Map matching by using inertial sensors: literature review

This literature review aims to clarify what is known about map matching by using inertial sensors and what are the requirements for map matching, inertial sensors, placement and possible complementary position technology. The target is to develop a wearable location system that can position itself within a complex construction environment automatically with the aid of an accurate building model. The wearable location system should work on a tablet computer which is running an augmented reality (AR) solution and is capable of track and visualize 3D-CAD models in real environment. The wearable location system is needed to support the system in initialization of the accurate camera pose calculation and automatically finding the right location in the 3D-CAD model. One type of sensor which does seem applicable to people tracking is inertial measurement unit (IMU). The IMU sensors in aerospace applications, based on laser based gyroscopes, are big but provide a very accurate position estimation with a limited drift. Small and light units such as those based on Micro-Electro-Mechanical (MEMS) sensors are becoming very popular, but they have a significant bias and therefore suffer from large drifts and require method for calibration like map matching. The system requires very little fixed infrastructure, the monetary cost is proportional to the number of users, rather than to the coverage area as is the case for traditional absolute indoor location systems.

Verkkosivujen automaattinen nopeusoptimointi Google PageSpeed -työkaluilla

Toukokuussa 2015 verkkosivujen keskimääräinen latauskoko ylitti ensimmäistä kertaa kahden megatavun rajan Internetin historian aikana. Verkkosivujen keskimääräinen latauskoko on ollut jatkuvassa kasvussa, vaikka yhä enemmän verkkosivuja selataan epäluotettavilla mobiiliyhteyksillä tai hitailla päätelaitteilla. Tässä tutkielmassa esitellään verkkosivujen latausnopeuteen vaikuttavia tekijöitä ja kuinka näitä tekijöitä voidaan optimoida nopeamman Internetin saavuttamiseksi. Verkkosivujen latausnopeuteen vaikuttavia kriteerejä on paljon ja kriteerit vaihtelevat sivustokohtaisesti. Verkkosivujen nopeusoptimointi on teknistä ja kriteerien monimuotoisuuden ja vaihtelevuuden johdosta automaattinen nopeusoptimointi on vaikeaa. Tutkielmassa esitellään tähän ongelmaan yhtenä ratkaisuna Googlen tarjoamat PageSpeed -työkalut. PageSpeed -työkaluista esitellään kaksi keskeistä työkalua: Google PageSpeed Insights -metriikkatyökalu, joka mittaa sivuston lataus- ja renderöintinopeutta ja Google PageSpeed Module -palvelinmoduuli, joka tekee automaattista nopeusoptimointia reaaliaikaisesti HTTP-palvelimen yhteydessä.

Bachelor of Arts, Honours in String Pulling

In reference to the actions of the Board of Governors of the University.

String figures : a study of Cat`s-Cradle in many lands

UANL

Von Neumann-Morgenstern Stable Sets in Matching Problems

The following properties of the core of a one well-known: (i) the core is non-empty; (ii) the core is a lattice; and (iii) the set of unmatched agents is identical for any two matchings belonging to the core. The literature on two-sided matching focuses almost exclusively on the core and studies extensively its properties. Our main result is the following characterization of (von Neumann-Morgenstern) stable sets in one-to-one matching problem only if it is a maximal set satisfying the following properties : (a) the core is a subset of the set; (b) the set is a lattice; (c) the set of unmatched agents is identical for any two matchings belonging to the set. Furthermore, a set is a stable set if it is the unique maximal set satisfying properties (a), (b) and (c). We also show that our main result does not extend from one-to-one matching problems to many-to-one matching problems.

Matching Markets under (In)complete Information

We are the first to introduce incomplete information to centralized many-to-one matching markets such as those to entry-level labor markets or college admissions. This is important because in real life markets (i) any agent is uncertain about the other agents' true preferences and (ii) most entry-level matching is many-to-one (and not one-to-one). We show that for stable (matching) mechanisms there is a strong and surprising link between Nash equilibria under complete information and Bayesian Nash equilibria under incomplete information. That is,given a common belief, a strategy profile is a Bayesian Nash equilibrium under incomplete information in a stable mechanism if and only if, for any true profile in the support of the common belief, the submitted profile is a Nash equilibrium under complete information at the true profile in the direct preference revelation game induced by the stable mechanism. This result may help to explain the success of stable mechanisms in these markets.

Censure.cn : Google s’attaque au marché chinois

Étude de cas

Using Google Analytics to evaluate an email information literacy program for medical and dental students

Objectives: An email information literacy program has been effective for over a decade at Université de Montréal’s Health Library. Students periodically receive messages highlighting the content of guides on the library’s website. We wish to evaluate, using Google Analytics, the effects of the program on specific webpage statistics. Using the data collected, we may pinpoint popular guides as well as others that need improvement. Methods: In the program, first and second-year medical (MD) or dental (DMD) students receive eight bi-monthly email messages. The DMD mailing list also includes graduate students and professors. Enrollment to the program is optional for MDs, but mandatory for DMDs. Google Analytics (GA) profiles have been configured for the libraries websites to collect visitor statistics since June 2009. The GA Links Builder was used to design unique links specifically associated with the originating emails. This approach allowed us to gather information on guide usage, such as the visitor’s program of study, duration of page viewing, number of pages viewed per visit, as well as browsing data. We also followed the evolution of clicks on GA unique links over time, as we believed that users may keep the library's emails and refer to them to access specific information. Results: The proportion of students who actually clicked the email links was, on average, less than 5%. MD and DMD students behaved differently regarding guide views, number of pages visited and length of time on the site. The CINAHL guide was the most visited for DMD students whereas MD students consulted the Pharmaceutical information guide most often. We noted that some students visited referred guides several weeks after receiving messages, thus keeping them for future reference; browsing to additional pages on the library website was also frequent. Conclusion: The mitigated success of the program prompted us to directly survey students on the format, frequency and usefulness of messages. The information gathered from GA links as well as from the survey will allow us to redesign our web content and modify our email information literacy program so that messages are more attractive, timely and useful for students.

Three works on religious themes : psalmus 150, string quartet on the life of Saint John Paul II and symphony “The Redemption”

Dans cette dissertation, je présente trois pièces sur des thèmes religieux composées au cours de ma maîtrise, ainsi que leur analyse : Psalmus 150 pour chœur de jeunes à trois voix, chœur d'adultes à huit voix et orgue ou piano ; Quatuor à Cordes sur la vie de Saint Jean-Paul II ; et la Symphonie « La Rédemption » pour orchestre et chœur. Malgré les particularités de chacune, elles présentent des aspects communs. L'idée principale des compositions fut d'éviter la rupture avec la tradition tout en apportant des nouvelles idées aux pièces, et de souligner l'importance de ma recherche sur la beauté. À cet égard, certaines techniques contemporaines, ainsi que les sonorités médiévales des quintes et octaves parallèles, furent utilisées en accord avec un langage tonal / modal qui demeure la base des trois compositions. Le chant Grégorien fut aussi une importante caractéristique de ces compositions. Pour mieux comprendre les analyses des œuvres, deux techniques seront expliquées, la douce toile de dissonances linéaires et l'harmonie d'accords parfaits majeurs. L'analyse de chaque pièce est divisée en deux parties. La première est une vision générale et la deuxième est plus détaillée. À la fin, les connaissances acquises par la composition des ces œuvres seront résumées et l'importance intemporelle de la beauté sera réaffirmée.

A new method for load matching in multimode microwave feating applicators based on the use of dielectric layer superposition

Usage of a dielectric multilayer around a dielectric Sample is studied as a means for improving the efficiency in multimode microwave- heating cavities. The results show that by using additional dielectric constant layers the appearance of undesired reflections at the sample-air interface is avoided and higher power -absorption rates within the sample and high -efficiency designs are obtained