Metric-Based Inductive Learning Using Semantic Height Functions

نویسندگان

  • Zdravko Markov
  • Ivo Marinchev
چکیده

In the present paper we propose a consistent way to integrate syntactical least general generalizations lgg s with semantic evaluation of the hypotheses For this purpose we use two di erent relations on the hypothesis space a constructive one used to generate lgg s and a semantic one giving the coverage based evaluation of the lgg These two relations jointly implement a semantic distance measure The for mal background for this is a height based de nition of a semi distance in a join semi lattice We use some basic results from lattice theory and introduce a family of language independent coverage based height func tions The theoretical results are illustrated by examples of solving some basic inductive learning tasks

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Composite Kernel Optimization in Semi-Supervised Metric

Machine-learning solutions to classification, clustering and matching problems critically depend on the adopted metric, which in the past was selected heuristically. In the last decade, it has been demonstrated that an appropriate metric can be learnt from data, resulting in superior performance as compared with traditional metrics. This has recently stimulated a considerable interest in the to...

متن کامل

An Algebraic Approach to Inductive Learning

The paper presents a framework to induction of concept hierarchies based on consistent integration of metric and similarity based approaches The hierarchies used are subsump tion lattices induced by the least general generalization operator lgg commonly used in inductive learning Using some basic results from lattice theory the paper introduces a semantic distance measure between objects in con...

متن کامل

Inductively generated trust alignments based on shared interactions

In open multi-agent systems trust models are an important tool for agents to achieve effective interactions. However, the agents do not necessarily use similar trust models, leading to semantic differences between trust evaluations in the different agents. We show how to form a trust alignment by considering the interactions agents share. We describe a method, using inductive learning algorithm...

متن کامل

یادگیری نیمه نظارتی کرنل مرکب با استفاده از تکنیک‌های یادگیری معیار فاصله

Distance metric has a key role in many machine learning and computer vision algorithms so that choosing an appropriate distance metric has a direct effect on the performance of such algorithms. Recently, distance metric learning using labeled data or other available supervisory information has become a very active research area in machine learning applications. Studies in this area have shown t...

متن کامل

Word Embeddings as Metric Recovery in Semantic Spaces

Continuous word representations have been remarkably useful across NLP tasks but remain poorly understood. We ground word embeddings in semantic spaces studied in the cognitive-psychometric literature, taking these spaces as the primary objects to recover. To this end, we relate log co-occurrences of words in large corpora to semantic similarity assessments and show that co-occurrences are inde...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000