Bidirectional Contextual Resolution
نویسنده
چکیده
This paper describes a formalism and implementation for the interpretation and generation of sentences containing context dependent constructs like determiners, pronouns, focus, and ellipsis. A variant of ‘quasi-logical form’ is used as an underspecified meaning representation, related to ‘resolved logical forms’ via ‘conditional equivalences’. These equivalences define the interpretation of contextually dependent constructs with respect to a given context. Higher order unification and abduction are used in relating expressions to contexts. The conditional equivalences can be used unchanged in both the interpretation and the generation direction.
منابع مشابه
Bidirectional Contextual Grammars
The present paper introduces and discusses bidirectional contextual grammars as a straightforward generalization of externally generating contextual grammars without choice. In essence, besides ordinary derivation steps, the bidirectional contextual grammars can also make reduction steps, which shorten the rewritten strings. This paper demonstrates that these grammars characterize the family of...
متن کاملOn compositionality and bidirectional optimization
In this paper we revisit the semantic principle of compositionality and argue that compositionality is bidirectional optimization. Underspecification approaches to natural language interpretation generally start with an underspecified or weak meaning, which is strengthened by contextual information. By contrast, the bidirectional optimization approach we advocate proceeds from the strongest pos...
متن کاملBidirectional Recurrent Convolutional Networks for Multi-Frame Super-Resolution
Super resolving a low-resolution video is usually handled by either single-image super-resolution (SR) or multi-frame SR. Single-Image SR deals with each video frame independently, and ignores intrinsic temporal dependency of video frames which actually plays a very important role in video super-resolution. Multi-Frame SR generally extracts motion information, e.g., optical flow, to model the t...
متن کاملSampling of Bidirectional Reflectance from Multiangular High Resolution Airborne Imagery
The present investigation describes a method for sampling bidirectional reflectance information from multiangular airborne images. The method uses high resolution surface models in the determination of the location of the imaged point on the ground and in the image, and finally the orientation of the measured surface fragment. Two test sites were imaged with a wide range of azimuth angles at tw...
متن کاملContextual Bidirectional Long Short-Term Memory Recurrent Neural Network Language Models: A Generative Approach to Sentiment Analysis
Traditional learning-based approaches to sentiment analysis of written text use the concept of bag-of-words or bag-of-ngrams, where a document is viewed as a set of terms or short combinations of terms disregarding grammar rules or word order. Novel approaches de-emphasize this concept and view the problem as a sequence classification problem. In this context, recurrent neural networks (RNNs) h...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Computational Linguistics
دوره 26 شماره
صفحات -
تاریخ انتشار 2000