Learn More
Discrete-time queues are infinite dimensional switches in time. Ever since Shannon published his paper ("Memory requirements in telephone exchange," Bell Syst. Tech. J., pp. 343-349, vol. 29, 1950) on the memory requirements in a telephone exchange, there have been tremendous efforts in the search for switches with minimum complexity. Constructing queues(More)
The purpose of extractive summarization is to automatically select a number of indicative sentences, passages, or paragraphs from the original document according to a target summarization ratio and then sequence them to form a concise summary. In the paper, we proposed the use of probabilistic latent topical information for extractive summarization of(More)
We present a multi-instance object segmentation algorithm to tackle occlusions. As an object is split into two parts by an occluder, it is nearly impossible to group the two separate regions into an instance by purely bottom-up schemes. To address this problem, we propose to incorporate top-down category specific reasoning and shape prediction through(More)
— Queueing theory is generally known as the theory to study the performance of queues. In this paper, we are interested in another aspect of queueing theory, the theory to construct queues via switched delay lines. We consider three types of discrete-time queues: linear compressors, non-overtaking delay lines and flexible delay lines. These three types of(More)
—In this paper, we consider extractive summarization of broadcast news speech and propose a unified probabilistic gen-erative framework that combines the sentence generative probability and the sentence prior probability for sentence ranking. Each sentence of a spoken document to be summarized is treated as a probabilistic generative model for predicting(More)
This paper presents a system for speech retrieval of Mandarin broadcast news. First, several data-driven and unsupervised approaches are integrated into the broadcast news transcription system to improve the speech recognition accuracy and efficiency. Then, a multi-scale indexing paradigm for broadcast news retrieval is proposed to make use of the special(More)
— In this paper, we study the problem of exact emu-lation of two types of optical queues: (i) N-to-1 output-buffered multiplexers with variable length bursts, and (ii) N × N output-buffered switches with variable length bursts. For both queues, the delay of a packet is known upon its arrival. As such, one can emulate such queues by finding a delay path that(More)
The purpose of extractive summarization is to automatically select a number of indicative sentences, passages, or paragraphs from the original document according to a target summarization ratio and then sequence them to form a concise summary. In the paper, we proposed the use of probabilistic latent topical information for extractive summarization of(More)
The purpose of extractive summarization is to automatically select indicative sentences, passages, or paragraphs from an original document according to a certain target summarization ratio, and then sequence them to form a concise summary. In this paper, in contrast to conventional approaches, our objective is to deal with the extractive summarization(More)