26 papers · ranked by Valyu relevance
Samuel Gunz, Helena L. Crowell, Mark D. Robinson
Spatial omics technologies enable high-resolution, large-scale quantification of molecular features while preserving the spatial context within tissues. Existing analysis methods largely focus on spatial arrangements of single cells, whereas biological function often emerges from multicellular arrangements. Here, we…
Jiayu Su, Jean-Baptiste Reynier, Xi Fu, Guojie Zhong + 7 more
Spatial omics technologies can help identify spatially organized biological processes, but existing computational approaches often overlook structural dependencies in the data. Here, we introduce Smoother, a unified framework that integrates positional information into non-spatial models via modular priors and losses.…
Bin Jiang, Chris de Rijke
What is needed is to develop a new mathematics of order and structure. This requires an extensive study, in which one slowly and carefully 'feels one's way' into the subject. It cannot properly be done solely by applying existing mathematics, because the latter does not have the right general structure.
Yu Tian, Chinmayi Subramanya, Carl D. Modes
Spatially embedded networks are central to many physical and biological systems, where geometry and connectivity jointly shape structure and function. Examples abound across the scales of biological organization, from network-like membrane-bound organelles in the cell to mesoscale tissue organization of multiple…
Taiping Zeng, Ming Bo Cai
The representation of geometric structures of one’s surroundings is key to self-localization during human spatial navigation. However, the spatial organization of geometry representation in the visual system has not been fully characterized. By modeling the synchronized brain activity from participants watching…
Bin Jiang, Chris de Rijke
According to Gestalt theory, any image is perceived subconsciously as a coherent structure (or whole) with two contrast substructures: figure and ground. The figure consists of numerous auto-generated substructures with an inherent hierarchy of far more smalls than larges. Through these substructures, the structural…
Kate J. Jeffery
The cognitive map, proposed by Tolman in the 1940s, is a hypothetical internal representation of space constructed by the brain to enable an animal to undertake flexible spatial behaviors such as navigation. The subsequent discovery of place cells in the hippocampus of rats suggested that such a map-like representation…
Michael Peer, Russell A. Epstein
Many of the environments that we navigate through every day are hierarchically organized—they consist of spaces nested within other spaces. How do our mind/brains represent such environments? To address this question, we familiarized participants with a virtual environment consisting of a building within a courtyard…
Benjamin Pitt, Daniel Casasanto
People use space (e.g., left-right, up-down) to think about a variety of non-spatial concepts like time, number, similarity, and emotional valence. These spatial metaphors can be used to inform the design of user interfaces, which visualize many of these concepts in space. Traditionally, researchers have relied on…
Felichism Kabo, Umberto Baresi
Site selection is a complex, multicriteria process and a key if poorly understood contributor to the success of new scientific facilities. Typical site selection factors include the budget, sustainability, accessibility, utility and infrastructure costs, and environmental factors, e.g., air quality. Ideally, site…
Yinyuan Zheng, Bryan Matlen, Dedre Gentner
Visual comparison is a key process in everyday learning and reasoning. Recent research has discovered the spatial alignment principle, based on the broader framework of structure-mapping theory in comparison. According to the spatial alignment principle, visual comparison is more efficient when the figures being…
Authors not listed
Hyperstructures and their hierarchical extensions—SuperHyperStructures—provide a versatile algebraic language for modeling multi-level and interdependent systems [1,2]. In materials and chemical sciences, structural descriptions naturally span a broad spectrum of characteristic length scales, commonly organized as…
Xiaomin Jiang, Yangfei Huang, Feng Zhang, Ding Ma + 1 more
The study of spatial geometric similarity plays a significant role in spatial data retrieval. Many researchers have examined spatial geometric similarity, which is useful for spatial analysis and data retrieval. However, the majority of them focused on objects of the same type. Methods to support the spatial geometric…
Lilian LeVinh, Hanspeter A. Mallot
Humans spontaneously structure spatial environments into a hierarchy of regions. Besides connectivity and boundaries, sensory or functional similarities of landmarks have been shown to influence construction of regions. In natural spaces, regions and places are usually named and these names provide additional cues for…
Lionel Zoubritzky, François-Xavier Coudert
We present here an open-source Julia library for the topological identification of crystalline materials, with algorithmic and computational improvements over the previously available software in the field, resulting in a speed increase of one order of magnitude. This new algorithm and implementation can therefore be…
Tianyu Wang, Miaomiao Liu, Kee Siong Ng
We tackle the problem of object-centric learning on point clouds, which is crucial for high-level relational reasoning and scalable machine intelligence. In particular, we introduce a framework, SPAIR3D , to factorize a 3D point cloud into a spatial mixture model where each component corresponds to one object. To model…
Xiaojie Feng, Manuel Wolff
This study mainly aims to investigate the spatial distribution characteristics and accessibility of the Weibei Imperial Mausoleum Protection Zone, and gain a deeper understanding of cultural heritage preservation and urban planning in this area. Settlements represent areas where people reside over the long term…
Corentin Dufourg, Charlotte Pelletier, Stéphane May, Sébastien Lefèvre
'Sébastien Lefèvre'] The Earth's surface is subject to complex and dynamic processes, ranging from large-scale phenomena such as tectonic plate movements to localized changes associated with ecosystems, agriculture, or human activity. Satellite images enable global monitoring of these processes with extensive spatial…
Authors not listed
Scope: I introduce a reproducible, closed-surface mapping of the periodic system onto a sphere with a single equatorial ring, yielding a symmetric alternative to 2D layouts. The construction partitions the sphere into belts that match the cardinalities of the s/p/d/f blocks (2/6/10/14), places lanthanoids and actinoids…
Gabriel Ramos-Fernandez, Ross S. Walker, Matthew J. Silk, Denis Boyer + 1 more
'Denis Boyer' 'Sandra E. Smith-Aguilar'] Collectives are often able to process information in a distributed fashion, surpassing each individual member's processing capacity. In fission-fusion dynamics, where group members come together and split from others often, sharing complementary information about uniquely known…
Xiaoliang Luo, Robert M. Mok, Bradley C. Love
Discoveries of functional cell types, exemplified by the cataloging of spatial cells in the hippocampal formation, are heralded as scientific breakthroughs. We question whether the identification of cell types based on human intuitions has scientific merit and suggest that “spatial cells” may arise in non-spatial…
Authors not listed
Layered crystal structures are commonly found across organic and inorganic material systems. When in-plane atomic arrangement remains (nearly) identical, a stacking variation of these layers may result in twinning, planar disorder, or polytypes, a form of polymorphism derived from altering stacking sequences. In this…
Yu Sheng, Jiajun Deng, Xinran Zhang, Yu Zhang + 3 more
Overview. As illustrated in Fig.2, SpatialSplat leverages a standard Vision Transformer (ViT) backbone with a few Dense Prediction Transformer (DPT) heads. Given V unposed images at resolution H × W with their intrinsics {I v , Kv } V v=1, SpatialSplat learn a mapping fθ parameterd by θ that transforms the input images…
Sterling G. Baird, Eric R. Homer, David T. Fullwood, Oliver K. Johnson
We apply a newly developed Voronoi fundamental zone (VFZ) framework to gain insights about grain boundary (GB) structure-property relationships in the five degree-of-freedom (5DOF) space of cubic GBs. We analyze the shape and size of a 5DOF fundamental zone (FZ), molecular statics energy uncertainty, property…
Authors not listed
Previously we posited that a systematic and general description of stereoisomerism could be based upon the principles of the polytopal rearrangement model. The most daunting challenge to this end is to comprehensively describe all possible geometries for arbitrary n-coordinate centres, ABn, and for this we have…
Isa Zappullo, Massimiliano Conson, Petra Jansen, Irene C. Mammarella + 1 more
'Luigi Trojano'] Visuospatial cognition covers a wide range of non-verbal cognitive abilities that are pivotal for enabling individuals to interact with the environment effectively, and are strongly linked to drawing and assembling (visuoconstructional) activities. This link is evident both in childhood, when the…