Oceania
Embedding Knowledge Graph in Function Spaces
Teyou, Louis Mozart Kamdem, Demir, Caglar, Ngomo, Axel-Cyrille Ngonga
We introduce a novel embedding method diverging from conventional approaches by operating within function spaces of finite dimension rather than finite vector space, thus departing significantly from standard knowledge graph embedding techniques. Initially employing polynomial functions to compute embeddings, we progress to more intricate representations using neural networks with varying layer complexities. We argue that employing functions for embedding computation enhances expressiveness and allows for more degrees of freedom, enabling operations such as composition, derivatives and primitive of entities representation. Additionally, we meticulously outline the step-by-step construction of our approach and provide code for reproducibility, thereby facilitating further exploration and application in the field.
Lord Mayor releases AI-generated images of new Melbourne parks - only for terrified locals to spot dead bodies and mutants with extra limbs
The mayor of Australia's second biggest city's desperate attempt to get residents excited about dozens of potential new parks has been completely derailed by the use of creepy AI-generated concept images. Melbourne Lord Mayor Nick Reece took to social media on Sunday to share a series of AI-generated images of some of the parks he's promised to create if re-elected next month. Cr Reece has vowed to transform the CBD into the'Garden City' by opening 28 new parks if he returns to the top job. But the plan backfired after the AI images left residents more concerned than excited for the new greenery. The images showed a number of confusing errors, including two people laying on the ground metres away from young children playing, a man with two legs melded into one, and several extra arms, sparking a range of reactions from baffled Aussies.
Fears over Boeing's plan to create AI-controlled killer jets for US military - despite slew of scandals
Their proposed fleet of'un-crewed' killer aircraft, piloted by'artificial intelligence' and dubbed MQ-28 Ghost Bats, would number in the thousands for the US alone. 'Boeing's track record doesn't seem to indicate that it's necessarily the best one to implement this kind of thing,' as one former State Department official, Steven Feldstein, told DailyMail.com. Boeing's MQ-28 Ghost Bat is an unmanned drone piloted by'artificial intelligence' (AI). It is one of the several robotic fighter jets competing to become the Pentagon's killer AI drone fleet With roughly 53 cubic-feet of storage capacity within its nose for interchangeable payloads, Boeing's Ghost Bats could one day carry a variety of bombs and munitions including multiple tactical nuclear weapons. Currently, three prototypes of the Ghost Bat have been built and flight-tested in Australia for the Royal Australian Air Force (RAAF) with at least one of those delivered to United States for its own tests and integration trials.
Garmin Fenix 8 review: best adventure watch becomes smarter
The Fenix 8 is a landmark moment for Garmin. By adding voice control, an OLED screen and other niceties, it has merged its top Fenix and Epix adventure watch lines to better compete with increasingly advanced smartwatches from Apple, Samsung and other major players. The Guardian's journalism is independent. We will earn a commission if you buy something through an affiliate link. The Fenix has always been where Garmin debuts its technology and features first before trickling them down into other products, such as the popular Forerunner series.
Temporal Graph Memory Networks For Knowledge Tracing
Gad, Seif, Abdelfattah, Sherif, Abdelrahman, Ghodai
Tracing a student's knowledge growth given the past exercise answering is a vital objective in automatic tutoring systems to customize the learning experience. Yet, achieving this objective is a non-trivial task as it involves modeling the knowledge state across multiple knowledge components (KCs) while considering their temporal and relational dynamics during the learning process. Knowledge tracing methods have tackled this task by either modeling KCs' temporal dynamics using recurrent models or relational dynamics across KCs and questions using graph models. Albeit, there is a lack of methods that could learn joint embedding between relational and temporal dynamics of the task. Moreover, many methods that count for the impact of a student's forgetting behavior during the learning process use hand-crafted features, limiting their generalization on different scenarios. In this paper, we propose a novel method that jointly models the relational and temporal dynamics of the knowledge state using a deep temporal graph memory network. In addition, we propose a generic technique for representing a student's forgetting behavior using temporal decay constraints on the graph memory module. We demonstrate the effectiveness of our proposed method using multiple knowledge tracing benchmarks while comparing it to state-of-the-art methods.
Steward: Natural Language Web Automation
Recently, large language models (LLMs) have demonstrated exceptional capabilities in serving as the foundation for AI assistants. One emerging application of LLMs, navigating through websites and interacting with UI elements across various web pages, remains somewhat underexplored. We introduce Steward, a novel LLM-powered web automation tool designed to serve as a cost-effective, scalable, end-to-end solution for automating web interactions. Traditional browser automation frameworks like Selenium, Puppeteer, and Playwright are not scalable for extensive web interaction tasks, such as studying recommendation algorithms on platforms like YouTube and Twitter. These frameworks require manual coding of interactions, limiting their utility in large-scale or dynamic contexts. Steward addresses these limitations by integrating LLM capabilities with browser automation, allowing for natural language-driven interaction with websites. Steward operates by receiving natural language instructions and reactively planning and executing a sequence of actions on websites, looping until completion, making it a practical tool for developers and researchers to use. It achieves high efficiency, completing actions in 8.52 to 10.14 seconds at a cost of $0.028 per action or an average of $0.18 per task, which is further reduced to 4.8 seconds and $0.022 through a caching mechanism. It runs tasks on real websites with a 40% completion success rate. We discuss various design and implementation challenges, including state representation, action sequence selection, system responsiveness, detecting task completion, and caching implementation.
Mitigating Semantic Leakage in Cross-lingual Embeddings via Orthogonality Constraint
Ki, Dayeon, Park, Cheonbok, Kim, Hyunjoong
Accurately aligning contextual representations in cross-lingual sentence embeddings is key for effective parallel data mining. A common strategy for achieving this alignment involves disentangling semantics and language in sentence embeddings derived from multilingual pre-trained models. However, we discover that current disentangled representation learning methods suffer from semantic leakage - a term we introduce to describe when a substantial amount of language-specific information is unintentionally leaked into semantic representations. This hinders the effective disentanglement of semantic and language representations, making it difficult to retrieve embeddings that distinctively represent the meaning of the sentence. To address this challenge, we propose a novel training objective, ORthogonAlity Constraint LEarning (ORACLE), tailored to enforce orthogonality between semantic and language embeddings. ORACLE builds upon two components: intra-class clustering and inter-class separation. Through experiments on cross-lingual retrieval and semantic textual similarity tasks, we demonstrate that training with the ORACLE objective effectively reduces semantic leakage and enhances semantic alignment within the embedding space.
Mixing Data-driven and Geometric Models for Satellite Docking Port State Estimation using an RGB or Event Camera
Gentil, Cedric Le, Naylor, Jack, Munasinghe, Nuwan, Mehami, Jasprabhjit, Dai, Benny, Asavkin, Mikhail, Dansereau, Donald G., Vidal-Calleja, Teresa
In-orbit automated servicing is a promising path towards lowering the cost of satellite operations and reducing the amount of orbital debris. For this purpose, we present a pipeline for automated satellite docking port detection and state estimation using monocular vision data from standard RGB sensing or an event camera. Rather than taking snapshots of the environment, an event camera has independent pixels that asynchronously respond to light changes, offering advantages such as high dynamic range, low power consumption and latency, etc. This work focuses on satellite-agnostic operations (only a geometric knowledge of the actual port is required) using the recently released Lockheed Martin Mission Augmentation Port (LM-MAP) as the target. By leveraging shallow data-driven techniques to preprocess the incoming data to highlight the LM-MAP's reflective navigational aids and then using basic geometric models for state estimation, we present a lightweight and data-efficient pipeline that can be used independently with either RGB or event cameras. We demonstrate the soundness of the pipeline and perform a quantitative comparison of the two modalities based on data collected with a photometrically accurate test bench that includes a robotic arm to simulate the target satellite's uncontrolled motion.
MACeIP: A Multimodal Ambient Context-enriched Intelligence Platform in Smart Cities
Nguyen, Truong Thanh Hung, Nguyen, Phuc Truong Loc, Wachowicz, Monica, Cao, Hung
This paper presents a Multimodal Ambient Context-enriched Intelligence Platform (MACeIP) for Smart Cities, a comprehensive system designed to enhance urban management and citizen engagement. Our platform integrates advanced technologies, including Internet of Things (IoT) sensors, edge and cloud computing, and Multimodal AI, to create a responsive and intelligent urban ecosystem. Key components include Interactive Hubs for citizen interaction, an extensive IoT sensor network, intelligent public asset management, a pedestrian monitoring system, a City Planning Portal, and a Cloud Computing System. We demonstrate the prototype of MACeIP in several cities, focusing on Fredericton, New Brunswick. This work contributes to innovative city development by offering a scalable, efficient, and user-centric approach to urban intelligence and management.
DeepCloth-ROB$^2_{\text{QS}}$P&P: Towards a Robust Robot Deployment for Quasi-Static Pick-and-Place Cloth-Shaping Neural Controllers
Kadi, Halid Abdulrahim, Chandy, Jose Alex, Figueredo, Luis, Terzić, Kasim, Caleb-Solly, Praminda
The fidelity gap between simulation-trained vision-based data-driven cloth neural controllers and real-world operation impedes reliable deployment of methods from simulation into physical trials. Real-world grasping errors, such as misgrasping and multilayer grasping, degrade their performance; additionally, some fabrics made of synthetic material also tend to stick to the commonly employed Franka Emika Panda's original gripper. Different approaches adopted various strategies to resolve these problems, further complicating real-world comparison between state-of-the-art methods. We propose DeepCloth-ROB$^2_{\text{QS}}$P&P with a simulation-to-reality transfer strategy Towel-Sim2Real and a cloth grasping protocol to consider and mitigate these grasping errors for robustly deploying quasi-static pick-and-place neural controllers in cloth shaping and demonstrate its generalisability across different deep-learning methods, fabric contexts and robot platforms. Our approach allows us to compare multiple neural controllers in a real environment for the first time, offering valuable insights to the cloth manipulation community.