89 research outputs found

    Interpretable and Steerable Sequence Learning via Prototypes

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    One of the major challenges in machine learning nowadays is to provide predictions with not only high accuracy but also user-friendly explanations. Although in recent years we have witnessed increasingly popular use of deep neural networks for sequence modeling, it is still challenging to explain the rationales behind the model outputs, which is essential for building trust and supporting the domain experts to validate, critique and refine the model. We propose ProSeNet, an interpretable and steerable deep sequence model with natural explanations derived from case-based reasoning. The prediction is obtained by comparing the inputs to a few prototypes, which are exemplar cases in the problem domain. For better interpretability, we define several criteria for constructing the prototypes, including simplicity, diversity, and sparsity and propose the learning objective and the optimization procedure. ProSeNet also provides a user-friendly approach to model steering: domain experts without any knowledge on the underlying model or parameters can easily incorporate their intuition and experience by manually refining the prototypes. We conduct experiments on a wide range of real-world applications, including predictive diagnostics for automobiles, ECG, and protein sequence classification and sentiment analysis on texts. The result shows that ProSeNet can achieve accuracy on par with state-of-the-art deep learning models. We also evaluate the interpretability of the results with concrete case studies. Finally, through user study on Amazon Mechanical Turk (MTurk), we demonstrate that the model selects high-quality prototypes which align well with human knowledge and can be interactively refined for better interpretability without loss of performance.Comment: Accepted as a full paper at KDD 2019 on May 8, 201

    Exile Vol. XLII No. 1

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    40th Year Title Page by Sakura Yamamoto \u2797 i Epigraph by Ezra Pound ii Table of Contents iii / Untitled (artwork) by Gretchen Hambly \u2796 iv Breughel Again, Brussels by Adrienne Fair \u2796 1 for play with whitman by alex e blazer \u2797 4 Saeta Sunday by Carl Boon \u2796 5 An Abbreviated Life by Mike Westmoreland 6 Anthem of Governor\u27s Bay by Jamey Hein \u2796 7-10 Time is everywhere, yet nowhere (artwork) by Susanne Ducker \u2796 11 Crosses by Liz Bolyard \u2796 12 Raccoons at the Cats\u27 Food by Jennifer Rudgers \u2796 13-14 Father Federico by Trish Klei \u2797 15 Dream Poem I by Colin Bossen \u2798 16 Virgin Mary in Kentucky by Amy Ard \u2796 17 the jig is up by alex e blazer \u2797 18-20 Visiting Uncle Ernie by Liz Bolyard \u2796 21-22 A Capuchin Monk by Linda Fuller-Smith 23 Sunday, October 15, 1995 by Carl Boon \u2796 24 Old Man and the Marriage Party by Trish Klei \u2797 25 Untitled (artwork) by Gretchen Hambly \u2796 26 Cowboy Up by J. Murdoch Be Matheson \u2796 27-34 Fragments by Colin Bossen \u2798 35 meditation (artwork) by alex e blazer \u2797 36 Palazzo Rezzonico by Linda Fuller-Smith 37 A Poem About The Photographic Imprint I Would Leave If A Nuclear Bomb Hit Nearby As I Took Out The Trash One Night by Trish Klei \u2797 38 The Crazies I\u27ve Called by Julie Johnston \u2796 39-46 Contributors\u27 Notes 47-48 Editorial Board 49 Editorial decisions are shared equally among the Editorial Board. -49 Cover art by alex emmons -4

    Exile Vol. XLI

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    39th Year Cover Art by Elisa Gargarelle \u2795 (quote from J.D. Salinger\u27s Catcher in the Rye) untitled by Aileen Jones \u2797 i Girl by Colin Bossen \u2798 1 sun by Alex Blazer \u2796 2 Shifting by Alex Blazer \u2796 2 The Fish by Sarah Ramsey \u2795 3 New Woman by Lisa Stillman \u2795 4 Why by Lelei Jennings \u2795 5 Camel Cafe by Jeremy Aufrance \u2795 5 Jenny by Lizzy Loud \u2795 6 Beautiful Dreamer by Melissa Bostrom \u2796 7 Rising by Lizzy Loud \u2795 12 Pinsetter by Jeremy Aufrance \u2795 13 A Greater Distance by Jeff Boon \u2795 14 Shiho by Jeff Boon \u2795 15 Sub-stance by Alex Blazer \u2796 15 Sisters by Gretchen Hambley \u2796 16 Anne Sexton by Allison Lemieux \u2796 17 The Holy Grail... by Ed Shim \u2795 17 untitled by Liz Bolyard \u2796 18 23 by Keith Chapman \u2795 18 Bang, Zoom! by Victoria Lyall \u2796 19 Gabe and Me by Heather Trabert \u2797 20 Tornado Summer by Liz Bolyard \u2796 21 Nude by Elise Gargarella \u2795 21 Why I can\u27t tell short stories by Colin Bossen \u2798 22 america by Lynn Tramonte \u2798 24 Upon Being Asked... by Matt Makman \u2796 24 Being Azra by Lynn Tramonte \u2798 25 Mystic Truths by Adrienne Binni \u2795 27 King\u27s Court by Elisha Gargarella \u2795 27 Incense by Erin Lott \u2796 28 Sunday Morning... by Lisa Stillman \u2795 33 untitled by Elisa Gargarella \u2795 33 Quien no ha visto... by Adrienne Binni \u2795 34 The Space Between Us by Allison Lemieux \u2795 35 searching for the Bermuda... by Victoria Lyall \u2796 35 untitled by Man Chhoa \u2796 36 The Hunted by J. Murdoch Matheson \u2796 37 Editorial decisions are shared equally among the editorial board. -4

    Development and Evaluation of Sensor Concepts for Ageless Aerospace Vehicles: Report 5 - Phase 2 Implementation of the Concept Demonstrator

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    This report describes the second phase of the implementation of the Concept Demonstrator experimental test-bed system containing sensors and processing hardware distributed throughout the structure, which uses multi-agent algorithms to characterize impacts and determine a suitable response to these impacts. This report expands and adds to the report of the first phase implementation. The current status of the system hardware is that all 192 physical cells (32 on each of the 6 hexagonal prism faces) have been constructed, although only four of these presently contain data-acquisition sub-modules to allow them to acquire sensor data. Impact detection.. location and severity have been successfully demonstrated. The software modules for simulating cells and controlling the test-bed are fully operational. although additional functionality will be added over time. The visualization workstation displays additional diagnostic information about the array of cells (both real and simulated) and additional damage information. Local agent algorithms have been developed that demonstrate emergent behavior of the complex multi-agent system, through the formation of impact damage boundaries and impact networks. The system has been shown to operate well for multiple impacts. and to demonstrate robust reconfiguration in the presence of damage to numbers of cells

    Development and Evaluation of Sensor Concepts for Ageless Aerospace Vehicles: Report 4 - Phase 1 Implementation of the Concept Demonstrator

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    This report describes the first phase of the implementation of the Concept Demonstrator. The Concept Demonstrator system is a powerful and flexible experimental test-bed platform for developing sensors, communications systems, and multi-agent based algorithms for an intelligent vehicle health monitoring system for deployment in aerospace vehicles. The Concept Demonstrator contains sensors and processing hardware distributed throughout the structure, and uses multi-agent algorithms to characterize impacts and determine an appropriate response to these impacts

    The CUAVA-1 CubeSat—A Pathfinder Satellite for Remote Sensing and Earth Observation

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    In this paper we report a 3U CubeSat named CUAVA-1 designed by the ARC Training Centre for CubeSats, UAVs, and Their Applications (CUAVA). CUAVA, funded by the Australian Research Council, aims to train students, develop new instruments and technology to solve crucial problems, and help develop a world-class Australian industry in CubeSats, UAVs, and related products. The CUAVA-1 project is the Centre’s first CubeSat mission, following on from the 2 Australian satellites INSPIRE-2 and UNSW-EC0 CubeSats that launched in 2017. The mission is designed to serve as a precursor for a series of Earth observations missions and to demonstrate new technologies developed by our partners. We also intend to use the satellite to provide students hands-on experiences and to gain experience for our engineering, science and industry teams for future, more complex, missions

    Derivation of Xeno-Free and GMP-Grade Human Embryonic Stem Cells – Platforms for Future Clinical Applications

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    Clinically compliant human embryonic stem cells (hESCs) should be developed in adherence to ethical standards, without risk of contamination by adventitious agents. Here we developed for the first time animal-component free and good manufacturing practice (GMP)-compliant hESCs. After vendor and raw material qualification, we derived xeno-free, GMP-grade feeders from umbilical cord tissue, and utilized them within a novel, xeno-free hESC culture system. We derived and characterized three hESC lines in adherence to regulations for embryo procurement, and good tissue, manufacturing and laboratory practices. To minimize freezing and thawing, we continuously expanded the lines from initial outgrowths and samples were cryopreserved as early stocks and banks. Batch release criteria included DNA-fingerprinting and HLA-typing for identity, characterization of pluripotency-associated marker expression, proliferation, karyotyping and differentiation in-vitro and in-vivo. These hESCs may be valuable for regenerative therapy. The ethical, scientific and regulatory methodology presented here may serve for development of additional clinical-grade hESCs

    The Australasian Resuscitation In Sepsis Evaluation : fluids or vasopressors in emergency department sepsis (ARISE FLUIDS), a multi-centre observational study describing current practice in Australia and New Zealand

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    Objectives: To describe haemodynamic resuscitation practices in ED patients with suspected sepsis and hypotension. Methods: This was a prospective, multicentre, observational study conducted in 70 hospitals in Australia and New Zealand between September 2018 and January 2019. Consecutive adults presenting to the ED during a 30-day period at each site, with suspected sepsis and hypotension (systolic blood pressure <100 mmHg) despite at least 1000 mL fluid resuscitation, were eligible. Data included baseline demographics, clinical and laboratory variables and intravenous fluid volume administered, vasopressor administration at baseline and 6- and 24-h post-enrolment, time to antimicrobial administration, intensive care admission, organ support and in-hospital mortality. Results: A total of 4477 patients were screened and 591 were included with a mean (standard deviation) age of 62 (19) years, Acute Physiology and Chronic Health Evaluation II score 15.2 (6.6) and a median (interquartile range) systolic blood pressure of 94 mmHg (87–100). Median time to first intravenous antimicrobials was 77 min (42–148). A vasopressor infusion was commenced within 24 h in 177 (30.2%) patients, with noradrenaline the most frequently used (n = 138, 78%). A median of 2000 mL (1500–3000) of intravenous fluids was administered prior to commencing vasopressors. The total volume of fluid administered from pre-enrolment to 24 h was 4200 mL (3000–5661), with a range from 1000 to 12 200 mL. Two hundred and eighteen patients (37.1%) were admitted to an intensive care unit. Overall in-hospital mortality was 6.2% (95% confidence interval 4.4–8.5%). Conclusion: Current resuscitation practice in patients with sepsis and hypotension varies widely and occupies the spectrum between a restricted volume/earlier vasopressor and liberal fluid/later vasopressor strategy
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