{"reviews":[{"answer_id":"a001","verdict":"uncertain","rationale":"The source names wav2letter as inspiration and discusses hybrid and end-to-end systems, but does not provide the comparison tables needed to identify the actual baselines. It is therefore unclear whether wav2letter and hybrid models were among those evaluated as baselines.","source_span_ids":["s00002","s00003","s00004","s00037","s00040"],"issues":[{"type":"source_ambiguity","claim":"The source does not establish which named model families were used as experimental baselines.","answer_quote":"wav2letter, hybrid ASR models, and other end-to-end speech recognition models.","source_span_ids":["s00002","s00003","s00004","s00037","s00040"]}]},{"answer_id":"a002","verdict":"uncertain","rationale":"The source identifies wav2letter as inspiration and says models trained on the same data were compared for Hub5'00, but the referenced results tables are absent. It does not establish that wav2letter and conventional hybrid models were specific baselines.","source_span_ids":["s00002","s00003","s00040"],"issues":[{"type":"source_ambiguity","claim":"The available source does not identify the specific comparison baselines.","answer_quote":"wav2letter, conventional hybrid ASR models, and other models trained on the same benchmark datasets.","source_span_ids":["s00002","s00003","s00040"]}]},{"answer_id":"a003","verdict":"correct","rationale":"The comparison tables are referenced but not included in the source, so the specific baselines cannot be identified from the available text.","source_span_ids":["s00037","s00038","s00040"],"issues":[]},{"answer_id":"a004","verdict":"uncertain","rationale":"The source describes wav2letter as inspiration and mentions comparisons on the benchmarks, but the comparison tables are not present. Whether wav2letter itself was a baseline cannot be determined.","source_span_ids":["s00003","s00037","s00040"],"issues":[{"type":"source_ambiguity","claim":"The source does not establish wav2letter as an evaluated baseline.","answer_quote":"wav2letter and other speech recognition models evaluated on the same datasets.","source_span_ids":["s00003","s00037","s00040"]}]},{"answer_id":"a005","verdict":"uncertain","rationale":"The paper aims to match or outperform non-end-to-end models and reports results relative to end-to-end models, but it identifies wav2letter as inspiration rather than explicitly as a baseline. The comparison tables are unavailable.","source_span_ids":["s00003","s00004","s00006","s00037"],"issues":[{"type":"source_ambiguity","claim":"The source does not establish wav2letter as a comparison baseline.","answer_quote":"including wav2letter","source_span_ids":["s00003","s00004","s00037"]}]},{"answer_id":"a006","verdict":"correct","rationale":"The answer gives the broad comparison categories supported by the paper: non-end-to-end models and other end-to-end speech recognition models. The available source does not include the tables needed to name individual systems.","source_span_ids":["s00004","s00006","s00037"],"issues":[]},{"answer_id":"a007","verdict":"correct","rationale":"The paper states its aim of matching or outperforming non-end-to-end models and explicitly compares against models trained on the same data for Hub5'00. The answer describes these comparisons at a broad level.","source_span_ids":["s00004","s00040"],"issues":[]},{"answer_id":"a008","verdict":"uncertain","rationale":"The source discusses hybrid systems and identifies wav2letter as inspiration, while also mentioning comparisons against models trained on the same data. The missing comparison tables prevent verification that the named systems were baselines.","source_span_ids":["s00002","s00003","s00040"],"issues":[{"type":"source_ambiguity","claim":"The source does not establish wav2letter and hybrid models as specific evaluated baselines.","answer_quote":"wav2letter, hybrid non-end-to-end ASR models, and other models trained on the same benchmark datasets.","source_span_ids":["s00002","s00003","s00040"]}]}]}