光華講壇——社會(huì)名流與企業(yè)家論壇第6701期
主題:Signal Reconstruction from Phase-only Measurements, Dithered Quantization, Quantized Corrupted Sensing (從抖動(dòng)量化、量化損傷傳感和單相測(cè)量中重建信號(hào))
主講人:香港浸會(huì)大學(xué)理學(xué)院 吳國(guó)寶教授
主持人:計(jì)算機(jī)與人工智能學(xué)院 蔣太翔教授
時(shí)間:1月17日16:00-17:00
會(huì)議地點(diǎn):柳林校區(qū)經(jīng)世樓D座新財(cái)經(jīng)綜合實(shí)驗(yàn)室206會(huì)議室
主辦單位:計(jì)算機(jī)與人工智能學(xué)院 新財(cái)經(jīng)綜合實(shí)驗(yàn)室 科研處 數(shù)字經(jīng)濟(jì)與交叉科學(xué)創(chuàng)新研究院
主講人簡(jiǎn)介:
吳國(guó)寶教授,美國(guó)數(shù)學(xué)學(xué)會(huì)會(huì)士(AMS Fellow),美國(guó)工業(yè)與應(yīng)用數(shù)學(xué)學(xué)會(huì)會(huì)士(SIAM Fellow),香港浸會(huì)大學(xué)理學(xué)院院長(zhǎng),數(shù)學(xué)系和數(shù)據(jù)科學(xué)系講席教授。主要研究方向?yàn)閼?yīng)用與計(jì)算數(shù)學(xué)、人工智能與機(jī)器學(xué)習(xí)、數(shù)據(jù)與影像科學(xué)與數(shù)值線(xiàn)性代數(shù)與科學(xué)計(jì)算。吳國(guó)寶教授先后擔(dān)任多個(gè)著名雜志主編或者副主編,包括SIAM Journal on Imaging Sciences,SIAM Journal on Scientific Computing,Journal of Scientific Computing,Journal of Computational and Applied Mathematics等。吳國(guó)寶教授發(fā)表學(xué)術(shù)著作700多篇,文章引用次數(shù)多達(dá)3萬(wàn)多次。
內(nèi)容提要:
In recent years, the recovery of low-complexity signals (e.g., sparse signals, low rank matrices) has been extensively studied and analyzed, which can be applied to many imaging science applications. In this talk, we discuss several variants of the recovery problems including phase-only measurements, dithered one-bit quantization, and quantized corrupted sensing. We provide theoretical insight to formulate a scientific basis for solving such signal recovery problems. Numerical examples are also given to demonstrate the usefulness of these results.
近年來(lái),低復(fù)雜度信號(hào)(例如稀疏信號(hào)、低秩矩陣)的恢復(fù)已經(jīng)得到了廣泛的研究和分析,這些研究成果可以應(yīng)用于許多成像科學(xué)領(lǐng)域。在本次報(bào)告中,我們將討論幾種恢復(fù)問(wèn)題的變體,包括僅相位測(cè)量、抖動(dòng)一位量化和量化的受損感知。我們提供了理論見(jiàn)解以構(gòu)建解決這些信號(hào)恢復(fù)問(wèn)題的科學(xué)基礎(chǔ)。同時(shí),還提供了數(shù)值示例來(lái)展示這些結(jié)果的實(shí)用性。