Zhu Li is now a professor with the Dept of Computer Science & Electrical Engineering (CSEE), University of Missouri,Kansas City, and the director of the NSF Center for Big Learning at UMKC. He was Sr. Staff Researcher/Sr. Manager with with Samsung Research America's Multimedia Standards Research Lab in Richardson, TX, 2012-2015, Sr. Staff Researcher/Media Analytics Group Lead with FutureWei (Huawei) Technology's Media Lab in Bridgewater, NJ, 2010~2012, and an Assistant Professor with the Dept of Computing, The Hong Kong Polytechnic University from 2008 to 2010, and a Principal Staff Research Engineer with the Multimedia Research Lab (MRL), Motorola Labs, from 2000 to 2008.
## 讲座简介
Due to the increased popularity of augmented and virtual reality experiences, as well as 3D sensing for auto-driving, the interest in capturing high resolution real-world point clouds has grown significantly in recent years. Point cloud is a new class of signal that is non-uniform and sparse and this present unique challenges to the signal processing, compression and learning problems. In this talk, we present our multi-scale sparse convolutional learning and Graph Fourier Transform (GFT) based framework for large scale point cloud processing, with applications to the geometry and attributes super-resolution, and dynamic point cloud compression with latent space compensation. The architecture is memory efficient and can learn deep networks to handle large scale point cloud in real world applications. Initial results demonstrated that this framework achieved new state of the art results in geometry super-resolution, attributes deblocking and super-resolving, and dynamic point cloud sequence compression.
Prof. May is a professor at the University of Chicago. He is a world-famous algebraic topologist and a member of the inaugural class of Fellows of the American Mathematical Society. He has made foundational and groundbreaking contributions to many subjects in algebraic topology and homotopy theory, such as computation of the stable homotopy groups of spheres, the May spectral sequences, theory of generalized cohomology operations, infinite loop space theory, equivariant homotopy theory, highly structured ring spectra theory, theory of operads, parametrized homotopy theory, theory of model categories, etc. Prof. May has published more than 100 papers in leading mathematical journals, such as the Annals of Mathematics. He has also written many books in homotopy theory, including a very influential textbook, A concise course in algebraic topology. He had served for many years as the chair of the Department of Mathematics at the University of Chicago, as well as on its graduate admissions and studies committees. Prof. May values education in mathematics very highly. Since 2000, he has been organizing every year the undergraduate summer research program at the University of Chicago, also known as the REU. Until 2024, he has advised more than 60 doctoral students, many of whom have held tenured positions in prestigious universities all over the world. Prof. May has made a significant contribution to the development of algebraic topology in China, especially in educating and influencing a younger generation of Chinese algebraic topologists.
## 讲座简介
Equivariant multiplicative infinite loop space theory is interesting, but hard. I will describe definitions in terms of symmetric groups which promise to give an easy new way to build the theory. As I shall describe, the main obstruction to making the new theory rigorous is the elementary categorical combinatorics of symmetric groups.
邵峰院士累计发表SCI论文百余篇，总被引约6万次，H指数达76。其成果获未来科学大奖、William B. Coley基础与肿瘤免疫学杰出研究奖、HHMI国际青年科学家奖、美国蛋白质学会Irving Sigal青年科学家奖等重要奖项。现为中国科学院院士、德国国家科学院（Sciences Leopoldina）院士、欧洲分子生物学组织（EMBO）外籍会士、美国微生物科学院会士及中国医学科学院学部委员。
## 讲座简介
经典和非经典炎症小体通过切割gasdermin D (GSDMD)来诱导焦亡。虽然caspase-1加工IL-1β和IL-18使其成熟，但迄今尚未明确发现caspase-4/5/11针对的细胞因子靶标。本研究表明，活化的人caspase-4能够在体外以及细菌感染过程中（主要发生在上皮细胞中）直接且高效地加工IL-18，而小鼠的caspase-11则不具备这一功能。caspase-4/前体IL-18复合物的晶体结构揭示了一种二元底物识别机制，其中包括一个独特的外部位，该位点能结合由前肽和切割位点后序列共同形成的特定结构。caspase-11在结构上的偏差解释了其无法靶向前体IL-18的原因，而通过合理设计的突变则可以恢复这一功能。我们还发现，在脑血管内皮细胞中，由caspase-4/11激活的GSDMD（而非TLR4诱导的细胞因子）介导了血脑屏障（BBB）在应对循环中的LPS或LPS诱导的败血症时的破坏。电子显微镜观察到受损BBB的超微结构变化，包括焦亡的内皮细胞。将活性GSDMD导入脑血管内皮细胞能够绕过LPS刺激，从而打开BBB。在CASPH4人源化小鼠中，克雷伯氏肺炎杆菌感染导致BBB破坏，而这种破坏可以被在脑血管内皮细胞中表达的GSDMD中和纳米抗体所阻断。这些发现共同改变了我们对于非经典炎症小体介导的抗菌防御和败血症的认识。最后，我将讨论焦亡在激发肿瘤免疫中的作用。具体来说，细胞毒性淋巴细胞通过焦亡杀死GSDMB阳性细胞，这一过程由颗粒酶A对GSDMB的切割介导。IFN-γ上调GSDMB的表达，并促进包括CAR-T/TCR-T细胞介导在内的癌细胞焦亡。
# 《SUSTech Lecture Series 第396期》周孟初 教授：推动知识蒸馏技术发展的多学科方法
* 题目: 推动知识蒸馏技术发展的多学科方法
* 主讲人：周孟初 教授 @ 新泽西理工学院电气与计算机工程系
* 时间：2025年3月19日 16:00-17:00
* 地点：工学院南楼424会议室
## 主讲人简介
周孟初教授于1983年获得南京理工大学控制工程学士学位，1986年获得北京理工大学自动控制硕士学位，1990年获得伦斯勒理工学院计算机与系统工程博士学位。1990年，他加入新泽西理工学院电气与计算机工程系，现为杰出教授。他的研究领域包括智能自动化、机器人、Petri网、物联网、边缘/云计算、人工智能和大数据分析。他发表了1300多篇学术成果，包括17本书籍、900多篇期刊论文（包括700多篇IEEE Transactions论文）、31项专利和32本书籍章节。曾获美国新泽西理工学院杰出研究奖和奖章、美国洪堡基金会颁发的美国资深科学家洪堡研究奖、IEEE系统、人与控制论学会颁发的Franklin V. Taylor纪念奖和Norbert Wiener奖、新泽西州研究与发展委员会颁发的爱迪生专利奖。他是美国华人科学技术协会终身会员，并于1999年担任该协会主席。他是美国国家发明家科学院（NAI）院士，IEEE、国际自动控制联合会(IFAC)、美国科学促进会(AAAS)、中国自动化学会(CAA)的会士。
Magnons, the quanta of spin waves, are collective excitations of electron spins in magnetic materials, which do not rely on charge transport, and can thus avoid Joule heating in information processing, making them potential candidates for next-generation low-power spintronic devices. Magnonics [1] conventionally study spin waves in ferromagnetic (e.g., CoFeB) and ferrimagnetic (e.g., YIG) materials. Recently, the study of antiferromagnetic (AFM) spin waves has seen a surge of interests [2]. Hematite (α-Fe₂O₃) is one of the materials where the Dzyaloshinskii-Moriya interaction was first discovered, and may potentially exhibits some unconventional magnetism [3]. Apart from the AFM resonance at THz [4], a low-frequency (~10 GHz) mode was reported in hematite with low magnetic damping comparable to that of YIG (10⁵) [5]. In this talk, I will introduce our observation of long-distance propagation of spin waves in hematite with a high group velocity of up to 22.5 km/s [6]. An exchange stiffness of 1.7 Å is deduced from its dispersion relation. Furthermore, we study the spin-wave propagation in hematite below the Morin temperature, i.e., in its easy-axis phase. We unexpectedly discover a nearly zero-frequency magnon mode, which is theoretically interpreted as gapless magnons within the AFM domain walls [7]. While ferromagnetic magnons are always right-handed, AFM magnons can carry both left-handed and right-handed chirality. Finally, we provide direct experimental observation of AFM magnon interference with alternating chirality, which enables the control over the sign of pure spin current in the antiferromagnetic insulator [8].
