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Summary of Check Lists

Reference and Validation

$\bigcirc$ Identify the Reference (p. [*])
$\bigcirc$ Check the Reference for completeness (p. [*])
$\bigcirc$ Define the Validation Check List (p. [*])
- What is validated formally and to what extent?
- What is valdated manually (percentage) and to what extent?
- What is expected in the validation report?
- Time schedule?
$\bigcirc$ Set up a Validation Contract (p. [*])

Documentation 8.1

Check the provided documentation files for the following items:

Administrative Information

$\bigcirc$ Contact for requests regarding the corpus
$\bigcirc$ Number and type of media
$\bigcirc$ Content of each medium
$\bigcirc$ Copyright statement and intellectual property rights (IPR)
$\bigcirc$ Validation date(s)8.2
$\bigcirc$ Validation person(s)/institution(s)8.2

Technical Information

$\bigcirc$ Layout of media: file system type and directory structure
$\bigcirc$ File nomenclatura: explanation of codes used; no 'white spaces' in file names
$\bigcirc$ Formats of signal and annotation files: if non-standard formats are used, a full description is required and tools to convert this format into a standard format
$\bigcirc$ Coding: PCM linear, Mu-Law or A-Law; if other codings must be used, they must be fully described
$\bigcirc$ Compression: only widely supported compressions (e.g. zip, gzip) should be used
$\bigcirc$ Sampling rate: rates others than 8000, 11025, 16000, 22050, 32000, 44100 and 48000 should be reported
$\bigcirc$ Valid bits per sample: others than 8, 16 and 24 should be reported
$\bigcirc$ Used bytes per sample8.3
$\bigcirc$ Multiplexed signals: exact de-multiplexing algorithm; tools

Database Contents

$\bigcirc$ Clearly stated purpose of the recordings
$\bigcirc$ Speech type(s): multi-party conversations, human-human dialogues, human-machine dialogues, read sentences, connected and/or isolated digits, isolated words etc.
$\bigcirc$ Instruction to speakers (full copy)8.2

Linguistic Contents of Prompted Speech

$\bigcirc$ Specification of the individual text items
$\bigcirc$ Specification for the prompt sheet design or
$\bigcirc$ Specification of the design of the speech prompts
$\bigcirc$ Example prompt sheet or
$\bigcirc$ Example sound file from the speech prompting8.2

Linguistic Contents of Non-Prompted Speech

$\bigcirc$ Multi-party: Number of speakers, topics, discussed, type of setting (formal/informal)
$\bigcirc$ Human-human dialogues: type of dialogue (problem solving, information seeking, chat etc.), relation between speakers, topic(s) discussed, type of setting, scenarios
$\bigcirc$ Human-machine dialogues: domain(s), topic(s), dialogue strategy followed by the machine (system driven, mixed initiative), type of system (test, operational service, Wizard-of-Oz8.2)

Speaker Information

$\bigcirc$ Speaker recruitment strategies
$\bigcirc$ Number of speakers
$\bigcirc$ Distribution of speakers over sex, age, dialect regions
$\bigcirc$ Description/definition of dialect regions

Recording platform and recording conditions

$\bigcirc$ Recording platform
$\bigcirc$ Position and type of microphone(s)
$\bigcirc$ Company name and type id
$\bigcirc$ Electret, dynamic, condenser
$\bigcirc$ Directional properties
$\bigcirc$ Mounting
$\bigcirc$ Position of speaker(s) (distance to microphone)
$\bigcirc$ Bandwidth (if other than zero to half of sampling rate)
$\bigcirc$ Number of channels and channel separation
$\bigcirc$ Acoustical environment8.2
... plus for telephone recordings
$\bigcirc$ Recording hardware, telephone link (analog, digital)
$\bigcirc$ Network from where the call originated
$\bigcirc$ Type of handset

... plus for recording in the automobile environment

$\bigcirc$ Recording hardware8.2
$\bigcirc$ Type of vehicle
$\bigcirc$ Average speed of vehicle
$\bigcirc$ Status of windows (open/closed)
$\bigcirc$ Type of pavement
$\bigcirc$ Audio equipment playing during the recording
Annotation (for each of the contained annotations)
$\bigcirc$ Unambiguous spelling standard used in annotations
$\bigcirc$ Labeling symbols
$\bigcirc$ List of non-standard spellings (dialectal variation, names etc.)
$\bigcirc$ Distinction of homographs which are not homophones
$\bigcirc$ Character set used in annotations
$\bigcirc$ Any other language dependent information (such as abbreviations etc.)
$\bigcirc$ Annotation manual, guidelines, instructions
$\bigcirc$ Description of quality assurance procedures
$\bigcirc$ Selection of annotators
$\bigcirc$ Training of annotators
$\bigcirc$ Annotation tools used
$\bigcirc$ Format
$\bigcirc$ Text-to-phoneme procedure
$\bigcirc$ Explanation or reference to the phoneme set
$\bigcirc$ Phonological or higher order phenomena accounted for in the phonemic transcriptions
Statistical Information
$\bigcirc$ Frequency of sub-word units: phonemes (diphones, triphones, syllables, ...)
$\bigcirc$ Word frequency table
$\bigcirc$ Any other essential language-dependent information or convention
$\bigcirc$ Indication of how many files were double-checked by the producer together with percentage of detected errors

Automatic Validation

$\bigcirc$ Media (p. [*])
$\bigcirc$ Completeness (p. [*])
$\bigcirc$ File naming (p. [*])
$\bigcirc$ Readability, Empty Files (p. [*])
$\bigcirc$ Signal Format (p. [*])
$\bigcirc$ Annotation, Meta data, Lexicon Format (p. [*])
$\bigcirc$ Parse Annotation for Content (p. [*])
$\bigcirc$ Character codes (p. [*])
$\bigcirc$ Cross Checks on Meta Data (p. [*])
$\bigcirc$ Cross Checks on Summary Listings (p. [*])
$\bigcirc$ Tools, Software (p. [*])

Manual Validation

$\bigcirc$ Organize the validator group and training (p. [*])
$\bigcirc$ Define the validation contents (p. [*])
$\bigcirc$ Select the data sample (p. [*])
$\bigcirc$ Decide on the validation method (p. [*])
- One-pass Check
- Multiple-pass Check
- One-pass Re-annotation
- Multi-pass Re-annotation
$\bigcirc$ Select and test the validation tools (p. [*])
$\bigcirc$ Organize Logistics (p. [*])
- Checking method: create copies with special markers
- Recruit only native speakers of same expertise level
- Define error schemes
- Database, server / client architecture

Validation Report

$\bigcirc$ Executive summary, overall result (one sentence)
$\bigcirc$ List of all checks, results, methodology (error listings in appendix)
$\bigcirc$ List of the used tools and programs
$\bigcirc$ Manual validation techniques, selection, statistics
$\bigcirc$ Other relevant observations
$\bigcirc$ Comments

next up previous contents
Next: WWWTranscribe Up: The Validation of Speech Previous: Bibliography   Contents
Angela Baumann 2004-06-03