{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2019:ZIA6JNE3U6YH77XWPQ44LQZ5IS","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"9b499efc140f4c3bcd8ddd25bbf127cf9d8c3b9b7dce09199d62b503278ead74","cross_cats_sorted":["cs.CL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2019-08-12T08:04:42Z","title_canon_sha256":"1cef067c7f07ff7567b4b3d6d320fb068a424e005581e41830c18aaf24b4bda6"},"schema_version":"1.0","source":{"id":"1908.04042","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1908.04042","created_at":"2026-07-04T23:53:20Z"},{"alias_kind":"arxiv_version","alias_value":"1908.04042v1","created_at":"2026-07-04T23:53:20Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1908.04042","created_at":"2026-07-04T23:53:20Z"},{"alias_kind":"pith_short_12","alias_value":"ZIA6JNE3U6YH","created_at":"2026-07-04T23:53:20Z"},{"alias_kind":"pith_short_16","alias_value":"ZIA6JNE3U6YH77XW","created_at":"2026-07-04T23:53:20Z"},{"alias_kind":"pith_short_8","alias_value":"ZIA6JNE3","created_at":"2026-07-04T23:53:20Z"}],"graph_snapshots":[{"event_id":"sha256:cc66647707834cd571f9ce94ba80a1ef0548ebc33362148818a01f1e5c55b0cf","target":"graph","created_at":"2026-07-04T23:53:20Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/1908.04042/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"In this paper, we present our work to support publishers and editors in finding descriptive tags for e-books through tag recommendations. We propose a hybrid tag recommendation system for e-books, which leverages search query terms from Amazon users and e-book metadata, which is assigned by publishers and editors. Our idea is to mimic the vocabulary of users in Amazon, who search for and review e-books, and to combine these search terms with editor tags in a hybrid tag recommendation approach. In total, we evaluate 19 tag recommendation algorithms on the review content of Amazon users, which r","authors_text":"Dieter Theiler, Dominik Kowald, Elisabeth Lex, Emanuel Lacic, Lucky Kuffer, Matthias Traub, Stefanie Lindstaedt","cross_cats":["cs.CL"],"headline":"","license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2019-08-12T08:04:42Z","title":"Evaluating Tag Recommendations for E-Book Annotation Using a Semantic Similarity Metric"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1908.04042","kind":"arxiv","version":1},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:633ba113a9e3d4fca78d4291d70e2f7c2c1646f08eea56ff0ffbb01ce6f9dc6c","target":"record","created_at":"2026-07-04T23:53:20Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"9b499efc140f4c3bcd8ddd25bbf127cf9d8c3b9b7dce09199d62b503278ead74","cross_cats_sorted":["cs.CL"],"license":"http://creativecommons.org/licenses/by/4.0/","primary_cat":"cs.IR","submitted_at":"2019-08-12T08:04:42Z","title_canon_sha256":"1cef067c7f07ff7567b4b3d6d320fb068a424e005581e41830c18aaf24b4bda6"},"schema_version":"1.0","source":{"id":"1908.04042","kind":"arxiv","version":1}},"canonical_sha256":"ca01e4b49ba7b07ffef67c39c5c33d449279780dc89bb8d359189832230e64fe","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"ca01e4b49ba7b07ffef67c39c5c33d449279780dc89bb8d359189832230e64fe","first_computed_at":"2026-07-04T23:53:20.255091Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-04T23:53:20.255091Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"VTpXkaJRDp/qBxZLV5NAAsKiWONyIdSxkePBimXU4nkRkx8ClgJ/z9+U5gDPkrhZG4M9J0OkdbZTU2vTVydGDQ==","signature_status":"signed_v1","signed_at":"2026-07-04T23:53:20.255494Z","signed_message":"canonical_sha256_bytes"},"source_id":"1908.04042","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:633ba113a9e3d4fca78d4291d70e2f7c2c1646f08eea56ff0ffbb01ce6f9dc6c","sha256:cc66647707834cd571f9ce94ba80a1ef0548ebc33362148818a01f1e5c55b0cf"],"state_sha256":"4dfc2e540fba9bd5531b72d0d58be56465328271163cadac83cca99c02dc29e6"}