Africa
This New AI Can Tell The Kind Of Faces You Find Attractive
AI researchers are constantly coming up with ways to make the technology serve us better. However, while these services are impressive they can be a tad creepy. A time when social media will be able to like pictures on our behalf, based on how our brain reacts to the picture sounds quite uncomfortable. Although Instagram isn't working on an algorithm that tracks brain waves, researchers from the University of Helsinki and Copenhagen University are. This AI matchmaker can tell when you find someone attractive.
Interpreting Deep Learning Models with Marginal Attribution by Conditioning on Quantiles
Merz, M., Richman, R., Tsanakas, T., Wüthrich, M. V.
A vastly growing literature on explaining deep learning models has emerged. This paper contributes to that literature by introducing a global gradient-based model-agnostic method, which we call Marginal Attribution by Conditioning on Quantiles (MACQ). Our approach is based on analyzing the marginal attribution of predictions (outputs) to individual features (inputs). Specificalllly, we consider variable importance by mixing (global) output levels and, thus, explain how features marginally contribute across different regions of the prediction space. Hence, MACQ can be seen as a marginal attribution counterpart to approaches such as accumulated local effects (ALE), which study the sensitivities of outputs by perturbing inputs. Furthermore, MACQ allows us to separate marginal attribution of individual features from interaction effect, and visually illustrate the 3-way relationship between marginal attribution, output level, and feature value.
Learning to Robustly Negotiate Bi-Directional Lane Usage in High-Conflict Driving Scenarios
Killing, Christoph, Villaflor, Adam, Dolan, John M.
Recently, autonomous driving has made substantial progress in addressing the most common traffic scenarios like intersection navigation and lane changing. However, most of these successes have been limited to scenarios with well-defined traffic rules and require minimal negotiation with other vehicles. In this paper, we introduce a previously unconsidered, yet everyday, high-conflict driving scenario requiring negotiations between agents of equal rights and priorities. There exists no centralized control structure and we do not allow communications. Therefore, it is unknown if other drivers are willing to cooperate, and if so to what extent. We train policies to robustly negotiate with opposing vehicles of an unobservable degree of cooperativeness using multi-agent reinforcement learning (MARL). We propose Discrete Asymmetric Soft Actor-Critic (DASAC), a maximum-entropy off-policy MARL algorithm allowing for centralized training with decentralized execution. We show that using DASAC we are able to successfully negotiate and traverse the scenario considered over 99% of the time. Our agents are robust to an unknown timing of opponent decisions, an unobservable degree of cooperativeness of the opposing vehicle, and previously unencountered policies. Furthermore, they learn to exhibit human-like behaviors such as defensive driving, anticipating solution options and interpreting the behavior of other agents.
Quality at a Glance: An Audit of Web-Crawled Multilingual Datasets
Caswell, Isaac, Kreutzer, Julia, Wang, Lisa, Wahab, Ahsan, van Esch, Daan, Ulzii-Orshikh, Nasanbayar, Tapo, Allahsera, Subramani, Nishant, Sokolov, Artem, Sikasote, Claytone, Setyawan, Monang, Sarin, Supheakmungkol, Samb, Sokhar, Sagot, Benoît, Rivera, Clara, Rios, Annette, Papadimitriou, Isabel, Osei, Salomey, Suárez, Pedro Javier Ortiz, Orife, Iroro, Ogueji, Kelechi, Niyongabo, Rubungo Andre, Nguyen, Toan Q., Müller, Mathias, Müller, André, Muhammad, Shamsuddeen Hassan, Muhammad, Nanda, Mnyakeni, Ayanda, Mirzakhalov, Jamshidbek, Matangira, Tapiwanashe, Leong, Colin, Lawson, Nze, Kudugunta, Sneha, Jernite, Yacine, Jenny, Mathias, Firat, Orhan, Dossou, Bonaventure F. P., Dlamini, Sakhile, de Silva, Nisansa, Ballı, Sakine Çabuk, Biderman, Stella, Battisti, Alessia, Baruwa, Ahmed, Bapna, Ankur, Baljekar, Pallavi, Azime, Israel Abebe, Awokoya, Ayodele, Ataman, Duygu, Ahia, Orevaoghene, Ahia, Oghenefego, Agrawal, Sweta, Adeyemi, Mofetoluwa
With the success of large-scale pre-training and multilingual modeling in Natural Language Processing (NLP), recent years have seen a proliferation of large, web-mined text datasets covering hundreds of languages. However, to date there has been no systematic analysis of the quality of these publicly available datasets, or whether the datasets actually contain content in the languages they claim to represent. In this work, we manually audit the quality of 205 language-specific corpora released with five major public datasets (CCAligned, ParaCrawl, WikiMatrix, OSCAR, mC4), and audit the correctness of language codes in a sixth (JW300). We find that lower-resource corpora have systematic issues: at least 15 corpora are completely erroneous, and a significant fraction contains less than 50% sentences of acceptable quality. Similarly, we find 82 corpora that are mislabeled or use nonstandard/ambiguous language codes. We demonstrate that these issues are easy to detect even for non-speakers of the languages in question, and supplement the human judgements with automatic analyses. Inspired by our analysis, we recommend techniques to evaluate and improve multilingual corpora and discuss the risks that come with low-quality data releases.
MasakhaNER: Named Entity Recognition for African Languages
Adelani, David Ifeoluwa, Abbott, Jade, Neubig, Graham, D'souza, Daniel, Kreutzer, Julia, Lignos, Constantine, Palen-Michel, Chester, Buzaaba, Happy, Rijhwani, Shruti, Ruder, Sebastian, Mayhew, Stephen, Azime, Israel Abebe, Muhammad, Shamsuddeen, Emezue, Chris Chinenye, Nakatumba-Nabende, Joyce, Ogayo, Perez, Aremu, Anuoluwapo, Gitau, Catherine, Mbaye, Derguene, Alabi, Jesujoba, Yimam, Seid Muhie, Gwadabe, Tajuddeen, Ezeani, Ignatius, Niyongabo, Rubungo Andre, Mukiibi, Jonathan, Otiende, Verrah, Orife, Iroro, David, Davis, Ngom, Samba, Adewumi, Tosin, Rayson, Paul, Adeyemi, Mofetoluwa, Muriuki, Gerald, Anebi, Emmanuel, Chukwuneke, Chiamaka, Odu, Nkiruka, Wairagala, Eric Peter, Oyerinde, Samuel, Siro, Clemencia, Bateesa, Tobius Saul, Oloyede, Temilola, Wambui, Yvonne, Akinode, Victor, Nabagereka, Deborah, Katusiime, Maurice, Awokoya, Ayodele, MBOUP, Mouhamadane, Gebreyohannes, Dibora, Tilaye, Henok, Nwaike, Kelechi, Wolde, Degaga, Faye, Abdoulaye, Sibanda, Blessing, Ahia, Orevaoghene, Dossou, Bonaventure F. P., Ogueji, Kelechi, DIOP, Thierno Ibrahima, Diallo, Abdoulaye, Akinfaderin, Adewale, Marengereke, Tendai, Osei, Salomey
We take a step towards addressing the under-representation of the African continent in NLP research by creating the first large publicly available high-quality dataset for named entity recognition (NER) in ten African languages, bringing together a variety of stakeholders. We detail characteristics of the languages to help researchers understand the challenges that these languages pose for NER. We analyze our datasets and conduct an extensive empirical evaluation of state-of-the-art methods across both supervised and transfer learning settings. We release the data, code, and models in order to inspire future research on African NLP.
The Artificial Intelligence Influencers That You Should Be Following - CityAM
Artificial intelligence (AI) is the ultimate manifestation of the promise of technology to improve our lives. Within our lifetimes AI will become omnipresent across every segment of economic activity and within every field of human endeavour. But AI is not a single genus but a constellation of technologies that must work together in harmony. By 2030 over 50 billion devices will be connected to the Internet of Things and will include new sensor technologies which will capture and create new modalities of data. Mastering this constellation of artificial intelligence technologies is a rainbow of minds from data scientists to robot builders and AI investors.
Collaborative Agent Gameplay in the Pandemic Board Game
Sfikas, Konstantinos, Liapis, Antonios
Academic research in board game playing AI has of course moved While artificial intelligence has been applied to control players' beyond most pedestrian board games, applying a diverse set of decisions in board games for over half a century, little attention algorithms for playing card games with millions of card combinations is given to games with no player competition. Pandemic is an exemplar such as Magic: the Gathering (Wizards of the Coast, 1993) [3], collaborative board game where all players coordinate to games of tactical card placement such as Lords of War (Black Box, overcome challenges posed by events occurring during the game's 2012) [19] and Carcassonne (Hans im Glück, 2000) [9], card games progression. This paper proposes an artificial agent which controls of team-based competition such as Hanabi (Abacusspiele, 2010) [26] all players' actions and balances chances of winning versus risk or Codenames (Czech Games Edition, 2015) [22], and many more. of losing in this highly stochastic environment. The agent applies Traditional board games such as chess [15] and backgammon a Rolling Horizon Evolutionary Algorithm on an abstraction of [23], as well as recent card games such as Race for the Galaxy (Rio the game-state that lowers the branching factor and simulates the Grande, 2007) [6] or digitized board games such as Hearthstone game's stochasticity. Results show that the proposed algorithm (Blizzard, 2014) [11, 18], focus on players competing to deplete another can find winning strategies more consistently in different games player's resources (pawns, hit points) or to accumulate more of varying difficulty.
Common Sense Knowledge, Ontology and Text Mining for Implicit Requirements
Emebo, Onyeka, Varde, Aparna S., Daramola, Olawande
The ability of a system to meet its requirements is a strong determinant of success. Thus effective requirements specification is crucial. Explicit Requirements are well-defined needs for a system to execute. IMplicit Requirements (IMRs) are assumed needs that a system is expected to fulfill though not elicited during requirements gathering. Studies have shown that a major factor in the failure of software systems is the presence of unhandled IMRs. Since relevance of IMRs is important for efficient system functionality, there are methods developed to aid the identification and management of IMRs. In this paper, we emphasize that Common Sense Knowledge, in the field of Knowledge Representation in AI, would be useful to automatically identify and manage IMRs. This paper is aimed at identifying the sources of IMRs and also proposing an automated support tool for managing IMRs within an organizational context. Since this is found to be a present gap in practice, our work makes a contribution here. We propose a novel approach for identifying and managing IMRs based on combining three core technologies: common sense knowledge, text mining and ontology. We claim that discovery and handling of unknown and non-elicited requirements would reduce risks and costs in software development.
Privacy expert Clare Garvie explains why your face is already in a criminal lineup
Biometric surveillance is coming for you, even if you have'nothing to hide' Clare Garvie is a Senior Associate at Georgetown University's Center on Privacy and Technology, where she has dedicated her work to studying law enforcement's use of face recognition technology on the American public. She is considered the foremost expert on face recognition technology; last year she testified in front of Congress. She writes extensively on its use in law enforcement investigations. As well, she brings to light the worrying ways the technology disrupts privacy, circumvents judicial norms and legal precedents, and promotes chilling effects on free speech and civil liberties. All of this happens under a veil of secrecy, without public consent and largely outside of the purview of American lawmakers. Garvie's research spotlights the ways these technologies are disproportionately used on Black and Brown communities and the failures of face recognition algorithms when deployed on people of color and women. The technology's efficacy, already cause for concern, is further problematized by law enforcement's cavalier practices.
Data Analyst - Operations
With food at the core of the business, Glovo delivers any product within your city at any time of day. Our vision and ambition are not only to give everyone easy access to everything in their city, but it is also to offer our employees the job of their lives. A job where you'll be challenged and have the most fun working in through tech-enabled experiences. Your work-life opportunity: Glovo is looking for a Business Analyst for the Global Partner Operations team. You will join a team of project managers and fellow analysts aiming to deconstruct operational performance of our Partners and deploy creative solutions to ensure a great experience for Glovo customers.