{"record_type":"pith_number_record","schema_url":"https://pith.science/schemas/pith-number/v1.json","pith_number":"pith:2015:W46VKZVU2ZADNSTSWWKTJBIR3V","short_pith_number":"pith:W46VKZVU","schema_version":"1.0","canonical_sha256":"b73d5566b4d64036ca72b595348511dd576b38d3aa004a881731dde152db8cb0","source":{"kind":"arxiv","id":"1507.08120","version":1},"attestation_state":"computed","paper":{"title":"Improving Reachability and Navigability in Recommender Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SI"],"primary_cat":"cs.IR","authors_text":"Daniel Lamprecht, Denis Helic, Markus Strohmaier","submitted_at":"2015-07-29T12:44:49Z","abstract_excerpt":"In this paper, we investigate recommender systems from a network perspective and investigate recommendation networks, where nodes are items (e.g., movies) and edges are constructed from top-N recommendations (e.g., related movies). In particular, we focus on evaluating the reachability and navigability of recommendation networks and investigate the following questions: (i) How well do recommendation networks support navigation and exploratory search? (ii) What is the influence of parameters, in particular different recommendation algorithms and the number of recommendations shown, on reachabil"},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1507.08120","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2015-07-29T12:44:49Z","cross_cats_sorted":["cs.SI"],"title_canon_sha256":"766ab7d728e56c01e36af5756e4137bdc3cb03ab8c7cad7e351fbef0e0fd7de4","abstract_canon_sha256":"7e47b76a2976df8b39127c28e64842e8cf12b87b72613b8b65bbd42aac72bf16"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:36:08.277040Z","signature_b64":"iIOxiziegayrmalCP2g4FlOdTgcoTc3aEHM5rnrX8SnoN5cPDWU4HZ1N9HDJy/favNRUvEdbxzvpsgUHxXH0Dw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"b73d5566b4d64036ca72b595348511dd576b38d3aa004a881731dde152db8cb0","last_reissued_at":"2026-05-18T01:36:08.276541Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:36:08.276541Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Improving Reachability and Navigability in Recommender Systems","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["cs.SI"],"primary_cat":"cs.IR","authors_text":"Daniel Lamprecht, Denis Helic, Markus Strohmaier","submitted_at":"2015-07-29T12:44:49Z","abstract_excerpt":"In this paper, we investigate recommender systems from a network perspective and investigate recommendation networks, where nodes are items (e.g., movies) and edges are constructed from top-N recommendations (e.g., related movies). In particular, we focus on evaluating the reachability and navigability of recommendation networks and investigate the following questions: (i) How well do recommendation networks support navigation and exploratory search? (ii) What is the influence of parameters, in particular different recommendation algorithms and the number of recommendations shown, on reachabil"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1507.08120","kind":"arxiv","version":1},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"aliases":[{"alias_kind":"arxiv","alias_value":"1507.08120","created_at":"2026-05-18T01:36:08.276608+00:00"},{"alias_kind":"arxiv_version","alias_value":"1507.08120v1","created_at":"2026-05-18T01:36:08.276608+00:00"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1507.08120","created_at":"2026-05-18T01:36:08.276608+00:00"},{"alias_kind":"pith_short_12","alias_value":"W46VKZVU2ZAD","created_at":"2026-05-18T12:29:47.479230+00:00"},{"alias_kind":"pith_short_16","alias_value":"W46VKZVU2ZADNSTS","created_at":"2026-05-18T12:29:47.479230+00:00"},{"alias_kind":"pith_short_8","alias_value":"W46VKZVU","created_at":"2026-05-18T12:29:47.479230+00:00"}],"events":[],"event_summary":{},"paper_claims":[],"inbound_citations":{"count":0,"internal_anchor_count":0,"sample":[]},"formal_canon":{"evidence_count":0,"sample":[],"anchors":[]},"links":{"html":"https://pith.science/pith/W46VKZVU2ZADNSTSWWKTJBIR3V","json":"https://pith.science/pith/W46VKZVU2ZADNSTSWWKTJBIR3V.json","graph_json":"https://pith.science/api/pith-number/W46VKZVU2ZADNSTSWWKTJBIR3V/graph.json","events_json":"https://pith.science/api/pith-number/W46VKZVU2ZADNSTSWWKTJBIR3V/events.json","paper":"https://pith.science/paper/W46VKZVU"},"agent_actions":{"view_html":"https://pith.science/pith/W46VKZVU2ZADNSTSWWKTJBIR3V","download_json":"https://pith.science/pith/W46VKZVU2ZADNSTSWWKTJBIR3V.json","view_paper":"https://pith.science/paper/W46VKZVU","resolve_alias":"https://pith.science/api/pith-number/resolve?arxiv=1507.08120&json=true","fetch_graph":"https://pith.science/api/pith-number/W46VKZVU2ZADNSTSWWKTJBIR3V/graph.json","fetch_events":"https://pith.science/api/pith-number/W46VKZVU2ZADNSTSWWKTJBIR3V/events.json","actions":{"anchor_timestamp":"https://pith.science/pith/W46VKZVU2ZADNSTSWWKTJBIR3V/action/timestamp_anchor","attest_storage":"https://pith.science/pith/W46VKZVU2ZADNSTSWWKTJBIR3V/action/storage_attestation","attest_author":"https://pith.science/pith/W46VKZVU2ZADNSTSWWKTJBIR3V/action/author_attestation","sign_citation":"https://pith.science/pith/W46VKZVU2ZADNSTSWWKTJBIR3V/action/citation_signature","submit_replication":"https://pith.science/pith/W46VKZVU2ZADNSTSWWKTJBIR3V/action/replication_record"}},"created_at":"2026-05-18T01:36:08.276608+00:00","updated_at":"2026-05-18T01:36:08.276608+00:00"}