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[Author] Hao HE(6hit)

1-6hit
  • Multicast Routing in GMPLS Networks with Unequal Branching Capability

    Peigang HU  Yaohui JIN  Weisheng HU  Yikai SU  Wei GUO  Chunlei ZHANG  Hao HE  Weiqiang SUN  

     
    LETTER-Switching for Communications

      Vol:
    E88-B No:4
      Page(s):
    1682-1684

    In this letter, we study dynamic multicasting in GMPLS networks with unequal branching capability. An overlapped multicasting tree is proposed to reduce blocking probability, which can utilize the branching capabilities more efficiently than the traditional Steiner tree. A nearest node branch first heuristic is developed to find such an overlapped tree.

  • Maintaining System State Information in a Multiagent Environment for Effective Learning

    Gang CHEN  Zhonghua YANG  Hao HE  Kiah-Mok GOH  

     
    PAPER-Distributed Cooperation and Agents

      Vol:
    E88-D No:1
      Page(s):
    127-134

    One fundamental issue in multiagent reinforcement learning is how to deal with the limited local knowledge of an agent in order to achieve effective learning. In this paper, we argue that this issue can be more effectively solved if agents are equipped with a consistent global view. We achieve this by requiring agents to follow an interacting protocol. The properties of the protocol are derived and theoretically analyzed. A distributed protocol that satisfies these properties is presented. The experimental evaluations are conducted for a well-known test-case (i.e., pursuit game) in the context of two learning algorithms. The results show that the protocol is effective and the reinforcement learning algorithms using it perform much better.

  • An Attention-Based Hybrid Neural Network for Document Modeling

    Dengchao HE  Hongjun ZHANG  Wenning HAO  Rui ZHANG  Huan HAO  

     
    LETTER-Artificial Intelligence, Data Mining

      Pubricized:
    2017/03/21
      Vol:
    E100-D No:6
      Page(s):
    1372-1375

    The purpose of document modeling is to learn low-dimensional semantic representations of text accurately for Natural Language Processing tasks. In this paper, proposed is a novel attention-based hybrid neural network model, which would extract semantic features of text hierarchically. Concretely, our model adopts a bidirectional LSTM module with word-level attention to extract semantic information for each sentence in text and subsequently learns high level features via a dynamic convolution neural network module. Experimental results demonstrate that our proposed approach is effective and achieve better performance than conventional methods.

  • Two Classes of Optimal Ternary Cyclic Codes with Minimum Distance Four Open Access

    Chao HE  Xiaoqiong RAN  Rong LUO  

     
    LETTER-Information Theory

      Pubricized:
    2023/10/16
      Vol:
    E107-A No:7
      Page(s):
    1049-1052

    Cyclic codes are a subclass of linear codes and have applications in consumer electronics, data storage systems, and communication systems as they have efficient encoding and decoding algorithms. Let C(t,e) denote the cyclic code with two nonzero αt and αe, where α is a generator of 𝔽*3m. In this letter, we investigate the ternary cyclic codes with parameters [3m - 1, 3m - 1 - 2m, 4] based on some results proposed by Ding and Helleseth in 2013. Two new classes of optimal ternary cyclic codes C(t,e) are presented by choosing the proper t and e and determining the solutions of certain equations over 𝔽3m.

  • Resource Efficient Top-K Sorter on FPGA

    Binhao HE  Meiting XUE  Shubiao LIU  Feng YU  Weijie CHEN  

     
    LETTER-Digital Signal Processing

      Pubricized:
    2022/03/02
      Vol:
    E105-A No:9
      Page(s):
    1372-1376

    The top-K sorting is a variant of sorting used heavily in applications such as database management systems. Recently, the use of field programmable gate arrays (FPGAs) to accelerate sorting operation has attracted the interest of researchers. However, existing hardware top-K sorting algorithms are either resource-intensive or of low throughput. In this paper, we present a resource-efficient top-K sorting architecture that is composed of L cascading sorting units, and each sorting unit is composed of P sorting cells. K=PL largest elements are produced when a variable length input sequence is processed. This architecture can operate at a high frequency while consuming fewer resources. The experimental results show that our architecture achieved a maximum 1.2x throughput-to-resource improvement compared to previous studies.

  • A Class of Binary Cyclic Codes and Their Weight Distributions

    Chao HE  Rong LUO  Mei YANG  

     
    LETTER-Coding Theory

      Vol:
    E103-A No:3
      Page(s):
    634-637

    Let m, k be positive integers with m=2k and k≥3. Let C(u, ν) is a class of cyclic codes of length 2m-1 whose parity-check polynomial is mu(x)mν(x), where mu(x) and mν(x) are the minimal polynomials of α-u and α-ν over GF(2). For the case $(u, u)=(1, rac{1}{3}(2^m-1))$, the weight distributions of binary cyclic codes C(u, ν) was determined in 2017. This paper determines the weight distributions of the binary cyclic codes C(u, ν) for the case of (u, ν)=(3, 2k-1+1). The application of these cyclic codes in secret sharing is also considered.