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Journal articles on the topic 'Spatio-temporal relations and motion events'

Author: Grafiati

Published: 4 June 2021

Last updated: 2 February 2022

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1

Salamat, Nadeem, and El-hadi Zahzah. "Spatiotemporal Relations and Modeling Motion Classes by Combined Topological and Directional Relations Method." ISRN Machine Vision 2012 (May 16, 2012): 1–11. http://dx.doi.org/10.5402/2012/872687.

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Defining spatiotemporal relations and modeling motion events are emerging issues of current research. Motion events are the subclasses of spatiotemporal relations, where stable and unstable spatio-temporal topological relations and temporal order of occurrence of a primitive event play an important role. In this paper, we proposed a theory of spatio-temporal relations based on topological and orientation perspective. This theory characterized the spatiotemporal relations into different classes according to the application domain and topological stability. This proposes a common sense reasoning

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Özyürek, Aslı, Sotaro Kita, Shanley E. M. Allen, Reyhan Furman, and Amanda Brown. "How does linguistic framing of events influence co-speech gestures?" Gestural Communication in Nonhuman and Human Primates 5, no. 1-2 (2005): 219–40. http://dx.doi.org/10.1075/gest.5.1.15ozy.

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What are the relations between linguistic encoding and gestural representations of events during online speaking? The few studies that have been conducted on this topic have yielded somewhat incompatible results with regard to whether and how gestural representations of events change with differences in the preferred semantic and syntactic encoding possibilities of languages. Here we provide large scale semantic, syntactic and temporal analyses of speech- gesture pairs that depict 10 different motion events from 20 Turkish and 20 English speakers. We find that the gestural representations of t

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Özyürek, Aslı, Sotaro Kita, Shanley Allen, Reyhan Furman, and Amanda Brown. "How does linguistic framing of events influence co-speech gestures?: Insights from crosslinguistic variations and similarities." Gesture 5, no. 1-2 (2005): 219–40. http://dx.doi.org/10.1075/gest.5.1-2.15ozy.

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What are the relations between linguistic encoding and gestural representations of events during online speaking? The few studies that have been conducted on this topic have yielded somewhat incompatible results with regard to whether and how gestural representations of events change with differences in the preferred semantic and syntactic encoding possibilities of languages. Here we provide large scale semantic, syntactic and temporal analyses of speech- gesture pairs that depict 10 different motion events from 20 Turkish and 20 English speakers. We find that the gestural representations of t

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Chen, Jin-ming, Shi-xiang Gu, Ru-cheng Jiang, Gui-hua Lu, Zhi-yong Wu, and Xuan-xuan Du. "The relationship between Pacific SSTA and Autumn Extreme Precipitation Events of China." MATEC Web of Conferences 246 (2018): 02056. http://dx.doi.org/10.1051/matecconf/201824602056.

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Based on 610 Meteorological stations daily precipitation datasets in China and NCEP/NCAR reanalysis datasets and NOAA reconstruct sea surface temperature from 1960~2009, the spatial and temporal coupling relationships between the Pacific SSTA and extreme precipitation events (EPE) are analyzed by using Singular Value of Decomposition method. Moreover, possible effect mechanism of Pacific SSTA for EPE is also discussed, the results are as follows: They are remarkable relations between equator middle-east Pacific ocean (EMEPO) SSTA and EPE. In anomaly cold years of EMEPO, compel 500hPa height fi

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Niemz, Peter, Simone Cesca, Sebastian Heimann, et al. "Full-waveform-based characterization of acoustic emission activity in a mine-scale experiment: a comparison of conventional and advanced hydraulic fracturing schemes." Geophysical Journal International 222, no. 1 (2020): 189–206. http://dx.doi.org/10.1093/gji/ggaa127.

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SUMMARY Understanding fracturing processes and the hydromechanical relation to induced seismicity is a key question for enhanced geothermal systems (EGS). Commonly massive fluid injection, predominately causing hydroshearing, are used in large-scale EGS but also hydraulic fracturing approaches were discussed. To evaluate the applicability of hydraulic fracturing techniques in EGS, six in situ, multistage hydraulic fracturing experiments with three different injection schemes were performed under controlled conditions in crystalline rock at the Äspö Hard Rock Laboratory (Sweden). During the exp

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Laptev, Ivan, Barbara Caputo, Christian Schüldt, and Tony Lindeberg. "Local velocity-adapted motion events for spatio-temporal recognition." Computer Vision and Image Understanding 108, no. 3 (2007): 207–29. http://dx.doi.org/10.1016/j.cviu.2006.11.023.

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Zheng, K., D. Gu, F. Fang, et al. "VISUALIZATION OF SPATIO-TEMPORAL RELATIONS IN MOVEMENT EVENT USING MULTI-VIEW." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-2/W7 (September 14, 2017): 1469–76. http://dx.doi.org/10.5194/isprs-archives-xlii-2-w7-1469-2017.

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Spatio-temporal relations among movement events extracted from temporally varying trajectory data can provide useful information about the evolution of individual or collective movers, as well as their interactions with their spatial and temporal contexts. However, the pure statistical tools commonly used by analysts pose many difficulties, due to the large number of attributes embedded in multi-scale and multi-semantic trajectory data. The need for models that operate at multiple scales to search for relations at different locations within time and space, as well as intuitively interpret what

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Zhang, Chen, Zhengyu Xia, and Joohee Kim. "Video Object Detection Using Event-Aware Convolutional Lstm and Object Relation Networks." Electronics 10, no. 16 (2021): 1918. http://dx.doi.org/10.3390/electronics10161918.

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Common video-based object detectors exploit temporal contextual information to improve the performance of object detection. However, detecting objects under challenging conditions has not been thoroughly studied yet. In this paper, we focus on improving the detection performance for challenging events such as aspect ratio change, occlusion, or large motion. To this end, we propose a video object detection network using event-aware ConvLSTM and object relation networks. Our proposed event-aware ConvLSTM is able to highlight the area where those challenging events take place. Compared with tradi

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Liu, Gang, Qinjin Fan, Weile Li, et al. "Spatio-temporal network modelling and analysis of global strong earthquakes (Mw ≥ 6.0)." Journal of the Geological Society 177, no. 5 (2020): 883–92. http://dx.doi.org/10.1144/jgs2019-151.

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We employ a spatio-temporal network modelling approach to identify possible relations between strong earthquakes and spatial regions worldwide. A global strong earthquake dataset containing 7736 events (Mw ≥ 6.0) from 1964 to 2018 is used. Statistical results identify power-law relationships and heavy tail phenomena in the spatial patterns of strong earthquakes. The interactions between regions follow the same law, with a few regions that may be hit by successive strong earthquakes with high probability. Also, we find that the interconnections between regions are mainly related to the successi

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McCune, Lorraine, and Ellen Herr-Israel. "Infant single words for dynamic events predict early verb meanings." Cognitive Linguistics 30, no. 4 (2019): 629–53. http://dx.doi.org/10.1515/cog-2018-0087.

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Abstract Do children’s single words related to motion and change also encode aspects of environmental events highlighted by Talmy’s motion event analysis? If so, these meanings may predict children’s early verb meanings. Analyzing the kinds of meanings expressed in single “dynamic event words” through motion event semantics yields links between early true verbs in sentences and the semantics encoded in these single words. Dynamic event words (e.g., more, allgone, out, down) reflect the sense of temporal and spatial reversibility established in the late sensorimotor period. We propose that thes

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Patil, N., and Prabir Kumar Biswas. "Global abnormal events detection in crowded scenes using context location and motion-rich spatio-temporal volumes." IET Image Processing 12, no. 4 (2018): 596–604. http://dx.doi.org/10.1049/iet-ipr.2017.0367.

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Schwalbe, Ellen, and Hans-Gerd Maas. "The determination of high-resolution spatio-temporal glacier motion fields from time-lapse sequences." Earth Surface Dynamics 5, no. 4 (2017): 861–79. http://dx.doi.org/10.5194/esurf-5-861-2017.

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Abstract. This paper presents a comprehensive method for the determination of glacier surface motion vector fields at high spatial and temporal resolution. These vector fields can be derived from monocular terrestrial camera image sequences and are a valuable data source for glaciological analysis of the motion behaviour of glaciers. The measurement concepts for the acquisition of image sequences are presented, and an automated monoscopic image sequence processing chain is developed. Motion vector fields can be derived with high precision by applying automatic subpixel-accuracy image matching

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Teufl, Wolfgang, Michael Lorenz, Markus Miezal, Bertram Taetz, Michael Fröhlich, and Gabriele Bleser. "Towards Inertial Sensor Based Mobile Gait Analysis: Event-Detection and Spatio-Temporal Parameters." Sensors 19, no. 1 (2018): 38. http://dx.doi.org/10.3390/s19010038.

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The aim of this study was to assess the validity and test-retest reliability of an inertial measurement unit (IMU) system for gait analysis. Twenty-four healthy subjects conducted a 6-min walking test and were instrumented with seven IMUs and retroreflective markers. A kinematic approach was used to estimate the initial and terminal contact events in real-time. Based on these events twelve spatio-temporal parameters (STP) were calculated. A marker based optical motion capture (OMC) system provided the reference. Event-detection rate was about 99%. Detection offset was below 0.017 s. Relative r

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Phipps, Ronald Preston. "Emergence! (The Ontological Conjecture)." Tattva - Journal of Philosophy 5, no. 1 (2013): 141–45. http://dx.doi.org/10.12726/tjp.9.9.

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Ours is a vacuumless universe - Character and Potential pervade The spatio-temporal manifold! The manifold is discretely divided As the ancients foretold By atomicity, by discreteness amid continuity! Atomicity embedded within atomic occasions Events emerging as a confluence of Antecedent events! The character and relations within that nexus Constituent of an occasion’s causal past Determine the characteristics and relations Which ingress within the atomic event! As character ingresses into an atomic occasion, Bounded by spatial magnitude and temporal durati

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Zaki, Chamseddine, Mohamed Ayet, and Allah Bilel Soussi. "Modeling for application data with 3D spatiale feature in MADS." Revue Internationale de Géomatique 29, no. 3-4 (2019): 255–62. http://dx.doi.org/10.3166/rig.2019.00086.

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A conceptual spatiotemporal data model must be able to offer users a semantic richness of expression to meet their diverse needs concerning the modeling of spatio-temporal data. The conceptual spatiotemporal data model must be able to represent the objects, relationships and events that can occur in a field of study, track data history, support the multi-representation of these data, and represent temporal and spatial data with two and three dimensions features. The model must also allow the assignment of different types of constraints to relations and provide a complete orthogonality between

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Chen, Haosheng, David Suter, Qiangqiang Wu, and Hanzi Wang. "End-to-End Learning of Object Motion Estimation from Retinal Events for Event-Based Object Tracking." Proceedings of the AAAI Conference on Artificial Intelligence 34, no. 07 (2020): 10534–41. http://dx.doi.org/10.1609/aaai.v34i07.6625.

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Event cameras, which are asynchronous bio-inspired vision sensors, have shown great potential in computer vision and artificial intelligence. However, the application of event cameras to object-level motion estimation or tracking is still in its infancy. The main idea behind this work is to propose a novel deep neural network to learn and regress a parametric object-level motion/transform model for event-based object tracking. To achieve this goal, we propose a synchronous Time-Surface with Linear Time Decay (TSLTD) representation, which effectively encodes the spatio-temporal information of a

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Vatsaraj, Meenal Suryakant, Rajan Vishnu Parab, and D. S. Bade. "ANOMALY DETECTION OF EVENTS IN CROWDED ENVIRONMENT AND STUDY OF VARIOUS BACKGROUND SUBTRACTION METHODS." International Journal of Students' Research in Technology & Management 5, no. 1 (2017): 32. http://dx.doi.org/10.18510/ijsrtm.2017.517(1).

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Anomalous behavior detection and localization in videos of the crowded area that is specific from a dominant pattern are obtained. Appearance and motion information are taken into account to robustly identify different kinds of an anomaly considering a wide range of scenes. Our concept based on a histogram of oriented gradients and Markov random field easily captures varying dynamic of the crowded environment.Histogram of oriented gradients along with well-known Markov random field will effectively recognize and characterizes each frame of each scene. Anomaly detection using artificial neural

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Vatsaraj, Meenal Suryakant, Rajan Vishnu Parab, and Prof D. S. Bade. "ANOMALY DETECTION OF EVENTS IN CROWDED ENVIRONMENT AND STUDY OF VARIOUS BACKGROUND SUBTRACTION METHODS." International Journal of Students' Research in Technology & Management 5, no. 1 (2017): 32. http://dx.doi.org/10.18510/ijsrtm.2017.517.

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Anomalous behavior detection and localization in videos of the crowded area that is specific from a dominant pattern are obtained. Appearance and motion information are taken into account to robustly identify different kinds of an anomaly considering a wide range of scenes. Our concept based on histogram of oriented gradients and markov random field easily captures varying dynamic of the crowded environment. Histogram of oriented gradients along with well known markov random field will effectively recognize and characterizes each frame of each scene. Anomaly detection using artificial neural n

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Chen, X., and R. E. Abercrombie. "Improved approach for stress drop estimation and its application to an induced earthquake sequence in Oklahoma." Geophysical Journal International 223, no. 1 (2020): 233–53. http://dx.doi.org/10.1093/gji/ggaa316.

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SUMMARY We calculate source parameters for fluid-injection induced earthquakes near Guthrie, Oklahoma, guided by synthetic tests to quantify uncertainties. The average stress drop during an earthquake is a parameter fundamental to ground motion prediction and earthquake source physics, but it has proved hard to measure accurately. This has limited our understanding of earthquake rupture, as well as the spatio-temporal variations of fault strength. We use synthetic tests based on a joint spectral-fitting method to define the resolution limit of the corner frequency as a function of the maximum

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Parodi, A. "Dynamics of intense convective rain cells." Advances in Geosciences 2 (February 11, 2005): 1–6. http://dx.doi.org/10.5194/adgeo-2-1-2005.

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Abstract. Intense precipitation events are often convective in nature. A deeper understanding of the properties and the dynamics of convective rain cells is, therefore, necessary both from a physical and operational point of view. The aim of this work is to study the spatial-temporal properties of convective rain cells by using a fully parameterized nonhydrostatic code (Lokal Model) in simplified model configurations. High resolution simulations are performed and it is expected that the deep moist convection and the feedback mechanisms affecting larger scales of motion can then be resolved exp

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Huumo, Tuomas. "The grammar of temporal motion: A Cognitive Grammar account of motion metaphors of time." Cognitive Linguistics 28, no. 1 (2017): 1–43. http://dx.doi.org/10.1515/cog-2016-0015.

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AbstractRecent groundbreaking work in cognitive linguistics has revealed the semantic complexity of motion metaphors of time and of temporal frames of reference. In most approaches the focus has been on the clause-level metaphorical meaning of expressions, such as Moving Ego (We are approaching the end of the year) and Moving Time (both Ego-centered, as in The end of the year is approaching and field-based, as in Boxing Day follows Christmas Day). The detailed grammatical structure of these metaphorical expressions, on the other hand, has received less attention. Such details include both elem

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Konstantaras, Antonios. "Deep Learning and Parallel Processing Spatio-Temporal Clustering Unveil New Ionian Distinct Seismic Zone." Informatics 7, no. 4 (2020): 39. http://dx.doi.org/10.3390/informatics7040039.

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This research work employs theoretical and empirical expert knowledge in constructing an agglomerative parallel processing algorithm that performs spatio-temporal clustering upon seismic data. This is made possible by exploiting the spatial and temporal sphere of influence of the main earthquakes solely, clustering seismic events into a number of fuzzy bordered, interactive and yet potentially distinct seismic zones. To evaluate whether the unveiled clusters indeed depict a distinct seismic zone, deep learning neural networks are deployed to map seismic energy release rates with time intervals

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Meyer, Franz J. "Topography and displacement of polar glaciers from multi-temporal SAR interferograms." Polar Record 43, no. 4 (2007): 331–43. http://dx.doi.org/10.1017/s0032247407006742.

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ABSTRACTThis paper describes a new technique simultaneously to estimate topography and motion of polar glaciers from multi-temporal SAR interferograms. The approach is based on a combination of several SAR interferograms in a least-squares adjustment using the Gauss-Markov model. For connecting the multi-temporal data sets, a spatio-temporal model is proposed that describes the properties of the surface and its temporal evolution. Rigorous mathematical modelling of functional and stochastic relations allows for a systematic description of the processing chain. It is also an optimal tool to set

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HONING, HENKJAN. "IS THERE A PERCEPTION-BASED ALTERNATIVE TO KINEMATIC MODELS OFTEMPO RUBATO?" Music Perception 23, no. 1 (2005): 79–85. http://dx.doi.org/10.1525/mp.2005.23.1.79.

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THE RELATION BETWEEN MUSIC and motion has been a topic of much theoretical and empirical research. An important contribution is made by a family of computational theories, so-called kinematic models, that propose an explicit relation between the laws of physical motion in the real world and expressive timing in music performance. However, kinematic models predict that expressive timing is independent of (a) the number of events, (b) the rhythmic structure, and (c) the overall tempo of the performance. These factors have no effect on the predicted shape of a ritardando. Computer simulations of

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Jiménez, A., A. M. Posadas, and J. M. Marfil. "A probabilistic seismic hazard model based on cellular automata and information theory." Nonlinear Processes in Geophysics 12, no. 3 (2005): 381–96. http://dx.doi.org/10.5194/npg-12-381-2005.

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Abstract. We try to obtain a spatio-temporal model of earthquakes occurrence based on Information Theory and Cellular Automata (CA). The CA supply useful models for many investigations in natural sciences; here, it have been used to establish temporal relations between the seismic events occurring in neighbouring parts of the crust. The catalogue used is divided into time intervals and the region into cells, which are declared active or inactive by means of a certain energy release criterion (four criteria have been tested). A pattern of active and inactive cells which evolves over time is giv

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Clapuyt, François, Veerle Vanacker, Marcus Christl, Kristof Van Oost, and Fritz Schlunegger. "Spatio-temporal dynamics of sediment transfer systems in landslide-prone Alpine catchments." Solid Earth 10, no. 5 (2019): 1489–503. http://dx.doi.org/10.5194/se-10-1489-2019.

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Abstract. Tectonic and geomorphic processes drive landscape evolution over different spatial and temporal scales. In mountainous environments, river incision sets the pace of landscape evolution, and hillslopes respond to channel incision by, e.g., gully retreat, bank erosion, and landslides. Sediment produced during stochastic landslide events leads to mobilization of soil and regolith on the slopes that can later be transported by gravity and water to the river network during phases of hillslope–channel geomorphic coupling. The mechanisms and scales of sediment connectivity mitigate the prop

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Graves, Robert W. "Three-dimensional finite-difference modeling of the San Andreas fault: Source parameterization and ground-motion levels." Bulletin of the Seismological Society of America 88, no. 4 (1998): 881–97. http://dx.doi.org/10.1785/bssa0880040881.

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Abstract Olsen et al. (1995) recently simulated an Mw 7.75 earthquake on the San Andreas fault, predicting long-period (T &gt; 2.5 sec) ground velocities of 140 cm/sec in the Los Angeles basin, about 60 km from the fault. These motions are much larger than estimates derived from empirical relations or other numerical simulations. Standard area-magnitude relations predict that the 170 × 16 km fault used in the simulations would produce an Mw 7.5 earthquake, giving a moment of 2.0 × 1027 dyne-cm, which is 2.4 times smaller than the moment used by Olsen et al. (1995). Further, self-similar sc

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Sinha, Chris, Vera Da Silva Sinha, Jörg Zinken, and Wany Sampaio. "When time is not space: The social and linguistic construction of time intervals and temporal event relations in an Amazonian culture." Language and Cognition 3, no. 1 (2011): 137–69. http://dx.doi.org/10.1515/langcog.2011.006.

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AbstractIt is widely assumed that there is a natural, prelinguistic conceptual domain of time whose linguistic organization is universally structured via metaphoric mapping from the lexicon and grammar of space and motion. We challenge this assumption on the basis of our research on the Amondawa (Tupi Kawahib) language and culture of Amazonia. Using both observational data and structured field linguistic tasks, we show that linguistic space-time mapping at the constructional level is not a feature of the Amondawa language, and is not employed by Amondawa speakers (when speaking Amondawa). Amon

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Weiler, Julia, Boris Suchan, Benno Koch, Michael Schwarz, and Irene Daum. "Differential Impairment of Remembering the Past and Imagining Novel Events after Thalamic Lesions." Journal of Cognitive Neuroscience 23, no. 10 (2011): 3037–51. http://dx.doi.org/10.1162/jocn.2011.21633.

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Vividly remembering the past and imagining the future (mental time travel) seem to rely on common neural substrates and mental time travel impairments in patients with brain lesions seem to encompass both temporal domains. However, because future thinking—or more generally imagining novel events—involves the recombination of stored elements into a new event, it requires additional resources that are not shared by episodic memory. We aimed to demonstrate this asymmetry in an event generation task administered to two patients with lesions in the medial dorsal thalamus. Because of the dense conne

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Marković, Stefan, Anton Kos, Vesna Vuković, Milivoj Dopsaj, Nenad Koropanovski, and Anton Umek. "Use of IMU in Differential Analysis of the Reverse Punch Temporal Structure in Relation to the Achieved Maximal Hand Velocity." Sensors 21, no. 12 (2021): 4148. http://dx.doi.org/10.3390/s21124148.

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To achieve good performance, athletes need to synchronize a series of movements in an optimal manner. One of the indicators used to monitor this is the order of occurrence of relevant events in the movement timeline. However, monitoring of this characteristic of rapid movement is practically limited to the laboratory settings, in which motion tracking systems can be used to acquire relevant data. Our motivation is to implement a simple-to-use and robust IMU-based solution suitable for everyday praxis. In this way, repetitive execution of technique can be constantly monitored. This provides aug

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Cánovas, Cristóbal Pagán, and Max Flack Jensen. "Anchoring time-space mappings and their emotions: The timeline blend in poetic metaphors." Language and Literature: International Journal of Stylistics 22, no. 1 (2013): 45–59. http://dx.doi.org/10.1177/0963947012469751.

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Conceptual Integration theorists have recently revised the time is space conceptual metaphor, and proposed a more complex structure of mappings. The result of that network of mappings is a particular event of motion through space, conditioned by its goal to represent time. Coulson and Pagán Cánovas (forthcoming) have studied the timeline as a material anchor for this time-space blend. The timeline facilitates navigation of the time-space blend by presenting temporal relations directly as spatial relations. Through the analysis of Kavafis’ simile of life as a row of candles and Manrique’s metap

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MALLALIEU, JOSEPH, JONATHAN L. CARRIVICK, DUNCAN J. QUINCEY, MARK W. SMITH, and WILLIAM H. M. JAMES. "An integrated Structure-from-Motion and time-lapse technique for quantifying ice-margin dynamics." Journal of Glaciology 63, no. 242 (2017): 937–49. http://dx.doi.org/10.1017/jog.2017.48.

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ABSTRACTFine resolution topographic data derived from methods such as Structure from Motion (SfM) and Multi-View Stereo (MVS) have the potential to provide detailed observations of geomorphological change, but have thus far been limited by the logistical constraints of conducting repeat surveys in the field. Here, we present the results from an automated time-lapse camera array, deployed around an ice-marginal lake on the western margin of the Greenland ice sheet. Fifteen cameras acquired imagery three-times per day over a 426 day period, yielding a dataset of ~19 000 images. From these data w

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Dannenberg, Holger, Andrew S. Alexander, Jennifer C. Robinson, and Michael E. Hasselmo. "The Role of Hierarchical Dynamical Functions in Coding for Episodic Memory and Cognition." Journal of Cognitive Neuroscience 31, no. 9 (2019): 1271–89. http://dx.doi.org/10.1162/jocn_a_01439.

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Behavioral research in human verbal memory function led to the initial definition of episodic memory and semantic memory. A complete model of the neural mechanisms of episodic memory must include the capacity to encode and mentally reconstruct everything that humans can recall from their experience. This article proposes new model features necessary to address the complexity of episodic memory encoding and recall in the context of broader cognition and the functional properties of neurons that could contribute to this broader scope of memory. Many episodic memory models represent individual sn

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Meding, Kristof, Sebastian A. Bruijns, Bernhard Schölkopf, Philipp Berens, and Felix A. Wichmann. "Phenomenal Causality and Sensory Realism." i-Perception 11, no. 3 (2020): 204166952092703. http://dx.doi.org/10.1177/2041669520927038.

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One of the most important tasks for humans is the attribution of causes and effects in all wakes of life. The first systematical study of visual perception of causality—often referred to as phenomenal causality—was done by Albert Michotte using his now well-known launching events paradigm. Launching events are the seeming collision and seeming transfer of movement between two objects—abstract, featureless stimuli (“objects”) in Michotte’s original experiments. Here, we study the relation between causal ratings for launching events in Michotte’s setting and launching collisions in a photorealis

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Botne, Robert. "Motion time and tense on the grammaticalization of come and go to future markers in Bantu." Studies in African Linguistics 35, no. 2 (2006): 127–88. http://dx.doi.org/10.32473/sal.v35i2.107307.

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Many Bantu languages have grammaticized one or both types of motion verb -COME and GO - as future markers. However, they may differ in the semantics of future temporal reference, in some cases referring to a "near" future, in others to a "remote" future. This paper explores how the underlying image-schemas of such verbs in several languages - Bamileke-Dschang, Bamun, and Lamnso' (Grass fields Bantu), Duala, Chimwera, Chindali, Kihunde, and Zulu (Narrow Bantu) - contribute to how the verbs become grammaticized in relation to the dual construals of linguistic time: ego-moving vs. moving-event.

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Hamdi, Slim, Samir Bouindour, Hichem Snoussi, Tian Wang, and Mohamed Abid. "End-to-End Deep One-Class Learning for Anomaly Detection in UAV Video Stream." Journal of Imaging 7, no. 5 (2021): 90. http://dx.doi.org/10.3390/jimaging7050090.

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In recent years, the use of drones for surveillance tasks has been on the rise worldwide. However, in the context of anomaly detection, only normal events are available for the learning process. Therefore, the implementation of a generative learning method in an unsupervised mode to solve this problem becomes fundamental. In this context, we propose a new end-to-end architecture capable of generating optical flow images from original UAV images and extracting compact spatio-temporal characteristics for anomaly detection purposes. It is designed with a custom loss function as a sum of three ter

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Naka, Yoshitsugu, Michel Stanislas, Jean-Marc Foucaut, Sebastien Coudert, Jean-Philippe Laval, and Shinnosuke Obi. "Space–time pressure–velocity correlations in a turbulent boundary layer." Journal of Fluid Mechanics 771 (April 22, 2015): 624–75. http://dx.doi.org/10.1017/jfm.2015.158.

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The spatio-temporal pressure–velocity correlation in a turbulent boundary layer is investigated so as to understand the link between pressure fluctuations and turbulent coherent structures. A new experimental set-up is developed to measure the pressure fluctuations at the wall and in the field and, simultaneously, the velocity field by stereoscopic particle image velocimetry. The present measurement area covers the whole boundary layer thickness, and the spatial resolution of the measurement is good enough to assess the representative length scales of the flow. The Reynolds number effect is qu

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Vieli, Andreas, Jacek Jania, Heinz Blatter, and Martin Funk. "Short-term velocity variations on Hansbreen, a tidewater glacier in Spitsbergen." Journal of Glaciology 50, no. 170 (2004): 389–98. http://dx.doi.org/10.3189/172756504781829963.

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AbstractSpatial and temporal variations of the flow of Hansbreen, a tidewater glacier in southern Spitsbergen, Svalbard, are investigated. During summer 1999, surface flow velocities were measured in the ablation zone of Hansbreen with a temporal resolution of 1—2 hours. Short events with strongly increased surface velocities and a typical duration of 1—2 days were observed. These “speed-up events” are related to periods of strongly increased water input to the glacier, due to rainfall or enhanced surface melt. A close relation is found between the surface velocities and water pressure recorde

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Galiana, Eric, Celine Cohen, Philippe Thomen, Catherine Etienne, and Xavier Noblin. "Guidance of zoospores by potassium gradient sensing mediates aggregation." Journal of The Royal Society Interface 16, no. 157 (2019): 20190367. http://dx.doi.org/10.1098/rsif.2019.0367.

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The biflagellate zoospores of some phytopathogenic Phytophthora species spontaneously aggregate within minutes in suspension. We show here that Phytophthora parasitica zoospores can form aggregates in response to a K + gradient with a particular geometric arrangement. Using time-lapse live imaging in macro- and microfluidic devices, we defined (i) spatio-temporal and concentration-scale changes in the gradient, correlated with (ii) the cell distribution and (iii) the metrics of zoospore motion (velocity, trajectory). In droplets, we found that K + -induced aggregates resulted from a single bip

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TIEN, TRAN_THUONG, and CECILE ROISIN. "A MULTIMEDIA MODEL BASED ON STRUCTURED MEDIA AND SUB-ELEMENTS FOR COMPLEX MULTIMEDIA AUTHORING AND PRESENTATION." International Journal of Software Engineering and Knowledge Engineering 12, no. 05 (2002): 473–500. http://dx.doi.org/10.1142/s0218194002001037.

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Declarative definition of multimedia presentation such as provided by SMIL standard can be considered as the most significant advance in the multimedia integration domain. However, the requirements of a model that could express richer scenarios for presentations are always a challenge. The work presented here proposes an extended model based on the concept of structured media and sub-elements that allows a finer granularity and a more semantic specification of significant events and locations inside media fragments. The new media fragments can be composed in multimedia scenarios through the sp

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Pouw, Wim, James P. Trujillo, and James A. Dixon. "The quantification of gesture–speech synchrony: A tutorial and validation of multimodal data acquisition using device-based and video-based motion tracking." Behavior Research Methods 52, no. 2 (2019): 723–40. http://dx.doi.org/10.3758/s13428-019-01271-9.

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Abstract There is increasing evidence that hand gestures and speech synchronize their activity on multiple dimensions and timescales. For example, gesture’s kinematic peaks (e.g., maximum speed) are coupled with prosodic markers in speech. Such coupling operates on very short timescales at the level of syllables (200 ms), and therefore requires high-resolution measurement of gesture kinematics and speech acoustics. High-resolution speech analysis is common for gesture studies, given that field’s classic ties with (psycho)linguistics. However, the field has lagged behind in the objective study

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Woodward, James. "Supervenience and Singular Causal Statements." Royal Institute of Philosophy Supplement 27 (March 1990): 211–46. http://dx.doi.org/10.1017/s1358246100005129.

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In his recent book, Causation: A Realistic Approach, Michael Tooley discusses the following thesis, which he calls the ‘thesis of the Humean Supervenience of Causal Relations’:(T) The truth values of all singular causal statements are logically determined by the truth values of statements of causal laws, together with the truth values of non-causal statements about particulars (p. 182).(T) represents one version of the ‘Humean’ idea that there is no more factual content to the claim that two particular events are causally connected than that they occur, instantiate some law or regularity, and

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Dobie, Dougal, David L. Kaplan, Kenta Hotokezaka, et al. "Constraining properties of neutron star merger outflows with radio observations." Monthly Notices of the Royal Astronomical Society 494, no. 2 (2020): 2449–64. http://dx.doi.org/10.1093/mnras/staa789.

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ABSTRACT The jet opening angle and inclination of GW170817 – the first detected binary neutron star merger – were vital to understand its energetics, relation to short gamma-ray bursts, and refinement of the standard siren-based determination of the Hubble constant, H0. These basic quantities were determined through a combination of the radio light curve and Very Long Baseline Interferometry (VLBI) measurements of proper motion. In this paper, we discuss and quantify the prospects for the use of radio VLBI observations and observations of scintillation-induced variability to measure the source

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Zuo, Yanfang, Igor Perkon, and Mathew E. Diamond. "Whisking and whisker kinematics during a texture classification task." Philosophical Transactions of the Royal Society B: Biological Sciences 366, no. 1581 (2011): 3058–69. http://dx.doi.org/10.1098/rstb.2011.0161.

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Rats explore objects by rhythmically whisking with their vibrissae. The goal of the present study is to learn more about the motor output used by rats to acquire texture information as well as the whisker motion evoked by texture contact. We trained four rats to discriminate between different grooved textures and used high-speed video to characterize whisker motion during the task. The variance in whisking parameters among subjects was notable. After whisker trimming, the animals changed their behaviour in ways that appear consistent with an optimization of whisker movement to compensate for l

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Baker, Catherine. "The ‘gay Olympics’? The Eurovision Song Contest and the politics of LGBT/European belonging." European Journal of International Relations 23, no. 1 (2016): 97–121. http://dx.doi.org/10.1177/1354066116633278.

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The politics of gay and transgender visibility and representation at the Eurovision Song Contest, an annual televised popular music festival presented to viewers as a contest between European nations, show that processes of interest to Queer International Relations do not just involve states or even international institutions; national and transnational popular geopolitics over ‘lesbian, gay, bisexual and transgender rights’ and ‘Europeanness’ equally constitute the understandings of ‘the international’ with which Queer International Relations is concerned. Building on Cynthia Weber’s reading

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Eiter, Thomas, Ryutaro Ichise, Josiane Xavier Parreira, Patrik Schneider, and Lihua Zhao. "Deploying spatial-stream query answering in C-ITS scenarios1." Semantic Web 12, no. 1 (2020): 41–77. http://dx.doi.org/10.3233/sw-200408.

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Cooperative Intelligent Transport Systems (C-ITS) play an important role for providing the means to collect and exchange spatio-temporal data via V2X-based communication between vehicles and the infrastructure, which will become a central enabler for road safety of (semi)-autonomous vehicles. The Local Dynamic Map (LDM) is a key concept for integrating static and streamed data in a spatial context. The LDM has been semantically enhanced to allow for an elaborate domain model that is captured by a mobility ontology, and for queries over data streams that cater for semantic concepts and spatial

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Dubba, Krishna S. R., Anthony G. Cohn, David C. Hogg, Mehul Bhatt, and Frank Dylla. "Learning Relational Event Models from Video." Journal of Artificial Intelligence Research 53 (May 27, 2015): 41–90. http://dx.doi.org/10.1613/jair.4395.

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Event models obtained automatically from video can be used in applications ranging from abnormal event detection to content based video retrieval. When multiple agents are involved in the events, characterizing events naturally suggests encoding interactions as relations. Learning event models from this kind of relational spatio-temporal data using relational learning techniques such as Inductive Logic Programming (ILP) hold promise, but have not been successfully applied to very large datasets which result from video data. In this paper, we present a novel framework REMIND (Relational Event M

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Chmel, A., V. N. Smirnov, and L. V. Panov. "Scaling aspects of the sea-ice-drift dynamics and pack fracture." Ocean Science 3, no. 2 (2007): 291–98. http://dx.doi.org/10.5194/os-3-291-2007.

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Abstract. A study of the sea-ice dynamics in the periods of time prior to and during the cycles of basin-wide fragmentation of the ice cover in the Arctic Ocean is presented. The fractal geometry of the ice-sheets limited by leads and ridges was assessed using the satellite images, while the data on the correlated sea-ice motion were obtained in the research stations "North Pole 32" and "North Pole 33" established on the ice pack. The revealed decrease of the fractal dimension as a result of large-scale fragmentation is consistent with the localization of the fracture process (leads propagatio

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Chmel, A., V. N. Smirnov, and L. V. Panov. "Scaling aspects of the sea-ice-drift dynamics and pack fracture." Ocean Science Discussions 4, no. 1 (2007): 107–28. http://dx.doi.org/10.5194/osd-4-107-2007.

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Abstract. A study of the sea-ice dynamics in the periods of time prior to and during the cycles of basin-wide fragmentation of the ice cover in the Arctic Ocean is presented. The fractal geometry of the ice-sheets limited by leads and ridges was assessed using the satellite images, while the data on the correlated sea-ice motion were obtained in the research stations "North Pole 32" and "North Pole 33" established on the ice pack. The revealed decrease of the fractal dimension as a result of large-scale fragmentation is consistent with the localization of the fracture process (leads propagatio

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Peppa, M. V., J. P. Mills, P. Moore, P. E. Miller, and J. E. Chambers. "ACCURACY ASSESSMENT OF A UAV-BASED LANDSLIDE MONITORING SYSTEM." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLI-B5 (June 16, 2016): 895–902. http://dx.doi.org/10.5194/isprsarchives-xli-b5-895-2016.

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Landslides are hazardous events with often disastrous consequences. Monitoring landslides with observations of high spatio-temporal resolution can help mitigate such hazards. Mini unmanned aerial vehicles (UAVs) complemented by structure-from-motion (SfM) photogrammetry and modern per-pixel image matching algorithms can deliver a time-series of landslide elevation models in an automated and inexpensive way. This research investigates the potential of a mini UAV, equipped with a Panasonic Lumix DMC-LX5 compact camera, to provide surface deformations at acceptable levels of accuracy for landslid

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