OpenViSTAI · Agents · Blockchain · Crypto
Menu
AI Models

Open Sesame

Open Sesame is an open-source Python frame-semantic parsing system that detects FrameNet frames and their associated frame elements in sentences. Its model uses softmax-margin segmental recurrent neural networks with a syntactic scaffold, and the repository documents separate target, frame and argument identification stages.

Independent OpenViST project profile, based on linked sources.

Open Sesame — OpenViST project profile in AI Models.
OpenViST project illustration. See the linked sources for product details.
Understand the project

Practical overview

When it fits

Use it when you need a codebase for FrameNet-based sentence annotation and can work with the documented Python, DyNet, NLTK, FrameNet and GloVe requirements.

Who it is for

  • NLP researchers experimenting with frame-semantic parsing and recurrent neural network models.
  • Developers preparing FrameNet sentence data for semantic annotation.

Documented uses

  • Identify FrameNet targets and frames in sentences.
  • Label the frame elements associated with identified frames.
  • Preprocess FrameNet XML and run staged parsing workflows that produce structured prediction files.
Before you choose

Requirements & limits

The project is distributed as a public GitHub repository under the Apache-2.0 license.

  • The parser expects FrameNet XML and documents FrameNet versions 1.5, 1.6 and 1.7, with 1.7 as the default.
  • The documented setup uses Python 3.7.9, DyNet 2.0.3 and NLTK 3.5, as well as specific NLTK data resources.
  • Preprocessing relies on 100-dimensional GloVe embeddings trained on six billion tokens.
  • Testing is a three-stage workflow: target identification, frame identification and argument identification, in that order.
  • The repository notes that pretrained models may not reproduce reported performance on another machine.

Check current requirements in the official documentation. Source-based guidance does not mean OpenViST has run or independently tested this project.

Source-based practical guide

Prepare FrameNet data for preprocessing

Set up the documented FrameNet and embedding inputs and convert the FrameNet data into the project’s required format.

Before you start

  • Python 3.7.9
  • DyNet 2.0.3 and NLTK 3.5, plus the averaged perceptron tagger and WordNet resources
  • Extracted FrameNet data in XML format, defaulting to version 1.7; versions 1.6 and 1.5 are also supported
  • 100-dimensional GloVe embeddings trained on six billion tokens

Steps

  1. Clone the repository and change into its directory.

  2. Place extracted FrameNet 1.7 data under $DATA/fndata-1.7/ and the extracted GloVe embeddings under $DATA/embeddings_glove/.

  3. If using a different FrameNet version or embeddings, adjust configurations/global_config.json as needed.

  4. Run the command below.

    Documented command
    python -m sesame.preprocess

Expected outcome

Preprocessed train, development and test files are written to `data/neural/fn1.7/`.

Guide limitations

  • The codebase accepts FrameNet XML; preprocessing discards incomplete or inconsistent annotations and logs them in preprocess-fn1.7.log.
  • The steps cover data preparation only, not training or running the parser.
Source-based practical guide

Run the documented frame-semantic test stages

Use the project’s test workflow with model files for target, frame and argument identification.

Before you start

  • Prepared data and model files in the repository’s expected locations
  • Python 3.7.9 with the documented DyNet and NLTK dependencies

Steps

  1. Run the target-identification model with the command below.

    Documented command
    python -m sesame.targetid --mode test --model_name $MODEL_NAME
  2. Run frame identification with the command below.

    Documented command
    python -m sesame.frameid --mode test --model_name $MODEL_NAME
  3. Run argument identification with the command below.

    Documented command
    python -m sesame.argid --mode test --model_name $MODEL_NAME

Expected outcome

The README specifies predictions under `logs/$MODEL_NAME/`; outputs are in a CoNLL 2009-like format and frame-elements format for frame and argument identification.

Guide limitations

  • The target, frame and argument stages must be executed in order; this workflow assumes their required models and inputs are already in place.
  • The README reports that pretrained models may not reproduce published performance on a different machine and recommends training and testing from scratch for closer reproduction.
Evidence and transparency

Sources & review

Source record details
Source availability
Active
Sources checked
17 October 2026
Original website title
swabhs/open-sesame · Official homepage title · retained in its source language