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Related Concept Videos

Associative Learning01:27

Associative Learning

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Associative learning is a fundamental concept in behavioral psychology, wherein a connection is established between two stimuli or events, leading to a learned response. This process is critical in understanding how behaviors are acquired and modified. Conditioning, the mechanism through which associations are formed, can be divided into two main types: classical conditioning and operant conditioning, each elucidating different aspects of associative learning.
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Learning is the process of acquiring knowledge or skills through practice or experience, leading to long-lasting behavioral changes. This acquisition occurs through interaction with the environment and requires practice or experience. For instance, mastering a skill such as surfing requires considerable practice and experience, highlighting the essential role of repeated interactions with the environment in learning.
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E. C. Tolman emphasized the purposiveness of behavior — the idea that much of our behavior is goal-directed. For instance, employees who aim for a promotion work diligently to meet their targets. Tolman argued that when classical conditioning and operant conditioning occur, the organism acquires certain expectations. In classical conditioning, a child might fear a dog because they expect it to bite. In operant conditioning, a person might consistently work overtime because they expect a...
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Cognitive learning is based on purposive behavior, incidental learning, and insight learning.
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Observational Learning01:12

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Albert Bandura's observational learning, also known as imitation or modeling, occurs when a person observes and imitates another's behavior. It is a quicker process than operant conditioning. A well-known example is the Bobo doll study, where children who saw an adult acting aggressively towards the doll were more likely to act aggressively when left alone, compared to those who observed a nonaggressive adult. Many psychologists view observational learning as a form of latent learning...
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Social psychology examines how the real or imagined presence of others influences individuals' thoughts, feelings, and behaviors. A key concept in this field is the role of social context in shaping behavior. The same individual may act differently depending on the social setting, due to the varying expectations and norms associated with each environment. This context-dependent behavior illustrates the influence of social roles, which prescribe appropriate conduct in specific situations.Social...
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Related Experiment Video

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Augmenting Large Language Models via Vector Embeddings to Improve Domain-Specific Responsiveness
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Unsupervised Word Embedding Learning by Incorporating Local and Global Contexts.

Yu Meng1, Jiaxin Huang1, Guangyuan Wang1

  • 1Department of Computer Science, University of Illinois at Urbana-Champaign, Champaign, IL, United States.

Frontiers in Big Data
|March 11, 2021
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Summary

This study introduces novel unsupervised word embedding models that combine local and global contexts. These models enhance word representations, improving performance in word similarity and text classification tasks.

Keywords:
global contextslocal contextsunsupervised learningword embeddingword semantics

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Area of Science:

  • Natural Language Processing
  • Machine Learning

Background:

  • Word embeddings learn distributed representations to encode word semantics.
  • Current methods primarily model local word contexts, which only partially capture semantics.

Purpose of the Study:

  • To propose novel unsupervised word embedding models that integrate both local and global contexts.
  • To enhance the learning of word representations by capturing broader semantic aspects.

Main Methods:

  • Developed two simple yet effective unsupervised models for word embedding.
  • Jointly modeled local and global contexts, assuming a generative relationship between words and contexts.
  • Provided theoretical interpretations of the joint modeling approach.

Main Results:

  • The proposed models achieved superior performance on word similarity tasks.
  • Demonstrated enhanced effectiveness in text classification tasks.
  • Quantitative analysis and case studies validated the models' performance.

Conclusions:

  • Jointly modeling local and global contexts significantly improves unsupervised word embedding.
  • The proposed models offer a simple and effective approach to learning richer word representations.
  • These enhanced representations benefit downstream natural language processing applications.