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Logic Locking at the Frontiers of Machine Learning: A Survey on Developments and Opportunities

Jul 21, 2021
Dominik Sisejkovic, Lennart M. Reimann, Elmira Moussavi, Farhad Merchant, Rainer Leupers

In the past decade, a lot of progress has been made in the design and evaluation of logic locking; a premier technique to safeguard the integrity of integrated circuits throughout the electronics supply chain. However, the widespread proliferation of machine learning has recently introduced a new pathway to evaluating logic locking schemes. This paper summarizes the recent developments in logic locking attacks and countermeasures at the frontiers of contemporary machine learning models. Based on the presented work, the key takeaways, opportunities, and challenges are highlighted to offer recommendations for the design of next-generation logic locking.

* 6 pages, 3 figures, accepted at VLSI-SOC 2021 

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A New Neural Search and Insights Platform for Navigating and Organizing AI Research

Oct 30, 2020
Marzieh Fadaee, Olga Gureenkova, Fernando Rejon Barrera, Carsten Schnober, Wouter Weerkamp, Jakub Zavrel

To provide AI researchers with modern tools for dealing with the explosive growth of the research literature in their field, we introduce a new platform, AI Research Navigator, that combines classical keyword search with neural retrieval to discover and organize relevant literature. The system provides search at multiple levels of textual granularity, from sentences to aggregations across documents, both in natural language and through navigation in a domain-specific Knowledge Graph. We give an overview of the overall architecture of the system and of the components for document analysis, question answering, search, analytics, expert search, and recommendations.

* Accepted to Workshop on Scholarly Document Processing (SDP) at EMNLP 2020 

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Certified Mapper: Repeated testing for acyclicity and obstructions to the nerve lemma

Aug 29, 2018
Mikael Vejdemo-Johansson, Alisa Leshchenko

The Mapper algorithm does not include a check for whether the cover produced conforms to the requirements of the nerve lemma. To perform a check for obstructions to the nerve lemma, statistical considerations of multiple testing quickly arise. In this paper, we propose several statistical approaches to finding obstructions: through a persistent nerve lemma, through simulation testing, and using a parametric refinement of simulation tests. We suggest Certified Mapper -- a method built from these approaches to generate certificates of non-obstruction, or identify specific obstructions to the nerve lemma -- and we give recommendations for which statistical approaches are most appropriate for the task.

* 16 pages, submitted to the proceedings of the Abel symposium 

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Etymo: A New Discovery Engine for AI Research

Jan 25, 2018
Weijian Zhang, Jonathan Deakin, Nicholas J. Higham, Shuaiqiang Wang

We present Etymo (, a discovery engine to facilitate artificial intelligence (AI) research and development. It aims to help readers navigate a large number of AI-related papers published every week by using a novel form of search that finds relevant papers and displays related papers in a graphical interface. Etymo constructs and maintains an adaptive similarity-based network of research papers as an all-purpose knowledge graph for ranking, recommendation, and visualisation. The network is constantly evolving and can learn from user feedback to adjust itself.

* 7 pages, 2 figures 

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WMRB: Learning to Rank in a Scalable Batch Training Approach

Nov 10, 2017
Kuan Liu, Prem Natarajan

We propose a new learning to rank algorithm, named Weighted Margin-Rank Batch loss (WMRB), to extend the popular Weighted Approximate-Rank Pairwise loss (WARP). WMRB uses a new rank estimator and an efficient batch training algorithm. The approach allows more accurate item rank approximation and explicit utilization of parallel computation to accelerate training. In three item recommendation tasks, WMRB consistently outperforms WARP and other baselines. Moreover, WMRB shows clear time efficiency advantages as data scale increases.

* RecSys 2017 Poster Proceedings, August 27-31, Como, Italy 

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Are Style Guides Controlled Languages? The Case of Koenig & Bauer AG

Jun 13, 2014
Karolina Suchowolec

Controlled natural languages for industrial application are often regarded as a response to the challenges of translation and multilingual communication. This paper presents a quite different approach taken by Koenig & Bauer AG, where the main goal was the improvement of the authoring process for technical documentation. Most importantly, this paper explores the notion of a controlled language and demonstrates how style guides can emerge from non-linguistic considerations. Moreover, it shows the transition from loose language recommendations into precise and prescriptive rules and investigates whether such rules can be regarded as a full-fledged controlled language.

* Fourth Workshop on Controlled Natural Language (CNL 2014) 

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P4AI: Approaching AI Ethics through Principlism

Nov 28, 2021
Andre Fu, Elisa Ding, Mahdi S. Hosseini, Konstantinos N. Plataniotis

The field of computer vision is rapidly evolving, particularly in the context of new methods of neural architecture design. These models contribute to (1) the Climate Crisis - increased CO2 emissions and (2) the Privacy Crisis - data leakage concerns. To address the often overlooked impact the Computer Vision (CV) community has on these crises, we outline a novel ethical framework, \textit{P4AI}: Principlism for AI, an augmented principlistic view of ethical dilemmas within AI. We then suggest using P4AI to make concrete recommendations to the community to mitigate the climate and privacy crises.

* Human-Centered AI workshop at NeurIPS 2021 

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Active Learning Meets Optimized Item Selection

Nov 22, 2021
Bernard Kleynhans, Xin Wang, Serdar Kadıoğlu

Designing recommendation systems with limited or no available training data remains a challenge. To that end, a new combinatorial optimization problem is formulated to generate optimized item selection for experimentation with the goal to shorten the time for collecting randomized training data. We first present an overview of the optimized item selection problem and a multi-level optimization framework to solve it. The approach integrates techniques from discrete optimization, unsupervised clustering, and latent text embeddings. We then discuss how to incorporate optimized item selection with active learning as part of randomized exploration in an ongoing fashion.

* IJCAI 2021 Data Science Meets Optimization Workshop ([email protected] 2021) 

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Exploration and Incentives in Reinforcement Learning

Feb 28, 2021
Max Simchowitz, Aleksandrs Slivkins

How do you incentivize self-interested agents to $\textit{explore}$ when they prefer to $\textit{exploit}$ ? We consider complex exploration problems, where each agent faces the same (but unknown) MDP. In contrast with traditional formulations of reinforcement learning, agents control the choice of policies, whereas an algorithm can only issue recommendations. However, the algorithm controls the flow of information, and can incentivize the agents to explore via information asymmetry. We design an algorithm which explores all reachable states in the MDP. We achieve provable guarantees similar to those for incentivizing exploration in static, stateless exploration problems studied previously.

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