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Delay evaluation is always a crucial concern in the VLSI design and it becomes increasingly more critical in the nowadays deep-submicron technology. To obtain an accurate delay value, the gate modeling is a key issue. As the VLSI feature size scaling down and meanwhile operating frequency increasing, the modeling work becomes more difficult than ever for(More)
Huang et al. (2004) has recently proposed an on-line sequential ELM (OS-ELM) that enables the extreme learning machine (ELM) to train data one-by-one as well as chunk-by-chunk. OS-ELM is based on recursive least squares-type algorithm that uses a constant forgetting factor. In OS-ELM, the parameters of the hidden nodes are randomly selected and the output(More)
In this letter, we develop a multichannel blind source separation algorithm based on a beamspace transform and the multichannel nonnegative matrix factorization (NMF) method. The conventional multichannel NMF algorithm performs well with multichannel mixing data, but there is still room for enhancement in multichannel real-world recording data. In this(More)
The routing channels of an FPGA consist of wire segments of various types providing the tradeoff between performance and routability. In the routing architectures of recently developed FPGAs (e.g., Virtex-II), there are more versatile wire types and richer connections between them than those of the older generations of FPGAs (e.g. XC4000). To fully exploit(More)
This paper proposes an effective method for the automatic music transcription in polyphonic music. The method consists of a combination of Non-negative Matrix Factorization (NMF), subharmonic summation method and onset detection algorithm. We decompose the magnitude spectrum of a music signal into the spectral component and the temporal information of every(More)