Search Constraints

Number of results to display per page
Results for: Responsibility Remove constraint Responsibility

Search Results

  • Presentation 
    Sampling Table Configurations for the Hierarchical Poisson-Dirichlet Process

    Sampling Table Configurations for the Hierarchical Poisson-Dirichlet Process

    This video was recorded at European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases (ECML PKDD), Athens 2011. Hierarchical modeling and reasoning are fundamental in machine intelligence, and for this the two-parameter Poisson-Dirichlet Process (PDP) plays an important role. The most popular MCMC sampling algorithm for the hierarchical PDP and hierarchical Dirichlet Process is to conduct an incremental sampling based on the Chinese restaurant metaphor, which originates from the Chinese restaurant process (CRP). In this paper, with the same metaphor, we propose a new table representation for the hierarchical PDPs by introducing an auxiliary latent variable, called table indicator, to record which customer takes responsibility for starting a new table. In this way, the new representation allows full exchangeability that is an essential condition for a correct Gibbs sampling algorithm. Based on this representation, we develop a block Gibbs sampling algorithm, which can jointly sample the data item and its table contribution. We test this out on the hierarchical Dirichlet process variant of latent Dirichlet allocation (HDP-LDA) developed by Teh, Jordan, Beal and Blei. Experiment results show that the proposed algorithm outperforms their "posterior sampling by direct assignment" algorithm in both out-of-sample perplexity and convergence speed. The representation can be used with many other hierarchical PDP models.

    Subjects:
    Computing
    Keywords:
    Machine learning Artificial intelligence
    Resource Type:
    Presentation
     
    OER
  • Others 
    Intellectual Property Department

    Intellectual Property Department

    Intellectual Property Department was established on 2 July 1990. The Department took over from the Registrar General’s Department the responsibility for the registration of patents and trade marks for goods and for other related matters. The Director of Intellectual Property replaced the Registrar General as the Registrar of Trade Marks and Registrar of Patents. The Department also took over functions relating to copyright from the Attorney General’s Department. In 1998, the Department also became the Government’s civil legal advisor on intellectual property legal matters. This website covers the materials of trademarks, patents, designs, and copyright.

    Course related:
    ISE5601 Managing and Measuring Intellect Property
    Subjects:
    Industrial and Systems Engineering
    Keywords:
    China -- Hong Kong Intellectual property
    Resource Type:
    Others
     
  • Others 
    IEEE Spectrum

    IEEE Spectrum

    IEEE is the world’s largest technical professional organization dedicated to advancing technology for the benefit of humanity. IEEE and its members inspire a global community to innovate for a better tomorrow through its more than 396,000 members in over 160 countries, and its highly cited publications, conferences, technology standards, and professional and educational activities. IEEE is the trusted “voice” for engineering, computing, and technology information around the globe.

    Course related:
    ENG1003 Freshman Seminar for Engineering
    Subjects:
    Electronic and Information Engineering and Electrical Engineering
    Keywords:
    Electronic engineering Automatic control. Electronics
    Resource Type:
    Others
     
  • Video 
    Crash Course Engineering

    Crash Course Engineering

    In 46 episodes, Dr. Shini Somara will teach you how we built much of our world with engineering! This course is based on introductory college-level material across many different engineering disciplines. By the end of this course, you will be able to:

    *Consider the impact of engineering solutions in global, economic, environmental, and societal contexts

    *Recognize ethical and professional responsibilities in engineering situations and make informed judgements

    *Apply principles of engineering, science, and mathematics to identify and solve technical problems

    *Discuss grand challenges and questions in engineering and progress on solutions

    Keywords:
    Engineering
    Resource Type:
    Video