41 research outputs found

    Machine Learning: When and Where the Horses Went Astray?

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    Machine Learning is usually defined as a subfield of AI, which is busy with information extraction from raw data sets. Despite of its common acceptance and widespread recognition, this definition is wrong and groundless. Meaningful information does not belong to the data that bear it. It belongs to the observers of the data and it is a shared agreement and a convention among them. Therefore, this private information cannot be extracted from the data by any means. Therefore, all further attempts of Machine Learning apologists to justify their funny business are inappropriate.Comment: The paper is accepted to be published in the Machine Learning serie of the InTec

    Run-time transmission power reconfiguration and adaptive packet relocation in wireless network-on-chip

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    Network-on-chip (NoC) is an on-chip communication network that allows parallel communication between all cores to improve inter-core performance. Wireless NoC (WiNoC) introduces long-range and high bandwidth radio frequency (RF) interconnects that can possibly reduce the multi-hop communication of the planar metal interconnects in conventional NoC platforms. In WiNoC, RF transceivers account for a significant power consumption, particularly its transmitter, out of its total communication energy. CurrentWiNoC architectures employ constant maximum transmitting power for communicating radio hubs regardless of physical location of the receiver radio hubs. Besides, high transmission power consumption in WiNoC with constant maximum power suffers from significant energy and load imbalance among RF transceivers which lead to hotspot formation, thus affecting the reliability of the onchip network system. There are two main objectives covered by this thesis. Firstly, this work proposes a reconfigurable transmitting power control scheme that, by using bit error rate (BER) estimation obtained at the receiver’s side, dynamically calibrates the transmitting power level needed for communication between the source and destination radio hubs. The proposed scheme achieves significant total system energy reduction by about 40% with an average performance degradation of 3% and with no impact on throughput. The proposed design utilizes a small fraction of both area and power overheads (about 0.1%) out of total transceiver properties. The proposed technique is generic and can be applied to any WiNoC architecture for improving its energy efficiency with a negligible overhead in terms of silicon area. Secondly, an energyaware adaptive packet relocator scheme has been proposed. Based on transmission energy consumption and predefined energy threshold, packets are routed to adjacent transmitter for communication with receiver radio hub, with an aim to balance energy distribution in WiNoC. The proposed strategy alone achieves total communication energy savings of about 8%. A joint scheme of the reconfigurable transmitting power management and energy-aware adaptive packet relocator is also introduced. The scheme consistently results in an energy savings of 30% with minimal performance degradation

    Trinity Tripod, 2007-12-04

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    The informational content of trading statement releases on the JSE

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    Includes bibliographical references.A prevalent finding in prior literature, both internationally and domestically, is the association between earnings information, contained in earnings announcements, and share returns leading up to and following the publication. This study pulls together evidence across stock exchanges worldwide on which to draw comparisons of market efficiency. For the first time on the Johannesburg Stock Exchange (JSE), an event study analysis is conducted on the effects of a cautionary announcement known as a trading statement. While most research has focused on the official earnings announcements, this pioneering study synthesizes methodology adopted in related prior research to create a robust, relevant study of efficiency on the JSE. The aim of this study is to identify whether there is a relationship between unexpected earnings measures (often referred to as 'earnings surprises'), conveyed by trading statements, and future share returns. This study examines the importance, timeliness and financial exploitability of trading statement releases for both the regulator and investor. Lack of depth in trading statement history limits sample size and renders traditional earnings expectation models, which rely on comparative period figures, useless. Resultantly, numerous returnbased unexpected earnings models had to be adopted to estimate earnings surprises and gauge the predictability of future share returns

    Lobbying in EU foreign policy-making towards the Israeli-Palestinian conflict: exploring the potential of a constructivist perspective

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    This thesis explores how constructivist insights could help us to form a more complete picture of lobbying in EU foreign policy-making, with a special emphasis on EU foreign policy towards the Israeli-Palestinian conflict. It demonstrates that non-state actors (NSAs) such as business groups, NGOs, solidarity movements and think tanks, are important players in the EU’s foreign policy-making. By sharing the constructivist views on the embeddedness of actors and assuming that actors interact with each other in order to make sense of the world, this thesis investigates lobbying on the basis of three analytical dimensions; namely roles, frames and levels. It is shown that NSAs lobbying the EU play a consensual role, which is based on mutually legitimising social interactions that do not challenge the EU’s actorness and policies towards Israel and Palestine. When combined with the use of legal or technical frames, these consensual forms of interaction are conducive to a re-framing of EU policies towards Israel and Palestine. In contrast, confrontational forms of social interactions, combined with the use of political frames are more recurrent at the national level. Finally, this thesis analyses how the national level is used, when NSAs lobby the EU. It concludes that there is a partial Europeanization of lobbying carried out by NSAs based in member states. The EU and national levels tend, however, to remain quite disentangled from each other. The argument presented in this thesis is tested in three case studies (EU-Israel trade relations, the UN Report following the war in Gaza in 2008-2009 and the EU-Israel Agreement on pharmaceutical products), which represent important aspects of EU foreign policy and were frequently mentioned by NSAs and officials. Moreover, the national level is analysed in the cases of France, the United Kingdom and Germany, which are the three big member states of the EU and crucial players in EU foreign policy

    E-Governance: Strategy for Mitigating Non-Inclusion of Citizens in Policy Making in Nigeria

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    The Nigerian federation that currently has 36 states structure adopted the Weberian Public Administrative system before now as an ideal way of running government, which was characterized with the traditional way of doing things without recourse to the deployment of Information Communication Technology (ICT). Today e-governance is seen as a paradigm shift from the previous way of governance. Research has shown that, the adoption and implementation of e-governance is more likely to bring about effective service delivery, mitigate corruption and ultimately enhance citizens’ participation in governmental affairs. However, it has been argued that infrastructure such as regular electricity power and access to the Internet, in addition to a society with high rate of literacy level are required to effectively implement and realize the potentials of e-governance for improved delivery of services. Due to the difficulties currently experienced, developing nations need to adequately prepare for the implementation of e-governance on the platform of Information Communication Technology (ICT). Hence, this study seeks to examine whether the adoption and implementation of e-governance in the context of Nigeria would mitigate the hitherto non-inclusion of citizens in the formulation and implementation of government policies aimed at enhanced development. To achieve the objective of the study, data were sourced and analyzed majorly by examining government websites of 20 states in the Nigerian federation to ascertain if there are venues for citizens to interact with government in the area of policy making and feedback on government actions, as a way of promoting participatory governance. The study revealed that the adoption and implementation of e-governance in the country is yet to fully take place. This is due to lack of infrastructure, low level of literacy rate and government inability to provide the necessary infrastructure for e-governance to materialize. The paper therefore, recommends among others the need for the Federal Government to involve a sound and clear policy on how to go about the adoption and implementation of egovernance through deliberate effort at increasing budgetary allocation towards infrastructural development and mass education of citizens

    The Impact of e-Democracy in Political Stability of Nigeria

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    The history of the Nigerian electoral process has been hitherto characterized by violence stemming from disputes in election outcomes. For instance, violence erupted across some states in Northern Nigeria when results indicated that a candidate who was popular in that part of the country was losing the election leading to avoidable loss of lives. Beside, this dispute in election outcome lingers for a long time in litigation at the electoral tribunals which distracts effective governance. However, the increasing penetrating use of ICTs in Nigeria is evident in the electoral processes with consequent shift in the behavior of actors in the democratic processes, thus changing the ways Nigerians react to election outcomes. This paper examines the trend in the use ICT in the Nigerian political system and its impact on the stability of the polity. It assesses the role of ICT in recent electoral processes and compares its impact on the outcome of the process in lieu of previous experiences in the Nigeria. Furthermore, the paper also examines the challenges and risks of implementing e-Democracy in Nigeria and its relationship to the economy in the light of the socio-economic situation of the country. The paper adopted qualitative approach in data gathering and analysis. From the findings, the paper observed that e-democracy is largely dependent on the level of ICT adoption, which is still at its lowest ebb in the country. It recognizes the challenges in the provision of ICT infrastructure and argues that appropriate low-cost infrastructure applicable to the Nigerian condition can be made available to implement e-democracy and thus arouse the interest of the populace in governance, increase the number of voters, and enhance transparency, probity and accountability, and participation in governance as well as help stabilize the nascent democrac
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