{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2018:I2PSAU7UVFHGEGQOOQDRVRBHEV","short_pith_number":"pith:I2PSAU7U","canonical_record":{"source":{"id":"1807.02039","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-07-05T14:58:32Z","cross_cats_sorted":[],"title_canon_sha256":"12cc0b38eea6c58c34fb3fa702e191f390858f9d4ffd4c265b2a58068bd1e834","abstract_canon_sha256":"ee28fa4f63cba17d3b4a32390790065d389a15e99c6df24067b3bb4ca7e37219"},"schema_version":"1.0"},"canonical_sha256":"469f2053f4a94e621a0e74071ac427255cd5927dded8d5ce23393d1dcac9b419","source":{"kind":"arxiv","id":"1807.02039","version":1},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.02039","created_at":"2026-05-18T00:11:24Z"},{"alias_kind":"arxiv_version","alias_value":"1807.02039v1","created_at":"2026-05-18T00:11:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.02039","created_at":"2026-05-18T00:11:24Z"},{"alias_kind":"pith_short_12","alias_value":"I2PSAU7UVFHG","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"I2PSAU7UVFHGEGQO","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"I2PSAU7U","created_at":"2026-05-18T12:32:28Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2018:I2PSAU7UVFHGEGQOOQDRVRBHEV","target":"record","payload":{"canonical_record":{"source":{"id":"1807.02039","kind":"arxiv","version":1},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-07-05T14:58:32Z","cross_cats_sorted":[],"title_canon_sha256":"12cc0b38eea6c58c34fb3fa702e191f390858f9d4ffd4c265b2a58068bd1e834","abstract_canon_sha256":"ee28fa4f63cba17d3b4a32390790065d389a15e99c6df24067b3bb4ca7e37219"},"schema_version":"1.0"},"canonical_sha256":"469f2053f4a94e621a0e74071ac427255cd5927dded8d5ce23393d1dcac9b419","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T00:11:24.396808Z","signature_b64":"scmCPxSMFw4fGGbUGggtcFYB9YN64vmqmFlEKUQivWWswTXK4Q4yNUluncU8/KjIJMRcooGZP1nlW9y3HpkIBg==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"469f2053f4a94e621a0e74071ac427255cd5927dded8d5ce23393d1dcac9b419","last_reissued_at":"2026-05-18T00:11:24.396177Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T00:11:24.396177Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"1807.02039","source_version":1,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:11:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"8StNs9IULgCredkAsA62faP/fxAXk7cKPDu55OxydEpmL/ya6G67sIUWJn5uGFelSxYMIF+XNYKSTMp/IJIADw==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:02:27.894382Z"},"content_sha256":"0675201d11a4c529b2fbe31e7a2088845f0b08756271c8791af49fafec93840e","schema_version":"1.0","event_id":"sha256:0675201d11a4c529b2fbe31e7a2088845f0b08756271c8791af49fafec93840e"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2018:I2PSAU7UVFHGEGQOOQDRVRBHEV","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Towards a simplified ontology for better e-commerce search","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.IR","authors_text":"Aliasgar Kutiyanawala, Prateek Verma, Zheng (John) Yan","submitted_at":"2018-07-05T14:58:32Z","abstract_excerpt":"Query Understanding is a semantic search method that can classify tokens in a customer's search query to entities such as Product, Brand, etc. This method can overcome the limitations of bag-of-words methods but requires an ontology. We show that current ontologies are not optimized for search and propose a simplified ontology framework designed specifically for e-commerce search and retrieval. We also present three methods for automatically extracting product classes for the proposed ontology and compare their performance relative to each other."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.02039","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"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-05-18T00:11:24Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"dioncCGzYnPxpl/ybYnCL96flTuVGL0MFdaP1NpErUtECZTvNwkRBv4/atzRa/HIn97fhDl3qVps+xs8wnZPDg==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-05-25T21:02:27.895061Z"},"content_sha256":"bb0af8418f7a85466d947b3254081a1f7e7e7719359f35cda978f577146111fc","schema_version":"1.0","event_id":"sha256:bb0af8418f7a85466d947b3254081a1f7e7e7719359f35cda978f577146111fc"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I2PSAU7UVFHGEGQOOQDRVRBHEV/bundle.json","state_url":"https://pith.science/pith/I2PSAU7UVFHGEGQOOQDRVRBHEV/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I2PSAU7UVFHGEGQOOQDRVRBHEV/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":"2026-05-25T21:02:27Z","links":{"resolver":"https://pith.science/pith/I2PSAU7UVFHGEGQOOQDRVRBHEV","bundle":"https://pith.science/pith/I2PSAU7UVFHGEGQOOQDRVRBHEV/bundle.json","state":"https://pith.science/pith/I2PSAU7UVFHGEGQOOQDRVRBHEV/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I2PSAU7UVFHGEGQOOQDRVRBHEV/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2018:I2PSAU7UVFHGEGQOOQDRVRBHEV","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":"ee28fa4f63cba17d3b4a32390790065d389a15e99c6df24067b3bb4ca7e37219","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-07-05T14:58:32Z","title_canon_sha256":"12cc0b38eea6c58c34fb3fa702e191f390858f9d4ffd4c265b2a58068bd1e834"},"schema_version":"1.0","source":{"id":"1807.02039","kind":"arxiv","version":1}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"1807.02039","created_at":"2026-05-18T00:11:24Z"},{"alias_kind":"arxiv_version","alias_value":"1807.02039v1","created_at":"2026-05-18T00:11:24Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.1807.02039","created_at":"2026-05-18T00:11:24Z"},{"alias_kind":"pith_short_12","alias_value":"I2PSAU7UVFHG","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_16","alias_value":"I2PSAU7UVFHGEGQO","created_at":"2026-05-18T12:32:28Z"},{"alias_kind":"pith_short_8","alias_value":"I2PSAU7U","created_at":"2026-05-18T12:32:28Z"}],"graph_snapshots":[{"event_id":"sha256:bb0af8418f7a85466d947b3254081a1f7e7e7719359f35cda978f577146111fc","target":"graph","created_at":"2026-05-18T00:11:24Z","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":"Query Understanding is a semantic search method that can classify tokens in a customer's search query to entities such as Product, Brand, etc. This method can overcome the limitations of bag-of-words methods but requires an ontology. We show that current ontologies are not optimized for search and propose a simplified ontology framework designed specifically for e-commerce search and retrieval. We also present three methods for automatically extracting product classes for the proposed ontology and compare their performance relative to each other.","authors_text":"Aliasgar Kutiyanawala, Prateek Verma, Zheng (John) Yan","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-07-05T14:58:32Z","title":"Towards a simplified ontology for better e-commerce search"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.02039","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":"sha256:0675201d11a4c529b2fbe31e7a2088845f0b08756271c8791af49fafec93840e","target":"record","created_at":"2026-05-18T00:11:24Z","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":"ee28fa4f63cba17d3b4a32390790065d389a15e99c6df24067b3bb4ca7e37219","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.IR","submitted_at":"2018-07-05T14:58:32Z","title_canon_sha256":"12cc0b38eea6c58c34fb3fa702e191f390858f9d4ffd4c265b2a58068bd1e834"},"schema_version":"1.0","source":{"id":"1807.02039","kind":"arxiv","version":1}},"canonical_sha256":"469f2053f4a94e621a0e74071ac427255cd5927dded8d5ce23393d1dcac9b419","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"469f2053f4a94e621a0e74071ac427255cd5927dded8d5ce23393d1dcac9b419","first_computed_at":"2026-05-18T00:11:24.396177Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-05-18T00:11:24.396177Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"scmCPxSMFw4fGGbUGggtcFYB9YN64vmqmFlEKUQivWWswTXK4Q4yNUluncU8/KjIJMRcooGZP1nlW9y3HpkIBg==","signature_status":"signed_v1","signed_at":"2026-05-18T00:11:24.396808Z","signed_message":"canonical_sha256_bytes"},"source_id":"1807.02039","source_kind":"arxiv","source_version":1}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:0675201d11a4c529b2fbe31e7a2088845f0b08756271c8791af49fafec93840e","sha256:bb0af8418f7a85466d947b3254081a1f7e7e7719359f35cda978f577146111fc"],"state_sha256":"2df78c02d44ce1483a361c08b6bee847b765547361e129fd6dec425ecb53fc3d"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"vgxK+p6CoDPoAnvrs5bg6jxRSVpNCyCGFFWdrNBoCQYEzj78WDf/9TfQogfME245L54P+Z62TfsngWzyRlDQCA==","signed_message":"bundle_sha256_bytes","signed_at":"2026-05-25T21:02:27.899055Z","bundle_sha256":"085762c9add68a99316c13719e77d508659d2b155138fe2f24c1ee71faa246fb"}}