Large Language Model
Sign of the Times: Evaluating the use of Large Language Models for Idiomaticity Detection
Phelps, Dylan, Pickard, Thomas, Mi, Maggie, Gow-Smith, Edward, Villavicencio, Aline
Despite the recent ubiquity of large language models and their high zero-shot prompted performance across a wide range of tasks, it is still not known how well they perform on tasks which require processing of potentially idiomatic language. In particular, how well do such models perform in comparison to encoder-only models fine-tuned specifically for idiomaticity tasks? In this work, we attempt to answer this question by looking at the performance of a range of LLMs (both local and software-as-a-service models) on three idiomaticity datasets: SemEval 2022 Task 2a, FLUTE, and MAGPIE. Overall, we find that whilst these models do give competitive performance, they do not match the results of fine-tuned task-specific models, even at the largest scales (e.g. for GPT-4). Nevertheless, we do see consistent performance improvements across model scale. Additionally, we investigate prompting approaches to improve performance, and discuss the practicalities of using LLMs for these tasks.
Intelligent Tutor: Leveraging ChatGPT and Microsoft Copilot Studio to Deliver a Generative AI Student Support and Feedback System within Teams
This study explores the integration of the ChatGPT API with GPT-4 model and Microsoft Copilot Studio on the Microsoft Teams platform to develop an intelligent tutoring system. Designed to provide instant support to students, the system dynamically adjusts educational content in response to the learners' progress and feedback. Utilizing advancements in natural language processing and machine learning, it interprets student inquiries, offers tailored feedback, and facilitates the educational journey. Initial implementation highlights the system's potential in boosting students' motivation and engagement, while equipping educators with critical insights into the learning process, thus promoting tailored educational experiences and enhancing instructional effectiveness.
Learning Reward for Robot Skills Using Large Language Models via Self-Alignment
Zeng, Yuwei, Mu, Yao, Shao, Lin
Learning reward functions remains the bottleneck to equip a robot with a broad repertoire of skills. Large Language Models (LLM) contain valuable task-related knowledge that can potentially aid in the learning of reward functions. However, the proposed reward function can be imprecise, thus ineffective which requires to be further grounded with environment information. We proposed a method to learn rewards more efficiently in the absence of humans. Our approach consists of two components: We first use the LLM to propose features and parameterization of the reward, then update the parameters through an iterative self-alignment process. In particular, the process minimizes the ranking inconsistency between the LLM and the learnt reward functions based on the execution feedback. The method was validated on 9 tasks across 2 simulation environments. It demonstrates a consistent improvement over training efficacy and efficiency, meanwhile consuming significantly fewer GPT tokens compared to the alternative mutation-based method.
Efficient LLM Jailbreak via Adaptive Dense-to-sparse Constrained Optimization
Hu, Kai, Yu, Weichen, Yao, Tianjun, Li, Xiang, Liu, Wenhe, Yu, Lijun, Li, Yining, Chen, Kai, Shen, Zhiqiang, Fredrikson, Matt
Recent advancements have allowed large language models (LLMs) to be employed across various sectors, such as content generation [15], programming support [13], and healthcare [7]. Nevertheless, LLMs can pose risks by possibly generating malicious content, including writing malware, guidance for making dangerous items, and leaking private information from their training data [18, 10]. As LLMs become more powerful and widely used, it becomes increasingly important to manage the risks associated with their misuse. In this context, the concept of red-teaming LLMs is introduced to test the reliability of their safety features [2, 17]. Consequently, the LLM jailbreak attack was developed to support the red-teaming process: by combining the jailbreak prompt with malicious questions (e.g., how to make explosives), it can mislead the aligned LLMs to circumvent the safety features and potentially produce responses that are harmful, discriminatory, violent, or sensitive. Recently, a number of automatic jailbreak attacks have been introduced. Generally, these can be categorized into two types: prompt-level jailbreaks [8, 11, 3] and token-level jailbreaks [18, 6, 9]. Prompt-level jailbreaks employ semantically meaningful deception to compromise LLMs.
Learning 3-Manifold Triangulations
Costantino, Francesco, He, Yang-Hui, Heyes, Elli, Hirst, Edward
Real 3-manifold triangulations can be uniquely represented by isomorphism signatures. Databases of these isomorphism signatures are generated for a variety of 3-manifolds and knot complements, using SnapPy and Regina, then these language-like inputs are used to train various machine learning architectures to differentiate the manifolds, as well as their Dehn surgeries, via their triangulations. Gradient saliency analysis then extracts key parts of this language-like encoding scheme from the trained models. The isomorphism signature databases are taken from the 3-manifolds' Pachner graphs, which are also generated in bulk for some selected manifolds of focus and for the subset of the SnapPy orientable cusped census with $<8$ initial tetrahedra. These Pachner graphs are further analysed through the lens of network science to identify new structure in the triangulation representation; in particular for the hyperbolic case, a relation between the length of the shortest geodesic (systole) and the size of the Pachner graph's ball is observed.
NIFTY Financial News Headlines Dataset
Saqur, Raeid, Kato, Ken, Vinden, Nicholas, Rudzicz, Frank
We introduce and make publicly available the NIFTY Financial News Headlines dataset, designed to facilitate and advance research in financial market forecasting using large language models (LLMs). This dataset comprises two distinct versions tailored for different modeling approaches: (i) NIFTY-LM, which targets supervised fine-tuning (SFT) of LLMs with an auto-regressive, causal language-modeling objective, and (ii) NIFTY-RL, formatted specifically for alignment methods (like reinforcement learning from human feedback (RLHF)) to align LLMs via rejection sampling and reward modeling. Each dataset version provides curated, high-quality data incorporating comprehensive metadata, market indices, and deduplicated financial news headlines systematically filtered and ranked to suit modern LLM frameworks. We also include experiments demonstrating some applications of the dataset in tasks like stock price movement and the role of LLM embeddings in information acquisition/richness. The NIFTY dataset along with utilities (like truncating prompt's context length systematically) are available on Hugging Face at https://huggingface.co/datasets/raeidsaqur/NIFTY.
Engadget Podcast: The good, the bad and the AI of Google I/O 2024
We just wrapped up coverage on Google's I/O 2024 keynote, and we're just so tired of hearing about AI. While some of the announcements seem potentially useful, it's still tough to tell if the move towards AI will actually help consumers, or if Google is just fighting to stay ahead of OpenAI. Listen below or subscribe on your podcast app of choice. If you've got suggestions or topics you'd like covered on the show, be sure to email us or drop a note in the comments! And be sure to check out our other podcast, Engadget News!
Google Gemini can power a virtual AI teammate with its own Workspace account
Google's Gemini AI systems can do a lot, judging by today's I/O keynote. That includes the option to set up a virtual teammate with its own Workspace account. You can configure the teammate to carry out specific tasks, such as to monitor and track projects, organize information, provide context, pinpoint trends after analyzing data and to play a role in team collaboration. In Google Chat, the teammate can join all relevant rooms and you can ask it questions based on all the conversation histories, Gmail threads and anything else it has access to. It can tell team members whether their projects are approved or if there might be an issue based on conflicting messages. It seems like the virtual teammate was just a tech demo for now, however.
OpenAI's new GPT-4o model offers promise of improved smartphone assistants
In the year and a half since the launch of ChatGPT, one nagging question has only got more pressing: if AI can do this, why is my phone's assistant still so bad? On Monday, the gulf grew larger still, as OpenAI announced a new model called GPT-4o – the'o' stands for Omni – which gives the chatbot new abilities to understand and create audio, video, and still images. The system is uncanny to behold. It can engage in prolonged conversations about the world seen through a camera lens, carry out live translation between two different languages, and even laugh at appropriate points. The shine will inevitably wear off after users find the shortcomings in the system, but its creators are more confident than ever.
Zero-Shot Transfer of Neural ODEs
Ingebrand, Tyler, Thorpe, Adam J., Topcu, Ufuk
Autonomous systems often encounter environments and scenarios beyond the scope of their training data, which underscores a critical challenge: the need to generalize and adapt to unseen scenarios in real time. This challenge necessitates new mathematical and algorithmic tools that enable adaptation and zero-shot transfer. To this end, we leverage the theory of function encoders, which enables zero-shot transfer by combining the flexibility of neural networks with the mathematical principles of Hilbert spaces. Using this theory, we first present a method for learning a space of dynamics spanned by a set of neural ODE basis functions. After training, the proposed approach can rapidly identify dynamics in the learned space using an efficient inner product calculation. Critically, this calculation requires no gradient calculations or retraining during the online phase. This method enables zero-shot transfer for autonomous systems at runtime and opens the door for a new class of adaptable control algorithms. We demonstrate state-of-the-art system modeling accuracy for two MuJoCo robot environments and show that the learned models can be used for more efficient MPC control of a quadrotor.