{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2017:B55PYKSJUNKIKLBRGYVYO6FTKJ","short_pith_number":"pith:B55PYKSJ","canonical_record":{"source":{"id":"1706.07625","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-06-23T10:09:59Z","cross_cats_sorted":[],"title_canon_sha256":"bc258a099a89ad29dc17f3bff62ac6c05b9421a923147bce71d9e82101c02906","abstract_canon_sha256":"2558422bf7d7a896e762e532c67975370e22287e4d6f332b8ce423a488085032"},"schema_version":"1.0"},"canonical_sha256":"0f7afc2a49a354852c31362b8778b3526bf26087ccfb938c1f14032eececd70d","source":{"kind":"arxiv","id":"1706.07625","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.07625","created_at":"2026-05-18T00:40:02Z"},{"alias_kind":"arxiv_version","alias_value":"1706.07625v2","created_at":"2026-05-18T00:40:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.07625","created_at":"2026-05-18T00:40:02Z"},{"alias_kind":"pith_short_12","alias_value":"B55PYKSJUNKI","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"B55PYKSJUNKIKLBR","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"B55PYKSJ","created_at":"2026-05-18T12:31:08Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2017:B55PYKSJUNKIKLBRGYVYO6FTKJ","target":"record","payload":{"canonical_record":{"source":{"id":"1706.07625","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-06-23T10:09:59Z","cross_cats_sorted":[],"title_canon_sha256":"bc258a099a89ad29dc17f3bff62ac6c05b9421a923147bce71d9e82101c02906","abstract_canon_sha256":"2558422bf7d7a896e762e532c67975370e22287e4d6f332b8ce423a488085032"},"schema_version":"1.0"},"canonical_sha256":"0f7afc2a49a354852c31362b8778b3526bf26087ccfb938c1f14032eececd70d","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:40:02.956555Z","signature_b64":"3qe/zM5WbhIKEZeDA4/Som3b5EuSwn0aJLQAq+brtOulfxkteVx4xBbPT7kF2FMcmSY2Rz5fDJLZfLUOMrIkAQ==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"0f7afc2a49a354852c31362b8778b3526bf26087ccfb938c1f14032eececd70d","last_reissued_at":"2026-05-18T00:40:02.955903Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:40:02.955903Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1706.07625","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:40:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"WgpmPoFievC204Nnc5yBqcPlBwKKkXQzYa5kDmGZujQq5K8bN1sYywd3uAVkS9RJd7AVQdYbmyT8TxO/EUW5BQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T20:30:02.827920Z"},"content_sha256":"6eb6521dc659b9ba93262cfdcfa98d0b46363d7e5470d41a36dd073953776fea","schema_version":"1.0","event_id":"sha256:6eb6521dc659b9ba93262cfdcfa98d0b46363d7e5470d41a36dd073953776fea"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2017:B55PYKSJUNKIKLBRGYVYO6FTKJ","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Specializing Joint Representations for the task of Product Recommendation","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Elena Smirnova, Flavian Vasile, Thomas Nedelec","submitted_at":"2017-06-23T10:09:59Z","abstract_excerpt":"We propose a unified product embedded representation that is optimized for the task of retrieval-based product recommendation. To this end, we introduce a new way to fuse modality-specific product embeddings into a joint product embedding, in order to leverage both product content information, such as textual descriptions and images, and product collaborative filtering signal. By introducing the fusion step at the very end of our architecture, we are able to train each modality separately, allowing us to keep a modular architecture that is preferable in real-world recommendation deployments. W"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.07625","kind":"arxiv","version":2},"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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:40:02Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"21VH1KbbgBE82Ggp2JBGFRE9lUV4onVU9qxNnRZAJbjRWwH5lFMIRw+/W/jb07FwE5xDmH8AZnU9yW/dD5wFAA==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-06-05T20:30:02.828683Z"},"content_sha256":"3af9c4e96f0be19f1b4a6fa422a7de80a217cd74a276b5ed4145f2ee54ae10ba","schema_version":"1.0","event_id":"sha256:3af9c4e96f0be19f1b4a6fa422a7de80a217cd74a276b5ed4145f2ee54ae10ba"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/B55PYKSJUNKIKLBRGYVYO6FTKJ/bundle.json","state_url":"https://pith.science/pith/B55PYKSJUNKIKLBRGYVYO6FTKJ/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/B55PYKSJUNKIKLBRGYVYO6FTKJ/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-06-05T20:30:02Z","links":{"resolver":"https://pith.science/pith/B55PYKSJUNKIKLBRGYVYO6FTKJ","bundle":"https://pith.science/pith/B55PYKSJUNKIKLBRGYVYO6FTKJ/bundle.json","state":"https://pith.science/pith/B55PYKSJUNKIKLBRGYVYO6FTKJ/state.json","well_known_bundle":"https://pith.science/.well-known/pith/B55PYKSJUNKIKLBRGYVYO6FTKJ/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2017:B55PYKSJUNKIKLBRGYVYO6FTKJ","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":"2558422bf7d7a896e762e532c67975370e22287e4d6f332b8ce423a488085032","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-06-23T10:09:59Z","title_canon_sha256":"bc258a099a89ad29dc17f3bff62ac6c05b9421a923147bce71d9e82101c02906"},"schema_version":"1.0","source":{"id":"1706.07625","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1706.07625","created_at":"2026-05-18T00:40:02Z"},{"alias_kind":"arxiv_version","alias_value":"1706.07625v2","created_at":"2026-05-18T00:40:02Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1706.07625","created_at":"2026-05-18T00:40:02Z"},{"alias_kind":"pith_short_12","alias_value":"B55PYKSJUNKI","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_16","alias_value":"B55PYKSJUNKIKLBR","created_at":"2026-05-18T12:31:08Z"},{"alias_kind":"pith_short_8","alias_value":"B55PYKSJ","created_at":"2026-05-18T12:31:08Z"}],"graph_snapshots":[{"event_id":"sha256:3af9c4e96f0be19f1b4a6fa422a7de80a217cd74a276b5ed4145f2ee54ae10ba","target":"graph","created_at":"2026-05-18T00:40:02Z","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"},"paper":{"abstract_excerpt":"We propose a unified product embedded representation that is optimized for the task of retrieval-based product recommendation. To this end, we introduce a new way to fuse modality-specific product embeddings into a joint product embedding, in order to leverage both product content information, such as textual descriptions and images, and product collaborative filtering signal. By introducing the fusion step at the very end of our architecture, we are able to train each modality separately, allowing us to keep a modular architecture that is preferable in real-world recommendation deployments. W","authors_text":"Elena Smirnova, Flavian Vasile, Thomas Nedelec","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-06-23T10:09:59Z","title":"Specializing Joint Representations for the task of Product Recommendation"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1706.07625","kind":"arxiv","version":2},"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":"sha256:6eb6521dc659b9ba93262cfdcfa98d0b46363d7e5470d41a36dd073953776fea","target":"record","created_at":"2026-05-18T00:40:02Z","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":"2558422bf7d7a896e762e532c67975370e22287e4d6f332b8ce423a488085032","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2017-06-23T10:09:59Z","title_canon_sha256":"bc258a099a89ad29dc17f3bff62ac6c05b9421a923147bce71d9e82101c02906"},"schema_version":"1.0","source":{"id":"1706.07625","kind":"arxiv","version":2}},"canonical_sha256":"0f7afc2a49a354852c31362b8778b3526bf26087ccfb938c1f14032eececd70d","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"0f7afc2a49a354852c31362b8778b3526bf26087ccfb938c1f14032eececd70d","first_computed_at":"2026-05-18T00:40:02.955903Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:40:02.955903Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"3qe/zM5WbhIKEZeDA4/Som3b5EuSwn0aJLQAq+brtOulfxkteVx4xBbPT7kF2FMcmSY2Rz5fDJLZfLUOMrIkAQ==","signature_status":"signed_v1","signed_at":"2026-05-18T00:40:02.956555Z","signed_message":"canonical_sha256_bytes"},"source_id":"1706.07625","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:6eb6521dc659b9ba93262cfdcfa98d0b46363d7e5470d41a36dd073953776fea","sha256:3af9c4e96f0be19f1b4a6fa422a7de80a217cd74a276b5ed4145f2ee54ae10ba"],"state_sha256":"8b7934b91554f2bc93aa2b2f71557cda50531a3db8cee1cf3ae359a57d6a61fd"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"s8ruYYZxjNtYlg3ucm88yTWuq7wn13W83dS8UlKCzLk25x/+2YfJ4QR5ifsjIjQzEG7AaSAJudn2y/3kZtZgCQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-06-05T20:30:02.833000Z","bundle_sha256":"4dd2269e1629f0313428dc026d1d63311cdbe7f91051e88acce1d28b7414af0d"}}