In defense of classical semantic maps

2008 ◽  
Vol 34 (1) ◽  
pp. 39-46 ◽  
Author(s):  
Johan Van Der Auwera
Linguistics ◽  
2019 ◽  
Author(s):  
Thanasis Georgakopoulos

A semantic map is a method for visually representing cross-linguistic regularity or universality in semantic structure. This method has proved attractive to typologists because it provides a convenient graphical display of the interrelationships between meanings or functions across languages, while (at the same time) differentiating what is universal from what is language-specific. The semantic map model was initially conceived to describe patterns of polysemy (or, more generally, of co-expression) in grammatical categories. However, several studies have shown that it can be fruitfully extended to lexical items and even constructions, suggesting that any type of meaning can be integrated in a map. The main idea of the method is that the spatial arrangement of the various meanings reflects their degree of (dis)similarity: the more similar the meanings, the closer they are placed—in accordance with the so-called connectivity hypothesis. Within the semantic map tradition, closeness has taken different forms depending on the approach adopted. In classical semantic maps (alternative terms: “first generation,” “implicational,” “connectivity” maps), the relation between meanings is represented as a line. This is the graph-based approach. In proximity maps (alternative terms: “similarity,” “second generation,” “statistical,” “probabilistic” maps), the distance between two meanings in space— represented as points—indicates the degree of their similarity. In this scale- or distance-based approach, the maps are constructed using multivariate statistical techniques, including the family of methods known as multidimensional scaling (MDS). Both classical and proximity maps have been widely used, although the latter have recently gained interest and popularity under the assumption that they can cope with large data more efficiently than classical semantic maps. However, classical semantic maps continue to be useful for studies aiming to discover universal semantic structures. Most importantly, classical maps can integrate information about directionality of change by drawing an arrow on the line connecting two meanings or functions. Beyond the choice between the two types of maps, one of the issues that has sparked debate and critical reflection among researchers is the universal relevance of semantic maps. The main question that these researchers address is whether semantic maps reflect the global geography of the human mind. Another much discussed issue is the identification of the factors that increase the accuracy of semantic maps in a way that allows for valid cross‐linguistic generalizations. Such factors include the choice of a representative language sample, the quality of the collected cross‐linguistic material, and the establishment of valid cross-linguistic comparators. Acknowledgments: The author wishes to thank one anonymous reviewer for their useful comments. For discussion of the material in this article, the author is grateful to Stéphane Polis.


Information ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 92
Author(s):  
Xiaoning Han ◽  
Shuailong Li ◽  
Xiaohui Wang ◽  
Weijia Zhou

Sensing and mapping its surroundings is an essential requirement for a mobile robot. Geometric maps endow robots with the capacity of basic tasks, e.g., navigation. To co-exist with human beings in indoor scenes, the need to attach semantic information to a geometric map, which is called a semantic map, has been realized in the last two decades. A semantic map can help robots to behave in human rules, plan and perform advanced tasks, and communicate with humans on the conceptual level. This survey reviews methods about semantic mapping in indoor scenes. To begin with, we answered the question, what is a semantic map for mobile robots, by its definitions. After that, we reviewed works about each of the three modules of semantic mapping, i.e., spatial mapping, acquisition of semantic information, and map representation, respectively. Finally, though great progress has been made, there is a long way to implement semantic maps in advanced tasks for robots, thus challenges and potential future directions are discussed before a conclusion at last.


1984 ◽  
Vol 8 (2) ◽  
pp. 63-66 ◽  
Author(s):  
C.P.R. Dubois

The controlled vocabulary versus the free text approach to information retrieval is reviewed from the mid 1960s to the early 1980s. The dominance of the free text approach following the Cranfield tests is increasingly coming into question as a result of tests on existing online data bases and case studies. This is supported by two case studies on the Coffeeline data base. The differences and values of the two approaches are explored considering thesauri as semantic maps. It is suggested that the most appropriate evaluatory technique for indexing languages is to study the actual use made of various techniques in a wide variety of search environments. Such research is becoming more urgent. Economic and other reasons for the scarcity of online thesauri are reviewed and suggestions are made for methods to secure revenue from thesaurus display facilities. Finally, the promising outlook for renewed develop ment of controlled vocabularies with more effective online display techniques is mentioned, although such development must be based on firm research of user behaviour and needs.


Author(s):  
C.W. Nielsen ◽  
B. Ricks ◽  
D. Bruernmer ◽  
D. Few ◽  
M. Walton ◽  
...  
Keyword(s):  

Author(s):  
Neil Dantam ◽  
Carlos Nieto-Granda ◽  
Henrik I. Christensen ◽  
Mike Stilman
Keyword(s):  

Author(s):  
Nelli A. Krasovskaya ◽  

This article discusses the semantics of lexical units included in the thematic group ‘Plant World’. For a person with a traditional worldview, nature is the basis for the formation of a system of views, values, for numerous rethinking. The material for analysis in the article is provided not by a lexicographic source but by a linguo-geographical one. A collection of maps of the recently published first issue of The Plant World of the Lexical Atlas of Russian Folk Dialects allows us to make rather interesting observations. Work with the material of semantic maps makes it possible not only to establish changes in the semantics of lexical units but also to find areas that are associated with the use of a word in one or another secondary meaning. In some cases, there were created duplicate maps devoted solely to the functioning of lexical units in extended sense. Systemic analysis of maps makes it possible to identify patterns in the semantic shifts of lexemes denoting facts and phenomena of the world around as the main meaning. There have been revealed semantic shifts of lexemes from the thematic group ‘Plant World’ to the field of subject, locative and anthropomorphic registers. Such examples of the extensive use of words are not unexpected for the Russian language. It should also be emphasized that the analysis of comments and other materials accompanying maps allows us to establish the features of shifts in semantics. It has been determined that a shift to the subject and locative semantic register is mainly associated with metonymy mechanisms, while a shift to the area of the anthropomorphic semantic register – with the metaphorical transfer mechanisms. The author draws conclusions concerning both the use of map materials for analyzing the extension of semantics and the features of secondary nominations in lexemes belonging to the thematic group ‘Plant World’.


Author(s):  
Medhini Narasimhan ◽  
Erik Wijmans ◽  
Xinlei Chen ◽  
Trevor Darrell ◽  
Dhruv Batra ◽  
...  
Keyword(s):  

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