148 research outputs found
A Comprehensive Review and Systematic Analysis of Artificial Intelligence Regulation Policies
Due to the cultural and governance differences of countries around the world,
there currently exists a wide spectrum of AI regulation policy proposals that
have created a chaos in the global AI regulatory space. Properly regulating AI
technologies is extremely challenging, as it requires a delicate balance
between legal restrictions and technological developments. In this article, we
first present a comprehensive review of AI regulation proposals from different
geographical locations and cultural backgrounds. Then, drawing from historical
lessons, we develop a framework to facilitate a thorough analysis of AI
regulation proposals. Finally, we perform a systematic analysis of these AI
regulation proposals to understand how each proposal may fail. This study,
containing historical lessons and analysis methods, aims to help governing
bodies untangling the AI regulatory chaos through a divide-and-conquer manner
Stability Analysis of ITER Side Correction Coils
AbstractThe stability of the Side Correction Coils (SCC) cable-in-conduit conductors (CICC) for the International Thermonuclear Experimental Reactor (ITER) has been analyzed by the formulas and the code Gandalf. This paper describes the 1-dimensional mathematical code Gandalf, uses the code to simulate the quench and the recovery status of ITER SCC CICC, discusses the dependence of the stability margin on various operating parameters including operating current, operating temperature and mass flow rate, and analyzes the differences between the simulated values and the calculated values. The ITER SCC's quenching is also simulated to investigate its temperature distribution and temperature margin. Dependence of temperature margin on magnetic fields and operating temperature has been researched. The studies of ITER SCC provide a basis for the stable operation and optimization design of SCC CICC
Detecting GPC3-Expressing Hepatocellular Carcinoma with L5 Peptide-Guided Pretargeting Approach: An In Vitro MRI Experiment
Background and Aim: Glypican-3 (GPC3) is a novel molecular target for hepatocellular carcinoma (HCC). This study investigated the potential of an L5 peptide-guided pretargeting approach to identify GPC3-expressing HCC cells using ultra-small super-paramagnetic iron oxide (USPIO) as the MRI probe.Methods: Immunofluorescence with carboxyfluorescein (FAM)-labeled L5 peptide was performed in HepG2 and HL-7702 cells. Polyethylene glycol-modified ultrasmall superparamagnetic iron oxide (PEG-USPIO) and its conjugates with streptavidin (SA-PEG-USPIO) were synthesized, and hydrodynamic diameters, zeta potential, T2 relaxivity, and cytotoxicity were measured. MR T2-weighted imaging of HepG2 was performed to observe signal changes in the pretargeting group, which was first incubated with biotinylated L5 peptide and then with SA-PEG-USPIO. Prussian blue staining of cells was used to assess iron deposition.Results: Immunofluorescence assays showed high specificity of L5 peptide for GPC3. SA-PEG-USPIO nanoparticles had ≈36 nm hydrodynamic diameter, low toxicity, negative charge and high T2 relaxivity. MR imaging revealed that a significant negative enhancement was only observed in HepG2 cells from the pretargeting group, which also showed significant iron deposition with Prussian blue staining.Conclusion: MR imaging with USPIO as the probe has potential to identify GPC3-expressing HCC through L5 peptide-guided pretargeting approach
Assessment of Regional Shallow Landslide Stability Based on Airborne Laser Scanning Data in the Yingxiu Area of Sichuan Province (China)
Gaussian Control with Hierarchical Semantic Graphs in 3D Human Recovery
Although 3D Gaussian Splatting (3DGS) has recently made progress in 3D human
reconstruction, it primarily relies on 2D pixel-level supervision, overlooking
the geometric complexity and topological relationships of different body parts.
To address this gap, we introduce the Hierarchical Graph Human Gaussian Control
(HUGS) framework for achieving high-fidelity 3D human reconstruction. Our
approach involves leveraging explicitly semantic priors of body parts to ensure
the consistency of geometric topology, thereby enabling the capture of the
complex geometrical and topological associations among body parts.
Additionally, we disentangle high-frequency features from global human features
to refine surface details in body parts. Extensive experiments demonstrate that
our method exhibits superior performance in human body reconstruction,
particularly in enhancing surface details and accurately reconstructing body
part junctions. Codes are available at https://wanghongsheng01.github.io/HUGS/
Dilemma of the Artificial Intelligence Regulatory Landscape
As a startup company in the autonomous driving space, we have undergone four
years of painful experiences dealing with a broad spectrum of regulatory
requirements. Compared to the software industry norm, which spends 13% of their
overall budget on compliances, we were forced to spend 42% of our budget on
compliances. Our situation is not alone and, in a way, reflects the dilemma of
the artificial intelligence (AI) regulatory landscape. The root cause is the
lack of AI expertise in the legislative and executive branches, leading to a
lack of standardization for the industry to follow. In this article, we share
our first-hand experiences and advocate for the establishment of an FDA-like
agency to regulate AI properly.Comment: Communications of the AC
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