adverse. ther...

The extensive fluctuations in oil prices have vast impacts on economies. The economical instability may be observed for both oil-exporting and oil-importing countries due to high volatility of oil prices. Oil price data as a time series is a highly nonlinear system which exhibits complex patterns. Traditional oil time series analysis employs statistical methods to model and explain the oil data...

Oil prices directly impact Venezuela's circumstance due to 95% of their revenue come from oil export. Since 2013, drop significantly compared the previous year. Thus, crisis hits Venezuela severely. The impacts not only feel in domestic level but also international level. China is bilateral partner that was impacted by crisis. failed fulfill export pay loan oil-for-loan diplomacy scheme. cooper...