157 research outputs found

    Redesigning the Nantucket Town Website

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    To enhance the use of e-governance on Nantucket, the Town of Nantucket decided to redesign its town website. The Nantucket IT Department desired a website that allowed users to easily find information and was also easy for town officials to keep up to date. In order to help address both residents’ and town employees’ needs, the team conducted surveys and a series of department meetings, and also analyzed data from the previous Nantucket Town Website. The project resulted in a list of recommendations on the design, content, and functionalities of the new Nantucket Town Website

    Modular Robotic Arm

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    The following paper describes the process and results undertaken to create a modular robotic arm system. The intent of the project was to create a low cost modular robotic arms system with features seen in more expensive systems as such a product does not exist on the market today. By following a systems engineering approach, our team was able to develop a modular robotic joint in an attempt to fill this market gap

    Preference-grounded Token-level Guidance for Language Model Fine-tuning

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    Aligning language models (LMs) with preferences is an important problem in natural language generation. A key challenge is that preferences are typically provided at the sequence level while LM training and generation both occur at the token level. There is, therefore, a granularity mismatch between the preference and the LM training losses, which may complicate the learning problem. In this paper, we address this issue by developing an alternate training process, where we iterate between grounding the sequence-level preference into token-level training guidance, and improving the LM with the learned guidance. For guidance learning, we design a framework that extends the pairwise-preference learning in imitation learning to both variable-length LM generation and utilizing the preference among multiple generations. For LM training, based on the amount of supervised data, we present two minimalist learning objectives that utilize the learned guidance. In experiments, our method performs competitively on two distinct representative LM tasks -- discrete-prompt generation and text summarization

    An analytical modeling for high-velocity impacts on woven Kevlar composite laminates

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    In this paper, an analytical model, which based on energy balance, is built to study the process of high velocity impacts on woven Kevlar composite laminates by a cylindrical projectile. Four different mechanisms, such as laminate crushing, linear momentum transfer and tensile fiber failure, and shear plugging, is absorbed by the laminate while impacting. Then, simplification of the model is done to obtain the residual velocity and ballistic limit. The analytical results are validated with the results of experiment, and the perturbation analysis is done to analyze the reason of error

    A Comparative Study of Image Restoration Networks for General Backbone Network Design

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    Despite the significant progress made by deep models in various image restoration tasks, existing image restoration networks still face challenges in terms of task generality. An intuitive manifestation is that networks which excel in certain tasks often fail to deliver satisfactory results in others. To illustrate this point, we select five representative image restoration networks and conduct a comparative study on five classic image restoration tasks. First, we provide a detailed explanation of the characteristics of different image restoration tasks and backbone networks. Following this, we present the benchmark results and analyze the reasons behind the performance disparity of different models across various tasks. Drawing from this comparative study, we propose that a general image restoration backbone network needs to meet the functional requirements of diverse tasks. Based on this principle, we design a new general image restoration backbone network, X-Restormer. Extensive experiments demonstrate that X-Restormer possesses good task generality and achieves state-of-the-art performance across a variety of tasks

    FIRST: A Million-Entry Dataset for Text-Driven Fashion Synthesis and Design

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    Text-driven fashion synthesis and design is an extremely valuable part of artificial intelligence generative content(AIGC), which has the potential to propel a tremendous revolution in the traditional fashion industry. To advance the research on text-driven fashion synthesis and design, we introduce a new dataset comprising a million high-resolution fashion images with rich structured textual(FIRST) descriptions. In the FIRST, there is a wide range of attire categories and each image-paired textual description is organized at multiple hierarchical levels. Experiments on prevalent generative models trained over FISRT show the necessity of FIRST. We invite the community to further develop more intelligent fashion synthesis and design systems that make fashion design more creative and imaginative based on our dataset. The dataset will be released soon.Comment: 11 pages, 8 figure
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