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Marchant, N.; Canessa, E.; Chaigneau, S.E. |
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Title |
An adaptive linear filter model of procedural category learning |
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2022 |
Publication |
Cognitive Processing |
Abbreviated Journal |
Cogn. Process. |
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23 |
Issue |
3 |
Pages |
393-405 |
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Keywords |
Category learning; Procedural categorization; Adaptive filter; Mathematical modeling |
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Abstract |
We use a feature-based association model to fit grouped and individual level category learning and transfer data. The model assumes that people use corrective feedback to learn individual feature to categorization-criterion correlations and combine those correlations additively to produce classifications. The model is an Adaptive Linear Filter (ALF) with logistic output function and Least Mean Squares learning algorithm. Categorization probabilities are computed by a logistic function. Our data span over 31 published data sets. Both at grouped and individual level analysis levels, the model performs remarkably well, accounting for large amounts of available variances. When fitted to grouped data, it outperforms alternative models. When fitted to individual level data, it is able to capture learning and transfer performance with high explained variances. Notably, the model achieves its fits with a very minimal number of free parameters. We discuss the ALF's advantages as a model of procedural categorization, in terms of its simplicity, its ability to capture empirical trends and its ability to solve challenges to other associative models. In particular, we discuss why the model is not equivalent to a prototype model, as previously thought. |
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1612-4782 |
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WOS:000791062800001 |
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UAI @ alexi.delcanto @ |
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1567 |
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Chaigneau, S.E.; Canessa, E.; Lenci, A.; Devereux, B. |
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Title |
Eliciting semantic properties: methods and applications |
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Year |
2020 |
Publication |
Cognitive Processing |
Abbreviated Journal |
Cogn. Process. |
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Volume |
21 |
Issue |
4 |
Pages |
583-586 |
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Asking subjects to list semantic properties for concepts is essential for predicting performance in several linguistic and non-linguistic tasks and for creating carefully controlled stimuli for experiments. The property elicitation task and the ensuing norms are widely used across the field, to investigate the organization of semantic memory and design computational models thereof. The contributions of the current Special Topic discuss several core issues concerning how semantic property norms are constructed and how they may be used for research aiming at understanding cognitive processing. |
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[Chaigneau, Sergio E.; Canessa, Enrique] Univ Adolfo Ibanez, Ctr Cognit Res CINCO, Avda Presidente Errazuriz, Santiago 3328, Chile, Email: sergio.chaigneau@uai.cl |
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Springer Heidelberg |
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English |
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1612-4782 |
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WOS:000577853600001 |
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UAI @ alexi.delcanto @ |
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1233 |
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Canessa, E.; Chaigneau, S.E.; Moreno, S.; Lagos, R. |
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Title |
Informational content of cosine and other similarities calculated from high-dimensional Conceptual Property Norm data |
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2020 |
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Cognitive Processing |
Abbreviated Journal |
Cogn. Process. |
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21 |
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601-614 |
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Cosine similarity; Euclidean distance; Chebyshev distance; Clustering; Conceptual properties |
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To study concepts that are coded in language, researchers often collect lists of conceptual properties produced by human subjects. From these data, different measures can be computed. In particular, inter-concept similarity is an important variable used in experimental studies. Among possible similarity measures, the cosine of conceptual property frequency vectors seems to be a de facto standard. However, there is a lack of comparative studies that test the merit of different similarity measures when computed from property frequency data. The current work compares four different similarity measures (cosine, correlation, Euclidean and Chebyshev) and five different types of data structures. To that end, we compared the informational content (i.e., entropy) delivered by each of those 4 x 5 = 20 combinations, and used a clustering procedure as a concrete example of how informational content affects statistical analyses. Our results lead us to conclude that similarity measures computed from lower-dimensional data fare better than those calculated from higher-dimensional data, and suggest that researchers should be more aware of data sparseness and dimensionality, and their consequences for statistical analyses. |
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[Canessa, Enrique; Chaigneau, Sergio E.] Univ Adolfo Ibanez, Sch Psychol, Ctr Cognit Res CINCO, Ave Presidente Errazuriz 3328, Santiago, Chile, Email: ecanessa@uai.cl |
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Springer Heidelberg |
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1612-4782 |
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WOS:000546845700001 |
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UAI @ eduardo.moreno @ |
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1180 |
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Canessa, E, Chaigneau, S.E, Moreno, S. |
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Title |
Describing and understanding the time course of the Property Listing Task |
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Year |
2023 |
Publication |
Cognitive Processing |
Abbreviated Journal |
Cogn. Process. |
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Early Access |
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Keywords |
concepts; property listing task; conceptual properties norms; semantic access; mathematical model |
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To study linguistically coded concepts, researchers often resort to the Property Listing Task (PLT). In a PLT, participants are asked to list properties that describe a concept (e.g., for DOG, subjects may list �is a pet�, �has four legs�, etc.). When PLT data is collected for many concepts, researchers obtain Conceptual Properties Norms (CPNs), which are used to study semantic content and as a source of control variables. Though the PLT and CPNs are widely used across psychology, only recently a model that describes the listing course of a PLT has been developed and validated. That original model describes the listing course using order of production of properties. Here we go a step beyond and validate the model using response times (RT), i.e., the time from cue onset to property listing. Our results show that RT data exhibits the same regularities observed in the previous model, but now we can also analyze the time course, i.e., dynamics of the PLT. As such, the RT validated model may be applied to study several similar memory retrieval tasks, such as the Free Listing Task, Verbal Fluidity Task, and to examine related cognitive processes. To illustrate those kinds of analyses, we present a brief example of the difference in PLT�s dynamics between listing properties for abstract versus concrete concepts, which shows that the model may be fruitfully applied to study concepts. |
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1612-4782 |
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WOS:001066936400001 |
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UAI @ alexi.delcanto @ |
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1856 |
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