Recommending relevant contents to users automatically in a web service is an important aspect that links with the income of many internet companies. The ICML 2012 Exploration & Exploitation Workshop holds an open challenge that aims at building stateof-the-art news article recommendation system on the Yahoo! platform. We propose an efficient scoring model that recommends the news article with t...

While there is much work in the literature on agent component technologies, there are comparatively few results on the engineering issues arising from the integration of these technologies into a complete and coherent agent architecture. This paper addresses these issues from both implementation and general architectural design point of view. The KGP (Knowledge, Goals and Plan) agent model deve...

Using data on 61 oil companies from 2001-09, we examine the evolution of revenue efficiency of National Oil Companies (NOCs) and shareholder-owned oil companies (SOCs). We find that NOCs generally are less efficient than SOCs, but their efficiency increased faster over the last decade. We also find evidence that partial privatizations increase operational efficiency, and (weaker) evidence that ...