Loop closure detection is an important building block that ensures the accuracy and robustness of simultaneous localization and mapping (SLAM) systems. Due to their generalization ability, CNN-based approaches have received increasing attention. Although they normally benefit from training on datasets that are diverse and reflective of the environments, new environments often emerge after the model is deployed. It is therefore desirable to incorporate the data newly collected during operation for incremental learning. Nevertheless, simply finetuning the model on new data is infeasible since it may cause the model's performance on previously learned data to degrade over time, which is also known as the problem of catastrophic forgetting. In this paper, we present AirLoop, a method that leverages techniques from lifelong learning to minimize forgetting when training loop closure detection models incrementally. We experimentally demonstrate the effectiveness of AirLoop on TartanAir, Nordland, and RobotCar datasets. To the best of our knowledge, AirLoop is one of the first works to achieve lifelong learning of deep loop closure detectors.

Everyone wants to try their hands on Machine Learning at some point of time in their software career. The first algorithm mostly all books and online courses starts with is the Linear regression. Linear arranged in a straight line. So, the idea of understanding the relationship between 2 variables by plotting a linear line is coined as linear regression. Let us take an example, Price of the house with respect to the size of the house.

Artificial intelligence (AI) and machine learning (ML) are key drivers of growth and innovation in every industry, and this is no different in the education sector. Artificial Intelligence (AI) has made significant inroads into a wide range of industries since its early days of robots and voice-activated machines. Artificial intelligence has indeed served to amplify the toil of those who put in the hours. This allows educators to focus on developing engaging and challenging curricula while automating much of the back-end support work for them. AI tools have also helped to refocus attention on accessibility. According to the eLearning Industry, as many as 60% of learning management tools will be equipped with AI capabilities in the next five years.

Hyderabad: Select Government school complexes (a cluster of high school, middle and primary schools) in the State may soon get to use some artificial intelligence based tools that will automate a few of the time and resources consuming processes like formative assessments, marking attendance, logging mid-day meals data among others. They will even be put to use to teach English and later other languages too. These artificial intelligence-based tools will be implemented in select school complexes in Moinabad as a pilot project through the Prof Raj Centre at IIIT-H, which is working to create artificial technologies and technology solutions for the grassroots. A team from the IIIT-H had initial meetings with select school complex head masters, resource persons and officials of the Education Department to understand problems at the grass-root level. "We plan to meet the concerned people once again and make specific plans for the technology interventions possible. We want to keep the technologies ready for the coming academic year. These will be short term projects of three to six months that aim to address the issues at the earliest," said Ramesh Loganathan, Co-Innvation Professor at IIIT-H.

Knowledge amalgamation (KA) is a novel deep model reusing task aiming to transfer knowledge from several well-trained teachers to a multi-talented and compact student. Currently, most of these approaches are tailored for convolutional neural networks (CNNs). However, there is a tendency that transformers, with a completely different architecture, are starting to challenge the domination of CNNs in many computer vision tasks. Nevertheless, directly applying the previous KA methods to transformers leads to severe performance degradation. In this work, we explore a more effective KA scheme for transformer-based object detection models. Specifically, considering the architecture characteristics of transformers, we propose to dissolve the KA into two aspects: sequence-level amalgamation (SA) and task-level amalgamation (TA). In particular, a hint is generated within the sequence-level amalgamation by concatenating teacher sequences instead of redundantly aggregating them to a fixed-size one as previous KA works. Besides, the student learns heterogeneous detection tasks through soft targets with efficiency in the task-level amalgamation. Extensive experiments on PASCAL VOC and COCO have unfolded that the sequence-level amalgamation significantly boosts the performance of students, while the previous methods impair the students. Moreover, the transformer-based students excel in learning amalgamated knowledge, as they have mastered heterogeneous detection tasks rapidly and achieved superior or at least comparable performance to those of the teachers in their specializations.

Abstract--Abstract Visual Reasoning (AVR) problems are commonly used to approximate human intelligence. They test the ability of applying previously gained knowledge, experience and skills in a completely new setting, which makes them particularly well-suited for this task. Recently, the AVR problems have become popular as a proxy to study machine intelligence, which has led to emergence of new distinct types of problems and multiple benchmark sets. In this work we review this emerging AVR research and propose a taxonomy to categorise the AVR tasks along 5 dimensions: input shapes, hidden rules, target task, cognitive function, and specific challenge. The perspective taken in this survey allows to characterise AVR problems with respect to their shared and distinct properties, provides a unified view on the existing approaches to solving AVR tasks, shows how the AVR problems relate to practical applications, and outlines promising directions for future work. One of them refers to the observation that in the machine learning literature different tasks are considered in isolation, which is in the stark contrast with the way the AVR tasks are used to measure human intelligence, where multiple types of problems are combined within a single IQ test.

We present a PAC-Bayesian analysis of lifelong learning. In the lifelong learning problem, a sequence of learning tasks is observed one-at-a-time, and the goal is to transfer information acquired from previous tasks to new learning tasks. We consider the case when each learning task is a multi-armed bandit problem. We derive lower bounds on the expected average reward that would be obtained if a given multi-armed bandit algorithm was run in a new task with a particular prior and for a set number of steps. We propose lifelong learning algorithms that use our new bounds as learning objectives. Our proposed algorithms are evaluated in several lifelong multi-armed bandit problems and are found to perform better than a baseline method that does not use generalisation bounds.

Thank you all for the huge response to this emerging course! We are delighted to have over 20,000 students in over 160 different countries. I'm genuinely touched by the overwhelmingly positive and thoughtful reviews. It's such a privilege to share and introduce this important topic with everyday people in a clear and understandable way. I'm also excited to announce that I have created real closed captions for all course material, so weather you need them due to a hearing impairment, or find it easier to follow long (great for ESL students!)... I've got you covered.

The primary goal of this course is to provide you a comprehensive learning framework to use Python for data science. Data Science with Python involves not only using Python language to clean, analyze and visualize data, but also applying Python programming skills to predict and identify trends useful for decision-making. Since data revolution has made data as the new oil for organizations, today's decisions are driven by multidisciplinary approach of using data, mathematical models, statistics, graphs, databases for various business needs such as forecasting weather, customer segmentation, studying protein structures in biology, designing a marketing campaign, opening a new store, and the like. The modern data-powered technology systems are driven by identifying, integrating, storing and analyzing data for useful business decisions. Scientific logic backed with data provides solid understanding of the business and its analysis.

Python 3 でクローリングして画像データを収集、加工し、画像分類器を作ってみよう。ディープラーニングによるモデル作成、改善を自分の集めたデータで実践します。Flaskでウェブアプリ化, XcodeでiOSアプリ化にも挑戦します。