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Local Multi-Label Explanations for Random Forest

Mylonas, Nikolaos, Mollas, Ioannis, Bassiliades, Nick, Tsoumakas, Grigorios

arXiv.org Artificial Intelligence

Multi-label classification is a challenging task, particularly in domains where the number of labels to be predicted is large. Deep neural networks are often effective at multi-label classification of images and textual data. When dealing with tabular data, however, conventional machine learning algorithms, such as tree ensembles, appear to outperform competition. Random forest, being a popular ensemble algorithm, has found use in a wide range of real-world problems. Such problems include fraud detection in the financial domain, crime hotspot detection in the legal sector, and in the biomedical field, disease probability prediction when patient records are accessible. Since they have an impact on people's lives, these domains usually require decision-making systems to be explainable. Random Forest falls short on this property, especially when a large number of tree predictors are used. This issue was addressed in a recent research named LionForests, regarding single label classification and regression. In this work, we adapt this technique to multi-label classification problems, by employing three different strategies regarding the labels that the explanation covers. Finally, we provide a set of qualitative and quantitative experiments to assess the efficacy of this approach.


Texas' Abbott says Biden, Dems must stop 'misinformation' spread on voting bill

FOX News

Republican Dan Patrick sounds off on'Fox News @ Night' Gov. Greg Abbott, the Texas Republican, took to Twitter late Tuesday to blame President Biden for willfully spreading "misinformation" about the state GOP's sweeping elections overhaul bill. Biden, who was in Old City, Philadelphia, on Tuesday rebuked the bill in no uncertain terms. He said proponents of the election security measures are engaging in "21st century Jim Crow assault." Biden's remarks came a day after Texas Democrats decamped for Washington in an effort to deny their GOP-controlled Legislature the necessary quorum to pass a bill placing new restrictions on voting in the state. Abbott, who told Fox News the Democrats who fled the state face arrest upon their return, insisted that the bill in Texas is "making it EASIER to vote & harder to cheat."


Quorum receives research funding for Machine Learning project

#artificialintelligence

CALGARY, Alberta, July 06, 2021 (GLOBE NEWSWIRE) -- Quorum Information Technologies Inc. (TSX Venture: QIS) (Quorum) announced today that it is receiving advisory services and funding of up to $724,746 from the National Research Council of Canada Industrial Research Assistance Program (NRC IRAP) to support a research and development project to consolidate Quorum's dealership data and add machine learning capabilities to its Cloud-based applications. The NRC IRAP support is the next step in a process started in 2020 when Quorum launched QAnalytics – an enterprise reporting tool for the Quorum suite of products powered by Microsoft Power BI. QAnalytics is now utilized by 30% of Quorum's XSellerator Dealership Management System (DMS) customers. "QAnalytics has changed how we manage our 11 franchised dealerships in our auto group," stated Tim Davis, CEO of Davis Auto Group. "The real time metrics that QAnalytics provides for all aspects of our dealership's operations allow our management team to make confident, data-driven decisions." Quorum's next step is to strategically consolidate dealership data from its 1,025 customers on Microsoft Azure Synapse, enabling QAnalytics to deliver enhanced critical Business Intelligence insights into dealership operations and provide a consolidated dataset for Machine Learning projects.


A review of consensus protocols

#artificialintelligence

The consensus problem is a fundamental problem in multi-agent systems which requires a group of processes (or agents) to reliably and timely agree on a single data value. Although extensively discussed in the context of distributed computing it's not exclusive to this field, also being present in our society in a variety of situations such as in democratic elections, the legislative process, jury trial proceedings, and so forth. It's solved through the employment of a consensus protocol governing how processes (agents) interact with one another. It may seem redundant but, to solve the consensus problem, first all processes agree to follow the same consensus protocol. Some of these processes may fail or be unreliable in other ways (such as in a conflict of interest situation) so consensus protocols must be fault tolerant or resilient.


Microsoft Is Using Blockchain to Help Firms Trust AI

#artificialintelligence

Microsoft is pitching blockchain technology as a way to make artificial intelligence less scary for its corporate customers. Much like consumers who are wary of AI, enterprises are queasy about putting their full trust in a "black box" where machine learning algorithms are indiscriminately applied to vast data sets. But Microsoft, which helps thousands of firms manage their data, claims a blockchain can add trust and a degree of transparency, assuaging such concerns. Underpinning this is a new tool called Azure Blockchain Data Manager, which the software giant released at its annual Ignite conference in Orlando, Florida, but was overshadowed by the announcement of a platform for creating enterprise tokens. Blockchain Data Manager takes on-chain data and connects it to other applications.


LionForests: Local Interpretation of Random Forests through Path Selection

Mollas, Ioannis, Tsoumakas, Grigorios, Bassiliades, Nick

arXiv.org Artificial Intelligence

Towards a future where machine learning systems will integrate into every aspect of people's lives, researching methods to interpret such systems is necessary, instead of focusing exclusively on enhancing their performance. Enriching the trust between these systems and people will accelerate this integration process. Many medical and retail banking/finance applications use state-of-the-art machine learning techniques to predict certain aspects of new instances. Tree ensembles, like random forests, are widely acceptable solutions on these tasks, while at the same time they are avoided due to their black-box uninterpretable nature, creating an unreasonable paradox. In this paper, we provide a sequence of actions for shedding light on the predictions of the misjudged family of tree ensemble algorithms. Using classic unsupervised learning techniques and an enhanced similarity metric, to wander among transparent trees inside a forest following breadcrumbs, the interpretable essence of tree ensembles arises. An explanation provided by these systems using our approach, which we call "LionForests", can be a simple, comprehensive rule.


Can Washington Be Automated?

#artificialintelligence

In early 2016, the Office of Personnel Management, the human resources agency for federal employees, began researching software that would track the social media accounts of security clearance applicants. The agency was reportedly looking to contract with companies that could do searches with almost no need for human input and had a "robust identity-matching algorithm" to cut down on mixups. The company's chief competitor is a 10-minute walk from FiscalNote's office, just south of Dupont Circle. Quorum was founded in 2014 by Alex Wirth and Jonathan Marks while they were still Harvard undergrads. Now employing up to 46 people, stuffed into a buzzing glass-partitioned office space marked by caramel-colored wide-board wood floors, the office has a map of the D.C. Metro system embedded in tile on the wall of the open kitchen space.


904

AI Magazine

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AI DAOs, and Three Paths to Get There

#artificialintelligence

When artificial intelligence (AI) gets added to the mix, the results are explosive. I was about ten years old when I stumbled across a book on artificial intelligence (AI). The profound implications sunk in. I've been passionate about ever it since. I spent nearly twenty years as a professional AI researcher.


Bylaws of the American Association for Artificial Intelligence

AAAI,

AI Magazine

The Executive Council may change the principal office in California The name of this corporation shall be the American Association from one location to another. The corporation may have such other offices, either within or without the State of California, ARTICLE II. This corporation is a nonprofit public benefit corporation and is not organized for the private gain of any person. MEMBERS is organized under the California Nonprofit Corporation Law for scientific and educational purposes in the field of Section 1. Classes and Privileges. Student members have all the rights and privileges of Regular ARTICLE III. The Executive Council shall determine (a) This corporation is organized and operated exclusively the qualifications for membership in the corporation.