Extracting document relationships by analyzing user's activity history

2013 ◽  
Author(s):  
Akira Karasudani ◽  
Satoshi Iwata ◽  
Tatsuro Matsumoto ◽  
Hirokazu Aritake
Keyword(s):  
Document Relationships

scholarly journals Street Food Stand Availability, Density, and Distribution Across Income Levels in Mexico City

2021 ◽  
Vol 18 (8) ◽  
pp. 3953
Author(s):  
Jose B. Rosales Chavez ◽  
Meg Bruening ◽  
Punam Ohri-Vachaspati ◽  
Rebecca E. Lee ◽  
Megan Jehn
Keyword(s):  
Mexico City ◽  
Food Environment ◽  
Local School ◽  
Middle Income ◽  
Street Food ◽  
Income Levels ◽  
Rigorous Approach ◽  
Ground Truthing ◽  
Document Relationships ◽  
Street Segments

Street food stands (SFS) are an understudied element of the food environment. Previous SFS studies have not used a rigorous approach to document the availability, density, and distribution of SFS across neighborhood income levels and points of access in Mexico City. A random sample (n = 761) of street segments representing 20 low-, middle-, and high-income neighborhoods were assessed using geographic information system (GIS) and ground-truthing methods. All three income levels contained SFS. However, SFS availability and density were higher in middle-income neighborhoods. The distribution of SFS showed that SFS were most often found near homes, transportation centers, and worksites. SFS availability near schools may have been limited by local school policies. Additional studies are needed to further document relationships between SFS availability, density, and distribution, and current structures and processes.

Metatarsus adductus and selected radiographic measurements of the first ray in normal feet

1992 ◽  
Vol 82 (12) ◽  
pp. 616-622 ◽  
Author(s):  
TA Griffiths ◽  
SJ Palladino
Keyword(s):  
Normal Values ◽  
Valgus Deformity ◽  
The Other ◽  
Radiographic Evaluation ◽  
Intermetatarsal Angle ◽  
Radiographic Measurements ◽  
First Ray ◽  
Metatarsus Adductus ◽  
Document Relationships

Radiographic evaluation of hallux abducto valgus frequently involves the measurement of the metatarsus adductus angle, first-second intermetatarsal angle, hallux abductus angle, and proximal articular set angle. While the concept that there is a relationship between untreated metatarsus adductus and hallux abducto valgus deformity is not new, a quantifiable relationship between the metatarsus adductus angle and intermetatarsal angle, hallux abductus angle, and the proximal articular set angle in normal feet is relatively undocumented. The purpose of this study is to document relationships between the metatarsus adductus angle and the other three measurements, and to establish normal values for the intermetatarsal angle, hallux abductus angle, and proximal articular set angle within metatarsus adductus angle subgroups.

TOPICVIEW: VISUAL ANALYSIS OF TOPIC MODELS AND THEIR IMPACT ON DOCUMENT CLUSTERING

2013 ◽  
Vol 22 (05) ◽  
pp. 1360008 ◽  
Author(s):  
PATRICIA J. CROSSNO ◽  
ANDREW T. WILSON ◽  
TIMOTHY M. SHEAD ◽  
WARREN L. DAVIS ◽  
DANIEL M. DUNLAVY
Keyword(s):  
Visual Analytics ◽  
Semantic Analysis ◽  
Visual Analysis ◽  
Document Clustering ◽  
Topic Models ◽  
Analysis Tool ◽  
Model Assessment ◽  
Text Corpora ◽  
The Impact ◽  
Document Relationships

We present a new approach for analyzing topic models using visual analytics. We have developed TopicView, an application for visually comparing and exploring multiple models of text corpora, as a prototype for this type of analysis tool. TopicView uses multiple linked views to visually analyze conceptual and topical content, document relationships identified by models, and the impact of models on the results of document clustering. As case studies, we examine models created using two standard approaches: Latent Semantic Analysis (LSA) and Latent Dirichlet Allocation (LDA). Conceptual content is compared through the combination of (i) a bipartite graph matching LSA concepts with LDA topics based on the cosine similarities of model factors and (ii) a table containing the terms for each LSA concept and LDA topic listed in decreasing order of importance. Document relationships are examined through the combination of (i) side-by-side document similarity graphs, (ii) a table listing the weights for each document's contribution to each concept/topic, and (iii) a full text reader for documents selected in either of the graphs or the table. The impact of LSA and LDA models on document clustering applications is explored through similar means, using proximities between documents and cluster exemplars for graph layout edge weighting and table entries. We demonstrate the utility of TopicView's visual approach to model assessment by comparing LSA and LDA models of several example corpora.

Becoming

2021 ◽  
Vol 2 (1) ◽  
pp. 5-12
Author(s):  
Robin M. Boylorn ◽  
Mark P. Orbe
Keyword(s):  
Special Issue ◽  
Critical Reflexivity ◽  
Critical Autoethnography ◽  
Document Relationships

In this introduction to the special issue the authors craft a critical autoethnography to chronicle their relationship and/to critical autoethnography. They use Michelle Obama’s book and documentary Becoming to reflect on how the critical reflexivity inherent in autoethnographic work can be used to document relationships, moments of revelation, and self-empowerment. They then preview four articles that map experiences of becoming linked to racialized identity, disability, and family.

scholarly journals An introduction to Caladenia R.Br. - Australasia's jewel among terrestrial orchids

2009 ◽  
Vol 57 (4) ◽  
pp. ii ◽  
Author(s):  
Kingsley W. Dixon ◽  
Stephen D. Hopper
Keyword(s):  
Molecular Phylogenetics ◽  
Australasian Plant ◽  
Species Number ◽  
Second Phase ◽  
Plant Systematics ◽  
Ecological Sensitivity ◽  
Diverse Range ◽  
Terrestrial Orchids ◽  
Threatened Taxa ◽  
Document Relationships

Caladenia is a genus of more than 250 species of geophytic orchids in the Tribe Diurideae endemic to the Australasian Region. The genus in this broad sense has an exceptional diversity of insect pollination adaptations among its colourfully adorned species, from food-rewarding generalists to specialists achieving pollination by sexual deception of male thynnid wasps. The exploration of diversity in Caladenia involves many of the great names in the foundation of Australasian plant systematics, as well as reflecting a remarkable second phase of discovery and description over the past three decades. Molecular phylogenetics has greatly clarified relationships of Caladenia and established six major clades within the genus. Some researchers regard these clades as genera themselves, whereas they are treated as subgenera herein to maximise nomenclatural stability and information retrieval. More work is needed to adequately document relationships within each of these clades, and disputed matters of typification greatly influence nomenclature applied to many species if the six clades are recognised as genera. Given the relatively recent and ongoing discovery of so many new species in Caladenia, the biology of these orchids is only now being documented comprehensively. Significant advances in pollination ecology, mycorrhizal studies, horticulture and conservation biology are emerging that highlight the extraordinary ecological sensitivity and conservation vulnerability of the genus. Indeed, the high species number and complex biotic connections have resulted in no other genus of terrestrial orchids possessing such a large number of rare and threatened taxa. Some of this rich body of new data is presented by a diverse range of laboratories and researchers in this special issue.

scholarly journals Results from the International Halocarbons in Air Comparison Experiment (IHALACE)

2013 ◽  
Vol 6 (4) ◽  
pp. 8021-8069 ◽  
Author(s):  
B. D. Hall ◽  
A. Engel ◽  
J. Mühle ◽  
J. W. Elkins ◽  
F. Artuso ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Trace Gases ◽  
Air Samples ◽  
Comparison Experiment ◽  
Atmospheric Data ◽  
Common Scale ◽  
Communication And Coordination ◽  
Document Relationships ◽  
Good Agreement

Abstract. The International Halocarbons in Air Comparison Experiment (IHALACE) was conducted to document relationships between calibration scales among various laboratories that measure atmospheric greenhouse and ozone depleting gases. Six stainless steel cylinders containing natural and modified natural air samples were circulated among 19 laboratories. Results from this experiment reveal relatively good agreement among commonly used calibration scales for a number of trace gases present in the unpolluted atmosphere at pmol mol−1 (parts per trillion) levels, such as chlorofluorocarbons (CFCs), hydrochlorofluorocarbons (HCFCs), and hydrofluorocarbons (HFCs). Some scale relationships were found to be consistent with those derived from bi-lateral experiments or from analysis of atmospheric data, while others revealed discrepancies. The transfer of calibration scales among laboratories was found to be problematic in many cases, meaning that measurements tied to a common scale may not, in fact, be compatible. These results reveal substantial improvements in calibration over previous comparisons. However there is room for improvement in communication and coordination of calibration activities with respect to the measurement of halogenated and related trace gases.

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