3,509 research outputs found

    Towards Self-Supervised High Level Sensor Fusion

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    In this paper, we present a framework to control a self-driving car by fusing raw information from RGB images and depth maps. A deep neural network architecture is used for mapping the vision and depth information, respectively, to steering commands. This fusion of information from two sensor sources allows to provide redundancy and fault tolerance in the presence of sensor failures. Even if one of the input sensors fails to produce the correct output, the other functioning sensor would still be able to maneuver the car. Such redundancy is crucial in the critical application of self-driving cars. The experimental results have showed that our method is capable of learning to use the relevant sensor information even when one of the sensors fail without any explicit signal

    Semantic Label Reduction Techniques for Autonomous Driving

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    Semantic segmentation maps can be used as input to models for maneuvering the controls of a car. However, not all labels may be necessary for making the control decision. One would expect that certain labels such as road lanes or sidewalks would be more critical in comparison with labels for vegetation or buildings which may not have a direct influence on the car's driving decision. In this appendix, we evaluate and quantify how sensitive and important the different semantic labels are for controlling the car. Labels that do not influence the driving decision are remapped to other classes, thereby simplifying the task by reducing to only labels critical for driving of the vehicle

    Knowledge and perceptions of national and provincial tuberculosis control programme managers in Pakistan about the WHO Stop TB strategy.

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    Objective To understand how national and provincial tuberculosis programme managers in Pakistan perceive and engage with the Stop TB strategy, its strengths, weaknesses and their experience in its implementation. National and provincial tuberculosis programme managers play an important role in effective implementation of the Stop TB strategy. Design A qualitative interview study was conducted with 10 national and provincial tuberculosis programme managers to understand how they perceive and engage with the Stop TB strategy, its strengths, weaknesses and their experience in its implementation. Managers were selected purposively; 10 managers were interviewed (six national staff and four from provincial level). Participants National and provincial tuberculosis programme managers in Pakistan. Managers were selected purposively; 10 managers were interviewed (six national staff and four from provincial level). Setting National and provincial tuberculosis programmes in Pakistan Main outcome measures 1. Knowledge and perceptions of national and provincial tuberculosis programme managers about the Stop TB strategy 2. Progress in implementing the strategy in Pakistan 3. Significant success factors 4. Significant implementation challenges 5. Lessons learnt to scale up successful implementation. Results The managers reported that most progress had been made in extending DOTS, health systems strengthening, public -private mixed interventions, MDR-TB care and TB/HIV care. The four factors that contributed significantly to progress were the availability of DOTS services, the public-private partnership approach, comprehensive guidance for TB control and government and donor commitment to TB control. Conclusion This study identified three main challenges as perceived by national and provincial tuberculosis programme managers in terms of implementing the Stop TB strategy: 1. Inadequate political commitment, 2. Issue pertaining to prioritisation of certain components in the TB strategy over others due to external influences and 3. Limitations in the overall health system. To improve the tuberculosis control programme in the country political commitment needs to be enhanced and public -private partnerships increased. This can be done through government prioritisation of TB control at both national and provincial levels; donor-funded components should not receive undue attention; and partnerships with the private health sector, health institutions not yet covered by DOTS services, non-governmental organisations and patient coalitions should be increased

    ‘Urbanisation of Everybody’, Institutional Imperatives, and Social Transformation in Pakistan

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    Cultural change and social transformation are essential elements of the process of development. They complement and sustain economic growth. Economic historians acknowledge that the rise of the West from poverty to wealth was as much the result of improvements in trade, savings, investment and productivity as of emerging norms of thrift, trust, specialisation, rationality and contractual relations [Rosenberg and Birdzell (1986)]. In fact, it would not be an exaggeration to say that economic development is essentially a phenomenon of cultural change. The recognition of the role of cultural and social factors in economic growth has led to a subtle revision of the terminology from ‘economic development’ to the adjectiveless term ‘development’ or the fully spelled out title of economic and social development. Yet this acknowledgement has remained largely on the conceptual plane. It has not been translated into policies and programmes to deliberately set the direction of cultural change and define the alignment of social organisation. Development strategies have, by and large, treated social and cultural factors as exogenous variables. This is true of development planning in general and in particular of its practice in Pakistan. In fifty years of economic planning in Pakistan, little attention has been paid to the social and cultural aspects of development. This paper argues that the neglect of social and cultural factors has created an institutional lag between spatial, economic and technological sectors on the one hand and the cultural, social and political institutions, on the other. Pakistan is predominantly an urbanised society spatially and demographically, but its social institutions and cultural ethos remain rooted in traditions of rural origins.

    An Assessment of Pakistan’s Urban Policies, 1947–1997

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    What public policies and programmes have been followed in dealing with mounting urban crisis in Pakistan over the past 50 years? This question has been addressed in the present article. Pakistan’s urban policies fall in three distinct phases, corresponding to evolving political and economic regimes. Yet, they show a fundamental continuity in that they have been driven by ‘plots and public works’ strategy. Pakistan has not been lacking in ‘up-to-date’ policies and programmes. Its urban policies have resulted in notable achievements and pervasive failures. The paper assesses both the achievements and shortfalls and identifies private interests that have benefited at the cost of public welfare.

    Ethnic Enclaves and Social Cohesion

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    Ethnic enclaves have a vibrant local commercial and services infrastructure. They are not altogether places of poverty and despair, at least not in the Toronto Census Metropolitan Area (CMA). Their social benefits outweigh the disadvantages of the predominance of one ethnic group. Social cohesion is largely promoted through the equality of economic opportunities, open society and public education. These are supra–neighbourhood processes, and institutionalizing them through the metropolitan, provincial and societal policies are ways to promote social cohesion. Neighbourhoods play an insignificant role in these processes
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