In this paper, we present the system design and the key techniques of our mobile robot platform called KeJia-LC, who won the first place in the demo challenge on Benchmarkinng Service Robots in RoboCup 2015. Given the fact that KeJia-LC is a low-cost version of our KeJia robot without shoulder and arm, several new technical demands comparing to RoboCup@Home are highlighted for better understand...

In two previous essays (Perron, 2006 and Arsenault & Perron 2008), I have conceptualized the partaking in a game as a cognitive frame, as an ongoing process. To explain the gamer's immersion and progression through a game, I have resorted to the figure of the cycle, of the spiral instead of talking about Huizinga's " magic circle ". In this model, three interconnected spirals are represented: t...

This work introduces a smart cross-layer architecture composed of a battery-less smart solar power system, a simple configurable power-aware MAC protocol, and an intelligent fuzzy-logic based autonomous configuration protocol. The design of the proposed protocols is derived from the fundamental principles of complementary areas, namely: electronics, protocol engineering, and artificial intellig...

OLAP servers based on relational backends typically exploit materialized aggregate tables to improve response times of complex analytical queries. One of the key problems in this context is the view selection problem: choosing the optimal set of aggregation tables (called configuration) for a given workload. In this paper, we present a system that continuously monitors the workload and raises a...

This demonstration shows an integrated query processing environment where users can seamlessly query both a data stream management system and a sensor network with one query expression. By integrating the two query processing systems, the optimization goals of the sensor network (primarily power) and server network (primarily latency and quality) can be unified into one quality of service metri...

In this paper, we demonstrate RecDB; a full-fledged database system that provides personalized recommendation to users. We implemented RecDB using an existing open source database system PostgreSQL, and we demonstrate the effectiveness of RecDB using two existing recommendation applications (1) Restaurant Recommendation, (2) Movie Recommendation. To make the demo even more interactive, we showc...

We believe that one of the major impediments to involvement in the field of robotics and AI is the difficulty end-users face in creating viable robot control policies. We seek to address this difficulty with lifelong robot learning and have developed an intuitive robot control interface using the Nintendo Wii remote to aid in this task. From three large public demos and several smaller ones, we...

A common geometric problem in computer graphics and geographic information systems is to compute the arrangement of a set of n segments that can be colored red and blue so that there are no red/red or blue/blue crossings. We give a sweep algorithm that uses the minimum arithmetic precision and runs in optimal O(n logn + k) time and O(n) space to output an arrangement with k vertices, or O(n log...

The LIEM (Computer and Electronic Music Laboratory) is part of CDMC (Center for the Promotion of Contemporary Music INAEM Ministry of Culture Spain). It is a public service used every year by around 30 composers from Spain and abroad to finish their works. Other activities include software development as required by composition projects, presentation of workshops, seminars and demos, production...

Users of mobile devices are increasingly requesting a controlled way to exit from the sandboxing model in order to exploit the full computational power of the device. Porting in-line security monitors to mobile devices requires to solve both theoretical and practical challenges. Current security monitors provided solutions only for the desktop and either monitor a single instance of an applicat...