Government
Learning topological states from randomized measurements using variational tensor network tomography
Teng, Yanting, Samajdar, Rhine, Van Kirk, Katherine, Wilde, Frederik, Sachdev, Subir, Eisert, Jens, Sweke, Ryan, Najafi, Khadijeh
Learning faithful representations of quantum states is crucial to fully characterizing the variety of many-body states created on quantum processors. While various tomographic methods such as classical shadow and MPS tomography have shown promise in characterizing a wide class of quantum states, they face unique limitations in detecting topologically ordered two-dimensional states. To address this problem, we implement and study a heuristic tomographic method that combines variational optimization on tensor networks with randomized measurement techniques. Using this approach, we demonstrate its ability to learn the ground state of the surface code Hamiltonian as well as an experimentally realizable quantum spin liquid state. In particular, we perform numerical experiments using MPS ans\"atze and systematically investigate the sample complexity required to achieve high fidelities for systems of sizes up to $48$ qubits. In addition, we provide theoretical insights into the scaling of our learning algorithm by analyzing the statistical properties of maximum likelihood estimation. Notably, our method is sample-efficient and experimentally friendly, only requiring snapshots of the quantum state measured randomly in the $X$ or $Z$ bases. Using this subset of measurements, our approach can effectively learn any real pure states represented by tensor networks, and we rigorously prove that random-$XZ$ measurements are tomographically complete for such states.
Top-secret US aquatic military vessel spotted on Google maps
A top-secret submarine prototype has been identified on Google Maps images by sharp-eyed users who spotted its futuristic design and quickly spread the word, the New York Post reported. Photos showing the "Manta Ray" autonomous vessel apparently docked at Port Hueneme naval base in California went viral Sunday as military and aeronautical buffs gawked at the rare glimpses. The submarine is named after the marine creature due to its physical similarity and ability to lurk for extended periods deep underwater. The "Manta Ray" aquatic defense vessel was spotted docked at Port Hueneme on Google Maps. The brainchild of Northrop Grumman, the vessel is part of a wider U.S. Navy project to augment the nation's long-range underwater fleet of unmanned vehicles.
The Download: the future of music AI, and climate tech funding
Just two days later, the Financial Times reported that YouTube is pursuing a comparatively above-board approach. Rather than training AI music models on secret data sets, the company is reportedly offering unspecified lump sums to top record labels in exchange for licenses to use their catalogs for training data. While the ground here is moving fast, none of these moves should be all that surprising: litigious training-data battles have become something like a rite of passage for generative AI companies. The trend has led many to pay for licensing deals while the cases unfold. But the stakes of a fight over training data for AI music are different--and arguably even higher.
Russia suffers setbacks as Ukraine braces for tough month on battlefield
Russia has suffered multiple diplomatic and judicial blows during the past week over its war on Ukraine, despite President Vladimir Putin's high-profile visits to North Korea and Vietnam and Moscow's claims that it is founding a "Eurasian security architecture that will replace the discredited Euro-Atlantic security arrangements". Putin signed a "comprehensive strategic treaty" with North Korean leader Kim Jong Un on June 19, incorporating what he said was a defensive alliance. South Korea's government condemned the agreement. Its national security adviser, Chang Ho-jin, declared that Seoul would reconsider lifting a ban on arms supplies directly to Ukraine. Until now, South Korea has only sold weapons to Ukraine's allies.
Discovering hidden physics using ML-based multimodal super-resolution measurement and its application to fusion plasmas
Jalalvand, Azarakhsh, Kim, SangKyeun, Seo, Jaemin, Hu, Qiming, Curie, Max, Steiner, Peter, Nelson, Andrew Oakleigh, Na, Yong-Su, Kolemen, Egemen
A non-linear complex system governed by multi-spatial and multi-temporal physics scales cannot be fully understood with a single diagnostic, as each provides only a partial view and much information is lost during data extraction. Combining multiple diagnostics also results in imperfect projections of the system's physics. By identifying hidden inter-correlations between diagnostics, we can leverage mutual support to fill in these gaps, but uncovering these inter-correlations analytically is too complex. We introduce a groundbreaking machine learning methodology to address this issue. Our multimodal approach generates super resolution data encompassing multiple physics phenomena, capturing detailed structural evolution and responses to perturbations previously unobservable. This methodology addresses a critical problem in fusion plasmas: the Edge Localized Mode (ELM), a plasma instability that can severely damage reactor walls. One method to stabilize ELM is using resonant magnetic perturbation to trigger magnetic islands. However, low spatial and temporal resolution of measurements limits the analysis of these magnetic islands due to their small size, rapid dynamics, and complex interactions within the plasma. With super-resolution diagnostics, we can experimentally verify theoretical models of magnetic islands for the first time, providing unprecedented insights into their role in ELM stabilization. This advancement aids in developing effective ELM suppression strategies for future fusion reactors like ITER and has broader applications, potentially revolutionizing diagnostics in fields such as astronomy, astrophysics, and medical imaging.
"My Kind of Woman": Analysing Gender Stereotypes in AI through The Averageness Theory and EU Law
Doh, Miriam, Karagianni, and Anastasia
This study delves into gender classification systems, shedding light on the interaction between social stereotypes and algorithmic determinations. Drawing on the "averageness theory," which suggests a relationship between a face's attractiveness and the human ability to ascertain its gender, we explore the potential propagation of human bias into artificial intelligence (AI) systems. Utilising the AI model Stable Diffusion 2.1, we have created a dataset containing various connotations of attractiveness to test whether the correlation between attractiveness and accuracy in gender classification observed in human cognition persists within AI. Our findings indicate that akin to human dynamics, AI systems exhibit variations in gender classification accuracy based on attractiveness, mirroring social prejudices and stereotypes in their algorithmic decisions. This discovery underscores the critical need to consider the impacts of human perceptions on data collection and highlights the necessity for a multidisciplinary and intersectional approach to AI development and AI data training. By incorporating cognitive psychology and feminist legal theory, we examine how data used for AI training can foster gender diversity and fairness under the scope of the AI Act and GDPR, reaffirming how psychological and feminist legal theories can offer valuable insights for ensuring the protection of gender equality and non-discrimination in AI systems.
DIM: Dynamic Integration of Multimodal Entity Linking with Large Language Model
Song, Shezheng, Li, Shasha, Yu, Jie, Zhao, Shan, Li, Xiaopeng, Ma, Jun, Liu, Xiaodong, Li, Zhuo, Mao, Xiaoguang
Our study delves into Multimodal Entity Linking, aligning the mention in multimodal information with entities in knowledge base. Existing methods are still facing challenges like ambiguous entity representations and limited image information utilization. Thus, we propose dynamic entity extraction using ChatGPT, which dynamically extracts entities and enhances datasets. We also propose a method: Dynamically Integrate Multimodal information with knowledge base (DIM), employing the capability of the Large Language Model (LLM) for visual understanding. The LLM, such as BLIP-2, extracts information relevant to entities in the image, which can facilitate improved extraction of entity features and linking them with the dynamic entity representations provided by ChatGPT. The experiments demonstrate that our proposed DIM method outperforms the majority of existing methods on the three original datasets, and achieves state-of-the-art (SOTA) on the dynamically enhanced datasets (Wiki+, Rich+, Diverse+).
Building Understandable Messaging for Policy and Evidence Review (BUMPER) with AI
Rosenfeld, Katherine A., Sonnewald, Maike, Jindal, Sonia J., McCarthy, Kevin A., Proctor, Joshua L.
We introduce a framework for the use of large language models (LLMs) in Building Understandable Messaging for Policy and Evidence Review (BUMPER). LLMs are proving capable of providing interfaces for understanding and synthesizing large databases of diverse media. This presents an exciting opportunity to supercharge the translation of scientific evidence into policy and action, thereby improving livelihoods around the world. However, these models also pose challenges related to access, trust-worthiness, and accountability. The BUMPER framework is built atop a scientific knowledge base (e.g., documentation, code, survey data) by the same scientists (e.g., individual contributor, lab, consortium). We focus on a solution that builds trustworthiness through transparency, scope-limiting, explicit-checks, and uncertainty measures. LLMs are rapidly being adopted and consequences are poorly understood. The framework addresses open questions regarding the reliability of LLMs and their use in high-stakes applications. We provide a worked example in health policy for a model designed to inform measles control programs. We argue that this framework can facilitate accessibility of and confidence in scientific evidence for policymakers, drive a focus on policy-relevance and translatability for researchers, and ultimately increase and accelerate the impact of scientific knowledge used for policy decisions.
Accelerating Complex Disease Treatment through Network Medicine and GenAI: A Case Study on Drug Repurposing for Breast Cancer
Hamed, Ahmed Abdeen, Fandy, Tamer E.
The objective of this research is to introduce a network specialized in predicting drugs that can be repurposed by investigating real-world evidence sources, such as clinical trials and biomedical literature. Specifically, it aims to generate drug combination therapies for complex diseases (e.g., cancer, Alzheimer's). We present a multilayered network medicine approach, empowered by a highly configured ChatGPT prompt engineering system, which is constructed on the fly to extract drug mentions in clinical trials. Additionally, we introduce a novel algorithm that connects real-world evidence with disease-specific signaling pathways (e.g., KEGG database). This sheds light on the repurposability of drugs if they are found to bind with one or more protein constituents of a signaling pathway. To demonstrate, we instantiated the framework for breast cancer and found that, out of 46 breast cancer signaling pathways, the framework identified 38 pathways that were covered by at least two drugs. This evidence signals the potential for combining those drugs. Specifically, the most covered signaling pathway, ID hsa:2064, was covered by 108 drugs, some of which can be combined. Conversely, the signaling pathway ID hsa:1499 was covered by only two drugs, indicating a significant gap for further research. Our network medicine framework, empowered by GenAI, shows promise in identifying drug combinations with a high degree of specificity, knowing the exact signaling pathways and proteins that serve as targets. It is noteworthy that ChatGPT successfully accelerated the process of identifying drug mentions in clinical trials, though further investigations are required to determine the relationships among the drug mentions.
A look under the hood of the Interactive Deep Learning Enterprise (No-IDLE)
Sonntag, Daniel, Barz, Michael, Gouvêa, Thiago
Although it is very unlikely that machines will exhibit broadly-applicable intelligence comparable to or exceeding that of humans in the next 30 years (strong AI), it is to be expected that machines will reach and exceed human performance on more and more applied tasks. To develop the positive aspects of AI, manage its risks and challenges, and ensure that everyone has the opportunity to help in building an AI-enhanced society and to participate in its benefits, in this project, human intelligence and machine learning (ML) take the centre stage: Interactive Machine Learning (IML) is the design and implementation of algorithms and intelligent user interface frameworks that facilitate ML with the help of human interaction. Our focus is to improve the interaction between humans and machines, by leveraging state-of-the-art humancomputer interaction (HCI) approaches, as well as solutions that involve state-of-the-art ML techniques. In this project, we focus on Interactive Deep Learning (IDL): deep learning (DL) approaches for IML. We want computers to learn from humans by interacting with them in natural language for example and by observing them.