Particular object retrieval with integral max-pooling of CNN activations

Recently, image representation built upon Convolutional Neural Network (CNN) has been shown to provide effective descriptors for image search, outperforming pre-CNN features as short-vector representations. Yet such models are not compatible with geometry-aware re-ranking methods and still outperformed, on some particular object retrieval benchmarks, by traditional image search systems relying on precise descriptor matching, geometric re-ranking, or query expansion. This work revisits both retrieval stages, namely initial search and re-ranking, by employing the same primitive information derived from the CNN. We build compact feature vectors that encode several image regions without the need to feed multiple inputs to the network. Furthermore, we extend integral images to handle max-pooling on convolutional layer activations, allowing us to efficiently localize matching objects. The resulting bounding box is finally used for image re-ranking. As a result, this paper significantly improves existing CNN-based recognition pipeline: We report for the first time results competing with traditional methods on the challenging Oxford5k and Paris6k datasets

Rehearsing Revolution

Book review of Latinx Theater in the Times of Neoliberalism (2018) by Patricia A. Ybarr

Coping strategies in psychology students

El objetivo de la presente investigación fue conocer el tipo de estrategias de afrontamiento que utilizan los estudiantes universitarios y su relación con variables académicas, tales como año de cursada y cantidad de materias aprobadas, como también con el género. El estudio se llevó a cabo con una muestra intencional de 140 estudiantes de la carrera de Psicología de la Universidad Católica Argentina, sede Mendoza en el año 2013. Se utilizó el Inventario de Respuestas de Afrontamiento para Jóvenes (Moos, 1993, 1995; adaptación de (Ongarato, de la Iglesia, Stover y Fernández Liporace, 2009). Las pruebas revelaron que el tipo de estrategia de afrontamiento predominante, utilizada por los estudiantes es Afrontamiento Por Aproximación Cognitiva.The objective of this research was to understand the types of coping strategies that used college students and its relationship with academic variables, such as year of courses and number of subjects approved, as well as with the genus. The study was conducted with a deliberate display of 140 students of psychology the Universidad Católica Argentina, Mendoza headquarters in 2013. We used the coping responses inventory for youth (Moos, 1993, 1995); adaptation of Ongarato, de la Iglesia, Stover & Fernández Liporace (2009). Tests revealed that the predominant type of coping strategy used by students is Cognitive Approach For Coping.Fil: Sicre, Estefanía. Pontificia Universidad Católica Argentina ; ArgentinaFil: Casari, Leandro Martín. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mendoza. Instituto de Ciencias Humanas, Sociales y Ambientales; Argentina. Pontificia Universidad Católica Argentina ; Argentin

Get In Where You Fit In: Creating a Safe Space for Students of Color in the Academy, John Shévin Foster, Kashi Johnson, and Daphnie Sicre in Conversation

Well-known playwright and theatre leader John Shévin Foster interviewed Kashi Johnson and Daphnie Sicre about the ways in which they use Hip Hop theatre pedagogy in their courses. Mapping their time together at Lehigh University as undergraduates up to becoming theatre professors themselves, Johnson and Sicre share how students might feel empowered by the opportunities given to them in their courses

Cu-Al-Ni Shape Memory Single Crystal Wires with High Transformation Temperature

CN-250X is a new material with higher performance than Nickel-Titanium Shape Memory Alloy (SMA). For space mechanisms, the main disadvantage of Nickel-Titanium Shape Memory Alloy is the limited transformation temperature. The new CN-250X Nimesis alloy is a Cu-Al-Ni single crystal wire available in large quantity because of a new industrial process. The triggering of actuators made with this Cu-Al-Ni single crystal wire can range from ambient temperature to 200 C in cycling and even to 250 C in one-shot mode. Another advantage of CN-250X is a better shape recovery (8 to 10%) than Ni-Ti (6 to 7%). Nimesis is the first company able to produce this type of material with its new special industrial process. A characterization study is presented in this work, including the two main solicitation modes for this material: tensile and torsion. Different tests measure the shape recovery of Cu-Al-Ni single crystals wires during heating from room temperature to a temperature higher than temperature of end of martensitic transformation

Optical correlation based on the fractional Fourier transform

Some properties of optical correlation based on the fractional Fourier transform are analyzed. For a particular set of fractional orders, a filter is obtained that becomes insensitive to scale variations of the object. An optical configuration is also proposed to carry out the fractional correlation in a flexible way, and some experimental results are shown.Digitalizado en SEDICI-CIC Digital

Optical correlation based on the fractional Fourier transform

Some properties of optical correlation based on the fractional Fourier transform are analyzed. For a particular set of fractional orders, a filter is obtained that becomes insensitive to scale variations of the object. An optical configuration is also proposed to carry out the fractional correlation in a flexible way, and some experimental results are shown.Material digitalizado en SEDICI-CIC Digital gracias a la Centro de Investigaciones Opticas (CIOP), UNLP-CICCentro de Investigaciones ÓpticasFacultad de IngenieríaFacultad de Ciencias Exacta