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We can still parse using syntactic rules

About

This research introduces a new parsing approach, based on earlier syntactic work on context free grammar (CFG) and generalized phrase structure grammar (GPSG). The approach comprises both a new parsing algorithm and a set of syntactic rules and features that overcome the limitations of CFG. It also generates both dependency and constituency parse trees, while accommodating noise and incomplete parses. The system was tested on data from Universal Dependencies, showing a promising average Unlabeled Attachment Score (UAS) of 54.5% in the development dataset (7 corpora) and 53.8% in the test set (12 corpora). The system also provides multiple parse hypotheses, allowing further reranking to improve parsing accuracy. This approach also leverages much of the theoretical syntactic work since the 1950s to be used within a computational context. The application of this approach provides a transparent and interpretable NLP model to process language input.

Ghaly Hussein• 2026

Related benchmarks

TaskDatasetResultRank
Dependency ParsingUD CHILDES (dev)
UAS60
13
Dependency ParsingUD CHILDES (test)
UAS0.6
13
Dependency ParsingUD ATIS (dev)
Correct Tokens3.75e+3
3
Dependency ParsingUD ESLSPOK (dev)
Correct Tokens1.35e+3
3
Dependency ParsingUD PARTUT (dev)
Correct Tokens Count1.51e+3
3
Dependency ParsingUD ATIS (test)
Correct Tokens3.57e+3
3
Dependency ParsingUD PARTUT (test)
Correct Tokens1.89e+3
3
Dependency ParsingUD EWT (dev)
Correct Tokens1.31e+4
3
Dependency ParsingUD LINES (dev)
Correct Tokens1.18e+4
3
Dependency ParsingUD GUM (dev)
Correct Tokens1.43e+4
3
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